Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.rse.2013.07.010 |
Monitoring and analysis of grassland desertification dynamics using Landsat images in Ningxia, China | |
Li, Jinya1; Yang, Xiuchun1; Jin, Yunxiang1; Yang, Zhi2; Huang, Wenguang3; Zhao, Lina4; Gao, Tian1; Yu, Haida1; Ma, Hailong1; Qin, Zhihao1; Xu, Bin1 | |
通讯作者 | Xu, Bin |
来源期刊 | REMOTE SENSING OF ENVIRONMENT
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ISSN | 0034-4257 |
EISSN | 1879-0704 |
出版年 | 2013 |
卷号 | 138页码:19-26 |
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. |
英文关键词 | Grassland desertification Spectral mixture analysis Spatiotemporal analysis Grazing ban Ningxia |
类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
收录类别 | SCI-E |
WOS记录号 | WOS:000326767300003 |
WOS关键词 | SPECTRAL MIXTURE ANALYSIS ; VEGETATION CHANGE ; DEGRADATION ; INDICATORS ; SCIENCE |
WOS类目 | Environmental Sciences ; Remote Sensing ; Imaging Science & Photographic Technology |
WOS研究方向 | Environmental Sciences & Ecology ; Remote Sensing ; Imaging Science & Photographic Technology |
来源机构 | 中国科学院植物研究所 |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/179739 |
作者单位 | 1.Chinese Acad Agr Sci, Inst Agr Resources & Reg Planning, Minist Agr, Key Lab Agriinformat, Beijing 100081, Peoples R China; 2.Minist Agr, Grassland Monitoring & Supervis Ctr, Beijing 100125, Peoples R China; 3.Ningxia Grassland Monitoring & Supervis Ctr, Yinchuan 750002, Peoples R China; 4.Chinese Acad Sci, Inst Bot, Beijing 100093, 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]. 中国科学院植物研究所,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. |
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Monitoring and analy(1352KB) | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 浏览 |
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