中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
机构
采集方式
内容类型
发表日期
学科主题
筛选

浏览/检索结果: 共15条，第1-10条 帮助

条数/页： 排序方式：
羌塘高原自然保护地社会生态效果评价 期刊论文  OAI收割
生态学报, 2020, 卷号: 40, 期号: 23, 页码: 8743-8752
作者:  徐增让;  邹秀萍
  |  收藏  |  浏览/下载：10/0  |  提交时间：2021/01/16
Characterization of particulate matter deposited on urban tree foliage: A landscape analysis approach 期刊论文  OAI收割
ATMOSPHERIC ENVIRONMENT, 2017, 卷号: 171, 期号: 0, 页码: 59-69
作者:  Lin, Lin;  Yan, Jingli;  Ma, Keming;  Zhou, Weiqi;  Chen, Guojian
  |  收藏  |  浏览/下载：236/0  |  提交时间：2018/07/20
Landscape Pattern Changes of Desert Oasis Wetlands in the Middle Reach of the Heihe River, China 期刊论文  iSwitch采集
ARID LAND RESEARCH AND MANAGEMENT, 2010, 卷号: 24, 期号: 3, 页码: 253-262
作者:  Li, Shoubo;  Zhao, Wenzhi
收藏  |  浏览/下载：18/0  |  提交时间：2019/10/08
Land use dynamics and landscape change pattern in Hetao irrigation district, Inner Mongolia, China 会议论文  OAI收割
6th International Symposium on Digital Earth: Data Processing and Applications, Beijing, China, September 9, 2009 - September 12,2009
Zhang, Yinhui; Luo, Yi; Zhao, Wenwu
收藏  |  浏览/下载：27/0  |  提交时间：2014/12/07
This study analyzed spatial and temporal changes in land use in an irrigation district covering an area of 1.7 million ha in Northern China by GIS analyses and also investigated changes in landscape pattern using the landscape structure analysis program FRAGSTATS over the study period from 1986 to 2000. The decreases in farmland and the increases in grassland area mainly resulted from the policy of grain for green and converting slope farmland into pasture from China government. In spite of the efforts to conserve the fragile ecosystem  the land degradation  including soil salinization and grassland degradation  was spreading rapidly. The area of alkali-saline land increased by 22493 ha and about 50555 ha of dense grassland degraded into mid-density grassland. In terms of landscape fragmentation  both farmland and dense grassland showed the tendency of increased fragmentation. Both adverse natural conditions and human activities are responsible for the land degradation expansion in Hetao irrigation district  but the root causes are increasing population pressure and irrational human activities  such as flooding irrigation method and over-grazing. To prevent land degradation from spreading  population control and improvement of the management are prerequisite approaches. 2010 SPIE.  
Landscape analysis of dynamic soil erosion in Subtropical China: A case study in Xingguo County, Jiangxi Province 期刊论文  iSwitch采集
SOIL & TILLAGE RESEARCH, 2009, 卷号: 105, 期号: 2, 页码: 313-321
作者:  Wang, K.;  Wang, H. J.;  Shi, X. Z.;  Weindorf, D. C.;  Yu, D. S.
收藏  |  浏览/下载：38/0  |  提交时间：2019/10/10
Analysis of the landscape change at River Basin scale based on SPOT and TM fusion remote sensing images: a case study of the Weigou River Basin on the Chinese Loess Plateau 期刊论文  iSwitch采集
INTERNATIONAL JOURNAL OF EARTH SCIENCES, 2009, 卷号: 98, 期号: 3, 页码: 651-664
作者:  Dong Xiaofeng;  Liu Lichen;  Wang Jianhua;  Shi Jin;  Pan Jinghu
收藏  |  浏览/下载：43/0  |  提交时间：2019/10/08
北方农牧交错带土地利用及景观格局变化特征 期刊论文  OAI收割
环境科学研究, 2007, 卷号: 20, 期号: 5, 页码: 148-154
刘军会; 高吉喜; 耿斌; 吴黎军
收藏  |  浏览/下载：33/0  |  提交时间：2010/09/03
冀西北间山盆地区景观动态变化研究 期刊论文  OAI收割
水土保持研究, 2007, 卷号: 14, 期号: 3, 页码: 36-39
刘军会; 赵维全; 王卫; 高吉喜
收藏  |  浏览/下载：24/0  |  提交时间：2010/09/25
西双版纳勐仑地区景观格局变化定量分析 期刊论文  OAI收割
生态学报, 2006, 卷号: 26, 期号: 9
作者:  曹 敏;  胡华斌;  马友鑫
收藏  |  浏览/下载：10/0  |  提交时间：2012/04/09
近50a来霍林河流域下游沿岸湿地景观格局演变 期刊论文  OAI收割
干旱区地理, 2006, 卷号: 29, 期号: 6, 页码: 829－837
卢晓宁; 邓伟; 张树清
收藏  |  浏览/下载：17/0  |  提交时间：2010/11/17