Research on Ecological Restoration Strategies of Territorial Space based on Different Ecological Resilience Evaluation Methods—by Taking Dingbian County of Shaanxi Province as an Example
In this study,the level of ecological restorative capacity of Dingbian County,Shaanxi Province was calculated and analyzed by three evaluation methods,namely,ratio method,trend method,and index system assessment method.The results of the ratio method analysis showed that the southern part of Zhangyaoxian Town,Jiyuan Town and Xuezhuang Township had a higher tolerable disturbance intensity and a higher recovery amplitude after disturbance elimination.The trend method analysis showed that the ecosystem of Jiyuan Town,Fengdikeng Town,Zhangyaoxian Town,Xuezhuang Township,and the eastern part of Dingbian Street had a shorter time period for restoration.The results of the indicator assessment method showed that the ecological resilience levels of most townships in the south were above excellent,and the ecological resilience levels of the eastern part of Dingbian Street and the northern part of Zhuanjing Town were relatively higher.The analysis results of the three methods show that during 2001-2020,the ecological resilience of Dingbian County showed a trend of growth and optimization,however its overall level was relatively low,and it was highly depended on artificial intervention measures;in terms of the spatial distribution of the ecological resilience,the southern Baiyu Mountain area had significantly higher resilience intensity and is suitable for the use of conservation-based restoration measures,while the northwestern salt-lake wetland area should be the focus of artificial ecological restoration project deployment.Among the 19 townships(including street offices)in the county,4 townships are suitable for adopting the natural sealing and protection strategy,5 townships are suitable for adopting the engineering-assisted natural restoration strategy,8 townships are suitable for adopting the engineering ecological restoration strategy,and 2 townships are suitable for adopting the engineering ecological reconstruction strategy.The results of the study showed that there were differences in the results of different analytical methods,and comprehensive assessments can provide support for the selection of appropriate ecological restoration strategies.
ecological resilienceecological remediation strategiesevaluation methodecosystem qualityDingbian County
NETL
NSTL
万方数据
