干旱区生态环境知识资源中心(Arid): Studying evidence of land degradation in the Indian Ganga River Basin-a Geoinformatics approach

Arid

DOI	10.1007/s10661-019-7694-7
	Studying evidence of land degradation in the Indian Ganga River Basin-a Geoinformatics approach
	Matin, Shafique; Behera, Mukunda Dev
通讯作者	Matin, S (corresponding author), TEAGASC, Food Res Ctr, D15KN3K, Dublin 15, Ireland.
来源期刊	ENVIRONMENTAL MONITORING AND ASSESSMENT
ISSN	0167-6369
EISSN	1573-2959
出版年	2019
卷号	191
英文摘要	Land degradation is a long-term loss of ecosystem function and productivity which takes place due to a wide variety of land processes, namely soil erosion, soil sodification, green-cover loss, and soil conditions such as soil infertility that leads to productivity loss. About 41% of the land in India is under different forms of land degradation in which a major part lies in the Indian Ganga River Basin (IGRB). In this work, we evaluated the evidence of land degradation in the IGRB by analyzing (i) the changes in the forest cover and land use (FCLU) between 1975 and 2010, (ii) forest fragmentation status for the same time period, and (iii) decline in rain-use efficiency (RUE) during 2000-2010. The FCLU-type mapping for the year 1975 and 2010 was carried out using 216 Landsat satellite scenes that derived 40 vegetation and 7 non-vegetation classes. The highest negative change (loss) was observed in the dry deciduous forest of mixed forest formation (4699.9 km(2)) and gregarious formation (1337.6 km(2)), and a major gain in settlement (5396.3 km(2)) and managed lands (3408.4 km(2)). An increase in forest fragmentation was observed in all the forest classes with the highest rise in the deciduous forest of the central basin. A consistent decline in RUE was observed highest in the South-Western semi-arid IGRB (0.02-0.15) that stretched up to the central basin. All the three analyses showed evidence of active land degradation in the form of green-cover loss, fragmented forests, and declined primary productivity with visual evidence for some of the severely degraded areas. The use of Geoinformatics to analyze land degradation using surface indicators is promising and provide possibilities of further improvements using better resolution data.
英文关键词	Landsat Ganga basin Forest fragmentation RUE Land degradation
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000514582900022
WOS关键词	RAIN-USE EFFICIENCY ; COVER CHANGES ; TIME-SERIES ; AREAS ; DESERTIFICATION ; FRAGMENTATION ; VEGETATION ; DYNAMICS ; PATTERNS ; FORESTS
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/2XILL650/369763
作者单位	[Matin, Shafique] TEAGASC, Food Res Ctr, D15KN3K, Dublin 15, Ireland; [Matin, Shafique; Behera, Mukunda Dev] IIT, Ctr Oceans Rivers Atmosphere & Land Sci CORAL, Kharagpur 721302, WB, India
推荐引用方式 GB/T 7714	Matin, Shafique,Behera, Mukunda Dev. Studying evidence of land degradation in the Indian Ganga River Basin-a Geoinformatics approach[J],2019,191.
APA	Matin, Shafique,&Behera, Mukunda Dev.(2019).Studying evidence of land degradation in the Indian Ganga River Basin-a Geoinformatics approach.ENVIRONMENTAL MONITORING AND ASSESSMENT,191.
MLA	Matin, Shafique,et al."Studying evidence of land degradation in the Indian Ganga River Basin-a Geoinformatics approach".ENVIRONMENTAL MONITORING AND ASSESSMENT 191(2019).