Hetao irrigating area of Inner Mongolia is a major irrigated area in the upper reaches of the Huanghe(Yellow) River. Affected by arid climate and special hydrogeology, with unfavorable drainage networks, underground water table rises to and above critical depth, which leads to salinity and waterlogging. It is necessary for Hetao irrigating area to undergone the water-saving and modification project for salinity and waterlogging controlling. In the Hetao irrigating area by quantitatively assessing the input and output of water and salinity, it has been calculated that saline accumulation reaches 1.6826?106t annually. The desert or fallow areas in the Hetao irrigating area have the function of salts accumulation with the aid of evaporation to prevent the cultivated land from salinity, and these salts accumulation accounts for 65% of the salts that are introduced to irrigated land with the irrigation water from the Huanghe River, which are also much more than the amount of salts drainage to the Wuliangshu Lake. The dry drainage technique should be developed for the controlling of salinity and waterlogging in Hetao irrigating area. It has also been shown that adjusting planting structure to growing salt-tolerant native and introducing species for grazing and forage use could improve profitability of more saline soils, promote fertile procession, restrain the effect of salt in the arable land.
WANG Xue-Quan, GAO Qian-Zhao, LU Qi, LI Bin
. Salt-water Balance and Dry Drainage Desalting in Hetao Irrigating Area, Inner Mongolia[J]. SCIENTIA GEOGRAPHICA SINICA, 2006
, 26(4)
: 455
-460
.
DOI: 10.13249/j.cnki.sgs.2006.04.455
[1] 熊 毅.灌区土壤盐渍化原因及防治[J]. 科学通报,1960,(3):85~87.
[2] 石元春. 盐渍土的水盐运动[M]. 北京:农业大学出版社,1996.30~37.
[3] 王伦平,陈亚新,曾国芳.内蒙古河套灌区灌溉排水与盐碱化防治[M]. 北京:水利电力出版社,1993.
[4] W H Molen. Drainage principles and applications[M]. P.O.box 45 Wageningen the Netherlands: International institute for land reclamation and improvement,1973. 63-77.
[5] Gowing J W, Wyseure. Dry drainage: a sustainable and cost-effective solution to water logging and salinization?. B Yaron. Proc. 5th International Drainage Workshop, Vol. III. Lahore:Pakistan: IWASRUICID,1992.
[6] Nabil Khouri. Potential of drainage for controlling soil salinity[J]. Can. J. Civ. Eng,1998, 25(2):195-205.
[7] M T Kaddah, J D Rhoades. Salt and water balance in imperial valley[M]. California, Soil Sci. Soc. Amer. Proc., 1970. 40,93-100.
[8] Sheldon G B. 美国西部地区的灌溉回归水问题. 见:中国科学院自然资源综合考察委员会情报室.干旱地区土地利用问题译丛(二)[M]. 北京:农业出版社,1981. 44~52.
[9] Szabolcs. Salt Balance and Salt Transport processes in irrigated soil. International Congress of Soil Science. Transactions of 9th international congress of soil Science. Adelaide, Australia: Soil Science Press,1968. 491-502.
[10] 王亚东,樊忠成,李新民,等.河套灌区节水改造工程实施前后盐分匀衡分析[J].内蒙古水利,2001,(2):16~18.
[11] 王学全,卢 琦,高前兆.内蒙古河套灌区引用黄河水量分析[J].干旱区研究,2005,22(2):146~151.
[12] Szabolcs. Soil and hydrologic surveys for the prognosis and monitoring of salinity and alkalinity, Prognosis of salinity and alkalinity[M]. Rome, Italy: FAO Soils Bulletin 31, 1976. 119-130.
[13] 吴 凯,黄荣金.黄淮海平原水土资源利用的可持续性评价、开发潜力及对策[J].地理科学,2001,21(5):390~395.
[14] 李取生,王志春,李秀军. 苏打盐渍土壤微咸水淋洗改良技术研究[J].地理科学,2002,22(3):341~347.
[15] 宋长春,邓 伟,李取生,等. 松嫩平原西部土壤次生盐渍化防治技术研究[J].地理科学,2002,22(5):604~608.
[16] 宋新山,何 岩,汪永辉. 水土化学理论在松嫩平原盐渍土研究中的应用[J].地理科学,2003,23(1):72~76.
[17] 张甲珅,曹 军,陶 澍. 土壤水溶性有机物吸着系数及其影响因素研究[J].地理科学,2001,21(5):423~427.
[18] 王 卫,李秀彬. 中国耕地有机质含量变化对土地生产力影响的定量研究[J].地理科学,2002,22(1):24~28.
