Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.agwat.2018.02.016 |
Estimation of specific yield using water table fluctuations and cropped area in a hardrock aquifer system of Rajasthan, India | |
Chinnasamy, Pennan1; Maheshwari, Basant2; Dillon, Peter3; Purohit, Ramesh4; Dashora, Yogita4; Soni, Prahlad5; Dashora, Ragini4 | |
通讯作者 | Maheshwari, Basant |
来源期刊 | AGRICULTURAL WATER MANAGEMENT
![]() |
ISSN | 0378-3774 |
EISSN | 1873-2283 |
出版年 | 2018 |
卷号 | 202页码:146-155 |
英文摘要 | Assessment of specific yields is important for effective groundwater management in semi-arid hardrock aquifers, especially in India with its unsustainable groundwater usage rates. The Dharta watershed in the Udaipur district of Rajasthan is one such hardrock area in India where the groundwater extraction rate is a concern. In this study, we use groundwater balance analysis to estimate the specific yield (S-y) based on crop irrigation water use and changes in water table depths, during the irrigation season, to develop an understanding of the volume of groundwater recharge from pre and post monsoon water table depths and an understanding of the spatial and temporal changes in estimates of specific yield in the study area. The analysis used here estimates values at village scale (average area 3.65 km(2)) and is a technique compatible with the farmers monitoring of groundwater levels to facilitate local cooperative groundwater management. Five villages in the Dharta watershed in Rajasthan were selected and 50 wells per village were monitored for water table depth, at weekly intervals, over a two-year period. This resulted in a total of 250 wells in the study area and the monitoring was carried out by local farmer volunteers - called Bhujal Jankaars (BJs), a Hindi word meaning ’groundwater informed.’ Crop area coverage (with a total of 40 crops) was examined for two years in the study area. Estimates of S-y in the five villages were between 1.4 and 8%, resulting in values comparable with previous studies. The watershed area weighted average S-y was 3.8%. The method used in this study enabled estimates of recharge without needing a calibrated groundwater model in an area with sparse information on aquifer hydraulic characteristics and unreliable digital elevation maps. |
英文关键词 | Water balance method Water table fluctuation method Regional specific yield India Groundwater Hardrock aquifer system Semi-arid region |
类型 | Article |
语种 | 英语 |
国家 | Nepal ; Australia ; India |
收录类别 | SCI-E |
WOS记录号 | WOS:000428833300014 |
WOS关键词 | GROUNDWATER RECHARGE ; GUJARAT ; MANAGEMENT ; STORAGE |
WOS类目 | Agronomy ; Water Resources |
WOS研究方向 | Agriculture ; Water Resources |
来源机构 | Commonwealth Scientific and Industrial Research Organisation |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/207361 |
作者单位 | 1.Int Water Management Inst, GPO 8975 EPC 416, Kathmandu, Nepal; 2.Western Sydney Univ, Locked Bag 1797, Penrith, NSW 2751, Australia; 3.CSIRO Land & Water, Private Mail Bag 2, Glen Osmond, SA 5064, Australia; 4.Maharana Pratap Univ Agr & Technol, Udaipur, India; 5.Vidya Bhawan Krishi Vigyan Kendra, Udaipur, India |
推荐引用方式 GB/T 7714 | Chinnasamy, Pennan,Maheshwari, Basant,Dillon, Peter,et al. Estimation of specific yield using water table fluctuations and cropped area in a hardrock aquifer system of Rajasthan, India[J]. Commonwealth Scientific and Industrial Research Organisation,2018,202:146-155. |
APA | Chinnasamy, Pennan.,Maheshwari, Basant.,Dillon, Peter.,Purohit, Ramesh.,Dashora, Yogita.,...&Dashora, Ragini.(2018).Estimation of specific yield using water table fluctuations and cropped area in a hardrock aquifer system of Rajasthan, India.AGRICULTURAL WATER MANAGEMENT,202,146-155. |
MLA | Chinnasamy, Pennan,et al."Estimation of specific yield using water table fluctuations and cropped area in a hardrock aquifer system of Rajasthan, India".AGRICULTURAL WATER MANAGEMENT 202(2018):146-155. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。