摘要
以长江中下游的合肥市为研究区,使用RSEI模型对合肥市1981年-2016年的ENSO事件前后生态环境进行评价,获取对应ENSO时序的生态环境变化,最后通过拟合ENSO指数与区域综合生态变化值的数学关系,分析ENSO对区域生态环境的影响模式。结果显示,合肥市1981年-2016年的各次ENSO事件前后,生态环境综合变化基本为负值,其中植被覆盖度较低的区域变化最为明显,ENSO对研究区的生态环境变化的相关系数为0.802,拟合为二次多项式的拟合优度为0.7。因此,提高植被覆盖度可减弱ENSO对生态环境的不利影响。
Taking Hefei City in the middle and lower reaches of the Yangtze River as the research area,this paper evaluates the ecological environment of Hefei City before and after ENSO events from 1981 to 2016 by using RSEI model,and obtains the corresponding eco-environmental changes of ENSO time series.Finally,by fitting the mathematical relationship between ENSO index and regional comprehensive ecological change value,the impact model of ENSO on regional ecological environment is analyzed.The results show that the comprehensive changes of eco-environment in Hefei City before and after each ENSO event from 1981 to 2016 are basically negative,and the regional changes with low vegetation coverage are the most obvious.The impact of ENSO on eco-environment changes in the study area can be fitted as a quadratic polynomial,and the goodness of fit is 0.7.Therefore,increasing vegetation coverage can reduce the adverse effects of ENSO on the ecological environment.
作者
王万里
朱晓春
何晓玉
李晓佳
曾特林
Wang Wanli;Zhu Xiaochun;He Xiaoyu;Li Xiaojia;Zeng Telin(School of Environmental and Resource Sciences,Southwest University of Science and Technology,Mianyang 621000,China)
出处
《山西建筑》
2022年第3期6-9,40,共5页
Shanxi Architecture
基金
西南科技大学大学生创新创业训练计划项目(S202010619063)
西南科技大学素质类教改项目(青年发展研究)(20szjg01)
四川省科技计划项目(2020YFS0389)。
关键词
ENSO
生态环境评价
生态变化预测
ENSO
ecological environment assessment
ecological change prediction
