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Changes of saline-alkali land in Northeast China and its causes since the mid-1950s
ZHANG Shu-wen, YANG Jiu-chun, LI Ying, ZHANG Yang-zhen, CHANG Li-ping . Changes of saline-alkali land in Northeast China and its causes since the mid-1950s[J]. JOURNAL OF NATURAL RESOURCES, 2010 , 25(3) : 435 -442 . DOI: 10.11849/zrzyxb.2010.03.009
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