Spatio-temporal Evolution Characteristics of Carbon Balance in Water Source Areas and Water Receiving Areas during the Construction Period of the South-to-North Water Diversion Middle Route Project
Mastering the spatio-temporal evolution law of carbon balance in major water sources areas and water receiving areas of significant water diversion projects,as well as its influencing factors,will contribute to formulate the low-carbon green development policies with regional characteristics and improve the scientific nature of carbon reduction and sink enhancement policies.Based on the county scale carbon emissions and vegetation carbon sequestration data,this paper analyzes the spatio-temporal evolution characteristics of carbon balance at county scale in the water source areas and receiving areas before and after the construction of the Middle Route Project of the South-to-North Water Diversion using the carbon balance coefficient and Kernel density functions.The results show that the carbon balance capacity of the Middle Route Project of the South-to-North Water Diversion presents a"declining and stabilization"trend,while the counties(cities,districts)along the Hanjiang River and Danjiang River in the Hanjiang River basin are seriously degraded.The carbon balance capacity of the water-receiving areas presents a sequence of"rise-fluctuating decline-fluctuating rise".The carbon imbalance in the radiation areas of medium and large cities is gradually worsening,and the spatial agglomeration effect is strengthening.The carbon balance capacity of 236 counties(cities,districts)along the Middle Route Project of the South-to-North Water Diversion presents a spatial distribution pattern of"higher in the west and lower in the east".
carbon balancecarbon source and sinkscounty scalewater diversion projectspatio-temporal evolution
万方数据
维普
