Journal of Sustainable Forestry最新文献_第9页

Stand Characteristics and Perceptions of Local Communities on the Management of Pistachio (Pistacia vera L.) Forests in an Unstable Region of Afghanistan 阿富汗不稳定地区的林分特征和当地社区对开心果森林管理的认识

IF 1.6 4区农林科学

Journal of Sustainable Forestry Pub Date : 2021-09-10 DOI: 10.1080/10549811.2021.1978097

Mohammad Bashir Mahmoodi, Mohammad Nasir Shalizi, J. Groninger, K. Akamani, Safiullah Khurram

{"title":"Stand Characteristics and Perceptions of Local Communities on the Management of Pistachio (Pistacia vera L.) Forests in an Unstable Region of Afghanistan","authors":"Mohammad Bashir Mahmoodi, Mohammad Nasir Shalizi, J. Groninger, K. Akamani, Safiullah Khurram","doi":"10.1080/10549811.2021.1978097","DOIUrl":"https://doi.org/10.1080/10549811.2021.1978097","url":null,"abstract":"ABSTRACT Pistachio (Pistacia vera L.) forests support livelihoods in communities within Afghanistan’s Pistachio Belt, a region characterized by extreme poverty and chronic insecurity. In this study, we used ecological data, as well as survey data to characterize standing attributes and resource user perceptions about local pistachio forests and their management. The survey questionnaire was verbally administered to 507 household representatives in remote communities that were chosen from eight districts in northern and northwestern Afghanistan based on accessibility and their location within the Pistachio Belt. Stand density and tree form varied widely between sites and as a function of elevation. Partial harvesting for fuelwood collection was positively correlated with stand density. The survey data also showed that pistachio forests support a variety of livelihood activities among respondents and their households. However, suboptimal nut collection timing and use of damaging nut harvesting methods were widespread with little effort to accommodate natural regeneration. Forest users typically recognized the degraded condition of the pistachio forest and the negative impacts of grazing and fuelwood collection on forest density. Respondents also recognized the impacts of nut collection practices, fuelwood collection, and grazing on forest regeneration status. These results suggest that efforts to sustainably manage pistachio forests must recognize considerable variation within and between communities regarding forest physical condition, accustomed uses by associated communities, and existing or potential mechanisms regulating forest uses. All of these necessitate context-specific forest management planning. We discuss challenges inherent to collecting baseline data needed for planning multiple-use community-based natural resources management in highly insecure environments.","PeriodicalId":54313,"journal":{"name":"Journal of Sustainable Forestry","volume":"42 1","pages":"170 - 188"},"PeriodicalIF":1.6,"publicationDate":"2021-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46772565","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Relative Growth Rate and Biomass Allocation Among Some Important Commonly Planted Trees in an Irrigated Urban Landscape 灌溉城市景观中几种重要常栽树的相对生长率和生物量分配

IF 1.6 4区农林科学

Journal of Sustainable Forestry Pub Date : 2021-08-27 DOI: 10.1080/10549811.2021.1969251

Rida Ayub, Z. Siddiq, M. U. Hayyat, T. Iftikhar

{"title":"Relative Growth Rate and Biomass Allocation Among Some Important Commonly Planted Trees in an Irrigated Urban Landscape","authors":"Rida Ayub, Z. Siddiq, M. U. Hayyat, T. Iftikhar","doi":"10.1080/10549811.2021.1969251","DOIUrl":"https://doi.org/10.1080/10549811.2021.1969251","url":null,"abstract":"ABSTRACT The present study was conducted to estimate relative growth rates (RGR) and above- and below-ground biomass stocks of 10 tree species commonly planted in arid irrigated urban areas in Pakistan. Saplings were grown in the Botanic Garden of Government College University, Lahore. The growth was monitored for a year and a half and then trees were destructively harvested to assess biomass stocks. The mean relative growth rate ranged from 0.03 ± 0.021 cm cm−1 day−1 to 0.28 ± 0.016 cm cm−1 day−1. The mean above-ground oven dried biomass ranged from 0.51 ± 0.071 kg to 28.34 ± 3.746 kg, while the mean below-ground biomass ranged from 0.12 ± 0.053 kg to 7.35 ± 0.605 kg. Further, we found that the RGR was significantly and positively correlated with above-ground biomass, below-ground biomass, and root-shoot ratios. Across all 80 individuals of the studied species, diameter at tree base was significantly and positively related to whole tree biomass (R2 = 0.80). In this study we have developed the species-specific equations to estimate biomass in young urban species. Such data will be helpful for plantation decision makers, who may need to select the species according to relative growth rates and biomass allocation.","PeriodicalId":54313,"journal":{"name":"Journal of Sustainable Forestry","volume":"42 1","pages":"135 - 150"},"PeriodicalIF":1.6,"publicationDate":"2021-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42368766","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Diplodia Species Causing Dieback on Pinus Pinea: Relationship Between Disease Incidence, Dendrometric and Ecological Parameters 引起松木枯死的双倍体物种:发病率、树木学和生态参数的关系

IF 1.6 4区农林科学

Journal of Sustainable Forestry Pub Date : 2021-08-26 DOI: 10.1080/10549811.2021.1944879

S. Hlaiem, Islem Yangui, G. Della Rocca, S. Barberini, R. Danti, M. L. Ben Jamâa

{"title":"Diplodia Species Causing Dieback on Pinus Pinea: Relationship Between Disease Incidence, Dendrometric and Ecological Parameters","authors":"S. Hlaiem, Islem Yangui, G. Della Rocca, S. Barberini, R. Danti, M. L. Ben Jamâa","doi":"10.1080/10549811.2021.1944879","DOIUrl":"https://doi.org/10.1080/10549811.2021.1944879","url":null,"abstract":"ABSTRACT Forest decline is a widespread phenomenon on coasts throughout the Mediterranean basin. Pathogenic fungi are amongst the main causes of forest tree diseases. Diplodia species, having a cosmopolitan distribution, are well-known as pathogens of woody plant hosts including Pinus spp. In recent years, symptoms of shoot dieback, necrosis, twig blight, canopy transparency and trunk cankers have been observed on Pinus pinea trees in Tunisian forests. Nevertheless, this has been less well-studied in North Africa and especially in Tunisia. The purpose of this study is to report the occurrence of Diplodia species causing dieback on P. pinea in two forests in northeastern and the northern Tunisia. A collection of fifty-eight isolates were obtained from symptomatic branches of P. pinea trees. Three Diplodia species were identified: D. africana, D. pseudoseriata and D. scrobiculata by means of morphological characteristics, and phylogenetic analysis. Their incidence on P. pinea trees appeared to be significantly correlated to the dendrometric parameters and ecological factors. A pathogenicity test was conducted on 3-years-old P. pinea seedlings, confirmed the virulence of three Diplodia species. Based on the length of vascular necrosis in the wood of the P. pinea inoculated stem, D. scrobiculata was the most virulent species. Data from the present study provide the first report of the species of Diplodia associated with P. pinea dieback in Tunisia.","PeriodicalId":54313,"journal":{"name":"Journal of Sustainable Forestry","volume":"42 1","pages":"59 - 76"},"PeriodicalIF":1.6,"publicationDate":"2021-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43611415","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Optimal Forest Management Using Stochastic Dynamic Programming Approach – A Case Study from the Hyrcanian Forests of Iran 利用随机动态规划方法进行森林优化管理——以伊朗海尔卡尼亚森林为例

IF 1.6 4区农林科学

Journal of Sustainable Forestry Pub Date : 2021-08-12 DOI: 10.1080/10549811.2021.1961277

S. Mohammadi Limaei, Z. Mohammadi

{"title":"Optimal Forest Management Using Stochastic Dynamic Programming Approach – A Case Study from the Hyrcanian Forests of Iran","authors":"S. Mohammadi Limaei, Z. Mohammadi","doi":"10.1080/10549811.2021.1961277","DOIUrl":"https://doi.org/10.1080/10549811.2021.1961277","url":null,"abstract":"ABSTRACT The aim of this study is to estimate the optimal forest harvest considering economic and environmental objectives in an uneven-aged forest in the north of Iran. Required data were collected such as stumpage price, harvesting variable costs, growth, volume, basal area, sequestrated carbon, carbon dioxide storage, and price. The required input models for optimization were estimated using the collected data. A stochastic dynamic programming technique was used for optimization. The results indicated that the harvesting volume was higher when only the economic objective was considered instead of considering economic and environmental objectives. The results also indicated that the harvesting volume would occur at a higher level of volume per hectare if we only consider the environmental objective. The results showed that the expected present value was higher when economic and environmental objectives were considered simultaneously. The results indicated when interest rate increased, the harvesting time and the expected present value decreased. The results showed that the expected present value increases with increasing the risk. The results of this study can be a guideline for optimal forest management.","PeriodicalId":54313,"journal":{"name":"Journal of Sustainable Forestry","volume":"42 1","pages":"120 - 134"},"PeriodicalIF":1.6,"publicationDate":"2021-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49261223","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Advances in forest transition theory research 森林转型理论研究进展

IF 1.6 4区农林科学

Journal of Sustainable Forestry Pub Date : 2021-08-12 DOI: 10.24294/sf.v4i2.1608

Lingchao Li, Jinlong Liu, Weina Sun, Baodong Cheng

引用次数: 0

Mexico’s Community Forest Enterprises: Success on the Commons and the Seeds of a Good Anthropocene 墨西哥社区森林企业:公地的成功和良好人类世的种子

IF 1.6 4区农林科学

Journal of Sustainable Forestry Pub Date : 2021-08-06 DOI: 10.1080/10549811.2021.1961278

Citlali Cortés Montaño, Enrique J. Jardel Peláez

引用次数: 7

Effect of Thinning Intensity on Litterfall Biomass and Nutrient Deposition in a Naturally Regenerated Pinus Pseudostrobus Lind. Forest in Oaxaca, Mexico 间伐强度对天然再生松落叶层生物量和养分沉积的影响。墨西哥瓦哈卡州的森林

IF 1.6 4区农林科学

Journal of Sustainable Forestry Pub Date : 2021-07-26 DOI: 10.1080/10549811.2021.1946410

Yazmin Pérez-Alavez, G. Rodríguez-Ortiz, Wenceslao Santiago-García, Gisela Virginia Campos-Ángeles, J. R. Enríquez-del Valle, Meredith P. Martin

{"title":"Effect of Thinning Intensity on Litterfall Biomass and Nutrient Deposition in a Naturally Regenerated Pinus Pseudostrobus Lind. Forest in Oaxaca, Mexico","authors":"Yazmin Pérez-Alavez, G. Rodríguez-Ortiz, Wenceslao Santiago-García, Gisela Virginia Campos-Ángeles, J. R. Enríquez-del Valle, Meredith P. Martin","doi":"10.1080/10549811.2021.1946410","DOIUrl":"https://doi.org/10.1080/10549811.2021.1946410","url":null,"abstract":"ABSTRACT Litterfall is an important component of forest biomass and nutrient cycling, and can have key impacts on soil fertility through its decomposition. However, the effect of forest management on litterfall remains unclear. We evaluate the impact of thinning intensity on the biomass and nutrient content (C and N) of litterfall in Pinus pseudostrobus forest in Oaxaca, México, across two thinning intensities in areas with either high or low residual basal area and across seasons. There was significantly higher litter carbon content in the least intensive thinning treatment, but no significant differences in biomass or nitrogen content between treatments. However, there was a significant correlation between residual basal area and litter biomass at the p < .1 level. We found a clear seasonal pattern in litterfall fluxes, with 1.5 times more litter deposition in autumn’s dry season compared to spring. We find that the thinned stand of P. pseudostrobus generated an annual mean litter biomass of 1059.27 ± 346.04 kg ha−1 with mean carbon content of 125.31 ± 46.43 kg ha−1 and mean nitrogen content of 4.76 ± 1.43 kg ha−1. These values present an important contribution for modeling of biomass and nutrient cycling in this ecologically and economically important forest type.","PeriodicalId":54313,"journal":{"name":"Journal of Sustainable Forestry","volume":"42 1","pages":"77 - 94"},"PeriodicalIF":1.6,"publicationDate":"2021-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/10549811.2021.1946410","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43962101","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Climatic Variables Differentially Influence Neotropical Plant Species of Conservation Concern 气候变量对保护关注的新热带植物物种的不同影响

IF 1.6 4区农林科学

Journal of Sustainable Forestry Pub Date : 2021-07-25 DOI: 10.1080/10549811.2021.1944878

P. Antúnez, C. Wehenkel, Collins B. Kukunda, J. Hernández-Díaz

{"title":"Climatic Variables Differentially Influence Neotropical Plant Species of Conservation Concern","authors":"P. Antúnez, C. Wehenkel, Collins B. Kukunda, J. Hernández-Díaz","doi":"10.1080/10549811.2021.1944878","DOIUrl":"https://doi.org/10.1080/10549811.2021.1944878","url":null,"abstract":"ABSTRACT Knowing how and to what extent environmental parameters affect threatened species facilitates the understanding of their specific microhabitat requirements. In this study, we examined the response patterns of four threatened tropical plant species to variations in temperature, precipitation, and physiographic variables, and analyzed the relative contributions of environmental variables to the observed distributions of the species. The studied species are Bursera coyucensis, Cryosophila argentea, Guatteria anomala, and Vatairea lundellii and are cataloged into specific risk categories in the Mexican Official Standard NOM-059-SEMARNAT. Our findings suggest differences in ranges of temperature and precipitation (for example, C. argentea exhibited narrower ranges compared to G. anomala and V. lundellii in precipitation) and similarity in ranges of slope across species distributions. We also found that most species distributions respond non-linearly to variations in environmental variables. These results contribute to defining the environmental spaces of these species. The partial and combined effects of climatic variables, and the range of environmental distributions reported here, have intrinsic implications for the adaptation capacity, plasticity, and survival of these species to environmental variation. This information could be useful to promote conservation activities such as the creation of microhabitats with optimal environmental preferences through sustainable silviculture.","PeriodicalId":54313,"journal":{"name":"Journal of Sustainable Forestry","volume":"42 1","pages":"43 - 58"},"PeriodicalIF":1.6,"publicationDate":"2021-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/10549811.2021.1944878","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42058513","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Predicting the Future of Protected Areas in the Region of the Highest Population Density in Sub-Saharan Africa 预测撒哈拉以南非洲人口密度最高地区保护区的未来

IF 1.6 4区农林科学

Journal of Sustainable Forestry Pub Date : 2021-07-15 DOI: 10.1080/10549811.2021.1933538

Olivier Clement Gatwaza, Xiangrong Wang

{"title":"Predicting the Future of Protected Areas in the Region of the Highest Population Density in Sub-Saharan Africa","authors":"Olivier Clement Gatwaza, Xiangrong Wang","doi":"10.1080/10549811.2021.1933538","DOIUrl":"https://doi.org/10.1080/10549811.2021.1933538","url":null,"abstract":"ABSTRACT The landscape surrounding protected areas (PAs) plays a big role in supporting the achievement of conservation goals. This paper examines demographic dynamics in the vicinity of Akagera National Park (ANP) both in time and space, considers its implication on land-use/land-cover (LULC) change of one of its neighboring districts, and involves the existing environmental planning policies to anticipate the fate of the ANP. Data retrieved from Rwanda Land Management and Use Authority (RLMUA) and from the National Institute of Statistics of Rwanda (NISR) were reinforced with field observation and Global Positioning System (GPS) measurements taken within Gatsibo district where the study was conducted and injected into a Geographic Information System (GIS) for mapping and analysis. Findings revealed that in the next 50 years, the increasing human settlement and associated social-economic needs will erase any remnant wildlife hotspots in the ‘Unrestricted zone’ of the district and reclaim intrusion in its ‘Restricted zone’ of which ANP is part. This raises imminent fear of growing cases of encroachment of human activities into illegal and high-risk zones and a possible second de-gazettement of the park. The reversal of this trend requires the implementation of the local LULC plan and the promotion of the ecological lifestyle.","PeriodicalId":54313,"journal":{"name":"Journal of Sustainable Forestry","volume":"42 1","pages":"22 - 42"},"PeriodicalIF":1.6,"publicationDate":"2021-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/10549811.2021.1933538","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45197016","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Proximate Analysis and Strength Properties of Carbonized Woods from the Most-Used Tropical Timbers from the Afram Plains, Ghana’s Charcoal Production Hub 来自加纳木炭生产中心阿夫拉姆平原最常用的热带木材的炭化木材的近似分析和强度特性

IF 1.6 4区农林科学

Journal of Sustainable Forestry Pub Date : 2021-07-15 DOI: 10.1080/10549811.2021.1948869

C. Antwi-Boasiako, M. Glalah

{"title":"Proximate Analysis and Strength Properties of Carbonized Woods from the Most-Used Tropical Timbers from the Afram Plains, Ghana’s Charcoal Production Hub","authors":"C. Antwi-Boasiako, M. Glalah","doi":"10.1080/10549811.2021.1948869","DOIUrl":"https://doi.org/10.1080/10549811.2021.1948869","url":null,"abstract":"ABSTRACT Charcoal is a brittle, black carbon residue produced from the carbonization of cellulosic materials for energy. Its properties vary per the timber carbonized. It is often used regardless the intended purpose and the timber carbonized. However, for objective utilization, the proximate and strength properties of carbonized woods from six widely-used timbers in the Afram Plains, Ghana, were investigated. Moisture content for the carbonized woods met the recommended Standards. Hence, would be hardly alterable under normal atmospheric conditions. Their bulk densities ranged from 497.39 ± 3.13 kgm−3 (Azadirachta indica) to 680.50 ± 8.58 kgm−3 (V. paradoxa). E. ivorense charcoal produced the least volatile matter (VM) (18.66 ± 0.73%), ash (1.94 ± 0.04%), much great Calorific value (28208.45 ± 743.72 kJkg−1), the greatest Fixed Carbon Content (73.13 ± 0.69%), Impact Resistance Index (325 ± 23.07), and compressive strength (29.39 ± 1.82 Nmm−2). It would generate much heat and fracture less and could be suitable for use in the Metallurgical Industry. The great VM from all the carbonized woods (18.66 ± 0.73% to 51.91 ± 0.49%) also makes them best suited for outdoor use (e.g., barbecue-making). As they possess varied properties, their intended uses should be guided by their properties for improved performance.","PeriodicalId":54313,"journal":{"name":"Journal of Sustainable Forestry","volume":"41 1","pages":"1064 - 1077"},"PeriodicalIF":1.6,"publicationDate":"2021-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/10549811.2021.1948869","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44331927","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3