scholarly journals POTENSI PERMUDAAN SEMAI PADA HUTAN YANG DIKELOLA DENGAN SISTEM SILVIKULTUR TPTJ DI KALIMANTAN TENGAH Entitled Potential for Nature Seedling Regeneration in The Forest that Managed by Silviculture System of TPTJ in Central Kalimantan

2019 ◽  
Vol 9 (2) ◽  
pp. 127-133
Author(s):  
Prijanto Pamoengkas ◽  
Ahmad Iyyannanda Fatir Assifa
Keyword(s):  
Forest Management ◽  
Diversity Index ◽  
Recovery Process ◽  
Vegetation Recovery ◽  
Seedling Regeneration ◽  
Management Activity ◽  
Selective Cutting ◽  
Central Kalimantan ◽  
The Family ◽  
Is Value

Forest management activity wich applied selective cutting with line planting (TPTJ) caused disturbed on forest, especially due to the process of making the planting lines. Natural forest gives respond to disturbance by recovery of its vegetation. This research aimed to measure the potential seedlings by vegetation recovery process in logged over area and determine both of the diversity and evenness of communities. The result showed that the composition of the seedlings at the begining of a recovery in the cropping were not only pioneer, but also kinds of Dipterocarpaceae and non-Dipterocarpaceae. The entire lines is dominated by the pioneers types, such as: Macaranga gigantea, Ganua glaberrima, Aporosa apriniana and Polyalthia rumphii. The family with the most number of types found namely: Phyllanthaceae, Myrtaceae and Dipterocarpaceae. The value of diversity index all of community belongs to moderate ( 2 < H’ < 3) and value equity (e’) belongs to high. The entire community of between the lines have low IS value wich its IS < 50% that means tampering with the seedling in each line has a significant different due to the forest examined was divided into several blocks of high fells.Keywords : climax, diversity, equity, pioneer, selective cutting with line planting

scholarly journals KOMPOSISI FUNCTIONAL SPECIES GROUP PADA SISTEM SILVIKULTUR TEBANG PILIH TANAM JALUR DI AREA IUPHHK-HA PT. SARPATIM, KALIMANTAN TENGAH Composition of Functional Species Group at Silviculture System of Tebang Pilih Tanam Jalur in IUPHHK-HA Area

2018 ◽  
Vol 8 (3) ◽  
pp. 160-169
Author(s):  
Prijanto Pamoengkas ◽  
Ayi Kulsum Zamzam
Keyword(s):  
Forest Management ◽  
Forest Structure ◽  
Production System ◽  
Natural Regeneration ◽  
Stand Structure ◽  
Ecosystem Processes ◽  
Species Group ◽  
Vegetation Recovery ◽  
Central Kalimantan

Forest management can have an impact on changes in forest structure and composition of plant species. Functional species Group (FSG) may explain the unity of the trees species that are selected in a group in a forest management activities so that it can help in explaining the characteristic of biodiversity such as the quality of habitat and ecosystem processes. The purpose of this research is to know the composition of forest vegetation that the production system are managed with a Silviculture system of TPTJ as seen from the forest structure and composition of the type that belongs to FSG for the stands and natural regeneration in log over area (LOA) and KPPN (The Conservation of Germplasm Area) IUPHHK-HA PT. Sarmiento Parakantja Timber (Sarpatim), Central Kalimantan. Analysis of the composition of the stands type and structure used terraced path in the area of TPTJ and KPPN. The results showed that the types of climax on an entire swath of observations, generally have greater proportion than the group of pioneers, the number of the climax type is 100 while pioneer type is 59. The structure of the stands form a J reverse curve, it show that the composition of vegetation recovery on log over areas managed by using TPTJ and KPPN Silviculture system has balance characteristic of uneven age forest. The value of diversity is high (H'>3). Most of tree and stands community have different communities (ID>50%).Key words: LOA, FSG, TPTJ, stand structure, composition of species

scholarly journals Niche construction mediates climate effects on recovery of tundra heathlands after extreme event

PLoS ONE ◽  
2021 ◽  
Vol 16 (2) ◽  
pp. e0245929
Author(s):  
Victoria T. González ◽  
Bente Lindgård ◽  
Rigmor Reiersen ◽  
Snorre B. Hagen ◽  
Kari Anne Bråthen
Keyword(s):  
Extreme Events ◽  
Niche Construction ◽  
Extreme Event ◽  
Recovery Process ◽  
Vegetation Recovery ◽  
Allelopathic Effect ◽  
Climatic Gradient ◽  
Soil Environment ◽  
Ecosystem Recovery ◽  
Continental Climate

Climate change is expected to increase the frequency and intensity of extreme events in northern ecosystems. The outcome of these events across the landscape, might be mediated by species effects, such as niche construction, with likely consequences on vegetation resilience. To test this hypothesis, we simulated an extreme event by removing aboveground vegetation in tundra heathlands dominated by the allelopathic dwarf shrub Empetrum nigrum, a strong niche constructor. We tested the hypothesis under different climate regimes along a 200-km long gradient from oceanic to continental climate in Northern Norway. We studied the vegetation recovery process over ten years along the climatic gradient. The recovery of E. nigrum and subordinate species was low and flattened out after five years at all locations along the climatic gradient, causing low vegetation cover at the end of the study in extreme event plots. Natural seed recruitment was low at all sites, however, the addition of seeds from faster growing species did not promote vegetation recovery. A soil bioassay from 8 years after the vegetation was removed, suggested the allelopathic effect of E. nigrum was still present in the soil environment. Our results provide evidence of how a common niche constructor species can dramatically affect ecosystem recovery along a climatic gradient after extreme events in habitats where it is dominant. By its extremely slow regrowth and it preventing establishment of faster growing species, this study increases our knowledge on the possible outcomes when extreme events harm niche constructors in the tundra.

scholarly journals Đa dạng tài nguyên cây làm thuốc tại khu bảo tồn thiên nhiên Na Hang, tỉnh Tuyên Quang

2021 ◽  
Vol 3 (6) ◽  
pp. 44-49
Author(s):  
Thị Hải Nguyễn ◽  
Huy Thái Trần ◽  
Thế Cường Nguyễn ◽  
Thị Thanh Vân Trần
Keyword(s):  
Medicinal Plants ◽  
Medicinal Plant ◽  
Nature Reserve ◽  
Diversity Index ◽  
Iucn Red List ◽  
Red List ◽  
Rare And Endangered Species ◽  
The Family ◽  
Rare And Endangered ◽  
Data Book

In Na Hang Nature Reserve there was identified 647 medicinal plant species belonging to 137 families, 4 vascular divisions: Lycopodiophyta with 3 species, 2 families; Polypodiophyta with20 species, 12 families; Pinophyta with 6 species, 4 families; Magnoliophyta with 618 species, 119 families. Concerning the diversity index: the family index: 4.72; the genus index: 1.49; the genus index/the family index: 3.16. In Na Hang Nature Rserve 10 families more species occupying 7.30% of the total families of medicinal plants with the total of species occupying 31.68% and 28.64% of the total of genus. The family more diverse is Asteraceae with 32 species, occupying 4.95% of the total of medicinal plants identified; following is Rubiaceae with 28 species (4.33%), Euphorbiaceae with 26 species (4.02%); Moraceae with 23 species (3.55%); Cucurbitaceae, Verbenaceae with the same number of species 18 (2.78%); Araceae with 17 species (2.63%); Zingiberaceae with 16 species (2.47%); Urticaceae with 15 species (2.32%); and the last are families Poaceae of species 12 (1.85%) in the total of species. 10 genera more diverse with 59 species (9.12% of the total of medicinal plants), Ficus (Moraceae) is more diverse with 15 species (2.32% of the total of medicinal plants) and another genera with from 4 to 7 species. In Nature Reserve of Na Hang we have confirmed the distribution of 30 precious and rare and endangered species priorto the conservation: 23 species in Vietnam Red Data Book (2007): VU - 16 species, EN - 07 species; 17 species in Red List of medicinal plant of Vietnam (2006):VU - 10 species, EN - 6 species and CR – 01 species; 07 species in IUCN Red List (2014): LR - 06 species and VU – 01 species.

scholarly journals Rethinking entrepreneurship and family business research in Honduras: a closer look in times of crisis

2020 ◽  
Vol 9 (1) ◽  
pp. 28-38
Author(s):  
Allan Discua
Keyword(s):  
Entrepreneurial Activity ◽  
Business Research ◽  
Family Enterprise ◽  
Large Size ◽  
Family Enterprises ◽  
The Social ◽  
The Family ◽  
The World ◽  
Relevant Context ◽  
Is Value

Introduction: Around the world, entrepreneurial activity is influenced by family. The influence of family in the creation, management, development and continuity of small, medium and large size enterprises is unequivocal. In this revision article, I argue for the relevance of further research in Honduras around entrepreneurship and the family enterprise. Methods and Discussion: As families in business are vital to the social and economic fabric of communities around the world there is value in understanding the special nature of enterprises that operate as family businesses. Honduras is a relevant context of study as research on family enterprises has been underrepresented and several challenges and fortuitous events affect the emergence and continuity of family enterprises. Conclusion: To advance understanding, this revision article brings together a collection of themes that provide a nuanced overview of key discussions and opportunities for further research.

scholarly journals SPIRIT MITSAQAN GHALIDZA DALAM PERNIKAHAN SEBAGAI PENGUAT KELUARGA DI KALIMANTAN TENGAH

2020 ◽  
Vol 4 (01) ◽  
pp. 74-91
Author(s):  
Khabib Musthofa ◽  
Subiono Subiono
Keyword(s):  
Hooking Up ◽  
Central Kalimantan ◽  
Literature Research ◽  
Existing Problems ◽  
The Family ◽  
The Impact

This article tries to describe the opaque facts of divorce in Central Kalimantan. Because divorce is a life disaster, because the impact will be many ranging from children who become victims, family breakdowns, to the economy. This type of article is literature research with retrospective methods or looking at existing problems and then looking for solutions. Namely through the values of mitsaqan ghaliza, the results of this writing include the values of mitsaqan ghaliza teaching sincerity, full of commitment in building a family, because marriage is a sacred bond containing divine commitment not only with a partner but also involving Allah SWT. Then, one of the bright promises when there is a marriage is Muasyarah Bilma'ruf or hooking up well. These values will become the initial foundation for strengthening the family.

scholarly journals Remote Sensing of Wildfire Using a Small Unmanned Aerial System: Post-Fire Mapping, Vegetation Recovery and Damage Analysis in Grand Bay, Mississippi/Alabama, USA

Drones ◽  
2019 ◽  
Vol 3 (2) ◽  
pp. 43 ◽  
Author(s):  
Sathishkumar Samiappan ◽  
Lee Hathcock ◽  
Gray Turnage ◽  
Cary McCraine ◽  
Jonathan Pitchford ◽  
...  
Keyword(s):  
Vegetation Index ◽  
Normalized Difference Vegetation Index ◽  
Cost Effective ◽  
Recovery Process ◽  
Turnaround Time ◽  
Coastal Marsh ◽  
Vegetation Recovery ◽  
Burned Area ◽  
Surface Model ◽  
Unmanned Aerial System

Wildfires can be beneficial for native vegetation. However, wildfires can impact property values, human safety, and ecosystem function. Resource managers require safe, easy to use, timely, and cost-effective methods for quantifying wildfire damage and regeneration. In this work, we demonstrate an approach using an unmanned aerial system (UAS) equipped with a MicaSense RedEdge multispectral sensor to classify and estimate wildfire damage in a coastal marsh. We collected approximately 7.2 km2 of five-band multispectral imagery after a wildfire event in February 2016, which was used to create a photogrammetry-based digital surface model (DSM) and orthomosaic for object-based classification analysis. Airborne light detection and ranging data were used to validate the accuracy of the DSM. Four-band airborne imagery from pre- and post-fire were used to estimate pre-fire health, post-fire damage, and track the vegetation recovery process. Immediate and long-term post-fire classifications, area, and volume of burned regions were produced to track the revegetation progress. The UAS-based classification produced from normalized difference vegetation index and DSM was compared to the Landsat-based Burned Area Reflectance Classification. Experimental results show the potential of using UAS and the presented approach compared to satellite-based mapping in terms of classification accuracies, turnaround time, and spatial and temporal resolutions.

scholarly journals Diversitas Serangga Hutan Tanah Gambut Di Palangkaraya Kalimantan Tengah

2019 ◽  
Vol 6 (2) ◽  
pp. 156
Author(s):  
Julian Tambunan ◽  
I Ketut Ginantra ◽  
Ni Luh Watiniasih
Keyword(s):  
Plant Species ◽  
Similarity Index ◽  
Pitfall Traps ◽  
Light Traps ◽  
Central Kalimantan ◽  
Plant Samples ◽  
The Family ◽  
Number Of Plant Species ◽  
Burned Forest

This study aims to determine the diversity of insects and plants used as a habitat in unburned and previously burned peat land forests in Palangkaraya, Central Kalimantan. Insects were collected by beating the branches of plants, aerial sweeping, pitfall traps and light traps. Plants were identified in situ or plant samples were collected and identified later in the Lab. The diversity of insects were compared between unburned and previously burned peat forests by analyzing its index diversity (H’) and index of similarity (IS). In total, the insects collected from unburned peat forest were 551 individual, belongs to 12 order and 51 families, and 431 individual insects were collected from previously burned peat forest which belongs to 10 order and 38 families. The family of insects that most frequently found at both areas was Formicidae (Hymenoptera). The insects diversity of both forests were still high, that is H' = 3,45 of unburned peat forest and H '= 3,11 of previously burned peat forest, with the similarity index IS > 50% of both peat forests. The number of plant species found was higher in unburned peat forest (38 species) than in previously burned peat forest (9 species).  The previously burned forest was dominated by Acacia plants, while in unburned peat forest the plants seem to evenly spread.

scholarly journals Towards a Characterization of Working Forest Conservation Easements in Georgia, USA

Forests ◽  
2020 ◽  
Vol 11 (6) ◽  
pp. 635 ◽  
Author(s):  
Tyler Reeves ◽  
Bin Mei ◽  
Jacek Siry ◽  
Pete Bettinger ◽  
Susana Ferreira
Keyword(s):  
Land Use ◽  
Forest Management ◽  
Forest Conservation ◽  
Natural Habitat ◽  
Bottomland Hardwoods ◽  
Conservation Easements ◽  
Management Activity ◽  
Land Use Types ◽  
Conservation Values ◽  
Food Plots

We examine the attributes of working forest conservation easements in Georgia. Easement contracts and baseline reports are inspected to investigate easement themes, land use types, recreation opportunities, hydrological features, and forest management activity. Easement themes are heavily weighted towards themes of protecting natural habitat and preserving the conservation values of properties. Predominant land use types include wildlife food plots, bottomland hardwoods, and planted pine stands. Common hydrological features found were small creeks/streams and ponds. Lastly, forest management was characterized as having small amounts of restrictions present, with forest management being largely similar to other unencumbered property in the southeastern USA. This information can be used as a reference for landowners interested in establishing a working forest conservation easement (WFCE) on their property as well as a tool for comparison for researchers investigating easement characteristics in other regions.

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