Monitoring and analysis of grassland desertification dynamics using Landsat images in Ningxia, China
文献类型：期刊论文
| 作者 | Li, Jinya; Yang, Xiuchun; Jin, Yunxiang; Yang, Zhi2; Huang, Wenguang3; Zhao, Lina4; Gao, Tian; Yu, Haida; Ma, Hailong; Qin, Zhihao |
| 刊名 | REMOTE SENSING OF ENVIRONMENT
 |
| 出版日期 | 2013 |
| 卷号 | 138页码:19-26 |
| 关键词 | Grassland desertification Spectral mixture analysis Spatiotemporal analysis Grazing ban Ningxia |
| ISSN号 | 0034-4257 |
| DOI | 10.1016/j.rse.2013.07.010 |
| 文献子类 | Article |
| 英文摘要 | State and local governments in China have implemented a series of grassland protection policies to address the problem of grassland degradation. In 2003, Ningxia was the first province to implement a province-wide grazing ban. The effect of this ban is contentious at all levels of government and has become a topic of public concern. Grassland desertification is the most direct indicator of the effect of the grazing ban. We selected 14 counties and cities in north-central Ningxia as the study area. A desertification classification and grading system for Ningxia's grassland was then designed based on fieldwork and expert review. Using the Spectral Mixture Analysis (SMA) and decision-tree methods, we interpreted Landsat TM/ETM + images of the study area during four years: 1993, 2000, 2006 and 2011. The following results were obtained: from 1993 to 2011, the area of desertified grassland in north-central Ningxia decreased gradually from 8702 km(2) in 1993 to 7485 km(2) in 2011, a decrease of 13.98%; the degree of desertification gradually decreased from 3573 km(2) of severely desertified grassland in 1993 to 1450 km(2) in 2011, a decrease of 59.41%; desertified grassland vegetation was restored rapidly during 2000-2006 and 2006-2011, reducing the total area of desertified grassland annually by 1.87 and 0.61%, respectively; finally, the area of severely desertified grassland decreased annually by 5.78 and 6.28% during 2000-2006 and 2006-2011, respectively. These results show that the region-wide grazing ban, together with other ecological engineering measures, has helped reverse desertification and promote the restoration of grassland vegetation. (C) 2013 Elsevier Inc All rights reserved. |
| 学科主题 | Environmental Sciences ; Remote Sensing ; Imaging Science & Photographic Technology |
| 出版地 | NEW YORK |
| 电子版国际标准刊号 | 1879-0704 |
| WOS关键词 | SPECTRAL MIXTURE ANALYSIS ; VEGETATION CHANGE ; DEGRADATION ; INDICATORS ; SCIENCE |
| WOS研究方向 | Science Citation Index Expanded (SCI-EXPANDED) |
| 语种 | 英语 |
| WOS记录号 | WOS:000326767300003 |
| 出版者 | ELSEVIER SCIENCE INC |
| 资助机构 | Grassland Supervisory Center of the Ningxia Hui Autonomous Region ; grassland workstations |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/28107]  |
| 专题 | 植物研究所_系统与进化植物学研究中心_系统与进化植物学研究中心_学位论文 |
| 作者单位 | 1.Chinese Acad Sci, Inst Bot, Beijing 100093, Peoples R China 2.Chinese Acad Agr Sci, Inst Agr Resources & Reg Planning, Minist Agr, Key Lab Agriinformat, Beijing 100081, Peoples R China 3.Minist Agr, Grassland Monitoring & Supervis Ctr, Beijing 100125, Peoples R China 4.Ningxia Grassland Monitoring & Supervis Ctr, Yinchuan 750002, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Jinya,Yang, Xiuchun,Jin, Yunxiang,et al. Monitoring and analysis of grassland desertification dynamics using Landsat images in Ningxia, China[J]. REMOTE SENSING OF ENVIRONMENT,2013,138:19-26. |
| APA | Li, Jinya.,Yang, Xiuchun.,Jin, Yunxiang.,Yang, Zhi.,Huang, Wenguang.,...&Xu, Bin.(2013).Monitoring and analysis of grassland desertification dynamics using Landsat images in Ningxia, China.REMOTE SENSING OF ENVIRONMENT,138,19-26. |
| MLA | Li, Jinya,et al."Monitoring and analysis of grassland desertification dynamics using Landsat images in Ningxia, China".REMOTE SENSING OF ENVIRONMENT 138(2013):19-26. |
入库方式： OAI收割
来源：植物研究所
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