中国科学院机构知识库网格系统: 检索

浏览/检索结果: 共8条，第1-8条

帮助

条数/页：排序方式：
	Evidence for miRNAs involved in the high-altitude responses of sainfoin (Onobrychis viciifolia) grown in the Qinghai-Tibetan plateau 期刊论文 OAI收割 JOURNAL OF PLANT BIOCHEMISTRY AND BIOTECHNOLOGY, 2021 作者: Yin, Hengxia; Zhou, Huakun; Wang, Wenying; Tran, Lam-Son Phan; Zhang, Benyin \| 收藏 \| 浏览/下载：16/0 \| 提交时间：2021/11/18 Extreme natural conditions microRNAs Qinghai-Tibetan plateau Regulatory networks Sainfoin
	The varying driving forces of PM2.5 concentrations in Chinese cities: Insights from a geographically and temporally weighted regression model 期刊论文 OAI收割 ENVIRONMENT INTERNATIONAL, 2020, 卷号: 145, 页码: 10 作者: Liu, Qianqian; Wu, Rong; Zhang, Wenzhong; Li, Wan; Wang, Shaojian \| 收藏 \| 浏览/下载：35/0 \| 提交时间：2021/03/16 PM2.5 concentrations Geographically and temporally weighted regression Natural conditions Socioeconomic determinants Spatial heterogeneity
	The varying driving forces of PM2.5 concentrations in Chinese cities: Insights from a geographically and temporally weighted regression model 期刊论文 OAI收割 ENVIRONMENT INTERNATIONAL, 2020, 卷号: 145, 页码: 10 作者: Liu, Qianqian; Wu, Rong; Zhang, Wenzhong; Li, Wan; Wang, Shaojian \| 收藏 \| 浏览/下载：17/0 \| 提交时间：2021/03/16 PM2.5 concentrations Geographically and temporally weighted regression Natural conditions Socioeconomic determinants Spatial heterogeneity
	Exploring the Spatial Variation Characteristics and Influencing Factors of PM2.5 Pollution in China: Evidence from 289 Chinese Cities 期刊论文 OAI收割 SUSTAINABILITY, 2019, 卷号: 11, 期号: 17, 页码: 17 作者: Zhao, Shen; Xu, Yong \| 收藏 \| 浏览/下载：29/0 \| 提交时间：2020/05/19 PM2 5 concentration spatial variation natural environmental conditions socio-economic factors China
	Exploring the Spatial Variation Characteristics and Influencing Factors of PM2.5 Pollution in China: Evidence from 289 Chinese Cities 期刊论文 OAI收割 SUSTAINABILITY, 2019, 卷号: 11, 期号: 17, 页码: 17 作者: Zhao, Shen; Xu, Yong \| 收藏 \| 浏览/下载：7/0 \| 提交时间：2020/05/19 PM2 5 concentration spatial variation natural environmental conditions socio-economic factors China
	The Degradation of Chlorophenols in Seawater Under Natural Conditions 期刊论文 OAI收割 INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH, 2017, 卷号: 11, 页码: 49-54 作者: Wang, L. Z.; Duan, Z. C.; Liang, X. M. \| 收藏 \| 浏览/下载：20/0 \| 提交时间：2017/10/29 Chlorophenols Non-biological Factors Degradation Seawater Natural Conditions
	Soil properties at the tree limits of the coniferous forest in response to varying environmental conditions in the Tianshan Mountains, Northwest China 期刊论文 OAI收割 Environmental Earth Sciences, 2010, 期号: 4, 页码: 1--10 Xu; Chen; Luo; Zhang; Lin; Wenqiang1; Xi1; Geping1; Qing1; Qing2 收藏 \| 浏览/下载：27/0 \| 提交时间：2011/08/19 Atmospheric pattern - Combined water - Coniferous forests - Continuous distribution - Electrical conductivity - Environmental conditions - Forest soils - Forest zones - Gain insight - Heat conditions - High precipitations - Lower limits - Natural conditions - NorthWest China - Organic matter - Parent materials - Soil fertility - Soil pH - Soil profiles - Soil property - Soil sample - Soil types
	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.