TY - Journal of Resources and Ecology A1 - LU Xiaobo, CHEN Xiaoying T1 - Analysis of Obstacles to Sustainable Development of Ecotourism in Nature Reserves: A Field Investigation of Three National Na-ture Reserves in Liaoning Province Y1 - 2020-01-30 00:00:00.0 JF - Journal of Resources and Ecology JO - Journal of Resources and Ecology SP - 50 EP - 58 VL - 11 IS - 1 UR - {https://www.jorae.cn/EN/10.5814/j.issn.1674-764x.2020.01.005} N1 - 10.5814/j.issn.1674-764x.2020.01.005 ER -