栾城县农田生态系统服务功能正负效应综合评价

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元媛,刘金铜,靳占忠

An integrated assessment of positive and negative effects of high-yielding cropland ecosystem services in Luancheng County, Hebei Province of North China.

生态学杂志 . 2011, (12): 2809 -2814 .

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