Results 11 to 20 of about 1,091 (150)
Identifying socioeconomic and biophysical factors driving forest loss in protected areas
Conservation Biology, Volume 37, Issue 4, August 2023., 2023 Abstract Protected areas (PAs) are a commonly used strategy to confront forest conversion and biodiversity loss. Although determining drivers of forest loss is central to conservation success, understanding of them is limited by conventional modeling assumptions.
Kathryn A. Powlen +3 more
wiley +1 more source
Conservation Biology, Volume 34, Issue 1, Page 194-206, February 2020., 2020 Abstract Stand structure develops with stand age. Old‐growth forests with well‐developed stand structure support many species. However, development rates of stand structure likely vary with climate and topography. We modeled structural development of 4 key stand variables and a composite old‐growth index as functions of climatic and topographic ...
Yuichi Yamaura +6 more
wiley +1 more source
Soil and Water Conservation and Ecological Benefits of Forest Ecosystem in New Urban Karst Areas of Central Guizhou Province [PDF]
, 2022 [Objective] Soil and water conservation and ecological benefits of forest ecosystem in the new urban karst areas of Guanshanhu District, Guiyang City in Central Guizhou Province were studied to scientifically evaluate the achievements of ecological ...
Dai Zhengjiao +6 more
core +1 more source
Characteristics of Erosive Rainfall and Its Effects on Runoff and Sediment Yield in a Low Mountain and Hilly Area of Lianyungang City [PDF]
, 2022 [Objective] The effects of different rainfall characteristics and different underlying surface conditions on soil erosion and sediment yield were determined in a low mountain and hilly area of Lianyungang City, Jiangsu Province, in order to provide a ...
Cheng Jianmin +3 more
core +1 more source
Effects of Ecological Restoration Measures of Fish-scale Pit on Soil and Water Conservation in Bashang Grassland [PDF]
, 2023 [Objective] The effects of fish-scale pits at different locations on soil and water conservation were studied in order to define underlying layout principles for fish-scale pits, and to provide information for fish-scale pit site selection and effect ...
Huang Lingbing +7 more
core +1 more source
Shuitu Baochi Xuebao, 2022 为研究不同坡长客土坡面产流产沙及沟蚀特征差异变化,通过设计2个坡度(15°,20°)下不同坡长(2,4,6,8,10 m)的野外径流小区进行冲刷试验。结果表明:(1)初始产流时间变化范围与产流停止时间均随坡长增加而增大,产流率初期快速增加,达到初次峰值后呈现不规律波动,累积产流量随坡长增加而增多;产流率、累积产流量与坡长、产流时间及其交互作用呈极显著相关(p＜0.01),累积产流量在2种坡度下均与坡长、产流时间呈幂函数相关。(2)产沙率初期快速增加,达到初次峰值后随冲刷时间逐渐下降 ...
张馨予 +6 more
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Soil Particle Settlement Sorting and Distribution Characteristics of Carbon, Nitrogen and Salt During Gradual Thawing [PDF]
, 2023 [Objective] The classification of sediment particles and the accompanying distribution characteristics of carbon, nitrogen and salt in the process of soil thawing layer by layer under snowmelt runoff scenario were analyzed in order to identify the ...
Hu Yaxian +5 more
core +1 more source
Global Research Progress Regarding Gully Erosion from 1991 to 2020 [PDF]
, 2023 [Objective] The international research situation, current research status, and trends in research hotspots in the field of gully erosion at home and abroad from 1991 to 2020 were analyzed, and the development trends of gully erosion measurement ...
Duan Shengdan +5 more
core +1 more source
新工科教育模式下的课程教学方法研究——以“道路勘测设计”为例 [PDF]
, 2019 在新工科教育改革的背景下,培养高水平人才的目标必须落实到提升课程的教学质量。授课老师应从课程特点、学生能力、兴趣点出发,因材施教、因势利导地设计每一门的教学方法。本文以道路...本文系 2018 年福建省本科高校一般教学改革研究项目 (FBJG20180185 ...
陈志为, 高婧
core +2 more sources
Shuitu Baochi Xuebao, 2022 为探究坡形对浅沟发育的影响，以陕西省靖边县狼儿子沟无人机航摄影像为基础数据，通过目视解译得到浅沟（指瓦背状地形底部）225条，统计了浅沟条数、浅沟长度、沟头到分水岭的距离及浅沟密度等指标。利用浅沟地形分水线上的高程点进行插值得到原始坡面数字高程模型（digital elevation model，DEM），以此DEM提取地形曲率以表征坡形，进而分析坡形与浅沟指标的关系。结果表明：（1）以浅沟地形分水线上的高程点插值后的DEM对浅沟进行了综合，能较好地表达浅沟发育之前原始坡面的地形特征。（2 ...
王海于 +4 more
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