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PRELIMINARY RESEARCH ON THE NECESSITY AND POSSIBILITY OF DEVELOPING ECOLOGICAL AGRICULTURE IN GONGHE BASIN, QINGHAI PROVINCE
Shao Liye, Dong Guangrong, Jin Jun, Gao Shangyu
JOURNAL OF NATURAL RESOURCES . 1988, (2): 130 -140 .  DOI: 10.11849/zrzyxb.1988.02.004