%0 Journal Article
%T Experimental Study on the Impacts of the Irrigation Water Salinity on Cotton Growth in Manas River Oasis, Xinjiang<br>灌溉水矿化度对玛纳斯流域棉花生长影响的试验研究
%A 杨传杰
%A 罗毅
%A 孙林
%A 甘容
%A 吴娜
%A 张艳
%A 阿布都外力·吉力力
%J 资源科学
%D 2012
%I 
%X Oasis agriculture in northwest China has long been confronted with water resources shortage. Groundwater is abundant but it is usually saline water with salinity ranging from 1g/L to 5g/L or more. However, saline water is an important potential water source for oasis irrigation so the reasonable use of that salty water may play a vital role in easing the contradiction of oasis agricultural water in arid region. Field tests have been carried out to investigate the potential impacts of saline water with salinity levels of 0.87g/L, 2g/L, 3g/L, 4g/L, 6g/L, and 8g/L respectively on the trends of salt in soil water and cotton growth and its yield in the Manas River oasis in 2010 and 2011 growth seasons. Besides, soil salinity, cotton stems, leaves and balls were sampled in situ and then measured in the laboratory at weekly intervals. The results indicate that: 1) Salt accumulation increases with the salinity of irrigation water, and only a minor accumulation is found in case of water salinity of 2g/L or less; 2) The saline water has impacts on the growth and biomass accumulation of the cotton plants’stem, leaf, and especially the ball, and as a result, reduces the yield; 3)The higher the water salinity is, the more serious the impacts are. Increasing the irrigation water salt content by 1g/L will cause a cotton yield reduction of 391kg/ha, and increasing the soluble salt concentration in the 0-60 cm soil layer by 1g/L will cause a yield reduction of 861kg/ha; 4) With a water salinity of 2g/L, the maximum salt accumulation rate in 100cm soil layer has declined from 113.4% in 2010 to 26.0% in 2011. Moreover, only minor reductions in cotton yield are found in the case of water salinity of 2g/L, which may imply that 2g/L is a reference threshhold for the regulation and control of salt water use in this region.
%K Drip irrigation
%K Saline water
%K Soil salinity
%K Soil water
%K Cotton<br>滴灌
%K 咸水
%K 土壤盐分
%K 土壤水分
%K 棉花
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=B5EDD921F3D863E289B22F36E70174A7007B5F5E43D63598017D41BB67247657&cid=B47B31F6349F979B&jid=9DEEAF23637E6E9539AD99BE6ABAB2B3&aid=759CCD45607BE0D977FFC4E2A7D27554&yid=99E9153A83D4CB11&vid=339D79302DF62549&iid=E158A972A605785F&sid=36C49E1242CC2C7A&eid=06DAE5E1DF7D0B6A&journal_id=1007-7588&journal_name=资源科学&referenced_num=0&reference_num=27