scholarly journals Rozsoshentsy forest area of Poltava-city green belt (soil-geobotanical and typological and characteristic)

2015 ◽  
Vol 16 (3-4) ◽  
pp. 18-24
Author(s):  
N. O. Vlasenko
Keyword(s):  
Forest Type ◽  
Sandy Loam ◽  
Growth Conditions ◽  
Forest Growth ◽  
Forest Area ◽  
Forest Types ◽  
White Poplar ◽  
Green Belt ◽  
Bottomland Forests ◽  
Forest Typology

Natural forests have their own ancient history, for this reason, their composition and structure reflect their existing conditions. In the artificial forests, only growth class and plantations general conditions can be in part the indicator of this residence. O. L. Belgard investigated natural biogeocoenosis and artificial cultural geocoenosis and worked up the detailed forest typology. The peculiarity of O. L. Belgard typology is biogeocoenological approach to the understanding and forest investigating based on G. M. Vysotskiy, G. F. Morozov, V. M. Suchkov ideas.  O. L. Belgard accepted the conception of forest biogeocoenosis the components of which are phytocoenosis, zoocoenosis, microbiota, climatope and adaphotope. Rozsoshentsy forestry consists of 87 planning compartments with a total area of 3130.0 hectares, is a part of National Enterprise “Poltava forestry” and is situated on its southern part on the territory of Poltava administrative district and Poltava city. There are no publications in the science literature that could systematically reflect the results of investigations taken place in Rozsoshentsy forest area.  Different scientists in different times investigated particular types of vegetations; the general characteristic of forests was specified in some works. The aim of our work is the forest typology investigation, ecological and biological, typological, soil and geobotanical peculiarities of natural and artificial forests of Rozsoshentsy forest area. For the fist time the investigation of natural and artificial forests of Rozsoshentsy forest area of Poltava-city green belt has been started according to the method of O. L. Belgard forest typology. Groups that were investigated inside the forestry are related to hydrotopes of bottomland forests with long-term flooding, bottomland forests with short-term flooding, noninundated with arena and ravine forests.  The forest type is defined by accessories to specific trophotope and hydrotope and connected with floodplain factor of certain place of existence. The main place in definition of ecotope peculiarities takes vegetations that fully reflect the dimensionality of conditions. There are some plant associations inside the forest type that give an idea about coenosis from the floristic point of view.  One or several associations can correspond to each forest type with direct species structure of tree, bushy and herbaceous layers. Artificial forests typological characteristic based on three taxonomic rank units: forest growth conditions type, ecological structure type and forest stand type. It was found out that the main forest types in structure of investigated forest area are oak, pine, sticky alder and aspen, poplar and birch forests. It means that main forest forming types are six types of wood.  Rozsoshentsy forest area of Poltava-city green belt dendroflora has 33 tree and bushy types, 24 genuses, 14 families, 2 rooms. The most popular forest types on the investigated territory according to the forest typology are new oak and pine trees – 31.9 % , new pine forests – 9.1 %, new and dry maple and linden forests – 27.2 % and 6.3 % correspondently. Forest accounts for 5.3 % of forested areas with excessive wet ground. The investigation that was carried out gave us an opportunity to find out four natural forest vegetation types: (new linden and hornbeam forest with wide grasses), Dn4 (alder forest with moist tall grasses), Dc3 (wet aspen forest with aise-weed), De3 (wet white poplar forest); and two types of artificial forest vegetations: De3 (wet white poplar forest) and AB1 (birch forest with dryish miscellaneous). Different variations of soils have been investigated. It was found out that in investigated natural phytocoenosis the type of forest growth conditions is clay loam with different variations: new (СГ2), wet (СГ3),  moist (СГ4); and wet sandy loam (СП3); in artificial cultural phytocoenosis the sandy loam is wet and dryish. The prevailing soil types on the territory of Rozsoshentsy forestry are dark grey podzolized forest loam, typical chernozem and podzolized hard loamy chernoozem, but in floodplain of the river Vorskla  is a peat-bog soils. The content of humus is 7–8 %. The depth of ground water deposits connected with deposits of brown-red underclay (impermeable horizon) and ranges according to the relief elements and soil degree of erosion from 15 to 34 m. Carbonates are absent in soil of Rozsoshentsy forest area. Water extract analysis tells about the lack of salinity, dry particles ranges between 0.05–0.2 %, PH is mostly alkaline. Detailed ecological and biological characteristics and establishing peculiarities of Rozsoshentsy forest area adaphotope will give an opportunity to reconstruct the existing Poltava-city green belt plantations and organize the stationary investigations with the aim of their employment and saving. 

scholarly journals Machine Learning for Tree Species Classification Using Sentinel-2 Spectral Information, Crown Texture, and Environmental Variables

2020 ◽  
Vol 12 (12) ◽  
pp. 2049
Author(s):  
Joongbin Lim ◽  
Kyoung-Min Kim ◽  
Eun-Hee Kim ◽  
Ri Jin
Keyword(s):  
Machine Learning ◽  
South Korea ◽  
Tree Species ◽  
North Korea ◽  
Forest Type ◽  
Forest Area ◽  
Training Data ◽  
Machine Learning Techniques ◽  
Forest Types

The most recent forest-type map of the Korean Peninsula was produced in 1910. That of South Korea alone was produced since 1972; however, the forest type information of North Korea, which is an inaccessible region, is not known due to the separation after the Korean War. In this study, we developed a model to classify the five dominant tree species in North Korea (Korean red pine, Korean pine, Japanese larch, needle fir, and Oak) using satellite data and machine-learning techniques. The model was applied to the Gwangneung Forest area in South Korea; the Mt. Baekdu area of China, which borders North Korea; and to Goseong-gun, at the border of South Korea and North Korea, to evaluate the model’s applicability to North Korea. Eighty-three percent accuracy was achieved in the classification of the Gwangneung Forest area. In classifying forest types in the Mt. Baekdu area and Goseong-gun, even higher accuracies of 91% and 90% were achieved, respectively. These results confirm the model’s regional applicability. To expand the model for application to North Korea, a new model was developed by integrating training data from the three study areas. The integrated model’s classification of forest types in Goseong-gun (South Korea) was relatively accurate (80%); thus, the model was utilized to produce a map of the predicted dominant tree species in Goseong-gun (North Korea).

scholarly journals Assessment of the condition of forest and postagrogenic soils of the Leningrad region and prospects of intensive forest growth in these areas

2018 ◽  
Author(s):  
Д.А. Данилов ◽  
А.В. Жигунов ◽  
Б.Н. Рябинин ◽  
А.А. Вайман
Keyword(s):  
Organic Matter ◽  
Total Nitrogen ◽  
Forest Soils ◽  
Forest Type ◽  
Organic Matter Content ◽  
Matter Content ◽  
Forest Growth ◽  
Forest Types ◽  
Fallow Lands ◽  
Postagrogenic Soils

Используя потенциальное плодородие посагрогенных почв, можно выращивать целевые древесные насаждения и получать балансовую и товарную древесину в более короткие сроки, чем на землях лесного фонда. Проблематика данного вопроса мало исследована и в настоящее время необходимо оценить перспективность выращивания насаждений высокой продуктивности на постагрогенных. Целью проведённого исследования было сравнение лесных и постагрогенных почв по таким параметрам, как содержание углерода органического вещества и общего азота, для прогнозирования перспективности организации хозяйства с ускоренным выращиванием продуктивных древесных насаждений на залежных землях. На постагрогенных и лесопокрытых землях были подобраны площади со сходными условиями почвообразования под спелыми древостоями, относящихся к типам леса: черничник, кисличник и дубравнотравный и почвенными комплексами постагрогенных залежных земель. Проводилась оценка ряда физико-химических показателей почв по общепринятым в почвоведении методикам: определялся гранулометрический состав, плотность сложения и мощность генетических почвенных горизонтов. Плотность сложения всех горизонтов оценивалась по Качинскому; определение углерода проводилось сухим озолением, общего азота по Кьельдалю, рН солевой вытяжки потенциометрическим методом.Анализ запасов углерода органического вещества (Сорг) и азота (Nобщ) в генетических горизонтах почв черничного, кисличного и дубравнотравного типов леса показывает увеличение содержания органического вещества и общего азота от черничного к дубравнотравному типу леса. Происходит снижение содержания органического углерода от гумусового горизонта к оподзоленному: в дубравнотравных типах леса – в 2,8; кисличных – в 7,6; в черничных – в 8,5 раз. Возобновление на постагрогенных землях носит куртинный характер или происходит по микро понижениям бывших борозд. Содержание органического вещества в пахотном горизонте данных участков постагрогенных земель находится на уровне кисличного типа леса. Содержание общего азота в данных почвах высокое от 5 до 7,4 т/га – на уровне дубравнотравного типа леса. Отношение С:N, которое характеризует обогащенность гумуса азотом, для большинства гумусовых горизонтов почв составляет 8–10, что отвечает высокой и средней степени обеспеченности этим элементом. По содержанию Сорг и Nобщ в верхнем горизонте почвы образуют следующий убывающий ряд: травяно-дубравный тип леса > залежные земли > кисличный тип леса > черничный тип леса > пашня. Проведённый сравнительный анализ физического и агрохимического состояния постагрогенных и лесных почв показал, что несмотря на предшествующее антропогенное воздействие, агрозёмный горизонт сохраняет высокое содержание органического вещества и общего азота. Ухудшение свойств постагрогенных почв на исследуемых участках не происходит и трансформации в сторону природных лесных почв региона не наблюдается, несмотря на длительный период залежности (свыше 30 лет). Соотношение углерода и азота в постагрогенных почвах по почвенному профилю показывает более высокое плодородие, чем в лесных почвах, где показатель С:N оптимален только части горизонта А1. Оценивая пригодность обследованных участков залежных земель на предмет ускоренного выращивания различных древесных пород для получения биомассы, можно констатировать, что уровень содержания органического вещества и общего азота превышает или соответствует условиям произрастания по IA –I классу бонитета для региона исследования. Using potential fertility mosagrogen soil you can grow of target woody plants and to balance and marketable timber in a shorter time than in the lands of the forest Fund. The problem of this issue is little investigated and now it is necessary to assess the prospects of growing high productivity plantations on postagrogenic. The aim of the study was to compare forest and postagrogenic soils in such parameters as the carbon content of organic matter and total nitrogen, to predict the prospects for the organization of the economy with the accelerated cultivation of productive tree plantations on fallow lands. In postagrogenic and wooded land were selected in the area with similar conditions of soil formation under ripe forest stands belonging to the forest types: myrtillus, oxalis and quercus-herbosa and postagrogenic soil complexes of fallow lands. Conducted assessment of some physico-chemical parameters of soil common in soil science methods: determined particle size distribution, the density of the composition and power of the genetic soil horizons. The density of addition of all horizons was estimated by Kaczynski; determination of carbon was carried out by dry ashing, total Kjeldahl nitrogen, pH salt extraction by the potentiometric method. Analysis of carbon stocks of organic matter (С) and nitrogen (N) in the genetic horizons of soils of blueberry, acidic and oak-grass forest types shows an increase in the content of organic matter and total nitrogen from blueberry to oak-grass forest type. There is a decrease in the content of organic carbon from the humus horizon to the ashed one: in quercus-herbosa forest types – 2.8, acidic – 7.6, myrtillus – 8.5 times. The postagrogenic restoration to the land is curtains character or occurs at the micro depressions of the former furrows. The organic matter content in the arable horizon of postagrogenic parcel of land be at the level of parents type of the wood. The content of total nitrogen in these soils is high from 5 to 7.4 t/ha – at the level of oak-grass forest type. The ratio C: N, which characterizes the enrichment of humus nitrogen, for most humus horizons of soils is 8-10, which corresponds to a high and medium degree of security with this element. According to the content of weeds and Communities in the upper horizon of the soil form the following decreasing series: quercus-herbosa type forest > lands >forest oxalis type > myrtillus type forest > arable land. Comparative analysis of physical and agrochemical condition of postagrogenic and forest soils showed that, in spite of previous anthropogenic impact, agronomy horizon maintains a high organic matter content and total nitrogen. Deterioration of the properties of postagrogenic soils in the study areas does not occur and transformation in the direction of natural forest soils of the region is not observed, despite the long period of occurrence (over 30 years). The ratio of carbon and nitrogen in postagrogenic soils by soil profile shows a higher fertility than in forest soils, where the indicator C:N is optimal only part of the horizon A1. Assessing the suitability of the surveyed areas of fallow lands for the accelerated cultivation of different species of wood to produce biomass, it can be stated that the level of organic matter and total nitrogen exceeds or corresponds to the conditions of growth in Ia –I class of bonitet for the region of the study.

scholarly journals Russian Approaches to the Forest Type Classification

2021 ◽  
Vol 906 (1) ◽  
pp. 012023
Author(s):  
Valery Fomin ◽  
Anna Mikhailovich
Keyword(s):  
Geographical Distribution ◽  
Russian Federation ◽  
Forest Type ◽  
Anthropogenic Factors ◽  
Genetic Approach ◽  
Habitat Conditions ◽  
Forest Types ◽  
The Russian Federation ◽  
Forest Typology ◽  
Type Classification

Abstract The results of researches characterizing the geographical distribution of forest-ecological, phytocoenotic, and genetic classifications of forest types in the Russian Federation nowadays are presented in the thesis. A comparative analysis was carried out for the following items: the inclusive concept of a classification unit (a type of habitat conditions; a type of forest); features of distinguishing the border of the classification units; classification features used to determine the type of habitat conditions; features of the classification of phytocoenoses used to determine the forest type; the degree to which the successional dynamics of forest stands are taken into consideration; the degree to which the influence of anthropogenic factors are taken into consideration; the level of implementation in forest management and forestry practice; regions of implementation. In the process of development of forest typologies, the concept of a forest type changed from understanding it as a forest area homogeneous by composition, structure, and appearance (homogeneity in space) in natural classifications to the concepts of a forest type, in which priority is given to homogeneity in origin (genesis), as well as developmental processes and dynamics (homogeneity in time) in genetic and dynamic typologies. Currently, there is the following forest type classification in the Russian Federation: forest-ecological, phytocoenotic, genetic, and dynamic. When classifying forest areas within the forest-ecological direction provided by E.V. Alekseev – P.S. Pogrebnyak, the priority is given to the characteristics of the habitat conditions. Within the phytocoenotic direction provided by V.N. Sukachev, the priority is given to the phytocoenosis characteristics. Within the genetic approach provided by B.A. Ivashkevich – B.P. Kolesnikov, a forest type is considered as a series of alternating phases – types of phytocoenosis within the same type of habitat conditions. In this case, phytocoenotic classifications can be a part of the genetic classifications for the climax forest phytocoenosis. And the dynamic approach provided by I.S. Melekhov is very close to the genetic one and is a superstructure over the classical phytocoenotic forest typology provided by V.N. Sukachev. The current use of forest typological classifications by forest inventory management enterprises in the Russian Federation was studied. A map of the geographical distribution of forest typologies of the above-listed directions of forest typology researches was created. Forest-ecological classifications are used mainly in the southern regions of the European part of Russia and the North Caucasus. Forest typologies created based on a genetic approach to the forest type classification are used in Western Siberia, in the south of the Far East and Eastern Siberia, and in some regions of the Urals. Phytocoenotic classifications of forest types are used in other regions of the Russian Federation.

scholarly journals Sustained Biomass Carbon Sequestration by China’s Forests from 2010 to 2050

Forests ◽  
2018 ◽  
Vol 9 (11) ◽  
pp. 689 ◽  
Author(s):  
Chunhua Zhang ◽  
Weimin Ju ◽  
Jingming Chen ◽  
Meihong Fang ◽  
Mengquan Wu ◽  
...  
Keyword(s):  
Carbon Sequestration ◽  
Northern Region ◽  
National Forest Inventory ◽  
Forest Growth ◽  
Forest Area ◽  
Stand Age ◽  
Biomass Carbon ◽  
Forest Types ◽  
Carbon Density ◽  
Middle Aged

China’s forests have functioned as important carbon sinks. They are expected to have substantial future potential for biomass carbon sequestration (BCS) resulting from afforestation and reforestation. However, previous estimates of forest BCS have included large uncertainties due to the limitations of sample size, multiple data sources, and inconsistent methodologies. This study refined the BCS estimation of China’s forests from 2010 to 2050 using the national forest inventory data (FID) of 2009−2013, as well as the relationships between forest biomass and stand age retrieved from field observations for major forest types in different regions of China. The results showed that biomass–age relationships were well-fitted using field data, with respective R2 values more than 0.70 (p < 0.01) for most forest types, indicating the applicability of these relationships developed for BCS estimation in China. National BCS would increase from 130.90 to 159.94 Tg C year−1 during the period of 2010−2050 because of increases in forest area and biomass carbon density, with a maximum of 230.15 Tg C year−1 around 2030. BCS for young and middle-aged forests would increase by 65.35 and 15.38 Tg C year−1, respectively. 187.8% of this increase would be offset by premature, mature, and overmature forests. During the study period, forest BCS would increase in all but the northern region. The largest contributor to the increment would be the southern region (52.5%), followed by the southwest, northeast, northwest, and east regions. Their BCS would be primarily driven by the area expansion and forest growth of young and middle-aged forests as a result of afforestation and reforestation. In the northern region, BCS reduction would occur mainly in the Inner Mongolia province (6.38 Tg C year−1) and be caused predominantly by a slowdown in the increases of forest area and biomass carbon density for different age–class forests. Our findings are in broader agreement with other studies, which provide valuable references for the validation and parameterization of carbon models and climate-change mitigation policies in China.

Evaluation of a mechanistic approach to mixedwood modelling

2008 ◽  
Vol 84 (2) ◽  
pp. 181-193 ◽  
Author(s):  
B. Seely ◽  
C. Hawkins ◽  
J A Blanco ◽  
C. Welham ◽  
J P Kimmins
Keyword(s):  
Species Interactions ◽  
Resource Competition ◽  
Forest Type ◽  
Forest Growth ◽  
Nutrient Competition ◽  
Forest Types ◽  
Support Tool ◽  
Management Interventions ◽  
Forest Growth Model

Mixed conifer–broadleaf forests (mixedwoods), covering more than a third of the productive forest landbase in BC, are highly valuable both as sources of fibre and as areas rich in biodiversity. In recognition of the multiple benefits of this forest type, management paradigms have transitioned from a focus on promoting conifer plantations in mixedwood areas to the management of intimate mixtures. The exceptionally dynamic growth properties and species interactions in mixedwood forests present a challenge for projecting the growth and development of different types of mixedwoods and their response to different silviculture systems. Here we evaluate the ability of a mechanistic forest growth model (FORECAST) to project patterns of stand growth and dynamics in two mixedwood forest types subjected to different silvicultural treatments. Model output is compared against field measurements from long-term silviculture trials in the Sub Boreal Spruce (SBS)—18 years, and Interior Cedar Hemlock (ICH)—10 years, biogeoclimatic zones in British Columbia, Canada. FORECAST was able to reproduce patterns of growth response in both mixedwood forest types with reasonable accuracy. An analysis of the simulated relative impact of light and nutrient competition on growth dynamics and treatment response is provided. Results suggest that competition for both light and nutrients are important factors in the dynamics of these mixedwood forest types and that long-term response data and modelling are required to adequately assess the rotation-length effects of treatments on stand development. The analysis described herein provides a level of confidence for the use of the model as a decision-support tool in these ecosystem types, but more validation work should be conducted across a range of different mixedwood forest types and management interventions as long-term datasets become available. Key words: FORECAST, mixedwood management, model testing, process-based model, resource competition

Soil and geobotanical, typological characteristics of bottomland forest with short-term flooding Poltava-city green belt

2015 ◽  
Vol 26 (3-4) ◽  
pp. 106-115
Author(s):  
N. O. Vlasenko
Keyword(s):  
Common Ground ◽  
Sandy Loam ◽  
Steppe Zone ◽  
Forest Steppe ◽  
Forest Site ◽  
Left Bank ◽  
Clay Loam ◽  
Short Term ◽  
Green Belt ◽  
Bottomland Forests

Carrying out its assignment Poltava-city green belt bottomland forests with short-term flooding, has significant anthropogenic impact, needs constant research of forest biogeocoenosis present day condition. There have been done the complex research of bottomland forests with short-term flooding which are located in the range of Poltava-city green belt. Forest types according to O. L. Belgard have been noted. Soil and geobotanical characteristics, soil sections macromorphological peculiarities have been given, results of soil water extracts analysis in the investigated forestry have been noted. Throuout the complex researches of all components of forest biogeocoenosis the learning of forest and environment coorelation that is due to anthropogenic effect is topical. Especially it concerns the big cities green belt of industrial regions that suffer from the human direct influence or indirect consequences of his living. Thereby the National special-purpose program «Forests of Ukraine» for 2010–2015 was approved the aim of which is a complex study of this category of forest-steppe zone forest biogeocoenosis. For this reason was made an accent to investigate all-round the Poltava-city green belt forests related to Poltava Region throuout the regional special-purpose program of forestry integrated development «Poltava region forests by 2015». To identify the soil and geobotanical characteristics of biogeocenosis and physical and chemical piculiarities of bottomland forests with short-term flooding adaphotop we will consider the most typical sample plots of different plantations according to its forest stand that grows in relatively identical conditions. Forest areas of Poltava-city green belt belongs to the eastern soil and climatic forest-steppe zone of Poltava Region and is situated in forest-stepp belt of Left bank of Dnipro inside the Dnipro and Donetsk dimple. The most common soils are deep, low humic chernozem and middle clay-loam soil. There are mulch and sandy, agrilloarenaceous soils in river valleys. The picture of exploration area ground structure looks in such a way. The most common ground species of the area is a loess-like clay loam. There are sands observed near the river bed of Vorskla and clay on steep slopes. Soddy-meadow and chernozem-meadow, sandy loam and clay loam soils are involved in the bottomland forests formation. Typical chernozem occupies significant territories, which is formed by herbaceous grouping of mesoxerophytes, euxerophytes and xeromesophytes. Floodplain soils are divided into three parts: riverine, central and terrace near flood plain. In the riverine part is formed the most light mechanical components of interbedding soils formed on new derived silt from slightly humic layers. There are a low percent of humus (not more than 1 %) and nutritional chemicals. Thereby their fertility is low. In the central part of floodplain had been formed the sandy loam and clay loam soils with stronger profile on the massive, often calcareous or carbonaceous parent rock material. In cases of flood the water is widely overflowed and stay for a long time rich in sludge particles. It is the richest soils of the floodplain. The done research gave us the opportunity to clear up that the bottomland forests with short-term flooding of Poltava-city green belt are consist mainly of oak, aspen and alder forests. The formation and distribution of the main associations of floodplain forests depend on the regime of floodplain, trophotop and relief inhomogenuity. It was noticed that it can be found three more typical natural forest vegetations related to bottomland forests with short-term flooding inside the Poltava-city green belt: Dc' 3 (moist linden oak forest with hairlike sedge), Dn / 4 (alder forest with muddy tall herbaceous vegetation), Dc / 2 (live aspen forest with). It was noticed, that in all investigated plant formations the forest site type is sandy loam with different variations: live (SP / 2), moist (SP / 3), muddy (SP / 4). Different variations of soil has been investigated. There is no carbonate in soils of the investigated biogeocenosis. Water extract analysis tell about the lack of salinity properties, dry particles ranges (0,05–0,2 %), pH is alkaline. Detailed soil and geobotanical characteristics and establishing peculiarities of bottomland forests with short-term flooding adaphotop will give opportunity to reconstruct the existing Poltava-city green belt plantations and organize the stationary investigations with the aim of their more rational employment and saving.

scholarly journals Типологічне різноманіття лісів на водозборі річки Сіверський Донець на території Луганської області

2017 ◽  
Vol 7 (3) ◽  
pp. 120-127
Author(s):  
O. B. Bondar ◽  
L. I. Tkach ◽  
O. O. Chuikova ◽  
A. S. Zolotarova
Keyword(s):  
Tree Species ◽  
Age Groups ◽  
Growth Conditions ◽  
Pine Forest ◽  
Forest Growth ◽  
Forest Area ◽  
Conifer Forest ◽  
Nature Protection ◽  
Total Size ◽  
Total Forest Area

Typological analysis of watershed forests of the Seversky Donets River was carried out on the basis of forest management data with electronic databases of "Ukrderzhlisproekt" Production Association. More than 27 types of forest were analyzed with total size of 228.2 thousand hectares. The classification of forest growth conditions, forest types and tree species on the left and right banks of the Seversky Donets River was done for the Luhansk region. We determined that the forest fund of the Luhansk region consists from the oak forests – 46.4 %, sudubrava – 21.1 %, conifer forest – 17.5 %. The proportion of coniferous forests makes up to 15.0 % of total forest area. We calculated that the area of common oak and common pine is 86.9 and 70.9·103 ha respectively. The following types of forests are prevailing: dry birchbark-marple sudubrava (30.8 %), fresh oak-pine sudubrava (13.1%), dry Tatarian maple sudubrava (12.9%), and fresh pine forest (10.6%). In the forest area of the Luhansk region we registered 70 tree species, of which 19 species – in oak-pine forest; 37 – in conifer forest; 55 – in sudubrava; 59 – in oak forest. By categories of protection the recreation forests (51.7 %) and protective forests (42.0 %) are the dominant. The forests of nature protection, forests of scientific, historical and cultural significance have only 6.4 % from the total forest area. The structure of forests by age groups was: middle-aged forests – 41.3 %, young growths – 17.8 %, ripening forests – 15.5 %, mature forests – 16.7 %, and old growth forests – 13.3 % from total forest area of Luhansk region.

scholarly journals Impact of forest growth conditions on the wood density: the case of Amur Region

2018 ◽  
Vol 60 (4) ◽  
pp. 292-298
Author(s):  
Natalia A. Romanova ◽  
Alexander B. Zhirnov ◽  
Natalia A. Yust ◽  
Xu Fucheng
Keyword(s):  
Wood Density ◽  
Far East ◽  
Growth Conditions ◽  
Amur Region ◽  
Forest Growth ◽  
Far East Of Russia ◽  
Density Determination ◽  
The Far East ◽  
First Time

Abstract The problem of determining the dependence of the chainsaw on the density of wood, substantiation of effective options for the number of chainsaws in the assortment and whiplash method of logging is quite relevant. In the Far East of Russia, in particular, in the Amur region, the forest growth conditions are different from the western ones, and therefore, the properties of the wood differ from the generally accepted ones. The article describes forest growth conditions that influence the properties of the wood in areas of the Amur region. Using the method of density determination, the density of larch, pine and birch were studied for first time in the areas of the region. The dependence of the density on humidity, age, species, season of the year and the area of growth was found out. The results of the research showed that under humidity of 70%, the density of larch was 1088.99 kg/m3, it was 919.8 kg/m3 for pine and it was for birch 915.9 kg/m3.

scholarly journals The woody flora of Shettihalli Wildlife Sanctuary, central Western Ghats of Karnataka, India - A checklist

2021 ◽  
Vol 13 (13) ◽  
pp. 20033-20055
Author(s):  
Naveen Babu Kanda ◽  
Kurian Ayushi ◽  
Vincy K. Wilson ◽  
Narayanan Ayyappan ◽  
Narayanaswamy Parthasarathy
Keyword(s):  
Western Ghats ◽  
Forest Cover ◽  
Forest Type ◽  
Human Impacts ◽  
Forest Types ◽  
Wildlife Sanctuary ◽  
Peninsular India ◽  
Ecological Features ◽  
Central Western Ghats ◽  
The Western Ghats

Documenting the biodiversity of protected areas and reserve forests is important to researchers, academicians and forest departments in their efforts to establish policies to protect regional biodiversity. Shettihalli Wildlife Sanctuary (SWS) is an important protected area located in the central Western Ghats of Karnataka state known for its diverse flora and fauna with distinct ecological features. For the last four decades the sanctuary has witnessed the loss of forest cover, yet the vegetation in few locations is relatively undisturbed. The current inventory was undertaken during 2019–2020 to provide a checklist of woody species from SWS under-researched earlier. The list comprises 269 species of trees, lianas and shrubs distributed in 207 genera and 68 families. The most diverse families are Fabaceae, Moraceae, Rubiaceae, Rutaceae, Lauraceae, Apocynaceae, Meliaceae, Malvaceae, Phyllanthaceae, and Anacardiaceae, representing 48% of total woody flora. The sanctuary shelters 263 native and six exotic plant species. Thirty-nine species were endemic to the Western Ghats, five species to peninsular India and one species to the Western Ghats and Andaman & Nicobar Islands. Four forest types, i.e., dry deciduous, moist deciduous, semi-evergreen, and evergreen forests, are represented in the sanctuary. Of the total species, only seven occurred in all forest types, while 111 species are exclusive to a single forest type. One-hundred-and-four taxa were assessed for the International Union for Conservation of Nature & Natural Resources (IUCN) Red List. Ten species that fall under Near Threatened, Vulnerable, and Endangered categories were encountered occasionally. The baseline data generated on plant diversity will be useful in highlighting the importance of these forests for species conservation and forest management. Such data form a cornerstone for further research. For instance, to understand the effect of invasive species and human impacts on the diversity of the region. 

scholarly journals UTILIZATION OF FOREST BY WOLASI SUB-DISRICT COMMUNITY, SOUTH SULAWESI

2019 ◽  
Vol 4 (2) ◽  
pp. 164 ◽  
Author(s):  
Nur Hasanah ◽  
H Hastuti
Keyword(s):  
Forest Management ◽  
Common Property ◽  
Forest Type ◽  
Environmental Law ◽  
Forest Products ◽  
Forest Area ◽  
Forest Community ◽  
Conservation Priorities ◽  
Forest Dependency ◽  
Trade Offs

This study aims to determine the utilization of forests conducted by communities in forest area of Wolasi sub-district. This research was conducted in Wolasi forest sub-district of Southeast Sulawesi Province. The research methods used were survey and interview with 86 and 87 respondents with purposive sampling by plotting two different villages characteristics to represent forest utilization form in different area (villages in lowland landforms) and Aoma village (village has the shape of hilly terrain). The result of this study examining the forests utilization of inhabitants in  Wolasi sub-district, which is represented by two topographic characteristics. Reseacher selected two similar conditions that engage the forest as a source of daily needs and workface that is considered as a resource, producing timber and non-timber products. Ranowila inhabitants occupations are dominated with farmers, while in Leleka village, despite being farmers, some inhabitants are craftsmen of non-timber forest products such as bamboo and rattan as well as furniture entrepreneur. This fact is influenced by residential areas that close to the forest and can be observed through the neighbourhood area which is close to the temporary forest area in Leleka Village. Temporary forest is located in an area which always extends land, since the topography circumstance encourages numerous people prefer to live closely towards their managed land. The forest is beneficial  both in the term of land utilization or  forest products,due to the distance there is limited knowledge,as well as limited work, it enhances low expenditure obtained. Keywords: Utilization, Forest, Community in District Wolasi References Adhikari, B., Di Falco, S., & Lovett, J. C. (2004). Household characteristics and forest dependency: evidence from common property forest management in Nepal. Ecological economics, 48(2), 245-257. Nurbaya & Efransjah (2018). The State of Indonesia’s Forests 2018. Jakarta: Ministry of Environment and Forestry Republic of Indonesia. Aryadi, M. (2012). Hutan rakyat: fenomenologi adaptasi budaya masyarakat. UPT Penerbitan, Universitas Muhammadiyah Malang. Banowati, E., & Sriyanto.(2013). Geografi Pertanian. Yogyakarta:Ombak. Cannon, C. H., Summers, M., Harting, J. R., & Kessler, P. J. (2007). Developing conservation priorities based on forest type, condition, and threats in a poorly known ecoregion: Sulawesi, Indonesia. Biotropica, 39(6), 747-759. Dudley, N., Schlaepfer, R., Jackson, W., Jeanrenaud, J. P., & Stolton, S. (2012). Forest quality: assessing forests at a landscape scale. Routledge. Gibson, L., Lee, T. M., Koh, L. P., Brook, B. W., Gardner, T. A., Barlow, J., ... & Sodhi, N. S. (2011). Primary forests are irreplaceable for sustaining tropical biodiversity. Nature, 478(7369), 378. Parrotta, J.A.(2015). The Historical, Environmental and Socio-economic Context of Forests and Tree-based Systems for Food Security and Nutrition. 1(3), 72-136. Pongtuluran, Y. (2015). Manajemen sumber daya alam dan lingkungan. Penerbit Andi. Silaen, A.P. (2008).Preservation of Forest and Environmental Functions Environmental Law Perspectives. 16 (3), 218-594. Suradi, S. (2012). Pertumbuhan Ekonomi dan Kesejahteraan Sosial. Sosio Informa, 17(3).  Wagner, S., Nocentini, S., Huth, F., & Hoogstra-Klein, M. (2014). Forest management approaches for coping with the uncertainty of climate change: trade-offs in service provisioning and adaptability. Ecology and Society, 19(1).   Wirakusumah, S. (2003). Mendambakan Kelestarian Sumber Daya Hutan Bagi Sebesar-Besarnya Kemakmuran Rakyat. Penerbit Universitas Indonesia. Jakarta. Cetakan Pertama.   Copyright (c) 2019 Geosfera Indonesia Journal and Department of Geography Education, University of Jember This work is licensed under a Creative Commons Attribution-Share A like 4.0 International License

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