Based on the soil data obtained by multi-purpose regional geochemical survey, the authors estimated the surface soil organic carbon storage and organic carbon density in western Chongqing. The results show that the surface soil organic carbon storage is 41 038 589 t, with organic carbon average density of 2 929 t·km-2. As for geomorphological types, the soils of low maintains (2 984 t·km-2) and middle maintains (2 986 t·km-2) have higher organic carbon density, the density of hills soil is the lowest, and the maintainous soil has most abundant organic carbon storage. In different soil types, the organic carbon density of limestone soil is the highest (5 043 t·km-2), followed by yellow soil (3 756 t·km-2), the organic carbon density of purple soil is the lowest (2 329 t·km-2), and the organic carbon storage of purple soil is the highest. Regarding the land use, the organic carbon density of forest land is the highest (4 071 t·km-2), the cultivated land is at the middle level (2 752 t·km-2), the resident and building soil is the lowest (2 416 t·km-2), and the organic carbon storage of the cultivated land is the highest. A comparison with the data of the Second Soil General Survey shows that the surface soil organic carbon storage and organic carbon density have been reduced and, as‘carbon source’, the surface soil has released organic carbon to the air. Especially the soil in Nanchuan and Jiangjin has decreased by 56.7% and 45.1% respectively.
鲍丽然, 严明书, 贾中民, 龚媛媛. 重庆西部表层土壤有机碳储量与密度分布[J]. 物探与化探, 2015, 39(1): 180-185.
BAO Li-Ran, YAN Ming-Shu, JIA Zhong-Min, GONG Yuan-Yuan. The distribution of the surface soil organic carbon storage and density in western Chongqing. Geophysical and Geochemical Exploration, 2015, 39(1): 180-185.
[1] 胡芳建.鄱阳湖生态经济区植被和土壤碳储量估算研究.南昌:江西农业大学,2011.[2] 李随民,栾文楼,宋泽峰,等.河北省南部平原区土壤有机碳储量估算[J].中国地质,2010,37(2):526-529.[3] 耿元波,董云社,孟维奇.陆地碳循环研究进展[J].地理科学进展,2000,19(4):297-303.[4] 朱连奇,朱小立,李秀霞.土壤有机碳研究进展[J].河南大学学报:自然科学版,2006,36(3):72-75.[5] 汪业勖,赵士洞,牛栋.陆地土壤碳循环的研究动态[J].生态学杂志,1999,18(5):29-35.[6] Robert H B, Benjamin J D.Mitigation potential and costs for global agricultural greenhouse gas emissions[J].Agrieuhural Economics, 2008, 38(2):109-115.[7] 王绍强,周成虎.中国陆地土壤有机碳库的估算[J].地理研究,1999,18(4):349-356.[8] 张文娟.基于地理信息系统的中国土壤有机碳储量空间变异性研究.北京:中国农业大学,2006.[9] 边维勇,马力,洪秀伟,等.辽河流域表层土壤碳密度与碳储量浅析[J].岩矿测试,2011,30(1):49-52.[10] 王文俊.福建龙岩地区土壤有机碳储量特征及其影响因素[J].第四纪研究,2012,32(2):337-344.[11] 陶春军,贾十军,邢润华,等.安徽滁州地区土壤有机碳储量分布特征研究[J].资源调查与环境,2013,34(1):23-70.[12] 王明霞,张小卫,王会锋,等.关中地区表层土壤碳储量问题的研究[J].地球与环境,2013,41(3):303-310.[13] 李延生.黑龙江省扎龙湿地土壤地球化学特征及生态环境意义[J].物探与化探,2010,34(4):515-516.[14] 刘文辉,李春亮,吴永强.甘肃省兰州—白银地区土壤有机碳密度估算及其空间分布特征[J].物探与化探,2012,36(3):367-370.[15] 黄雪夏,倪九派,高明,等.重庆市土壤有机碳库的估算及其空间分布特征[J].水土保持学报,2005,19(1):54-58.[16] 中国地质调查局.多目标区域地球化学调查规范(1:250 000)[S].2005,10.[17] 中国地质调查局.生态地球化学评价样品分析技术要求[S].2005,10.[18] 奚小环,张建新,廖启林.多目标区域地球化学调查与土壤碳储量问题——以江苏、湖南、四川、吉林、内蒙古为例[J].第四纪研究,2008(1):58-67.[19] 奚小环,杨忠芳,夏学齐.基于多目标区域地球化学凋查的中国土壤碳储量计算方法研究[J].地学前缘,2009,16(1):194-205.[20] 四川省农牧厅,四川省土壤普查办公室.四川土壤[M].成都:四川科学技术出版社,1997:191-213,316-370,392-453.[21] 廖艳,孙淑梅,杨忠芳,等.吉林中西部地区土壤有机碳储量及其时空变化特征[J].第四纪研究,2011,31(1):189-196.[22] 奚小环,杨忠芳,廖启林,等.中国典型地区土壤碳储量研究[J].第四纪研究,2010,30(3):573-583.[23] 张茂忠,雷家立,龚媛媛,等.重庆市多目标地球化学调查报告.重庆市地质矿产勘查开发局,2008.[24] 曹建华,袁道先,潘根兴.岩溶生态系统中的土壤[J].地球科学进展,2003,18(1):37-44.[25] 倪九派,袁道先,谢德体,等.重庆岩溶区土壤有机碳库的估算及其空间分布特征[J].生态学报,2009,29(11):6292-6300.[26] 杨玉盛,谢锦升,盛浩,等.中亚热带山区土地利用变化对土壤有机碳储量和质量的影响[J].地理学报,2007,62(11):1123-1131.[27] 周涛,史培军,王绍强.气候变化及人类活动对中国土壤有机碳储量的影响[J].地理学报,2003,58(5):727-734.[28] 刘文辉. 甘肃省张掖—永昌地区土壤有机碳密度估算及其空间分布特征[J].物探与化探,2013,37(3):552-556.[29] 潘根兴,李恋卿,张旭辉,等.中国土壤有机碳库量与农业土壤碳固定动态的若干问题[J].地球科学进展,2003,18(4):609-616.[30] Liao Q L, Zhang X H, Li Z P,et al.Increase in soil organic carbon stock over the last two decades in China Jiangsu Province[J].Global Change Biology, 2009, 15:861-875.[31] 杨军,张德存,胡绍祥,等.江汉平原土壤有机碳储量和密度分布特征研究//中国矿物岩石地球化学学会,中国地质学会. 第三届全国应用地球化学学术会议论文集. 广州:中山大学,2010:404-411.[32] 刘子刚,张坤民.黑龙江省三江平原湿地土壤碳储量变化[J].清华大学学报:自然科学版,2005,45(6):788-791.[33] 李发鹏,李景玉,徐宗学.东北黑土区土壤退化及水土流失研究现状[J].水土保持研究,2006,13(3):50-54.[34] 潼南县人民政府农村工作办公室.西部菜都潼南县蔬菜产业健康发展[J].南方农业,2009(3):56-58.[35] 崔志刚.基于GIS的土地利用变化研究——以重庆市江津区为例.重庆:西南大学,2009.
