干旱区生态环境知识资源中心(Arid): Dynamic trend of land degradation/restoration along Indira Gandhi Canal command area in Jaisalmer District, Rajasthan, India: a case study

Arid

DOI	10.1007/s12665-019-8488-5
	Dynamic trend of land degradation/restoration along Indira Gandhi Canal command area in Jaisalmer District, Rajasthan, India: a case study
	Sur, Koyel 1,2; Chauhan, Prakash 1
通讯作者	Sur, Koyel
来源期刊	ENVIRONMENTAL EARTH SCIENCES
ISSN	1866-6280
EISSN	1866-6299
出版年	2019
卷号	78 期号:15
英文摘要	Land cover is a crucial component in assessment of biodiversity and ecosystem services. In arid regions, land cover is mostly composed of aeolian structures which exhibit fragile environmental scenario. The major challenge in this highly dynamic landscape was conversion of desertic land to intensive land use such as agricultural farmlands. To overcome this challenge Indira Gandhi Canal (IGC) and its branches were extended over this district. The main interest of this research was to investigate net primary productivity (NPP) changes using multi-temporal satellite imagery and meteorological datasets within the timeframe of 30years from 1982 to 2012 over this region. This study was taken up to assess the impact of canal in and around IGC command area in Jaisalmer District to understand the consequence on desertic environment. Analysis of three decades terrestrial NPP over IGC command area in Jaisalmer District, India, shows significant increase in NPP. The satellite data-based analysis of NPP as well as validation with the optical data in the study region revealed that this increasing trend in NPP is basically associated to increase in canal networks. The water supply from the canal gradually led to expansion of irrigation in the agricultural fields leading to change in dynamics of the area. This systematic and long-term NPP analysis will be useful to strengthen our understanding for the role of regional land cover types and impact of their change in the national and global carbon cycle for understanding land degradation and desertification scenario in the study area.
英文关键词	Land Degradation Desertification Change IGC NPP
类型	Article
语种	英语
国家	India
收录类别	SCI-E
WOS记录号	WOS:000477884200002
WOS关键词	THAR DESERT ; TERRESTRIAL ; DEGRADATION ; VEGETATION
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Water Resources
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/215428
作者单位	1.Space Applicat Ctr ISRO, Ahmadabad, Gujarat, India; 2.Nirma Univ, Inst Sci, Ahmadabad, Gujarat, India
推荐引用方式 GB/T 7714	Sur, Koyel,Chauhan, Prakash. Dynamic trend of land degradation/restoration along Indira Gandhi Canal command area in Jaisalmer District, Rajasthan, India: a case study[J],2019,78(15).
APA	Sur, Koyel,&Chauhan, Prakash.(2019).Dynamic trend of land degradation/restoration along Indira Gandhi Canal command area in Jaisalmer District, Rajasthan, India: a case study.ENVIRONMENTAL EARTH SCIENCES,78(15).
MLA	Sur, Koyel,et al."Dynamic trend of land degradation/restoration along Indira Gandhi Canal command area in Jaisalmer District, Rajasthan, India: a case study".ENVIRONMENTAL EARTH SCIENCES 78.15(2019).