Design of Index System for Performance Evaluation of Nature Reserve: A Case Study of Longwan National Nature Reserve in Jilin Province.Zhen Xi, Journal of Northeast Forestry University, 2008, 36.自然保护区绩效评价指标体系的设计_以吉林龙湾国家级自然保护区为例,郑昕,东北林业大学学报,2008,36(8)