干旱区生态环境知识资源中心(Arid): GIS-based assessment of non-equilibrium pattern between groundwater recharge and irrigation draft in a semi-arid region of Rajasthan, India

Arid

	GIS-based assessment of non-equilibrium pattern between groundwater recharge and irrigation draft in a semi-arid region of Rajasthan, India
	Bhadra Bidyut K; Kumar Sanjay; Paliwal Rakesh
来源期刊	Journal of Arid Land
ISSN	1674-6767
出版年	2016
卷号	8 期号:2 页码:184-196
英文摘要	Over-exploitation of groundwater for irrigation can result in drastic reduction in groundwater level in Jodhpur district of western Rajasthan, India. In this study, we used the long-term trend analysis of seasonal groundwater level data to predict the future groundwater scenario in 33 villages of Jodhpur district, assessed the impact of water harvesting structures on groundwater recharge and explored the non-equilibrium between groundwater recharge and irrigation draft in the study area. Analysis of groundwater level data from 26 observation wells in 33 villages in the pre-monsoon period showed that groundwater level decreased continuously at the rate of 2.07 m/a. With this declining rate, most of the tube wells (including the well with the maximum depth of 193 m) are predicted to become completely dry by 2050. Behavior of temporal groundwater level data in the study period (from 2004 to 2012) can be explained by different geospatial maps, prepared using ArcGIS software. Statistical analysis of the interpolated maps showed that the area with the maximum positive groundwater recharge occupied 63.14% of the total area during 2010-2011 and the area with the maximum irrigation draft accounted for 56.21% of the total area during 2011-2012. Higher groundwater recharge is attributed to the increase in rainfall and the better aquifer condition. Spatial distribution for the changes of average groundwater recharge and draft (2008-2009 and 2011-2012) showed that 68.50% recharge area was in positive change and 45.75% draft area was in negative change. It was observed that the area of the irrigation draft exceeded that of the groundwater recharge in most of the years. In spite of the construction of several shallow water harvesting structures in 2009-2010, sandstone aquifer zones showed meager impact on groundwater recharge. The best-fit line for the deviation between average groundwater fluctuation due to recharge and irrigation draft with time can be represented by the polynomial curve. Thus, over-exploitation of groundwater for agricultural crops has result in non-equilibrium between groundwater recharge and irrigation draft.
英文关键词	geographic information system groundwater fluctuation water harvesting structures Jodhpur district
类型	Article
语种	英语
开放获取类型	Bronze
收录类别	CSCD
WOS研究方向	History
CSCD记录号	CSCD:5626809
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/335606
作者单位	Bhadra Bidyut K, Regional Remote Sensing Centre, National Remote Sensing Centre, Indian Space Research Organisation, Department of Space, Jodhpur, 342003, India.; Paliwal Rakesh, Regional Remote Sensing Centre, National Remote Sensing Centre, Indian Space Research Organisation, Department of Space, Jodhpur, 342003, India.; Kumar Sanjay, Krishi Vigyan Kendra, Central Arid Zone Research Institute, Indian Council of Agricultural Research, Bhuj, 370105, India.
推荐引用方式 GB/T 7714	Bhadra Bidyut K,Kumar Sanjay,Paliwal Rakesh. GIS-based assessment of non-equilibrium pattern between groundwater recharge and irrigation draft in a semi-arid region of Rajasthan, India[J],2016,8(2):184-196.
APA	Bhadra Bidyut K,Kumar Sanjay,&Paliwal Rakesh.(2016).GIS-based assessment of non-equilibrium pattern between groundwater recharge and irrigation draft in a semi-arid region of Rajasthan, India.Journal of Arid Land,8(2),184-196.
MLA	Bhadra Bidyut K,et al."GIS-based assessment of non-equilibrium pattern between groundwater recharge and irrigation draft in a semi-arid region of Rajasthan, India".Journal of Arid Land 8.2(2016):184-196.