北京山区森林资源监测存在的问题及对策建议—

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李凤华

Problems and Suggestions in Forest Resources Monitoring in Beijing Mountain Area-A Case Study in Yanqing, Beijing

林草资源研究 . 2015, (2): 45 -48 . DOI: 10.13466/j.cnki.lyzygl.2015.02.010