干旱区生态环境知识资源中心(Arid): Revival of Traditional Cascade Tanks for Achieving Climate Resilience in Drylands of South India

Arid

DOI	10.3389/frwa.2021.639637
	Revival of Traditional Cascade Tanks for Achieving Climate Resilience in Drylands of South India
	Chinnasamy, Pennan; Srivastava, Aman
通讯作者	Chinnasamy, P (corresponding author), Indian Inst Technol, Ctr Technol Alternat Rural Areas, Mumbai, Maharashtra, India. ; Chinnasamy, P (corresponding author), Indian Inst Technol, Rural Data Res & Anal Lab, Mumbai, Maharashtra, India. ; Chinnasamy, P (corresponding author), Indian Inst Technol, Interdisciplinary Programme Climate Studies, Mumbai, Maharashtra, India.
来源期刊	FRONTIERS IN WATER
EISSN	2624-9375
出版年	2021
卷号	3
英文摘要	Traditional tanks in arid regions of India have been working to address water demands of the public for more than 2000 years. However, recent decade is witnessing growing domestic and agricultural water demand coupled with rising encroachment and ignorance toward tanks; consequently, intensifying water shortage issues. While climate change is impacting at alarming rates, local agencies have forgotten these tanks that have aided in sustainable water supply solutions for decades apart from municipal water supply. This research, for the first time, estimates water supply-demand for an arid region in South India (Madurai) and lists out the benefits if tanks were managed and desilted. Exploratory investigations for documenting seasonal domestic and agricultural unmet water demand were conducted followed by their validation through ground-truthing across the study period 2002-2019. Results indicated high unmet domestic water demand, estimating similar to 73% [maximum 365 thousand cubic meters (TCM)] for summer (March to May) and similar to 33% (maximum 149 TCM) for winter (January and February), and high unmet agricultural water demand estimating similar to 90% (maximum 5,424 TCM) during North-East monsoon (October to December), and similar to 95% (maximum 5,161 TCM) during South-West monsoon (June to September). Erratic rainfall pattern was identified as a major cause for higher fluctuations in water availability inside tanks ranging 0-50%, while lack of ownership resulted in increased siltation load ranging 30-70% of the tank's volume. The study found that the major portion of the unmet water demand can be accounted for through rehabilitation of the tanks, as under the rehabilitated tank irrigation scenario the tank storage could attain 200-400% more water than the estimated agricultural water demand. It was concluded that if the cascade tanks were managed appropriately, they could have positive impacts by reducing floods and providing water for drought seasons.
英文关键词	sustainable development groundwater tank cascade systems tank irrigation water security climate resilience arid watershed management
类型	Article
语种	英语
开放获取类型	gold
收录类别	ESCI
WOS记录号	WOS:000677589100001
WOS关键词	CHANGE ADAPTATION ; WATER-RESOURCES ; MANAGEMENT ; SECURITY ; CONSERVATION ; INSIGHTS ; REGION ; IMPACT
WOS类目	Water Resources
WOS研究方向	Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/363357
作者单位	[Chinnasamy, Pennan; Srivastava, Aman] Indian Inst Technol, Ctr Technol Alternat Rural Areas, Mumbai, Maharashtra, India; [Chinnasamy, Pennan] Indian Inst Technol, Rural Data Res & Anal Lab, Mumbai, Maharashtra, India; [Chinnasamy, Pennan] Indian Inst Technol, Interdisciplinary Programme Climate Studies, Mumbai, Maharashtra, India
推荐引用方式 GB/T 7714	Chinnasamy, Pennan,Srivastava, Aman. Revival of Traditional Cascade Tanks for Achieving Climate Resilience in Drylands of South India[J],2021,3.
APA	Chinnasamy, Pennan,&Srivastava, Aman.(2021).Revival of Traditional Cascade Tanks for Achieving Climate Resilience in Drylands of South India.FRONTIERS IN WATER,3.
MLA	Chinnasamy, Pennan,et al."Revival of Traditional Cascade Tanks for Achieving Climate Resilience in Drylands of South India".FRONTIERS IN WATER 3(2021).