近14年广西生态系统健康时空变化特征

Temporalspatial changes of ecosystem health in Guangxi in the past 14 years

基于活力-组织力-恢复力(VOR)模型构建广西生态系统健康评价体系,对2006—2019年间的生态系统健康进行评价与分析。结果表明:近14年间研究区生态系统健康状况总体呈先下降后上升趋势,生态状况为健康的区域消失殆尽,但生态系统健康状况良好的地区环境有明显向好趋势,所占面积比年均上升0.7%,而生态系统健康状况一般的区域面积占比呈轻微下降趋势,年均下降0.39%。空间分布上表现为研究区生态系统健康状况总体呈现北部生态系统健康状况要优于南部地区。研究区生态系统健康状况由最开始较大程度下降后小幅度上升,生态系统健康状况向良好趋势发展,但环境问题仍应引起足够重视。

Based on the Vigour-Organization-Resilience Model(VOR),the ecological health assessment system of Guangxi was established to evaluate and analyze the ecosystem health from 2006 to 2019.The results show that ecological health in Guangxi declined first and then increased in the past 14 years.But areas with good ecological health status show a clear trend of improvement.The area proportion is 0.7%higher than the average,while areas with general ecological health declined slightly.Its annual decrease is 0.39%.The spatial distribution shows that the ecological health status of the study area is generally better in the north than in the south.The health of the e-cosystem in the study area declined to a large extent at the beginning and then increased slightly.The ecosystem health is developing well,but environmental issues should still be paid enough attention.