scholarly journals Wood Loss Assessment in Forest of Sal (Shorea robusta) by Heart Rot of Central Terai of Nepal

2021 ◽  
Vol 2021 ◽  
pp. 1-8
Author(s):  
Shankar Tripathi ◽  
Yojana Adhikari
Keyword(s):  
Logistic Regression ◽  
Forest Management ◽  
Calculation Formula ◽  
Community Forest ◽  
Loss Assessment ◽  
Volume Calculation ◽  
Tree Diameter ◽  
Total Height ◽  
Shorea Robusta ◽  
Management Modality

A significant volume of wood was lost due to wood defects; however, few studies were done to quantify wood loss by wood defects. This study was focused on quantifying wood loss by heart rot, especially hollowness in Shorea robusta. The study was conducted in Tileswornath community forest of Rautahat district. The data were collected from the felling site of the regeneration felling block of Tileswornath community forest. 44 trees were selected randomly, and tree diameter, total height, and volume were measured. The destructive method was followed as heart rot cannot be visible from the surface. Felled trees were sanctioned into 285 logs and separated based on the hollowness. Hollow diameters at both thin end and mid and thick end, as well as length, were measured on the hollow log, and Smalian’s formula was used to calculate the volume of hollowed portion, and volume calculation formula for the cylinder was used to calculate total volume. For the solid logs, mid diameter and length of the log were measured and volume calculation formula for the cylinder was used to calculate total volume. Logistic regression was performed to identify the relation of total height and diameter with the probability of hollowness presence. The study showed that 59% of sampled trees and 34.39% of logs were found to be hollowed due to heart rot. 41.79% volume was occupied by hollow on the hollowed log. Logistic regression discards the relation of height to the hollowness but signified the relation of diameter to the probability of hollowness presence. Before implementation of scientific forest management modality, the timber retained in stump per tree was found as 0.18 cubic feet.

scholarly journals Assessment of Productivity and Profitability through Scientific Forest Management in Sal (Shorea robusta) Forest of Nepal: A Case Study from Patela Community Forest, Kailali District, Nepal

2020 ◽  
Vol 17 ◽  
pp. 23-41
Author(s):  
Pabitra Gotame ◽  
Yam Bahadur K.C. ◽  
Nripesh Awasthi
Keyword(s):  
Forest Management ◽  
Rotation Period ◽  
Forest Products ◽  
Fiscal Year ◽  
Natural Forests ◽  
Community Forest ◽  
Net Benefit ◽  
Shorea Robusta ◽  
Negative Effect

Scientific forest management (SciFM) ensures improved productivity and healthy forests that are crucial for the economic development and prosperity of forest-dependent country like Nepal. This study analyzes the effects of the silvicultural intervention on the regeneration of Sal (Shorea robusta), plant species diversity, and income through the flow of forest products in the Patela Community Forest in Kailali District of Nepal, where Sal (S. robusta) forest has been managed under an Irregular Shelterwood System with 80 years of the rotation period since fiscal year 2017/18. The vegetation sampling was done by the quadrat method based on the principle of stratified random sampling from the managed and unmanaged parts of the forest. The climate based site productivity was analyzed. The profitability of scientific forest management was analyzed by income and cost incurred in managing the forest. The study revealed the promising regeneration of S. robusta in the managed areas compared to the unmanaged area. The silvicultural intervention had a significant negative effect on plant diversity showing an increase in the concentration of dominance of S. robusta. An implementation of SciFM plan generated a total net benefit of 187,000 US$ in the last 2017/18, and 2018/19 fiscal years. This study recommends existing natural forests to be managed based on sound silvicultural principles to improve the degrading nature of the productive forest that can generate revenue for the country and opportunity for community development.

scholarly journals Non-timber forest product utilization under community forest management in northern Thailand

2020 ◽  
pp. 1-15
Author(s):  
Siriluck Thammanu ◽  
Hee Han ◽  
Dokrak Marod ◽  
Liangzhen Zang ◽  
Yoonkoo Jung ◽  
...  
Keyword(s):  
Forest Management ◽  
Forest Product ◽  
Community Forest Management ◽  
Community Forest ◽  
Northern Thailand

scholarly journals Participatory assessment of biodiversity conservation in community forestry in Nepal

1970 ◽  
Vol 16 (1) ◽  
pp. 46-56 ◽  
Author(s):  
K.P. Acharya ◽  
K.R. Goutam ◽  
B.K. Acharya ◽  
G. Gautam
Keyword(s):  
Forest Management ◽  
Biodiversity Conservation ◽  
Community Forestry ◽  
Effective Means ◽  
Rural Livelihoods ◽  
Community Forest Management ◽  
Managed Forests ◽  
Community Forest ◽  
Participatory Assessment ◽  
Community Forest User Groups

The Community Forestry has been the most effective means of managing common forest resources in Nepal. Besides rehabilitating degraded hills, improving environment and contributing to the rural livelihoods, community forestry is claimed to be a major means of biodiversity conservation. It is also argued that the prevalent approach of community forest management threats to the conservation of biodiversity. This paper is based on the findings from two community forest user groups from Central Nepal and argues that the users’ innovative practices of active forest management favor biodiversity conservation. The study has documented users’ innovations to conserve biodiversity in community managed forests. Key words: Nepal, community forestry, biodiversity conservation and livelihoods Banko Janakari Vol.16(1) 2006 pp46-56

Guidelines for choosing volume equations in the presence of measurement error in height

2000 ◽  
Vol 30 (2) ◽  
pp. 306-310 ◽  
Author(s):  
M S Williams ◽  
H T Schreuder
Keyword(s):  
Measurement Error ◽  
Tree Species ◽  
Measurement Errors ◽  
Tree Diameter ◽  
Total Height ◽  
Volume Equations

Assuming volume equations with multiplicative errors, we derive simple conditions for determining when measurement error in total height is large enough that only using tree diameter, rather than both diameter and height, is more reliable for predicting tree volumes. Based on data for different tree species of excurrent form, we conclude that measurement errors up to ±40% of the true height can be tolerated before inclusion of estimated height in volume prediction is no longer warranted.

Sustainable Community Forest Management in Mexico: An Integrated Model of Three Socio-ecological Frameworks

2021 ◽  
Author(s):  
Gabriela De la Mora de la Mora ◽  
Laura Oliva Sánchez-Nupan ◽  
Balam Castro-Torres ◽  
Leopoldo Galicia
Keyword(s):  
Forest Management ◽  
Integrated Model ◽  
Community Forest Management ◽  
Community Forest ◽  
Sustainable Community
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