论文成果
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李晶,周自翔,任志远,Quantitative analysis of the dynamic change and spatial differences of the ecological security:a case study of Loess Plateau in northern Shaanxi Province:地理学报（英文版）,2006.4.1(16(2),251-256)
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李晶,任志远,周自翔,Ecological services and their value _A case study in Qinba Mountains of china:生态研究,2006.1.1((21),597-604)
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