scholarly journals Decoding of forest belts using satellite images

2021 ◽  
Vol 875 (1) ◽  
pp. 012065
Author(s):  
A V Koshelev ◽  
N A Tkachenko ◽  
M O Shatrovskaya

Abstract The paper presents the results of decoding the current condition of protective forest plantations of the Volgograd region and their digital inventory mapping on the basis of remote sensing methods and GIS technologies. We have applied a three-level analysis of the system of forest belts located within an administrative district, a farmstead, and a single forest belt. The laboratory visual interpretation of space images has allowed us to analyze the horizontal projection of the forest belts canopy and crowns, their placement in the canopy, as well as pattern and structure. We have also deciphered the signs of the prevailing patterns of tree species mixing. As a result of the research, we have created digital cartographic models of forest belts, compiled digital standards of elm stands in a given age period, assesse taxation and reclamation features of the current state of plantations. The results obtained can be used to monitor the state of plantings and create a local agroforestry GIS.

Author(s):  
Boris Polushkovsky ◽  
Anna Belova

The article analyzes the possibility of evaluating the current state of forest protection plant in the Stavropol Territory based on remote sensing data. With the help of photogrammetric and kartometric methods, space snapshots are analyzed for the model territory of the Stavropol Territory (Novoaleksandrovsky City District). The use of geo-information technologies allowed us using a cartographic method to estimate the current state of forest belt and determine their qualitative and quantitative characteristics. In the process of digitizing and decrypting, forest belts were divided into categories by destruction. In total, 2524 forest belts with a total area of 10.95 thousand hectares were allocated during the work. As a result, it was possible to assess the qualitative state of the forest belt of the Novoaleksandrovsky urban district and reveal that entire and slightly destroyed protective forest belts are greater than in quantitative terms and in the area they occupy. Further, in the process of the study, the quantitative characteristics of the forest belt were established—the area was determined, and the length and width of all protective forest plantations of the Novoaleksandrovsky urban district was determined and entered into an attribute table. It has been established that the width of most of the protective forest belt (1281 pcs) in the area of the study is from 20 to 30 meters, and 1001 forest belts have a width of more than 30 m. The most common length of forest belt is less than 500 m. (1034 pcs.) and 500–1000 meters (680 pcs.). Square characteristics of protective forest plantations are much more inhomogeneous—so, completely scaffolding was revealed 247 pcs., With a total area of 1058 hectares. Slightly destroyed forest belt 1623 pcs. and their area are 7395 hectares. Significantly destroyed forest belt 41 pcs., with an area of 1734 hectares and fully destroyed—44 pcs., with an area of 213.8 hectares. The proposed research methodology and evaluation of protective forest plantations can be used for other territories of the Stavropol Territory for a more complete study of the state of the region of the region.


2018 ◽  
Vol 7 (4) ◽  
pp. 25-32
Author(s):  
Владимир Вавин ◽  
Vladimir Vavin ◽  
Владимир Тунякин ◽  
Vladimir Tunyakin ◽  
Наталия Рыбалкина ◽  
...  

Khrenovskoy section of the "Special Expedition of the Forest Department of the Ministry of Agriculture and State Property for testing and accounting of various ways and methods of forestry and water management in the steppes of Russia" is located in the south-east of the Voronezh region. In the scientific literature this territory is called the "Stone Steppe". The expedition worked here from 1892 to 1898. The first planting was carried out by O.I. Kovalev and K.E. Sobenevsky foresters. In one plantation, many trees and shrubs were tested for their suitability for afforestation in the region. Successors of foresters of "Special expedition ..." G.F. Morozov and A.N. Mikhailov finally decided on the main species, having secured this status behind English oak tree, but taking into account the new requirements for creation of forest belts, the search for the best oak companions is still continuing. Currently, in the south-east of the Central Black Earth (Voronezh region) there are more than 126 thousand hectares of protective plantations on agricultural lands located near ravine and narrows. Most of them grow without forest management; many were exposed to fire and need reforestation measures. In the Stone Steppe, experimental restoration felling has been carried out since 1933, when the forest strips were 38 years old. The last experimental regenerative felling was carried out in the 63 years old summer plantation (forest belt No. 72). The possibility of coppice resumption and creation of oak plantations on felling was tested. Cultures are not preserved because of ill-timed clarification. In the coppice stands the breed composition has changed due to the reduction of oak, which is also explained by the untimely cleaning of oak coppice. There is a perspective in the coppice stands of maple-linden plantations and in old-growth mother stands of oak-maple ones, since in all variants maple young growth is viable and is available in sufficient quantity. The article shows that despite the minimum amount of oak in the composition of the parent stand, by 122 it will begin to take the leading place. The dynamics of the species composition of the 122-year-old water-protection forest stand is considered and the analysis of the results of reforestation cuttings is carried out in different age periods of this plantation. It has been established that the parent tree stand, despite its thinness, has a considerable stock of stem wood, English oak has leading position in vitality, and European ash and black ash ; in the most part, are limited in viability, elm that prevailed during planting was the last one in the old-growth plantation.


2021 ◽  
Vol 10 (2) ◽  
pp. 86-89
Author(s):  
Marina Yurievna Sautkina

The paper studies various groups of substances of secondary metabolism of phenolic nature in the leaves of model trees of English oak growing in the field-protective forest belts of the agroforestry complex Kamennaya Steppe. A physiological and biochemical analysis was carried out on samples of oak leaves from each tree in two stages - in the first decade of June and in early August. From each model tree 4-6 shoots of the lower tier of the southern exposure were selected. Significant biochemical diversity of the control and experimental groups of model oak trees was revealed. It is shown that the most significant fluctuations in the level of phenolic substances occur at the beginning of the growing season and then their content is stabilized. The informativeness of biochemical monitoring studies in the complex assessment of the current state of oak stands was confirmed. It is proved that the content of substances of secondary metabolism of phenolic nature and their combination can serve as a criterion of potential energy efficiency.


10.12737/6548 ◽  
2014 ◽  
Vol 9 (3) ◽  
pp. 144-146
Author(s):  
Пухачева ◽  
Lyudmila Pukhacheva

This article discusses ways to improve soil protective efficiency, reclamation use and preservation of protective forest plantations. In addition to the hydrological and soil protection functions, these spaces contribute to a more even distribution of snow on the protected spaces and prevent them blowing away in his beams, improve the microclimate of surrounding fields and, ultimately, increase the productivity of crops. Afforestation system is the basis of territorial and environmental framework, that ensures the stability of agro-ecosystems. The major role in improving forest conditions and, as a consequence, an increase in the growth of trees, played an impoundment ability of trenches. They created additional moisture due to the detention of surface runoff from melted snow and rain water. The sharp decline in water-erosion processes, transfer a surface flow to intersoil, improves the water regime of the territory and has a beneficial effect on the growth of pendent white birch. Thus, the use of reclamation of forest belts in the variant with trenches is the highest (100%), this can be explained by regular flow of meltwater in the forest area, as subsurface flow. The trench with filler intercepts virtually the entire flow, that is absorbed in its melted bottom and filler, and during the active snowmelt in the way of overflow of trenches, flowing is held earth mound on the border of the forest belt. As a consequence, the gullies and ravines are not formed on young woodland belt, that was benefit on the growth and survival of seedlings of pendent white birch.


Author(s):  
V. A. Silova ◽  

Purpose: to assess the state of dry steppe agroforestry landscapes in Volgograd region, to analyze changes in the values of the vegetation index of sown areas in relation to the width of the favorable protective effect of forest plantations to identify the possibility of using Earth remote sensing data to assess the yield of arable land in agroforestry landscapes. Materials and methods. The object of research is agroforestry landscapes of the dry steppe zone. The studies were carried out in Kalachevsky district Volgograd region. The research methods are based on the aerospace survey technique in combination with geoinformation technologies, interpretation and computer modeling in agroforestry landscapes. The analysis of arable land and the impact of protective forest plantations on arable land productivity was carried out using the Normalized Difference Vegetation Index (NDVI). Results. Dynamics of vegetation indices for the period 2017–2019 showed the relationship between the zone of favorable influence of the forest shelter belts and their level of degradation, which affected the state of winter wheat crops grown in the dry steppe zone, namely the NDVI values. The regularity of changes in the vegetation index is monitored when the safety of protective forest plantations changes. It is possible to determine the estimated yield of the field by the regression equations, applying the relationship between the vegetation index and the safety of forest belts, according to their zone of favorable influence. Conclusions: field-protective forest belts with high forest stand preservation form favorable protective conditions in the fields for growing crops at a distance of up to 300 m for the dry-steppe zone of Volgograd region, which is confirmed by high yields in the zone of influence of these forest plantations.


Author(s):  
A. I. Lobanov ◽  
V. V Mulyava ◽  
N. A. Konovalova

xModern forest shelter belts do not fully protect arable land and most often have a different life state. In theseconditions, the preservation of forest belts, their performance of protective functions in the system of agroforestry andother complex measures remains an urgent task. The studies were carried out in a field-protective forest belt located in thevicinity of the Oktyabrsky village of the Krasnoturansky district of the Krasnoyarsk Territory, where a temporary test plotwas laid using generally accepted methods. The aim of the research was to study the current state of this forest belt by identifying the sanitary state and preservation of the stand and growth rates of Scots pine. Analysis of the current state of thestand showed that the average category of the state of trees is 1.3 points. The stand safety is 44.9%. Pine trees at the age of 28after planting have reached an average height of 11.6 m with an average diameter of 19.1 cm. The forest belt has an optimalopenwork-blown design and is capable of self-renewal naturally. To prevent further degradation of arable leached chernozems in treeless areas of the steppe zone of the Krasnoyarsk Territory, it is advisable to create pine forest shelter belts.


Author(s):  
M. S. Yakuba ◽  
V. A. Gorban

Field protective forest plantings of the steppe zone of Ukraine are one of the most important links in the system of protective forest plantations on arable lands. The presence of well-functioning field protective forest belts is a fundamental condition for efficient agricultural production in the steppe regions of Ukraine. The paper presents the facts about the expediency of creating protective forest belts as an important measure to support the agricultural potential of the steppe zone of Ukraine. The current state of forest belts is analyzed and historical literature information on the creation and prospects of development of protective afforestation in the steppe of Ukraine is presented. The legal aspect of the mode of operation of field protective plantations is highlighted. Given the low forest cover of a large area of Ukraine, the difficult and ambiguous situation of afforestation of forest-deficient areas of the country, the creation of new and preservation of existing protective forest belts in the steppe zone of Ukraine is an extremely important task today. The problem of ensuring the effective functioning of field protective plantations in the conditions of ecological inconsistency of forest vegetation conditions for the existence of woody vegetation in Dnipropetrovsk region, in the zone of weeds-fescue-feathergrass steppes is acute. Against the background of a number of well-known indisputable facts about the positive impact of forest belts on the soil and climatic properties of steppe landscapes, the condition of most existing protective plantations today is unsatisfactory, and some of them – critical. Almost everywhere in Ukraine, in conditions of high plowed lands and the absence of forest strips or their neglected condition, there is a rapid destruction of the upper fertile layer of soil. This leads to soil degradation, reduced yields and causes great economic damage to the country. Mass uncontrolled logging, destruction of protective forest belts, their irrational use and lack of proper care are a critical problem of national scale and may soon turn into an environmental disaster. An acute modern problem in the existence and functioning of forest belts is the solution of the legal regime of field protective tree strips and the introduction of appropriate legislative state regulation. An equally painful problem for field protection strips today is the lack of reliable information about their real condition. Therefore, obtaining a general idea of the current state and dynamics of field protection strips is possible only if they conduct a detailed comprehensive study and conduct a thorough inventory. For successful planning and implementation of measures to increase the forest cover of forest-deficient regions with difficult forest vegetation conditions and create an effective system of protective forest belts should take into account the history and many years of experience in creating forest plantations in the steppe of Ukraine.


2019 ◽  
Vol 89 (10) ◽  
pp. 1044-1051
Author(s):  
Aleksandr S. Rulev ◽  
Anna M. Pugacheva

From acceptance of the 1948 Plan of Field-Protective Afforestation to the present (2019), this article considers the new agroforestry paradigms protracted formation. Scientific achievements from the 1940s, introduced into practice, served as the basis for decisions on natures global transformation. Pilot facilities from the beginning of the 20th century (the Bogdinsky agroforestry stronghold, the Stone-steppe oasis) still serve as reference objects for agroforest reclamation of territories, with a scientific approach that allows them to function productively today. The plans main idea is to combat drought and desertification of steppe lands, erosion processes, and to prevent sand and dust storms. Creation of 5709 thousand hectares of protective forests, afforestation of 1106 thousand hectares of ravines, fixing and afforestation of sand on an area of 322 thousand hectares, and implementation of many planned activities during a short period locate this plan among other ambitious international projects. The authors draw attention to the time of creation and the volume of plantings of paramount importance, that is, state protective forest belts and protective forest plantations. Understanding the importance of agroforestry for modern agricultural landscapes led to formation of sustainable and durable agroforestry systems in subarid landscapes based on a combination of agricultural and landscape-ecological ideologies. Allegedly, considering terrain ecotopes, three-dimensional evaluation of the agrolandscape and a non-linear approach make it possible to create multifunctional, highly productive agroforestry systems in critical agriculture zones.


Author(s):  
O.N. Baryshnikova ◽  
A.P. Olfert ◽  
A.G. Repko ◽  
Yu.I. Fatueva

On the example of the territory of the Altai Krai, the article traces the consequences of destruction of the natural landscapes structure, the creation of artificial elements of their ecological framework of agricultural landscapes, which currently needs restoration and optimization. The thesis is substantiated that the ecological frame of the Altai Krai territory should be as close as possible to the structure of its natural landscapes, which will ensure the productivity of farmland. The most important elements of the ecological framework of forest-steppe and especially steppe landscapes are forest belts, for the creation of which it is necessary to use elements of a water-erosion network, tree species that form a zonal type of vegetation. Creating a system of protective forest plantations in combination with ponds and terrace embankments can increase crop yields up to 25-50 centners per hectare. Landscape planning can serve as a tool for creating an ecological framework for a territory.


Sign in / Sign up

Export Citation Format

Share Document