Journal of forest and environmental science最新文献_第10页

Growth Analysis of Red Pine (Pinus densiflora) by Stem Analysis in the Eastern Region of Korea 韩国东部地区赤松(Pinus densiflora)生长的茎干分析

Journal of forest and environmental science Pub Date : 2015-02-28 DOI: 10.7747/JFES.2015.31.1.47

Y. Seo, Daesung Lee, Jungkee Choi

引用次数: 5

Composition and Structure of Himalayan Oak (Quercus leucotrichophora A. Camus) Forest under Various Degrees of Disturbance 不同程度干扰下喜玛拉雅山栎林的组成与结构

Journal of forest and environmental science Pub Date : 2015-02-28 DOI: 10.7747/JFES.2015.31.1.7

S. Prasad, P. Uniyal, D. S. Chauhan

{"title":"Composition and Structure of Himalayan Oak (Quercus leucotrichophora A. Camus) Forest under Various Degrees of Disturbance","authors":"S. Prasad, P. Uniyal, D. S. Chauhan","doi":"10.7747/JFES.2015.31.1.7","DOIUrl":"https://doi.org/10.7747/JFES.2015.31.1.7","url":null,"abstract":"Forest disturbance sometime considered as a tool of management as it believed that mid level disturbance constructs better micro-climatic conditions which ultimately boost up the plant diversity. The effect of different levels of disturbance on species composition and regeneration is very important. Present attempt was carried out in a temperate evergreen oak forest which was under various degree of disturbance. The study area is one of the large ranges of oak forest in Garhwal Himalaya and compensating various types of daily needs of local people. On the basis of IVI values Quercus leucotrichophora holds first position in all the disturbance zones whereas Myrica esculenta upgraded it’s rank in highly disturbed zone and showed less impacted species by disturbance. Berberis aristata and Eupatorium adenophorum in shrub layer and Anaphalis adnata and Bidens pilosa in herb layer were found as disturbance friendly species because they attained higher rank in highly disturbed zone whereas Caryopteris foetida was found disturbance-sensitive in shrub layer. The banj oak regenerated well under mid disturbance as compared to no and high degree of disturbance and a sharp downfall in the species diversity was recorded with increasing magnitude of disturbance. Density-diameter curves showed a reverse trend of lower density in higher girth classes. The results of the study should be useful for the forest management strategies.","PeriodicalId":237267,"journal":{"name":"Journal of forest and environmental science","volume":"52 60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124624195","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Status, Utilization and Economic Valuation of Non-timber Forest Products of Arunachal Pradesh, India 印度**非木材林产品现状、利用与经济评价

Journal of forest and environmental science Pub Date : 2015-02-28 DOI: 10.7747/JFES.2015.31.1.24

D. Sharma, B. Tiwari, Shashank Chaturvedi, Evamary Diengdoh

{"title":"Status, Utilization and Economic Valuation of Non-timber Forest Products of Arunachal Pradesh, India","authors":"D. Sharma, B. Tiwari, Shashank Chaturvedi, Evamary Diengdoh","doi":"10.7747/JFES.2015.31.1.24","DOIUrl":"https://doi.org/10.7747/JFES.2015.31.1.24","url":null,"abstract":"Abstract Non-timber forest products are important component of subsistence and livelihood of tribal communities living in and near forests. This is of particular significance in the state of Arunachal Pradesh having more than 80% of geographical area under forest cover and predominantly inhabited by tribal people. Purpose of this study was to document the status and utilization pattern and to assess the economic value of NTFPs of the state. Present study was carried out in eight districts of Arunachal Pradesh viz., Changlang, East Kameng, Lower Subansiri, Tawang, Tirap, Upper Siang, West Kameng and West Siang covering 34 villages and 350 households. Altogether, 135 plant based and 36 animal based non-timber forest products were recorded. Among plant based NTFPs, 54 species were collected for leaves, 30 for stem and 22 for fruits. Most of the animal based NTFPs (93%) were collected/hunted for food. Average 20∼40 kg of NTFPs was collected annually per household. Maximum plant based NTFP collection was recorded from West Siang followed by West Kameng and Tawang. Similarly, highest collection of animal based NTFPs was recorded from West Siang followed by Tirap and Lower Subansiri. NTFP contributed more than 50% of annual income of the people of East Kameng, Tirap, Lower Subansiri and Upper Siang districts. An illiterate and unemployed person with minimum agricultural land was more dependent on forests for his livelihood than a literate jobholder. The study concludes that a large section of people of Arunachal Pradesh are dependent on NTFPs for their livelihood however due to its unscientific harvesting, the availability of NTFPs is receding with time. There is an urgent need to promote cultivation and scientific harvesting of NTFPs in order to conserve the plant and animal diversity of this global biodiversity hotspot and for ensuring livelihood security of the people living in this area.Key Words: NTFPs, forests, tribal communities, livelihoods, economic valuation","PeriodicalId":237267,"journal":{"name":"Journal of forest and environmental science","volume":"132 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133481091","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 26

Description of One New and One Unrecorded Spiders (Arachnida: Araneae) from Korea 标题朝鲜蛛形纲:蛛形纲一种新蜘蛛和一种未记录蜘蛛的描述

Journal of forest and environmental science Pub Date : 2014-11-30 DOI: 10.7747/JFES.2014.30.4.378

S. Kim, J. Yoo, S. Lee, Joon-Ho Lee, Y. Choi, J. Lim

引用次数: 1

Impacts of Soil Microbial Populations on Soil Chemical and Biological Properties under Tropical Dry Evergreen Forest, Coromandel Coast, India 印度科罗曼德尔海岸热带干常绿森林土壤微生物种群对土壤化学和生物特性的影响

Journal of forest and environmental science Pub Date : 2014-11-30 DOI: 10.7747/JFES.2014.30.4.370

M. Sudhakaran, D. Ramamoorthy, B. Swamynathan, J. Ramya

引用次数: 2

Allometric Modeling for Leaf Area and Leaf Biomass Estimation of Swietenia mahagoni in the North-eastern Region of Bangladesh 孟加拉东北地区马沙藤叶面积和叶生物量估算的异速生长模型

Journal of forest and environmental science Pub Date : 2014-11-30 DOI: 10.7747/JFES.2014.30.4.351

Niamjit Das

{"title":"Allometric Modeling for Leaf Area and Leaf Biomass Estimation of Swietenia mahagoni in the North-eastern Region of Bangladesh","authors":"Niamjit Das","doi":"10.7747/JFES.2014.30.4.351","DOIUrl":"https://doi.org/10.7747/JFES.2014.30.4.351","url":null,"abstract":"Leaf area (A0) and leaf biomass (M0) estimation are significant prerequisites to studying tree physiological processes and modeling in the forest ecosystem. The objective of this study was to develop allometric models for estimating A0 and M0 of Swietenia mahagoni L. from different tree parameters such as DBH and tree height of mahogany plantations in the northeastern region of Bangladesh. A total of 850 healthy and well formed trees were selected randomly for sampling in the five study sites. Then, twenty two models were developed based on different statistical criteria that propose reliable and accurate models for estimating the A0 and M0 using non-destructive measurements. The results exposed that model iv and xv were selected on a single predictor of DBH and showed more statistically accuracy than other models. The selected models were also validated with an additional test data set on the basis of linear regression and t-test for mean difference between observed and predicted values. After that, a comparison between the best logarithmic and non-linear allometric model shows that the non-linear model produces systematic biases and underestimates A0 and M0 for larger trees. As a result, it showed that the bias-corrected logarithmic model iv and xv can be used to help quantify forest structure and functions, particularly valuable in future research for estimating A0 and M0 of S. mahagoni in this region.","PeriodicalId":237267,"journal":{"name":"Journal of forest and environmental science","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133320302","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Fuel Properties of Woody Pellets in Domestic Markets of Korea 韩国国内市场木质颗粒燃料性能研究

Journal of forest and environmental science Pub Date : 2014-11-30 DOI: 10.7747/JFES.2014.30.4.362

Jae-Heun Oh, Jin-Sung Hwang, Dusong Cha

引用次数: 6

Local Knowledge on Trees Utilization and Their Existing Threats in Rashad District of Nuba Mountains, Sudan 苏丹努巴山区拉沙德地区树木利用的当地知识及其存在的威胁

Journal of forest and environmental science Pub Date : 2014-11-30 DOI: 10.7747/JFES.2014.30.4.342

Y. Adam

{"title":"Local Knowledge on Trees Utilization and Their Existing Threats in Rashad District of Nuba Mountains, Sudan","authors":"Y. Adam","doi":"10.7747/JFES.2014.30.4.342","DOIUrl":"https://doi.org/10.7747/JFES.2014.30.4.342","url":null,"abstract":"Rural people of Sudan are endowed with a deep knowledge concerning the utilization of different tree species. However research on the local knowledge related to tree species utilization still lacks adequate attention. The study objectives were to identify the existing local knowledge related to the utilization of the tree species and the existing threats to the availability of the trees. A total of 300 respondents were selected randomly from Rashad district in Nuba Mountains in 2011. Semi-structured interview, direct observation, group discussion, preference ranking and direct matrix ranking were used to collect the data. The study results revealed that people of Nuba Mountains utilize different tree species for food, medicinal purposes, fodder, firewood, construction and cultural ceremonies. The study results also indicated that the availability of trees is negatively influenced by firewood collection, agricultural expansion, drought, overgrazing and charcoal production. The study concluded that local knowledge has crucial role in tree species utilization in Nuba Mountains. Further researches to document and substantiate the local knowledge on useful tree species are highly recommended.","PeriodicalId":237267,"journal":{"name":"Journal of forest and environmental science","volume":"111 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117177178","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Development of Site Index Equation and Curves for Site Quality Assessment of Pinus caribea Monoculture Plantations in Southwestern Nigeria 尼日利亚西南部加勒比松林立地质量评价立地指数方程和曲线的建立

Journal of forest and environmental science Pub Date : 2014-11-30 DOI: 10.7747/JFES.2014.30.4.315

B. Oyebade, J. Sunday, A. Osho, P. O. Adesoye

{"title":"Development of Site Index Equation and Curves for Site Quality Assessment of Pinus caribea Monoculture Plantations in Southwestern Nigeria","authors":"B. Oyebade, J. Sunday, A. Osho, P. O. Adesoye","doi":"10.7747/JFES.2014.30.4.315","DOIUrl":"https://doi.org/10.7747/JFES.2014.30.4.315","url":null,"abstract":"Abstract Forest timber production potential of any site is oftentimes measured quantitatively by site index, which is defined as dominant height of a particular stand at a specified age. A site index was developed for estimating site quality of monoculture Pinus caribaea plantations in southwestern Nigeria using a base age of 25 years. Dominant height data were collected from 60 Temporary Sample Plots (TSPs) of 20x20 m in plantations of 15 to 37 years. Linear and non-linear models as been widely applied in quantitative forest measurements were fitted to dominant height- age data and the best site index equation is : SI=Exp (InHd-23.495 (A -0.04) . The site index curves constructed for the three sites (Omo Forest Reserve - OFR (J4), Oluwa Forest Reserve - OLFR and Shasha Forest Reserve - SFR) across the southwestern Nigeria using the chosen equation revealed that a 15 year old Pinus caribaea in the study area attained average dominant heights of 25, 22 and 21 m in OFR (J4), OLFR and SFR respectively. The site index equation and curves proffer veritable insight into better silvicultural options and management practices for the future plantations suitable sites. Key Words: site quality, dominant height, index age, Pinus caribaea, timber production potential","PeriodicalId":237267,"journal":{"name":"Journal of forest and environmental science","volume":"3 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120987346","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Recovery and Disaster Prevention Capability of Coastal Japanese Black Pine (Pinus thunbergii) Forests on the Fukiage Sand Dunes of Southern Kyushu, Japan 日本九州南部福基奇沙丘上沿海日本黑松林的恢复与防灾能力

Journal of forest and environmental science Pub Date : 2014-11-30 DOI: 10.7747/JFES.2014.30.4.383

Y. Teramoto, E. Shimokawa, T. Ezaki, K. Chun, S. Kim, Youn-Tae Lee

引用次数: 0