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武陵山区景观生态风险评价及分区

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结合风险分区的景观生态风险评价作为国土资源空间优化配置与生态资源管理决策设计的综合手段,为量化区域生态风险状况和提出相应的对策提供了新视角.基于2000年、2010年和2020年土地利用数据,通过ArcGIS和Fragstats等软件对武陵山区景观生态风险进行评价和分区.结果表明,武陵山区优势景观类型为林地、耕地,土地利用类型变化较大;武陵山区景观生态风险平均值在0.07左右,整体处于较低水平,呈现西、中、东三级阶梯式分布模式;景观生态风险下降区集中在西部,上升区集中在东部;景观生态风险分布有明显的聚集效应,但聚集效应呈减弱趋势.基于此,将武陵山区划分为4个风险区并提出管理性意见:高风险区重在修复、中风险区封山育林、较低风险区发展生态旅游、低风险区重在保护.
Landscape Ecological Risk Assessment and Zoingin Wuling Mountain Area
Landscape ecological risk assessment combined with risk zoning,as a comprehensive means of spatial optimal allocation of land resources and ecological resource management decision-making design,provides a new perspective for quantifying regional ecological risk status and proposing corresponding countermeasures.Based on the land use data of 2000,2010 and 2020,the landscapecological risk of Wuling Mountain area was evaluated and partitioned by ArcGIS and Fragstats software.The results are as follows.The average value of landscape ecological risk in Wuling Mountain Area is about 0.07,which is at a low level as a whole,and presents a three-level ladder distribution pattern of west,middle and east.Cultivated land and forest land are the dominant landscapes in Wuling mountain area,and the impervious surface area expands rapidly.The decrease area of landscape ecological risk is concentrated in the west,and the increase area is concentrated in the east.The distribution of landscape ecological risk has obvious aggregation effect,but the aggregation effect is getting weaker and weaker.Based on this,Wuling Mountain is divided into four risk areas and management suggestions are given:high-risk areas focus on restoration,medium-risk areas close hillsides for afforestation,lower-risk areas develop ecotourism,and low-risk areas focus on protection.

landscape ecological riskecological risk indexrisk zoningWuling mountain aera

刘澳、刘慧、袁滈、汤弟伟

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生物资源保护与利用湖北省重点实验室,湖北恩施 445000

景观生态风险 生态风险指数 风险分区 武陵山区

2024

科技和产业
中国技术经济学会

科技和产业

影响因子:0.361
ISSN:1671-1807
年,卷(期):2024.24(20)