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【摘 要】
：
There is plenty of forests in Northeast China which contributes a lot to the conservation of water and land resources, produces timber products, and provides ha
【机 构】
：
Institute of Geographic and Natural Resources Research,Center for Chinese Agricultural Policy,Gradua
【出 处】
：
地理学报（英文版）
【发表日期】
：
2004年期
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