The spatial distribution of cropland carbon transfer in Jilin province during 2014

2017 3rd International Conference on Environmental Science and Material Application

生态环境科学;材料科学

Cai, Xintong^1 ; Meng, Jian^1 ; Li, Qiuhui^1 ; Gao, Shuang^1 ; Zhu, Xianjin^1

College of Agronomy, Shenyang Agricultural University, Shenyang

110161, China^1

关键词: Carbon balance;    Carbon budgets;    Carbon transfer;    Jilin Province;    Planting areas;    Regional areas;    Spatial variations;    Terrestrial ecosystems;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/108/4/042034/pdf
DOI  :  10.1088/1755-1315/108/4/042034

来源: IOP

【 摘 要 】

Cropland carbon transfer (CCT, gC yr-1) is an important component in the carbon budget of terrestrial ecosystems. Analyzing the value of CCT and its spatial variation would provide a data basis for assessing the regional carbon balance. Based on the data from Jilin statistical yearbook 2015, we investigated the spatial variation of CCT in Jilin province during 2014. Results suggest that the CCT of Jilin province was 30.83 TgC, which exhibited a decreasing trend from the centre to the border but the west side was higher than the east. The magnitude of carbon transfer per area (MCT), which showed a similar spatial distribution with CCT, was the dominating component of CCT spatial distribution. The spatial distribution of MCT was jointly affected by that of the ratio of planting area to regional area (RPR) and carbon transfer per planting area (CTP), where RPR and CTP contributed 65.55% and 34.5% of MCT spatial distribution, respectively. Therefore, CCT in Jilin province spatially varied, which made it highly needed to consider the difference in CCT among regions when we assessing the regional carbon budget.