Evaluation on Groundwater Resources of Medium Salinity in Tarim Basin and Development and Demonstration of Under-mulch-drip Irrigation Technology for Cotton |
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Authors: | Qiao Li Jin-long Zhou Shun-jun Hu Bin-guo Wang Rui-liang Jia |
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Affiliation: | 1College of Water Conservancy and Civil Engineering, Xinjiang Agricultural University, Urumqi 830052, China;2Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China;3School of Environmental Science, China University of Geosciences, Wuhan 430074, China |
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Abstract: | The groundwater of medium salinity refers to the groundwater with a mineralization degree of 2-7 g/L that can be directly or indirectly used for irrigation. This paper determined the distribution area of the groundwater with medium salinity in Tarim Basin, estimated the total amount of recharge resources and exploitable quantity of the groundwater of medium salinity. The irrigation water quality assessment was conducted on the groundwater of medium salinity by using multiple factors and methods. The salt tolerance parameters and irrigation water mineralization control parameters of the cotton in under-mulch-drip irrigation were determined. The under-mulch-drip irritation technology for cotton in groundwater of medium salinity was developed and applied successfully to the demonstration area. The social, economic and ecological effects of this technology as well as the application prospect were analysed. This paper also puts forward two questions that need to be further studied |
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Keywords: | Tarim Basin Groundwater of medium salinity Under-mulch-drip irrigation for cotton |
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