doi:

DOI: 10.3724/SP.J.1148.2011.00079

Arid Zone Research (干旱区研究) 2011/28:1 PP.79-84

Effects of Drip Irrigation Volume on Soil Water-salt Transfer and Its Redistribution


Abstract:
Because of the irrigation regime and natural factors, soil salinazation has become more and more severe in arid regions. A 3-year field experiment was carried out to investigate the effects of different drip irrigation regimes on soil salinity distribution and cotton yield at Aksu National Station for Farmland Ecosystem Scientific Research, Chinese Academy of Sciences. The results show that the distribution of soil salinity was affected by the redistribution of soil moisture content. Average soil moisture content was gradually increased in cotton growth season. The position of peak value of soil salinity under mulch was moved downward with the increases of drip irrigation volume, and it was moved vertically from 35 cm to 65 cm when the drip irrigation volume was increased from 3 000 m3/hm2 to 4 800 m3/hm2. The downward movement of the position of peak value of soil salinity under mulch was in an order of the treatment Ⅳ > treatment Ⅲ > treatment Ⅱ > treatment Ⅰ after irrigation, which reveals that the increase of drip irrigation volume could promote soil desalinization. Soil salinity was moved gradually from deep soil to topsoil and from the soil layer under mulch to the inter-mulch soil layer simultaneously. With the increase of drip irrigation volume, the average soil salt content was decreased in rhizosphere (0-40 cm in depth) at the end of experiment. The soil desalinization rates of the treatment Ⅰ, treatment Ⅱ, treatment Ⅲ and treatment Ⅳ were 2.5%, 7.7%, 9.7% and 15.8% respectively. Compared with the soil salinity in soil layer of 0-40 cm in depth, the average soil salt contents for all the treatments were increased in soil layer of 0-100 cm at the end of experiment, they were increased by 0.4 dS/m, 0.3 dS/m, 0.3 dS/m and 0.1 dS/m for the treatment Ⅰ, treatment Ⅱ, treatment Ⅲ and treatment Ⅳ, and their salinization rates were 9.3%, 6.8%, 6.7% and 2.6%, respectively. Therefore, high drip irrigation volume of 4 800 m3/hm2 could be the most suitable drip irrigation regime for leaching soil salinity under drip irrigation in silt loam soil in arid regions.

Key words:drip irrigation under mulch,water and salt transport,cotton,soil electric conductivity,Aksu,Xinjiang

ReleaseDate:2014-07-21 15:54:36



[1] 顾烈烽. 新疆生产建设兵团棉花膜下滴灌技术的形成与发展[J]. 节水灌溉, 2003(1): 27-29.[Gu Liefeng.Formation and development of cotton drip irrigation under mulch in the Xinjiang production and construction corps[J].Water Saving Irrigation, 2003(1): 27-29.]

[2] 李玉义, 逢焕成, 陈阜, 等. 膜下滴灌对风沙土盐分变化和棉花产量的影响[J]. 水土保持学报, 2009, 23(4): 96-100.[Li Yuyi, Feng Huancheng, Cheng Fu, et al.Effect of drip irrigation under plastic mulch on aeolian sandy soil salt dynamic and cotton yield[J].Journal of Soil and Water Conservation, 2009, 23(4): 96-100.]

[3] 殷波, 柳延涛. 膜下长期滴灌土壤盐分的空间分布特征与累积效应[J]. 干旱地区农业研究, 2009, 27(6): 228-231.[Yin Bo, Liu Yantao.Spatial distribution and accumulation pattern of soil salinity with long term drip irrigation under plastic mulching[J].Agricultural Research in the Arid Areas, 2009, 27(6): 228-231.]

[4] 王国清, 姜德华. 绿洲土地利用中沙漠化和盐渍化的问题与对策——以新疆为例[J]. 中国土地科学, 1991, 5(4): 24-28.[Wang Guoqing, Jiang Dehua.Problem and game of salinization and desertification in land usage of oasis[J].China Land Science, 1991, 5(4): 24-28.]

[5] 塔西甫拉提·特依拜, 张飞, 赵睿, 等. 新疆干旱区土地盐渍化信息提取及实证分析[J]. 土壤通报, 2007, 38(4): 625-630.[Tashpolat·Tiyip, Zhang Fei, Zhao Rui, et al.Selected methods and empirical analysis of extracting salinization information in the arid area of Xinjiang[J].China Land Science, 2007, 38(4): 625-630.]

[6] 张志新. 滴灌[M]. 乌鲁木齐: 新疆科技卫生出版社, 1992.[Zhang Zhixin.Drip Irrigation[M].Urumqi: Xinjiang Science and Technological Hygieism Press, 1992.]

[7] 赵成义, 闫映宇, 李菊艳, 等. 塔里木灌区膜下滴灌的棉田土壤水盐分布特征[J]. 干旱区地理, 2009, 32(6): 892-898.[Zhao Chengyi, Yan Yingyu, Li Juyan, et al.Distributed characteristics of soil water-salt of cotton field under drip irrigation under mulching in Tarim irrigated area[J].Arid Land Geography, 2009, 32(6): 892-898.]

[8] 王全九, 王文焰, 汪志荣. 盐碱地膜下滴灌技术参数的确定[J]. 农业工程学报, 2001, 17(2): 47-50.[Wang Quanjiu, Wang Wenyan, Wang Zhirong.Determination of technique parameters for saline—Alkali soil through drip irrigation under film[J].Transactions of the Chinese Society of Agricultural Engineering, 2001, 17(2): 47-50.]

[9] 吕殿青, 王全九, 王文焰, 等. 膜下滴灌水盐运移影响因素研究[J]. 土壤学报, 2002, 39(6): 794-801.[Lü Dianqing, Wang Quanjiu, Wang Wenyan, et al.Factors affecting soil water movement and solute transport for film drip irrigation [J].Acta Pedologica Sinica, 2002, 39(6): 794-801.]

[10] 徐力刚, 杨劲松, 徐南军, 等. 农田土壤中水盐运移理论与模型的研究进展[J]. 干旱区研究, 2004, 21(3): 254-258.[Xu Ligang, Yang Jinsong, Xu Nanjun, et al.Progress of the study on theories and models of water-salt transport in cultivated soil [J].Arid Zone Research, 2004, 21(3): 254-258.]

[11] 刘春卿, 杨劲松, 陈小兵, 等. 滴灌流量对土壤水盐运移及再分布的作用规律研究[J]. 土壤学报, 2007, 44(6): 1 016-1 021.[Liu Chunqing, Yang Jinsong, Chen Xiaobing, et al.Movement and redistribution of water and salt in relation to emitter discharge rate[J].Acta Pedologica Sinica, 2007, 44(6): 1 016-1 021.]

[12] 张江辉, 王全九, 姚新华, 等. 新疆葡萄滴灌技术参数对土壤水盐分布特征的影响[J]. 干旱区研究, 2008, 25(5): 679-682.[Zhang Jianghui, Wang Quanjiu, Yao Xinhua, et al.Analysis on the effects of technical parameters of grape drip irrigation on soil salt content distribution in arid areas of Xinjiang[J].Arid Zone Research, 2008, 25(5): 679-682.]

[13] Yin Chuanhua, Feng Gu, Zhang Fusuo, et al.Enrichment of soil fertility and salinity by tamarisk in saline soils on the northern edge of the Taklamakan Desert[J].Agricultural Water Management, 2009, 68: 1-17.

[14] Bezborodov G A, Shadmanov D K, Mirhashimov R T, et al.Mulching and water quality effects on soil salinity and sodicity dynamics and cotton productivity in Central Asia[J].Agriculture, Ecosystems and Environment, 2010, 138: 95-102.

[15] Hou Xiaoyan, Wang Fengxin, Han Jiangjiang, et al.Duration of plastic mulch for potato growth under drip irrigation in an arid region of Northwest China[J].Agricultural and Forest Meteorology, 2010, 150: 115-121.

[16] 顾峰雪, 施庆东, 张远东, 等. 准噶尔盆地南缘阜康绿洲水盐空间特征的初步分析[J]. 新疆大学学报: 自然科学版, 2002, 19(1): 117-122.[Gu Fengxue, Shi Qingdong, Zhang Yuandong, et al.Primary analysis of underground water, soil water and salt content in Fukang oasis in Southern Zhungar Basin[J].Journal of Xinjiang University: Natural Science Edition, 2002, 19(1): 117-122.]

[17] 李韵珠, 李保国. 土壤溶质运移[M]. 北京: 科学出版社, 1998.[Li Yunzhu, Li Baoguo.Soil Solute Movement[M].Beijing: Science Press, 1998.]

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