Liu Fang, Zhang Qian, Wang Jinliang, Liu Yuexiong, Wang Wanbin, Li Sen
Faculty of Geography Yunnan Normal University Kunming China.
Yunnan Academy of Ecological and Environmental Sciences Kunming Yunnan China.
Ecol Evol. 2024 Aug 9;14(8):e70131. doi: 10.1002/ece3.70131. eCollection 2024 Aug.
With the rapid development of population, society and economy, human activities have caused serious adverse impacts on the environment, ecosystems and landscape patterns over the long term. In order to address the series of impacts of human activities on the environment, territorial space and resource use, the study of Production-Living-Ecological Space (PLES) and ecological security have all become academic frontiers in the field of sustainable development. In this study, we applied multi-source data and GIS technology to construct an ecological security evaluation model based on the results of PLES delineation and the Pressure-State-Response (PSR) framework, and carried out the three-period PLES ecological security evaluation for 2000, 2010 and 2020 at the county and grid scales in Yunnan Province. The PLES pattern in Yunnan Province is dominated by ecological space, which accounts for 75%, followed by 23% of production space, with ecological space shrinking from 2000 to 2020. Ecological security in ecological space and living space shows an improving trend from 2000 to 2020. The ecological security of production space improved in 2010 compared to 2000 but then showed a decreasing trend in 2020. Ecological security in ecological space shows that north-western and southern Yunnan is safer than central Yunnan, while ecological security in living space is safer in central Yunnan, and ecological security in production space is better in southern Yunnan than in northern Yunnan. Comparison with related research results shows that the ecological security evaluation results of PLES in Yunnan Province in this study are scientific and reasonable. The ecological security evaluation model of PLES constructed in this study solves the problem of complex and incomplete ecological security evaluation indexes in the past, and the results of the study are more refined and precise, which provides new ideas for the study of regional ecological security.
随着人口、社会和经济的快速发展，长期以来人类活动对环境、生态系统和景观格局造成了严重的不利影响。为应对人类活动对环境、国土空间和资源利用的一系列影响，生产-生活-生态空间（PLES）研究和生态安全研究均成为可持续发展领域的学术前沿。本研究应用多源数据和GIS技术，基于PLES划定结果和压力-状态-响应（PSR）框架构建生态安全评价模型，并在云南省县级和网格尺度上对2000年、2010年和2020年进行了三期PLES生态安全评价。云南省的PLES格局以生态空间为主，占比75%，其次是生产空间，占23%，生态空间在2000年至2020年期间呈缩减趋势。2000年至2020年，生态空间和生活空间的生态安全呈改善趋势。生产空间的生态安全在2010年较2000年有所改善，但在2020年呈下降趋势。生态空间的生态安全表明，滇西北和滇南比滇中更安全，而生活空间的生态安全在滇中更安全，生产空间的生态安全在滇南比滇北更好。与相关研究结果对比表明，本研究中云南省PLES生态安全评价结果科学合理。本研究构建的PLES生态安全评价模型解决了以往生态安全评价指标复杂且不完整的问题，研究结果更加细化和精确，为区域生态安全研究提供了新思路。
