干旱区生态环境知识资源中心(Arid): Land Degradation in Bihar, India: An Assessment Using Rain-Use Efficiency and Residual Trend Analysis

Arid

DOI	10.1007/s40003-020-00514-y
	Land Degradation in Bihar, India: An Assessment Using Rain-Use Efficiency and Residual Trend Analysis
	Radda, Ibrahim Abubakar; Kumar, B. Mohan; Pathak, Prasad
通讯作者	Radda, IA (corresponding author), Nalanda Univ, Sch Ecol & Environm Studies, Nalanda, Bihar, India.
来源期刊	AGRICULTURAL RESEARCH
ISSN	2249-720X
EISSN	2249-7218
出版年	2021
英文摘要	Land degradation, a major environmental problem, poses threats to agricultural, social and economic stability of many regions of the world. In India, similar to 37% of the total land area is estimated to be degraded. Although assessment of land degradation in arid and semiarid regions of India has advanced through remote sensing time-series analysis such as rain-use efficiency (RUE) and residual trend analysis (RESTREND), the sub-humid and other regions mostly remain unexplored in this respect. In this study, land degradation in Bihar, a sub-humid state, was quantitatively assessed through RUE and RESTREND from 1995 to 2011. RUE is the ratio of aboveground net primary productivity to precipitation and has been widely used as a measure of land degradation. RESTREND, on the other hand, examines the trend of NDVI residuals, which is the difference between observed NDVI and predicted NDVI from rainfall data. Results indicate that RESTREND effectively estimated the extent of human-induced land degradation in Bihar as 4.73 M ha. Agro-climatic zone IIIB, the driest zone, has the highest percentage of degraded lands (33%), while Zone IIIA has the lowest percent of degraded lands (17%). Zones I and II each account for 25% of the degraded lands, most of which are affected by waterlogging and salinity. Although other land degradation databases have also indicated a rapid increase in land degradation across Bihar, it needs more ground-based data collection to substantiate it. The problem, however, may further aggravate with global warming, which calls for policy interventions such as adopting agroforestry, practicing sustainable agriculture and making shifts in cropping patterns.
英文关键词	Sub-humid zone NDVI Water logging Salinity Agroforestry
类型	Article ; Early Access
语种	英语
收录类别	ESCI
WOS记录号	WOS:000604530600001
WOS关键词	DESERTIFICATION ; VEGETATION ; NDVI ; RAJASTHAN ; DROUGHT ; GIMMS
WOS类目	Agronomy
WOS研究方向	Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/352999
作者单位	[Radda, Ibrahim Abubakar] Nalanda Univ, Sch Ecol & Environm Studies, Nalanda, Bihar, India; [Kumar, B. Mohan] Kerala Agr Univ, Coll Forestry, KAU PO, Trichur 680656, Kerala, India; [Pathak, Prasad] FLAME Univ, FLAME Sch Liberal Educ, Dept Phys & Nat Sci, Pune, Maharashtra, India
推荐引用方式 GB/T 7714	Radda, Ibrahim Abubakar,Kumar, B. Mohan,Pathak, Prasad. Land Degradation in Bihar, India: An Assessment Using Rain-Use Efficiency and Residual Trend Analysis[J],2021.
APA	Radda, Ibrahim Abubakar,Kumar, B. Mohan,&Pathak, Prasad.(2021).Land Degradation in Bihar, India: An Assessment Using Rain-Use Efficiency and Residual Trend Analysis.AGRICULTURAL RESEARCH.
MLA	Radda, Ibrahim Abubakar,et al."Land Degradation in Bihar, India: An Assessment Using Rain-Use Efficiency and Residual Trend Analysis".AGRICULTURAL RESEARCH (2021).