Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1080/01431161.2015.1066526 |
Temporal and spatial variations of grassland desertification monitoring in Tibet of China | |
Xu, B.1; Li, J. Y.1,2; Jin, Y. X.1; Wang, Z. L.3; Qin, Z. H.1; Wu, M. Q.3; Wang, D. L.1; Zhang, J.4; Ma, H. L.1; Yang, X. C.1 | |
通讯作者 | Yang, X. C. |
会议名称 | 4th International Symposium on Recent Advances in Quantitative Remote Sensing (RAQRS) |
会议日期 | SEP 22-26, 2014 |
会议地点 | Torrent, SPAIN |
英文摘要 | Tibet, the largest region of the Qinghai-Tibet Plateau, is undergoing extensive grassland deterioration and desertification due to both human and natural factors. Alpine meadow and grassland restoration is difficult after degradation; consequently, the desertification of the Tibetan grassland has attracted substantial social attention. This article considered Amdo, Baingoin, Coqen, and Zhongba counties in Tibet as the study areas, employed remote-sensing data, and developed Tibetan grassland desertification classification indices based on field surveys. Moreover, this study used spectral mixture analysis (SMA) methods to interpret remote-sensing image data from the study areas during three periods (1990, 2000, and 2009) and considered the bare sand (gravel) area proportion as the main basis for the evaluation of grassland desertification. The results of this study demonstrate that the slightly, moderately, and severely desertified grasslands of the monitoring zone covered a total area of 114,113.16km(2) in 1990, accounting for 82.12% of the study area. The area exhibited no change in 2000 and decreased by 4472.31km(2) in 2009. The severely desertified grassland area declined from 1990 to 2009. The degree of grassland desertification in these four Tibetan counties diminished from 1990 to 2009, and the grassland desertification area exhibited a gradual reduction during the same period. Regarding other soil coverage types, the ice and snow area markedly changed and declined to approximately one-third of its original extent during these 20years, and most of the ice and snow area was converted to bare land and various types of desertified grassland. |
来源出版物 | INTERNATIONAL JOURNAL OF REMOTE SENSING |
ISSN | 0143-1161 |
EISSN | 1366-5901 |
出版年 | 2015 |
卷号 | 36 |
期号 | 19-20 |
页码 | 5150-5164 |
出版者 | TAYLOR & FRANCIS LTD |
类型 | Article;Proceedings Paper |
语种 | 英语 |
国家 | Peoples R China |
收录类别 | SCI-E ; CPCI-S |
WOS记录号 | WOS:000364334500024 |
WOS关键词 | SPECTRAL MIXTURE ANALYSIS ; LANDSAT IMAGES ; DYNAMICS ; NINGXIA |
WOS类目 | Remote Sensing ; Imaging Science & Photographic Technology |
WOS研究方向 | Remote Sensing ; Imaging Science & Photographic Technology |
资源类型 | 会议论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/304083 |
作者单位 | 1.Chinese Acad Agr Sci, Inst Agr Resources & Reg Planning, Key Lab Agri Informat, Minist Agr, Beijing 100081, Peoples R China; 2.Ludong Univ, Coll Geog & Planning, Yantai 264025, Peoples R China; 3.Chinese Acad Sci, Ecoenvironm Sci Res Ctr, State Key Lab Urban & Reg Ecol, Beijing 100085, Peoples R China; 4.Planning & Design Inst Forest Prod Ind, State Forestry Adm, Beijing 100714, Peoples R China |
推荐引用方式 GB/T 7714 | Xu, B.,Li, J. Y.,Jin, Y. X.,et al. Temporal and spatial variations of grassland desertification monitoring in Tibet of China[C]:TAYLOR & FRANCIS LTD,2015:5150-5164. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。