2001-2019年中国自然保护区生态环境质量时空变化特征及其驱动力

Abstract

PDF HTML阅读 XML下载 导出引用 引用提醒 2001-2019年中国自然保护区生态环境质量时空变化特征及其驱动力 DOI: 10.5846/stxb202201200198 作者: 作者单位: 作者简介: 通讯作者: 中图分类号: 基金项目: 浙江省自然科学基金项目（LQ21D060001）；风云卫星先行计划项目（FY-APP-2021.0105）；新疆气象局科技创新发展基金项目（MS202128）；阿克苏地区气象局科技项目（AkS202210） Temporal and spatial variation characteristics and driving forces of eco-environmental quality in China's nature reserves from 2001 to 2019 Author: Affiliation: Fund Project: 摘要 | 图/表 | 访问统计 | 参考文献 | 相似文献 | 引证文献 | 资源附件 | 文章评论 摘要:自然保护区对维护生物多样性，改善生态环境质量具有重要作用。然而，我国自然保护区生态环境质量变化及其对自然因素与人类活动的响应规律还不清晰，理解这些规律对我国的生态文明建设以及生物多样性的保护具有重要意义。基于2001-2019年中国历史高分辨率生态环境质量数据CHEQ数据集以及自然因素，利用Theil-Sen Median趋势分析、Mann-Kendall检验以及多元回归残差分析等方法，探究了2001-2019年中国自然保护区的生态环境质量时空变化特征及其对自然因素与人类活动驱动因素的响应。结果表明：①我国自然保护区的CHEQ指数呈现多阶段波动变化，总体呈小幅度下降趋势，平均趋势率为-0.54×10-3/a；在空间上，中国自然保护区CHEQ变化趋势值呈"南高北低，东高西低"的分布格局；②自然因素与人类活动的共同作用是我国自然保护区生态环境质量恶化的主要原因，且恶化区域主要分布在自然保护区的实验区和缓冲区。其中自然因素对我国自然保护区生态环境质量变化的影响在-3×10-3/a-0/a之间，人类活动的影响在-1×10-3/a-2×10-3/a之间；③自然因素对我国自然保护区贡献率多在75%以上，人类活动对我自然保护区贡献率多在45%以下。在所选的自然因素里，降水因子对我国自然保护区的生态环境质量空间分布影响最大，地表径流量因子的影响最小。研究在弥补了现有研究不足的同时，有望未来为可持续发展中生态环境与经济社会协同发展研判提供科学的定量支撑，并为制定相应的政策提供科学依据。 Abstract:Nature reserves play an important role in maintaining biodiversity and improving ecological environment quality. It is not clear how the ecological environment quality in nature reserves changes and its response to the natural factors and human activities. Understanding these rules is of great significance to the construction of ecological civilization and the biodiversity protectionin China. Based on China's high-resolution eco-environmental quality (CHEQ) dataset and natural factors from 2001 to 2019, the changing patterns of the ecological environment quality of the nature reserves in China were investigated and the corresponding contributions of the main driving forces, natural factors and human activities to these changes were distinguished using the methods of trend analysis and multiple regression residuals analysis. The results showed as follows:① CHEQ index of nature reserves in China indicated multi-stage fluctuation change and an overall slightly decreasing trend, with an average trend rate of -0.54×10-3/a. Overall pattern of CHEQ was high in the south and east region and low in the north and west region. ② The combination of natural factors and human activities was mainly distributed in the experimental zone and buffer zone of the nature reserves and was the main factor of environmental degeneration. The impacts of natural factors on CHEQ change ranged from -3×10-3/a to 0/a, while the impacts of human activities changed from -1×10-3/a to 2×10-3/a. ③ The contribution rate of natural factors to CHEQ change in China's nature reserves was more than 75%, and the contribution rate of human activities to CHEQ change was less than 45%. Among the natural factors in this study, precipitation had the greatest impact on the ecological environment quality of China's nature reserves, while surface runoff factor had the least impact. While making up for the shortcomings of the existing studies, this work is expected to provide the quantified support on the coordination between ecological conservation and economic development in the future, and provide scientific knowledge for formulating the corresponding policies. 参考文献 相似文献 引证文献