Special Column:Celebration of the 70th Anniversary of IGSNRR, CAS

Research on "Sand-covered Reclaimed Crop Land" of Alkali-saline Soil

  • 1. Northeast Institute of Geography and Agroecology, CAS, Changchun 130012, China;
    2. a. School of life Science, b. School of Urban and Environmental Sciences, Northeast Normal University, Changchun 130024, China

Received date: 2010-09-25

  Revised date: 2011-01-05

  Online published: 2011-06-20


In order to reclaim alkali-saline land, we mixed the sandy soil to alkali-saline soil, then evaluated the chemical parameters of mixed soil and the crop seedling response under such grow condition. Sandy land in Horqin, alkali-saline land in Songnen Plain and Liaohe Plain besides watershed ridge of Songnen Plain watershed and Liaohe Plain watershed interlaced and overlapped in mosaic distribution, with an overlapping area up to 3.5 million hm2. It has the potential to be reclaimed as crop land of one million hm2. When 40%-60% of sandy soil was mixed, the salt content which indicated by EC reduced 20%-50%, and ESP reduced 40%-60%. The mixed soil could adapt to many crop's growth, such as corn, sunflower, etc. It is feasible to use sand-covered reclaimed crop land in the study area from theoretical and practical aspect.

Cite this article

ZHOU Dao-wei, TIAN Yu, WANG Min-ling, SONG Yan-tao, ZHANG Zheng-xiang . Research on "Sand-covered Reclaimed Crop Land" of Alkali-saline Soil[J]. JOURNAL OF NATURAL RESOURCES, 2011 , 26(6) : 910 -918 . DOI: 10.11849/zrzyxb.2011.06.002


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