Vegetable niche of different enclosure measures in Yanchi county, Ningxia
CHENG Zhongqiu, ZHANG Kebin, CHANG Jin, LIU Jian, WANG Lili
Ecology and Environmental Sciences . 2010, (7): 1537 -1542 .  DOI: 10.16258/j.cnki.1674-5906(2010)07-1537-06

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