Results 21 to 30 of about 1,969 (156)
Spatiotemporal Coupling Relationship Between Plateau Pika Disturbance and Alpine Meadow Degradation [PDF]
, 2023 [Objective] Plateau pika (Ochotona curzoniae) is a key species in the alpine meadow ecosystem of the Qinghai-Xizang Plateau. The coupling relationship between pika activity and meadow degradation was analyzed in order to further improve the observation ...
Gao Chongyue +5 more
core +1 more source
水土保持措施驱动村域土地利用景观格局变化——以米脂县高西沟村为例
Shuitu Baochi Xuebao, 2023 以陕北地区典型乡村——榆林市米脂县高西沟村为例,探究其在水土保持措施下土地利用景观格局变化及驱动因素,对黄土丘陵区水土保持、景观格局优化、美丽乡村建设和生态可持续发展具有指导意义。基于高西沟1986年、2004年、2022年遥感影像,借助ArcGIS、ERDAS和FRAGSTATS等软件,运用动态度、转移矩阵、景观格局指数对土地利用变化进行分析,并对其驱动因素展开探讨。结果表明:(1)林地和草地是高西沟的主导地类,约占区域总面积的80%,耕地、未利用地呈减少趋势,水域和建设用地无较大变化 ...
涂雯, 吴静雯, 马理辉, 冯喆
doaj
近25 a 银川市城市化进程中热力景观格局演变分析 [PDF]
, 2016 ： Based on the Landsat images and statistical data，in this paper the urbanization process and thermal landscape dynamics of Yinchuan City were analyzed． The objectives of this study were as follows: ① To analyze the spatial and dynamic characteristics of
吕荣芳, 张建明, 王浩, 王鹏龙
core
Justice in coexistence: Pastoralism and large carnivores on the Qinghai‐Tibet Plateau
People and Nature, EarlyView.Abstract The conflict between livestock husbandry and large carnivore conservation presents significant challenges in grassland ecosystems worldwide. Achieving sustainable coexistence among herders, livestock and large carnivores requires reconciling diverse perspectives and interests through equitable, inclusive and fair processes that address both ...
Yufang Gao, Yue Yu
wiley +1 more source
Shuitu Baochi Xuebao, 2006 应用景观生态学原理，建立了区域景观格局指标体系；以黄河黑山峡水电开发建设方案为背景，在3S技术支持下，通过对TM影像解译，在获取大量数据和分析项目区景观格局现状的基础上，研究了水电开发备选建设方案对区域景观格局的影响。结果显示，备选方案中的梯级方案实施后，区域景观的多样性、均匀度以及景观生态风险指数变化不大，对区域原有景观生态系统的影响相对较小，区域原有生态体系的性质和功能没有发生显著变化。
张文静 +6 more
doaj +2 more sources
Shuitu Baochi Xuebao, 2023 陕西汉江流域是"南水北调"中线工程的主要水源地,属于国家重点生态功能区。研究流域内景观格局的时空变化特征、生态系统服务价值和景观生态风险的相关性,对保持流域内生态系统稳定性、保障流域生态安全具有指导意义。基于2000年、2005年、2010年、2015年、2020年陕西汉江流域5期土地利用数据,采用景观格局指数计算、生态系统服务价值评估、景观生态风险评估等方法,研究景观格局变化下生态系统服务价值、景观生态风险的时空演变机制及空间相关关系。结果表明:(1)2000—2020年 ...
孟晓璐, 张艳芳
doaj
Island Ecosystem Assessment：A Case Study of Baishashan Island in Zhoushan, Zhejiang Province [PDF]
, 2015 我国是海洋大国，岛屿众多，海岛是我国国土的重要组成部分，海岛蕴藏着极为丰富的生物、矿物、能源、港口、旅游、生态环境资源等，海岛地理位置特殊，在维护国家领土完整、维护海洋权益等关系到民族生存与发展等方面具有不可估量的社会、经济、科研、生态和政治及军事价值。近年来，国家高度重视海岛开发与保护，对海洋强国、海洋战略、海洋产业、海洋资源作出了一系列决策部署。 目前我国在海岛开发、保护和管理中存在诸多问题，许多海岛开发是在未开展生态调查，缺乏开发规划的情况下开展的，导致海岛生态系统遭受破坏或生态功能下降 ...
王丰
core
Evolution Simulation and Driving Factors of Eco-spatial Carbon Sinks in Beibu Gulf Urban Agglomeration Based on FLUS-InVEST Model [PDF]
, 2022 [Objective] The impact of future changes in the ecological space of urban agglomerations in the bay area on carbon sinks were analyzed, and the driving factors behind the changes were identified in order to provide a reference for future ecological space
Pang Yayue +4 more
core +1 more source
Differences in characteristics between naturalized threatened plants and other threatened plants
Conservation Biology, EarlyView.Abstract Many non‐native plant species introduced by humans have become naturalized. At the same time many species are threatened in their native range. However, the number of plant species threatened in their native range that are naturalized elsewhere remains unknown.
Weihan Zhao +10 more
wiley +1 more source
Resilience Assessment of Coastal Urban Land-Water System and Landscape Pattern Design [PDF]
, 2017 在过去的十年间，我国海岸带地区尤其是东部沿海地区，经历了快速城市化的过程，不断加剧的土地利用变化，尤其是不透水面景观的增加引发了一定程度的环境退化。不可逆的景观变化可能会引发城市系统功能的损失以及不良的弹性转变，其中最重要的影响便是水质的退化以及水资源短缺，严重干扰城市水景观安全格局，对该区域水环境与水资源系统造成严重影响。 本研究基于弹性量化框架，利用改进的方法来量化、评估2005-2015年间连云港城市水-土地利用系统的弹性，指标体系中除传统的常用的水质、水量指标外，特别增加了不透水面的相关指标 ...
林静玉
core