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JOURNAL OF DESERT RESEARCH  2013, Vol. 33 Issue (2): 590-596    DOI: 10.7522/j.issn.1000-694X.2013.00081
    
Effects of Irrigation with Water with Three Different Salinities on the Soil Environment in Minqin of Gansu, China
HUANG Cui-hua, XUE Xian, PENG Fei, YOU Quan-gang, WANG Tao
Key Laboratory of Desert and Desertification, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China
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Abstract  

The objective of this paper was to evaluate the effects of the irrigating water salinity on soil environment in the Minqin Oasis. Field work was carried out systematically in the Minqin Desert Control Station. The results showed that with the increase of the irrigating water salinity, the water consumption in the whole growing season, soil total porosity and organic matter decreased. The available water in the root zone and electric conductivity tends to increase due to the increase of the irrigating water salinity. When the irrigating water salinity was 0.8 g·L-1, the electric conductivity in the top layer of soil obviously decrease after harvest. On the contrary, the electric conductivity of soil in the low layer increased, suffesting that eluviation of freshwater irrigation was distinct. When the irrigating water salinity was 2.0 g·L-1, the irrigation lead to eluviation in the soil profile during the growing season, but the effect was not as obvious as the eluviation of freshwater, and after harvest the salt accumulation in the top layer was obvious. When the irrigating water salinity was 5.0 g·L-1, the electric conductivity increased in the 0-60 cm layer after harvest, and there was no obvious change in the 60-90 cm layer.

Key words:  Minqin      groundwater      soil moisture      soil porosity      soil electric conductivity     
Received:  17 April 2012      Published:  15 May 2012
ZTFLH:  S153  

Cite this article: 

HUANG Cui-hua, XUE Xian, PENG Fei, YOU Quan-gang, WANG Tao. Effects of Irrigation with Water with Three Different Salinities on the Soil Environment in Minqin of Gansu, China. JOURNAL OF DESERT RESEARCH, 2013, 33(2): 590-596.

URL: 

http://www.desert.ac.cn/EN/10.7522/j.issn.1000-694X.2013.00081     OR     http://www.desert.ac.cn/EN/Y2013/V33/I2/590

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