干旱区生态环境知识资源中心(Arid): Identification of land degradation hotspots in semiarid region of Anantapur district, Southern India, using geospatial modeling approaches

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DOI	10.1007/s40808-020-00794-x
	Identification of land degradation hotspots in semiarid region of Anantapur district, Southern India, using geospatial modeling approaches
	Kumar, B. Pradeep; Babu, K. Raghu; Rajasekhar, M.; Ramachandra, M.
通讯作者	Babu, KR
来源期刊	MODELING EARTH SYSTEMS AND ENVIRONMENT
ISSN	2363-6203
EISSN	2363-6211
出版年	2020
卷号	6 期号:3 页码:1841-1852
英文摘要	Land degradation and desertification has been graded as a foremost environmental dispute for the coming eras. Thus, the surveillance and early detection of degradation is a major objectives for a number of scientific and policy organizations, with RS and GIS techniques being a candidate choice for the development of monitoring systems. This study was carried out as an attempt to develop a new modeling approach for identification of desertified hotspots based on normalized difference vegetation index (NDVI) in semiarid region of Anantapur district, Southern India. A supervised classification was carried out on the six reflective bands for the past 28 years, i.e., from 1990 to 2018 individually with the aid of ground truth data. Ground truth information collected during field data and land cover map of 2005-2006 was used to assess the accuracy of the classification results. Using ancillary data, visual interpretation and expert knowledge of the area through GIS further refined the classification results. Post-classification change detection technique was used to produce change image through cross-tabulation. Changes among different NDVI classes such as water bodies, agricultural fields, vegetation, degraded lands, desertified lands were assessed. During the study period, a very severe land degradation has taken place as a results reveals that 31.93% of the land in this region is facing the land degradation and desertification conditions; in that 17.34% of the land face the severe land degradation and 14.59% of the land have been desertified. These changes in land cover led to vegetation degradation and water logging in part of the study area.
英文关键词	Land degradation Desertification NDVI Remote sensing Geographical information system
类型	Article
语种	英语
收录类别	ESCI
WOS记录号	WOS:000530811000002
WOS关键词	ANDHRA-PRADESH ; DESERTIFICATION
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/334338
作者单位	[Kumar, B. Pradeep; Babu, K. Raghu; Rajasekhar, M.; Ramachandra, M.] Yogi Vemana Univ, Dept Geol, Kadapa 516003, Andhra Pradesh, India
推荐引用方式 GB/T 7714	Kumar, B. Pradeep,Babu, K. Raghu,Rajasekhar, M.,et al. Identification of land degradation hotspots in semiarid region of Anantapur district, Southern India, using geospatial modeling approaches[J],2020,6(3):1841-1852.
APA	Kumar, B. Pradeep,Babu, K. Raghu,Rajasekhar, M.,&Ramachandra, M..(2020).Identification of land degradation hotspots in semiarid region of Anantapur district, Southern India, using geospatial modeling approaches.MODELING EARTH SYSTEMS AND ENVIRONMENT,6(3),1841-1852.
MLA	Kumar, B. Pradeep,et al."Identification of land degradation hotspots in semiarid region of Anantapur district, Southern India, using geospatial modeling approaches".MODELING EARTH SYSTEMS AND ENVIRONMENT 6.3(2020):1841-1852.