机构

• 地理科学与资源研究所 [7]
• 长春光学精密机械与物... [1]

采集方式

• OAI收割 [8]

内容类型

• 期刊论文 [5]
• SCI/SSCI论文 [2]
• 会议论文 [1]

发表日期

• 2023 [2]
• 2019 [3]
• 2011 [2]
• 2009 [1]

学科主题

筛选

浏览/检索结果: 共8条，第1-8条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序提交时间升序提交时间降序作者升序作者降序发表日期升序发表日期降序 Enhancing sustainability of vegetation ecosystems through ecological engineering: A case study in the Qinghai-Tibet Plateau 期刊论文  OAI收割 JOURNAL OF ENVIRONMENTAL MANAGEMENT, 2023, 卷号: 325, 页码: 11 作者:  Yu, Qing;  Lu, Hongwei;  Yao, Tianci;  Xue, Yuxuan;  Feng, Wei   |  收藏  |  浏览/下载：41/0  |  提交时间：2023/01/09 Ecological engineering  Climate change  Human activities  Relative role  Spatial heterogeneity  Qinghai-Tibet Plateau   Enhancing sustainability of vegetation ecosystems through ecological engineering: A case study in the Qinghai-Tibet Plateau 期刊论文  OAI收割 JOURNAL OF ENVIRONMENTAL MANAGEMENT, 2023, 卷号: 325, 页码: 11 作者:  Yu, Qing;  Lu, Hongwei;  Yao, Tianci;  Xue, Yuxuan;  Feng, Wei   |  收藏  |  浏览/下载：25/0  |  提交时间：2023/01/09 Ecological engineering  Climate change  Human activities  Relative role  Spatial heterogeneity  Qinghai-Tibet Plateau   Assessing the relative role of climate change and human activities in desertification of North China from 1981 to 2010 期刊论文  OAI收割 FRONTIERS OF EARTH SCIENCE, 2019, 卷号: 13, 期号: 1, 页码: 43-54 作者:  Xu, Duanyang;  Song, Alin;  Li, Dajing;  Ding, Xue;  Wang, Ziyu   |  收藏  |  浏览/下载：89/0  |  提交时间：2019/05/22 desertification  climate change  human activity  relative role  North China   Assessing the relative role of climate change and human activities in desertification of North China from 1981 to 2010 期刊论文  OAI收割 FRONTIERS OF EARTH SCIENCE, 2019, 卷号: 13, 期号: 1, 页码: 43-54 作者:  Xu, Duanyang;  Song, Alin;  Li, Dajing;  Ding, Xue;  Wang, Ziyu   |  收藏  |  浏览/下载：23/0  |  提交时间：2019/05/22 desertification  climate change  human activity  relative role  North China   Assessing the relative role of climate change and human activities in desertification of North China from 1981 to 2010 期刊论文  OAI收割 FRONTIERS OF EARTH SCIENCE, 2019, 卷号: 13, 期号: 1, 页码: 43-54 作者:  Xu, Duanyang;  Song, Alin;  Li, Dajing;  Ding, Xue;  Wang, Ziyu   |  收藏  |  浏览/下载：24/0  |  提交时间：2019/05/22 desertification  climate change  human activity  relative role  North China   Optimization and design of the bottom support of the primary mirror chamber in the opto-electronic device (EI CONFERENCE) 会议论文  OAI收割 2011 International Conference on Transportation, Mechanical, and Electrical Engineering, TMEE 2011, December 16, 2011 - December 18, 2011, Changchun, China 作者:  Zhang G.;  Zhang G.;  Zhang G. 收藏  |  浏览/下载：13/0  |  提交时间：2013/03/25 In the large-diameter opto-electronic device tracking equipment  by full analyzing the support structure of the primary mirror  the primary mirror usually uses the combination of the bottom support and the lateral support. Because both the bottom support and the lateral support are installed on the primary mirror chamber's base plate  after changing the welded structure of the primary mirror chamber structure to the cast structure and improving the stiffness of the primary mirror base plate  the stiffness of the base plate will show in the amount of sloshing of the primary mirror relative to the primary mirror chamber and therefore influences the tracking accuracy of the opto-electronic device. During the assembling and adjusting of the primary mirror in the actual process of working on the project  the amount of sloshing of the primary mirror is reduced significantly. The results show that in working on the primary mirror support  as is found that the amount of sloshing of the primary mirror relative to the primary mirror chamber is comparatively large  the forms and structure stiffness of bottom support and lateral support should be considered  together with that the stiffness of the primary mirror chamber acting as the basis is playing the crucial role. 2011 IEEE.   Assessment of the relative role of climate change and human activities in desertification: A review SCI/SSCI论文  OAI收割 2011 Xu D. Y.; Li C. L.; Zhuang D. F.; Pan J. J. 收藏  |  浏览/下载：26/0  |  提交时间：2012/06/08 desertification  climate change  human activities  relative role  assessment  net primary production  human appropriation  land degradation  semiarid  china   Assessing the relative role of climate change and human activities in sandy desertification of Ordos region, China SCI/SSCI论文  OAI收割 2009 Xu D. Y.; Kang X. W.; Liu Z. L.; Zhuang D. F.; Pan J. J. 收藏  |  浏览/下载：21/0  |  提交时间：2012/06/08 Ordos  causes of sandy desertification  climate change  human  activities  relative role  NPP  ndvi data  vegetation  degradation  variability  ecosystems  dynamics  surface