甘肃省农业生态系统能值演变与趋势
孙会慧, 石培基, 潘竟虎, 杨 勃, 刘海猛
Emergy Evolution and Trends Analysis on Agricultural Ecological System in Gansu Province
SUN Hui-hui, SHI Pei-ji, PAN Jing-hu, YANG Bo, LIU Hai-meng
中国沙漠
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2013, (4): 1273
-1280
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DOI: 10.7522/j.issn.1000-694X.2013.00179