摘要
为了研究矿产资源开发利用对所在区域景观格局的影响,运用遥感图像解译和GIS分析的方法,在拼块尺度和景观尺度构建区域景观格局评价指标体系。结果表明:项目的实施主要集中于对林地、灌木林地、疏林地和天然草地的影响;拼块尺度上表现为景观比例的减少、拼块数量的增加、景观密度的降低、距离指数和分离度增大和平均拼块面积变小;景观尺度上表现为景观多样性和破碎度的增加,景观优势度的降低。新增的建筑用地增加了原有景观的均匀性、连通性和异质性,但研究区域的生态功能和完整性并没有发生质的变化,仍在生态系统调节范围内,林地和天然草地仍是所在区域的主要景观类型,仍能发挥其动态调控作用。
In order to study the effects of mineral resources exploitation on regional landscape patterns,evaluation index system of regional landscape patterns were constructed in plaque and landscape scale using the method of sensing image interpretation and GIS analysis.The results indicated that the effects of project implementation mainly focused on forest land,shrub land,open forest land and natural grassland;in plaque scale,landscape proportion and landscape density decreased,patch numbers,distance index and resolution increased,while average patch area became smaller;in landscape scale,landscape diversity and fragmentation degree increased,while landscape dominance decreased.Newly added building sites increased uniformity,connectivity and heterogeneity of original landscape,but the ecological function and integrity of study area didn＇t changed qualitatively,they were still in the regulation range of eco-system,forest land and natural grassland were still the main landscape patterns and could play dynamic regulatory effect.
出处
《生态经济》
北大核心
2010年第11期101-103,120,共4页
Ecological Economy
基金
国家重点基础研究发展规划项目(2007CB407205)
关键词
矿产资源开发
景观格局
梭罗沟
生态环境
mineral resources exploitation
landscape pattern
Suoluogou
eco-environment
