Results 51 to 60 of about 2,028 (158)
Shuitu Baochi Xuebao, 2020 通过研究三峡水库坝区生态屏障区近25年来的土地利用变化，揭示其时空变化规律及驱动机制，为坝区生态屏障区土地资源的合理开发利用及生态系统管理提供科学依据。运用RS和GIS技术对1993年、2006年和2018年3期Landsat遥感影像进行处理，得到土地利用类型分布图；综合运用土地利用变化量、变化幅度和转移矩阵等定量指标，对三峡水库坝区生态屏障区1993—2018年间的土地利用变化进行分析。结果表明：1993年以来，三峡水库坝区生态屏障区土地利用结构变化明显，表现为林地、园地和水域的增加，耕地的大幅减少 ...
田培 +6 more
doaj
1985-2020年天水市黄土区滑坡灾损土地利用时空变化特征
Shuitu Baochi Xuebao, 2023 为探索甘肃省天水市滑坡土地利用特征及时空变化规律,选取秦州区和麦积区作为典型黄土滑坡区的代表,基于12.5 m分辨率的ALOS DEM数据和1985—2020年全球30 m的精细地表覆盖动态监测产品,利用GIS空间分析、土地利用净变化量指数、土地利用转移矩阵和土地利用贡献率,分析滑坡体的特征参数、土地利用/覆被类型、土地利用转移特征及驱动因素。结果表明:(1)研究区共识别出469个滑坡样本,平均高程集中于1 200~1 400 m,平均坡度10°~15°,平均坡向为西向坡,前后缘相对高差100~150 ...
贾静 +5 more
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World Water Policy, Volume 12, Issue 1, February 2026.ABSTRACT Water security in tropical regions faces escalating pressures from climate change, land‐use shifts, and population growth. We conducted a bibliometric review of 1146 peer‐reviewed articles (1964–2023) on tropical water security. Latent Dirichlet Allocation identified 13 thematic topics and their evolution. Publications rose sharply after 2012,
Karling Fernanda Schuster +3 more
wiley +1 more source
Shuitu Baochi Xuebao, 2008 为了研究榆林地区近13年来土地利用结构变化及其趋势,本文选用1993年、2000年和2006年三期遥感影像,利用Erdas软件和ArcGIS 9.1软件,采用土地利用动态度、开发度和耗损度等指数模型,分析了榆林地区1993-2006年土地利用类型的数量变化和空间变化特征以及各地类的转移情况。结果表明:榆林地区13年来各类土地利用类型综合动态度有下降趋势;各类土地利用类型的增减在空间上变化比较大,通过统计分析显示,草地、耕地变化较快,林地、建设用地呈增长趋势,未利用地、水域面积减少;土地利用动态度 ...
胡振琪 +4 more
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Conservation Biology, Volume 40, Issue 1, February 2026.Abstract As the global protected area (PA) network expands to meet international targets, it is important to assess whether traditional reliance on public land will suffice for projected PA growth or whether other tenures, such as Indigenous or pastoral lands, may increasingly contribute.
Emmeline Norris +2 more
wiley +1 more source
Shuitu Baochi Xuebao, 2002 运用GIS软件,快速大容量地处理所采集的信息,在建立区域土地利用现状数据库及矢量化图库的基础上,通过空间数据和属性数据的综合处理,对四川盆边山区的区域土地利用动态变化及现状进行了探讨,分析了引起土地利用动态变化的各项动力源,提示了人口、经济状况、技术进步和土地政策始终是土地利用变化的关键。针对土地利用现状中存在的主要问题,对区域土地利用的优化和可持续发展提供了建议。
黄云 付瓦利 等
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Effects of organized guarding on mortality from human–elephant conflict in northeast India
Conservation Biology, Volume 40, Issue 1, February 2026.Abstract Human–elephant conflict (HEC) frequently results in human and elephant mortality, posing major social justice and conservation concerns across Asia and Africa. Although a variety of interventions have been introduced to mitigate HEC, rigorous evaluations of how they affect mortality are practically nonexistent.
Nitin Sekar +6 more
wiley +1 more source
International Journal of Urban and Regional Research, Volume 50, Issue 1, Page 191-220, January 2026.Abstract Henry George advocated for capturing land value increases for public ends. The active approach of public authorities organizing and financing land development can help capture higher land value increases, as Hartman and Spit indicate. However, this approach hardly happens in developing countries, where the coalition of private developers and ...
Nannan Xu
wiley +1 more source
Evaluating protected areas’ coverage of threats to terrestrial biodiversity
Conservation Biology, Volume 39, Issue 6, December 2025.Abstract Protected areas (PAs) are vital for biodiversity conservation and have expanded globally. However, increasing pressures on biodiversity make it difficult to achieve conservation goals. Using threat probability maps based on the International Union for Conservation of Nature Red List and the World Database of Protected Areas, we analyzed the ...
Katherine Pulido‐Chadid +2 more
wiley +1 more source
Shuitu Baochi Xuebao, 2003 认为土地整理改变着土地利用/覆被变化(LUCC),并进而对其优化调控.而同时土地整理又需要土地利用/覆被变化的研究提供技术支持.加之县域土地整理是区域乃至全国土地整理目标和方向在时空推进上的具体落实,是检验和评价区域土地整理效果和跟踪监测的有效场地.因此,本文以重庆市万州区为例,就县域土地整理与土地利用/覆被变化变化作以探讨.
邵景安, 刘秀华, 魏朝富
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