干旱区生态环境知识资源中心(Arid): Estimating Water Balance of Small Reservoirs in Arid Regions: A Case Study from Kachchh, India

Arid

DOI	10.1007/s40003-016-0243-5
	Estimating Water Balance of Small Reservoirs in Arid Regions: A Case Study from Kachchh, India
	Machiwal, Deepesh; Dayal, Devi; Kumar, Sanjay
通讯作者	Machiwal, D
来源期刊	AGRICULTURAL RESEARCH
ISSN	2249-720X
EISSN	2249-7218
出版年	2017
卷号	6 期号:1 页码:57-65
英文摘要	Quantification of hydrological processes is necessary for management of small reservoirs especially in arid regions characterized by hot climate, scanty rainfall magnitudes and large rainfall variability. This study focuses on estimating inflow and outflow components of a small reservoir situated in arid Kachchh region of Gujarat, India, by developing a water balance model. Daily reservoir water levels were monitored for years 2012 and 2013. All water balance components, i.e. rainwater directly falling into reservoir, surface runoff, irrigation extractions, and evaporation and percolation, were either measured or estimated. Results indicated that rainfall has a fair control on amount of harvested runoff water. In year 2012, meagre rainfall (79 mm) could store 925 m(3) of water with 66 cm depth. In contrast, reservoir water levels were at 2.85 m depth in year 2013 with full capacity of 24,879 m(3) when rainfall totalled to 291 mm. The mean percolation rate (0.14 cm h(-1)), determined from 24-h long-term infiltration tests, revealed that full storage will get depleted within 85 days. A major portion (51%) of storage was lost through evaporation and percolation, and only 21% stored water could be utilized for supplemental irrigation. This finding suggested that suitable measures need to be adopted to check evaporation and seepage losses from the reservoirs in arid regions for improved agricultural productivity. Moreover, results of this study may be useful for water resources managers and decision-makers to develop appropriate operational strategies for the reservoirs in the study area as well as in other arid regions of the world.
英文关键词	Arid region Evaporation Percolation Small reservoir Water balance model Water levels
类型	Article
语种	英语
收录类别	ESCI
WOS记录号	WOS:000398133400006
WOS关键词	UPPER EAST REGION ; GROUNDWATER RECHARGE ; EVAPORATION ; SYSTEMS ; IRRIGATION ; GHANA
WOS类目	Agronomy
WOS研究方向	Agriculture
来源机构	ICAR Central Arid Zone Research Institute
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/332101
作者单位	[Machiwal, Deepesh; Dayal, Devi] ICAR Cent Arid Zone Res Inst, Reg Res Stn, Bhuj 370105, Gujarat, India; [Kumar, Sanjay] ICAR CAZRI, Krishi Vigyan Kendra, Bhuj 370105, Gujarat, India
推荐引用方式 GB/T 7714	Machiwal, Deepesh,Dayal, Devi,Kumar, Sanjay. Estimating Water Balance of Small Reservoirs in Arid Regions: A Case Study from Kachchh, India[J]. ICAR Central Arid Zone Research Institute,2017,6(1):57-65.
APA	Machiwal, Deepesh,Dayal, Devi,&Kumar, Sanjay.(2017).Estimating Water Balance of Small Reservoirs in Arid Regions: A Case Study from Kachchh, India.AGRICULTURAL RESEARCH,6(1),57-65.
MLA	Machiwal, Deepesh,et al."Estimating Water Balance of Small Reservoirs in Arid Regions: A Case Study from Kachchh, India".AGRICULTURAL RESEARCH 6.1(2017):57-65.