气候变化领域集成服务门户(CCPortal): Impacts of recent rainfall changes on agricultural productivity and water resources within the Southern Western Ghats of Kerala, India

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DOI	10.1007/s10661-023-12270-x
	Impacts of recent rainfall changes on agricultural productivity and water resources within the Southern Western Ghats of Kerala, India
	Lakshmi, R.; Thomas, Jobin; Joseph, Sabu
发表日期	2024
ISSN	0167-6369
EISSN	1573-2959
起始页码	196
结束页码	2
卷号	196 期号:2
英文摘要	Significant changes in rainfall patterns are critical to agriculture, and the dependency of cropping systems on rainfall variability would engender appropriate farming practices and agriculture policies for a climate-resilient agriculture system. This study analyses the significance of rainfall variability on agriculture productivity in the Wayanad district of Kerala (India) using time series data on rainfall (1989-2019) and crop yield (2000-2019). The spatial variability of rainfall patterns reveals a dichotomy between the rain gauge stations in the northern and southern parts of the region. Despite the absence of statistically significant trends in the monthly, seasonal and annual rainfall, based on the Mann-Kendall trend analysis, an increase in the yield of many crops (e.g., winter paddy, banana) is evident, which emphasises the critical role of irrigation in driving the crop productivity. As an adaptation strategy to changing rainfall patterns, irrigation would meet the additional crop water requirement for sustainable agricultural production under the varying rainfall distributions. However, the increase in the area under irrigation in recent years has had significant implications for both surface water and groundwater resources. The conclusive findings suggest that the region requires climate-resilient agriculture, focusing on optimising irrigation and developing sustainable agriculture and water conservation strategies.
英文关键词	Rainfall characteristics; Mann-Kendall; Agriculture yield; Wayanad; Spatial variability
语种	英语
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Environmental Sciences
WOS记录号	WOS:001137212600002
来源期刊	ENVIRONMENTAL MONITORING AND ASSESSMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/295414
作者单位	University of Kerala; Michigan Technological University
推荐引用方式 GB/T 7714	Lakshmi, R.,Thomas, Jobin,Joseph, Sabu. Impacts of recent rainfall changes on agricultural productivity and water resources within the Southern Western Ghats of Kerala, India[J],2024,196(2).
APA	Lakshmi, R.,Thomas, Jobin,&Joseph, Sabu.(2024).Impacts of recent rainfall changes on agricultural productivity and water resources within the Southern Western Ghats of Kerala, India.ENVIRONMENTAL MONITORING AND ASSESSMENT,196(2).
MLA	Lakshmi, R.,et al."Impacts of recent rainfall changes on agricultural productivity and water resources within the Southern Western Ghats of Kerala, India".ENVIRONMENTAL MONITORING AND ASSESSMENT 196.2(2024).