The impact of land use change on ecological carbon sequestration of mining city

摘要

The ecological environment in a mining city is fragile; land use changes caused by mining are obvious and result in serious ecological problems,thus the study of ecological carbon sequestration in a mining city is of great significance.Based on three years of present land use maps,extracting land transfer matrix by ARCGIS,comparatively analyzing land use changes caused by mining in Wu'an City; analyzing its capacity of carbon sequestration by combining carbon sequestration rates and proportion of different land types; studying the effects of land use changes on carbon sequestration.Results show that: land use changes of the research area are complex and carbon sequestration capacity is declining as a whole.Finally,making carbon offset recommendations to keep carbon storage stable or even developing to carbon sink;promoting optimal land use allocation; proposing appropriate ecological restoration measures; and improving its ecological environment and promoting the coordinated development of economy and ecology.