地质通报2024，Vol.43Issue(9)：1470-1484,15.DOI:10.12097/gbc.2023.09.028
黑龙江省齐齐哈尔五县碳存储量空间变化规律及固碳潜力研究
The spatial changes of carbon storage and carbon fixation potential in five counties of Qiqihar,Heilongjiang Province
摘要
Abstract
The five counties and cities of Baiquan,Yi'an,Fuyu,Keshan,and Kedong in Qiqihar,Heilongjiang Province,are famous as the hometown of black soil and also the most important grain producing areas in China.In recent years,there has been relatively little research on the density and storage of organic carbon(Corg)and total carbon(TC)in this region.This article relies on the soil organic carbon and soil total carbon test results obtained from the investigation of the black soil ground substrate in the Qiqihar area of the Songnen Plain to study the Corg and TC reserves,carbon density,spatial distribution,and carbon sequestration potential in the plain areas in the study area of Qiqihar,Heilongjiang Province,with a depth of less than 20 cm,and then use principal component analysis to analyze the factors affecting changes in organic carbon storage.It is found that the TC reserves in five counties of Qiqihar City,Heilongjiang Province is 82.17 Mt,and the Corg reserves is 67.93 Mt,which are at a relatively high level.The results of geostatistical analysis indicate that the Corg reserves in the region have a certain spatial autocorrelation,and the main controlling factor is the water erosion of the Nenjiang River,followed by changes in soil type and land use type.It exhibits a strong carbon sink effect,with a carbon sequestration potential of 20.10 Mt for surface soil Corg,which is at a relatively high level.As a result,it has been found that a stable and good soil environment is conducive to the enrichment and aggregation of carbon.The enrichment of elements such as N,S,Se,and P has extremely high value for carbon sequestration.The increase of inorganic salts such as K2O and Na2O and ecological fragile phenomena such as soil desertification have a significant impact on carbon storage and carbon sink phenomena.关键词
有机碳/固碳潜力/碳密度/空间分布/碳存储量/齐齐哈尔Key words
organic carbon/carbon sequestration potential/carbon density/spatial distribution/carbon storage/Qiqihar分类
资源环境引用本文复制引用
詹泽东,邵兴坤,西广越,任柄璋,侯红星,吕凯宁,李俊华,时凌峰,杨朝阳,曹龙宇..黑龙江省齐齐哈尔五县碳存储量空间变化规律及固碳潜力研究[J].地质通报,2024,43(9):1470-1484,15.基金项目
中国地质调查局项目《松嫩平原齐齐哈尔地区黑土地地表基质调查》(编号:ZD20220107) （编号:ZD20220107）
