中山大学学报（自然科学版）（中英文）2024，Vol.63Issue(3)：12-20,9.DOI:10.13471/j.cnki.acta.snus.2023D050
红层区耕地土壤有机碳储量估算与固碳潜力分析
Estimation of organic carbon storage and carbon sequestration potential of cultivated soil in red beds area
摘要
Abstract
The storage of soil organic carbon is a crucial metric for assessing soil nutrients and environ-mental quality,and it is of great importance for land development,utilization,and achieving carbon neutrality.However,little research has been done on soil organic carbon storage in cultivated land in the red beds region.This study focused on the 0-20 cm surface soil of cultivated land in the red beds re-gion of Lianzhou city,utilizing the ordinary Kriging interpolation method to estimate the density and storage of soil organic carbon.The study analyzed the distribution characteristics and soil carbon se-questration potential as well.The results indicate that overall organic carbon density showed a down-ward trend from 2007 to 2019.The average organic carbon density decreased from 4.624 kg/m2 to 2.668 kg/m2,and the organic carbon storage decreased from 1.99×109 kg to 1.21×109 kg.The soil car-bon sequestration potential was calculated to be 9.42×108 kg.The significant decrease in soil organic carbon storage in the red beds region of Lianzhou city is primarily due to weak irrigation facilities,high intensity of farmland utilization,insufficient fertilizer input,and lack of precise fertilization in ag-ricultural conditions.By improving basic agricultural facilities,reducing abandoned farmland,decreas-ing high-intensity soil utilization,and scientifically and reasonably applying fertilizers,the organic car-bon storage of farmland in the red beds region of Lianzhou city can be increased,promoting the sus-tainable development of green,low-carbon agriculture in Lianzhou city.关键词
有机碳密度/有机碳储量/固碳潜力Key words
organic carbon density/organic carbon storage/carbon sequestration potential分类
农业科技引用本文复制引用
周萌,梁志鹏,邹天祥,涂俊喜,胡炎凤,沈文杰..红层区耕地土壤有机碳储量估算与固碳潜力分析[J].中山大学学报（自然科学版）（中英文）,2024,63(3):12-20,9.基金项目
国家自然科学基金(42072229) （42072229）
广州市科技计划项目(202002030184,201804010190) （202002030184,201804010190）
NFSC-广东联合基金(U1911202) （U1911202）
