基于土地利用变化的滁州市景观生态风险评价  

Landscape Ecological Risk Evaluation of Chuzhou City Based on Land Use Change

作　　者：王浩 彭俊 王杰[1] WANG Hao;PENG Jun;WANG Jie(College of Resource and Environmental Engineering,Anhui University,Hefei 230000,China;College of Geographic Information and Tourism,Chuzhou College,Chuzhou 239000,China)

机构地区：[1]安徽大学资源与环境工程学院,安徽合肥230000 [2]滁州学院地理信息与旅游学院,安徽滁州239000

出　　处：《洛阳理工学院学报(自然科学版)》2025年第1期7-14,共8页Journal of Luoyang Institute of Science and Technology:Natural Science Edition

基　　金：安徽省高等学校科研计划项目(2022AH040155);滁州市科技计划项目(2021ZD010);滁州学院“劳动教育示范教学团队”(2022LDTD03).

摘　　要：以2000—2020年滁州市多期土地利用数据为基础,利用景观干扰度和景观脆弱度作为景观指标,构建滁州市景观生态风险评估模型,并采用统计和空间自相关等方法,揭示滁州市景观生态风险的时空演变特征及生态风险的空间聚类形态。结果表明:滁州市土地利用类型以耕地为主,占总面积65%以上,2000—2020年耕地面积减少了32576.8 hm^(2),新增建设用地30494.8 hm^(2);20年间土地利用变化各异,耕地转出面积最大,为65743.2 hm^(2),建设用地转入面积最大,为51352.8 hm^(2);2000—2020年滁州市景观生态风险等级以中风险为主,占滁州市面积40%以上;2000年、2005年、2010年、2015年和2020年滁州市景观生态风险的全局莫兰指数分别为0.417、0.414、0.391、0.393和0.413,呈现出低-低集聚和高-高集聚为主的空间分布格局,空间自相关程度先减少后增加。Based on the multi-period land use data of Chuzhou City from 2000 to 2020,a landscape ecological risk assessment model for Chuzhou City is proposed by using the degree of landscape disturbance and the degree of landscape fragility as the landscape indicators.Statistics and spatial autocorrelation are employed to reveal the spatial and temporal evolutionary characteristics of the landscape ecological risk in Chuzhou City and the spatial clustering pattern of the ecological risk.The results show the following:(1)Land use type in Chuzhou City is dominated by arable land,accounting for more than 65%of the total,and the area of arable land decreased by 32576.8 hm^(2)from 2000 to 2020,and the new construction land increased by 30494.8 hm^(2).(2)The land use has changed during the 20 years,and the arable land transferred out is as large as 65743.2 hm^(2),and the construction land transferred in reaches 51352.8 hm^(2).(3)The ecological risk level of the landscape in Chuzhou City from 2000 to 2020 was dominated by medium risk,accounting for more than 40%of the city area.(4)The global Moran indexes of landscape ecological risk in Chuzhou City in 2000,2005,2010,2015 and 2020 were 0.417,0.414,0.391,0.393 and 0.413,respectively,showing a spatial distribution pattern dominated by low-low agglomeration and high-high agglomeration,and the spatial autocorrelation decreases first and then increases.

关 键 词：土地利用变化 景观生态风险 莫兰指数 空间自相关 

分 类 号：X171.1[环境科学与工程—环境科学]