青海东部表层土壤有机碳密度及其空间分布特征

doi:10.11720/wtyht.2023.1287

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Abstract

This study integrated the data of both the multi-purpose regional geochemical survey and land quality geochemical survey covering an area of 33 092 km² in eastern Qinghai. Based on these data, the total organic carbon storage of topsoil in the study area was estimated to be 171.16 Mt, with an average organic carbon density of 5 172.14 t/km². Moreover, this study analyzed the spatial distribution and main influencing factors of organic carbon in topsoil. As indicated by the results, the average density of organic carbon in topsoil is significantly high in high and middle-low mountains, grassland and meadow soils, soil parent materials of eluvial-slope deposits, forest grasslands, and alpine sparse vegetation areas, grassland and forest and is the lowest in deserts, aeolian sandy soil, and soil parent material areas of aeolian sands. This finding means that factors including topography (altitude), soil parent materials, climate, and vegetation affect the density and distribution of organic carbon in topsoil. Compared with the organic carbon storage revealed by the second general detailed soil survey in Qinghai, 53.21 Mt of organic carbon has been released from the topsoil of eastern Qinghai in the past 20 years. This result indicates that the soil organic carbon has decreased to a certain extent under the influence of human production activities such as long-term cultivation, overcutting, and overgrazing.

Key words： soil organic carbon density distribution characteristics topsoil soil type eastern Qinghai

Received: 04 June 2022 Published: 11 October 2023

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	Articles by authors
	Qing-Yu LIU
	Ying MA
	Li CHENG
	Xiao SHEN
	Ya-Feng ZHANG
	Guo-Wen MIAO
	Qiang HUANG
	Si-Qi HAN

Cite this article:

Qing-Yu LIU,Ying MA,Li CHENG, et al. Density and spatial distribution of organic carbon in the topsoil of eastern Qinghai[J]. Geophysical and Geochemical Exploration, 2023, 47(4): 1098-1108.

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https://www.wutanyuhuatan.com/EN/10.11720/wtyht.2023.1287 OR https://www.wutanyuhuatan.com/EN/Y2023/V47/I4/1098

Traffic location in eastern Qinghai

Landform (a), soil type (b), land use (c) and ecosystem division (d) in eastern Qinghai

Characteristics of soil organic carbon density and storage in typical areas of China

Distribution of unit organic carbon density in surface soil of eastern qinghai

Organic carbon storage and density distribution of different landforms in eastern Qinghai

Organic carbon storage and density distribution of different soil types in eastern Qinghai

Organic carbon storage and density distribution of different soil parent materials in eastern Qinghai

Organic carbon storage and density distribution of different land use types in eastern Qinghai

Organic carbon storage and density distribution of different ecosystems in eastern Qinghai

Variation trend of topsoil organic carbon storage in recent 20 years in eastern Qinghai

Trends of organic carbon storage in different soil types in eastern Qinghai

[1]	曹宏杰, 王立民, 罗春雨, 等. 三江平原地区土壤有机碳及其组分的空间分布特征[J]. 生态环境学报, 2013, 22(7):1111-1118.
[1]	Cao H J, Wang L M, Luo C Y, et al. Spatial distribution patterns of soil organic carbon and its fractions in Sanjiang Plain[J]. Ecology and Environmental Sciences, 2013, 22(7):1111-1118.
[2]	陈泮勤. 地球系统碳循环[M]. 北京: 科学出版社, 2004:1-30.
[2]	Chen P Q. Earth system carbon cycle[M]. Beijing: Science Press, 2004:1-30.
[3]	奚小环, 李敏, 张秀芝, 等. 中国中东部平原及周边地区土壤有机碳分布与变化趋势研究[J]. 地学前缘, 2013, 20(1):154-165.
[3]	Xi X H, Li M, Zhang X Z, et al. Research on soil organic carbon distribution and chang trend in middle-east plain and its vicinity in China[J]. Earth Science Frontiers, 2013, 20(1):154-165.
[4]	李成, 王让会, 李兆哲, 等. 中国典型农田土壤有机碳密度的空间分异及影响因素[J]. 环境科学, 2021, 42(5):2432-2439.
[4]	Li C, Wang R H, Li Z Z, et al. Spatial differentiation of soil organic carbon density and influencing factors in typical croplands of China[J]. Environmental Science, 2021, 42(5):2432-2439.
[5]	张立, 金晶泽, 姜侠, 等. 1986—2019年黑龙江省松嫩平原表层土壤有机碳变化及固碳潜力估算[J]. 现代地质, 2021, 35(4):914-922.
[5]	Zhang L, Jin J Z, Jiang X, et al. Variations of organic carbon and evaluation of carbon sequestration potential in surface soil in Songnen Plain of Heilongjiang Province from 1986 to 2019[J]. Geoscience, 2021, 35(4) :914-922.
[6]	马剑, 金铭, 敬文茂, 等. 祁连山中段典型植被土壤有机碳密度研究[J]. 中南林业科技大学学报, 2020, 40(8):99-105.
[6]	Ma J, Jin M, Jing W M, et al. Study on soil organic carbon density of typical vegetation in middle Qilian mountains[J]. Journal of Central South University of Forestry & Technology, 2020, 40(8):99-105.
[7]	张亚亚, 郭颖, 刘海红, 等. 青藏高原表土有机碳、全氮含量分布及其影响因素[J]. 生态环境学报, 2018, 27(5):866-872.
[7]	Zhang Y Y, Guo Y, Liu H H, et al. Content and impact factors of soil organic carbon and total nitrogen on the Qinghai-Tibet Plateau[J]. Ecology and Environmental Sciences, 2018, 27(5):866-872.
[8]	刘庆宇, 马瑛, 程莉. 青海门源县土壤质量地球化学评价[J]. 地质与勘探, 2022, 58(3):609-618.
[8]	Liu Q Y, Ma Y, Cheng L. Geochemical evaluation of soil quality in Menyuan County of Qinghai Province[J]. Geology and Exploration, 2022, 58(3):609-618.
[9]	张亚峰, 马强, 姬丙艳, 等. 青海周边地区土壤碳汇潜力评价[J]. 中国矿业, 2016, 25(S1):271-273,295.
[9]	Zhang Y F, Ma Q, Ji B Y, et al. Evaluation on potential siol carbon sequestration in the surrounding area of Qinghai[J]. China Mining Magazine, 2016, 25(S1) :271-273,295.
[10]	奚小环. 自然资源时期:大数据与地球系统科学——再论全面发展时期的勘查地球化学[J]. 物探与化探, 2019, 43(3):449-460.
[10]	Xi X H. Natural resources period:Big data and systematic science of the earth-More on exploration geochemistry during the overall development period[J]. Geophysical and Geochemical Exploration, 2019, 43(3):449-460.
[11]	马瑛, 刘庆宇, 黄强, 等. 青海门源—湟中地区1:25万土地质量地球化学调查成果报告[R]. 青海省第五地质勘查院, 2019.
[11]	Ma Y, Liu Q Y, Huang Q, et al. Report on 1:250 000 geochemical investigation results of land quality in Menyuan-Huangzhong area,Qinghai Province[R]. The fifth Geological Exploration Institute of Qinghai Province, 2019.
[12]	姬丙艳, 许光. 青海东部生态地球化学成果及经济效益示范[M]. 北京: 中国地质大学出版社, 2020:70-97.
[12]	Ji B Y, Xu G. Eco geochemical achievements and economic benefit demonstration in eastern Qinghai[M]. Beijing: China University of Geosciences Press, 2020:70-97.
[13]	青海省农业资源区划办公室. 青海土壤[M]. 北京: 中国农业出版社, 1997.
[13]	Qinghai Agricultural Resources Regionalization Office. Qinghai soil[M]. Beijing: China Agriculture Press, 1997.
[14]	袁杰, 曹广超, 鄂崇毅, 等. 环青海湖表层土壤沉积物粒度分布特征及其指示意义[J]. 水土保持研究, 2015, 22(3):150-154.
[14]	Yuan J, Cao G C, E C Y. et al. Grain size distribution of surface soil deposit around Qinghai Lake and its implications[J]. Research of Soil and Water Conservation, 2015, 22(3):150-154.
[15]	瓮耐义, 刘康, 王纪伟. 基于GIS的高原植被空间格局与地形因子相关关系研究[J]. 水土保持通报, 2014, 34(1):232-236.
[15]	Weng N Y, Liu K, Wang J W. A study of relationship between spatial vegetation pattern and terrain factors based on GIS Techniques[J]. Bulletin of Soil and Water Conservation, 2014, 34(1):232-236.
[16]	张立, 崔玉军, 刘国栋, 等. 哈尔滨—绥化地区土壤氮储量及其时空变化特征[J]. 地质与资源, 2014, 23(2):188-191.
[16]	Zhang L, Cui Y J, Liu G D, et al. Soil nitrogen storage and its variation in space and time in Harbin-Suihua area[J]. Geology and Resources, 2014, 23(2):188-191.
[17]	张明, 陈国光, 刘红樱, 等. 长江三角洲表层土壤Sn元素的空间分布特征及影响因素[J]. 地质通报, 2011, 30(7):1147-1154.
[17]	Zhang M, Chen G G, Liu H Y, et al. Spatial distribution of tin in top soils of Yangtze River delta and influencing factors[J]. Geological Bulletin of China, 2011, 30(7):1147-1154.
[18]	奚小环, 张建新, 廖启林, 等. 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, 28(1):58-67.
[18]	Xi X H, Zhang J X, Liao Q L, et al. Multi-purose regional geochemical survey and soil carbon reserves problem:Examples of Jiangsu,Hunan,Sichuan,Jilin Provinces and Inner Mongolia[J]. Quaternayr Sciences, 2008, 28(1):58-67.
[19]	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.
[19]	Liu W H. The soil organic carbon density and its distribution characteristics in Zhangye-Yongchang area,Gansu Province[J]. Geophysical and Geochemical Exploration, 2013, 37(3):552-556.
[20]	鲍丽然, 龚媛媛, 严明书, 等. 渝西经济区土壤地球化学基准值与背景值及元素分布特征[J]. 地球与环境, 2015, 43(1):31-40.
[20]	Bao L R, Gong Y Y, Yan M S, et al. Element geochemical baseline and distributions in soil in Chongqing West Economic zone,China[J]. Earth and Environment, 2015, 43(1):31-40.
[21]	韩伟, 王乔林, 宋云涛, 等. 四川省沐川县北部土壤硒地球化学特征与成因探讨[J]. 物探与化探, 2021, 45(1):215-222.
[21]	Han W, Wang Q L, Song Y T, et al. Geochemical characteristics and genesis of selenium in soil in northern Muchuan County,Sichuan Province[J]. Geophysical and Geochemical Exploration, 2021, 45(1):215-222.
[22]	刘国栋, 李禄军, 戴慧敏, 等. 松辽平原土壤碳库变化及其原因分析[J]. 物探与化探, 2021, 45(5):1109-1120.
[22]	Liu G D, Li L J, Dai H M, et al. Change in soil carbon pool in Songliao Plain and its cause analysis[J]. Geophysical and Geochemical Exploration, 2021, 45(5):1109-1120.
[23]	奚小环, 杨忠芳, 夏学齐, 等. 基于多目标区域地球化学调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.
[23]	Xi X H, Yang Z F, Xia X Q, et al. Calculation techniques for soil carbon storage of China based on mult-ipurposegeochemical survey[J]. Earth Science Frontiers, 2009, 16(1):194-205.
[24]	贺鹏飞, 魏明辉, 李秋燕, 等. 内蒙古鄂伦春旗东部主要农耕区土壤有机碳含量及主要影响因素分析[J]. 地质与资源, 2020, 29(6):574-578.
[24]	He P F, Wei M H, Li Q Y, et al. Soil organic carbon in the main cultivated lands of eastern Oroqen Banner,Inner Mongolia:Contents and major influencing factors[J]. Geology and Resources, 2020, 29(6):574-578.
[25]	张妍, 谷志云, 裴瑞亮, 等. 河南商丘地区土壤有机碳密度及其空间分布特征[J]. 勘查勘查, 2021, 12(10):2153-2160.
[25]	Zhang Y, Gu Z Y, Pei R L, et al. Soil organic carbon density and distribution in Shangqiu area,Henan Province[J]. Mineral Exploration, 2021, 12(10):2153-2160.
[26]	张亚峰, 姬丙艳, 马强, 等. 青海湟水河流域表层土壤有机碳储量和密度浅析[J]. 西北地质, 2012, 45(1):298-301.
[26]	Zhang Y F, Ji B Y, Ma Q, et al. Preliminary analysis of organic carbon density and Storage of surface soils in Huangshui River Basin at Qinghai Province[J]. Northwestern Geology, 2012, 45(1):298-301.
[27]	张秀芝, 赵相雷, 李宏亮, 等. 河北平原土壤有机碳储量及固碳机制研究[J]. 地学前缘, 2011, 18(6):41-55.
[27]	Zhang X Z, Zhao X L, Li H L, et al. Research on organic carbon storage and sequestration mechanism of soils in the Hebei Plain[J]. Earth Science Frontiers, 2011, 18(6):41-55.
[28]	李春亮, 王翔, 张炜, 等. 黄土高原西段表层土壤有机碳储量及时空变化规律[J]. 现代地质, 2022, 36(2):655-661.
[28]	Li C L, Wang X, Zhang W, et al. Topsoil organic carbon storage and its spatial and temporal variation in the western Loess Plateau[J]. Geoscience, 2022, 36(2):655-661.
[29]	代杰瑞, 庞绪贵, 董健, 等. 山东省土壤有机碳库及其时空变化特征[J]. 现代地质, 2017, 31(2):386-393.
[29]	Dai J R, Pang X G, Dong J, et al. Soil organic carbon pool and temporal variation characteristics in Shandong Province[J]. Geoscience, 2017, 31(2):386-393.
[30]	姜蓝齐, 臧淑英, 张丽娟, 等. 松嫩平原农田土壤有机碳变化及固碳潜力估算[J]. 生态学报, 2017, 37(21):7068-7081.
[30]	Jiang L Q, Zang S Y, Zhang L J, et al. Temporal and spatial variations of organic carbon and evaluation of carbon sequestration potential in the agricultural topsoil of the Songnen Plain[J]. Acta Ecologica Sinica, 2017, 37(21):7068-7081.
[31]	鲍丽然, 严明书, 贾中民, 等. 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.
[31]	Bao L R, Yan M S, Jia Z M, et al. The distribution of the surface soil organic carbon storage and density in western Chongqing[J]. Geophysical and Geochemical Exploration, 2015, 39(1):180-185.
[32]	宋满珍, 刘琪璟, 吴自荣, 等. 江西省森林土壤有机碳储量研究[J]. 南京林业大学学报:自然科学版, 2010, 34(2):6-10.
[32]	Song M Z, Liu Q J, Wu Z R, et al. Organic carbon storage of forest soil in Jiangxi province[J]. Jourrnal of Nanjing Forestry University:Natural Science Edition, 2010, 34(2):6-10.
[33]	李林, 李晓东, 校瑞香, 等. 青藏高原东北部气候变化的异质性及其成因[J]. 自然资源学报, 3019, 34(7):1496-1505.
[33]	Li L, Li X D, Xiao R X, et al. The heterogeneity of climate change and its genesis in the Northeastern Qinghai-Tibet Plateau[J]. Journal of Natural Resources, 3019, 34(7):1496-1505.
[34]	钟聪, 杨忠芳, 夏学齐, 等. 青海省土壤有机碳储量估算及其源汇因素分析[J]. 现代地质, 2012, 26(5):896-909.
[34]	Zhong C, Yang Z F, Xia X Q, et al. Estimation of soil organic carbon storage and analysis of soil carbon source/sink factors in Qinghai Province[J]. Geoscience, 2012, 26(5):896-909.
[35]	奚小环, 杨忠芳, 崔玉军, 等. 东北平原土壤有机碳分布与变化趋势研究[J]. 地学前缘, 2010, 17(3):213-221.
[35]	Xi X H, Yang Z F, Cui Y J, et al. A study of soil carbon distribution and change in Northeast Plain[J]. Earth Science Frontiers.Earth Science Frontiers, 2010, 17(3):213-211.
[36]	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.
[36]	Xi X H, Yang Z F, Liao Q L, et al. Soil organic carbon storage in typical regions of China[J]. Quaternary Sciences, 2010, 30(3):573-583.
[37]	罗由林, 李启权, 王昌全, 等. 近30年来川中紫色丘陵区土壤碳氮时空演变格局及其驱动因素[J]. 土壤学报, 2016, 53(3):582-593.
[37]	Luo Y L, Li Q Q, Wang C Q, et al. Spatio-temporal variations of soil organic carbon and total nitrogen and driving factors in purple soil hilly area of mid-Sichuan Basin in the past 30 years[J]. Acta Pedologica Sinica, 2016, 53(3):582-593.
[38]	傅野思, 夏学齐, 杨忠芳. 内蒙古自治区土壤有机碳库储量及分布特征[J]. 现代地质, 2012, 26(5):886-895.
[38]	Fu Y S, Xia X Q, Yang Z F. Storage and distribution of soil organic carbon in Inner Mongolia[J]. Geoscience, 2012, 26(5):886-895.
[39]	刘文辉, 李春亮, 吴永强. 甘肃省兰州—白银地区土壤有机碳库储量估算与空间分布特征[J]. 物探与化探, 2012, 36(3):367-371.
[39]	Liu W H, Li C L, Wu Y Q. Reserves estimation and spatial distribution of the organic carbon pool in Lanzhou-Baiyin area,Gansu Province[J]. Geophysical and Geochemical Exploration, 2012, 36(3):367-371.
[40]	马逸麟, 郄海满, 彭晓玫, 等. 江西省鄱阳湖及周边经济区土壤有机碳储量分布特征[J]. 岩矿测试, 2014, 33(2):246-255.
[40]	Ma Y L, Qie H M, Peng X M, et al. The reserve distribution characteristics of organic carbon in soil from Poyang Lake and the surrounding economic region[J]. Rock and Mineral Analysis, 2014, 33(2):246-255.
[41]	郭灵辉, 高江波, 吴绍洪, 等. 1981—2010年内蒙古草地土壤有机碳时空变化及其气候敏感性[J]. 环境科学研究, 2016, 29(7):1050-1058.
[41]	Guo L H, Gao J B, Wu S H, et al. Spatial-temporal change of soil organic carbon and its susceptibility to climate change in Inner Mongolia Grassland during 1981-2010[J]. Research of Environmental Sciences, 2016, 29(7):1050-1058.
[42]	程先富, 谢勇. 基于GIS 的安徽省土壤有机碳密度的空间分布特征[J]. 地理科学, 2009, 29(4):540-544.
[42]	Cheng X F, Xie Y. Spatial distribution of soil organic carbon density in Anhui Province based on GIS[J]. Scientia Geographica Sinica, 2009, 29(4):540-544.
[43]	罗由林, 李启权, 王昌全, 等. 四川省仁寿县土壤有机碳空间分布特征及其主控因素[J]. 中国生态农业学报, 2015, 23(1):34-42.
[43]	Luo Y L, Li Q Q, Wang C Q, et al. Spatial variability of soil organic carbon and related controlling factors in Renshou County,Sichuan Province[J]. Chinese Journal of Eco-Agriculture, 2015, 23(1):34-42.
[44]	张珍明, 周运超, 黄先飞, 等. 喀斯特小流域土壤有机碳密度及碳储量空间分布异质性[J]. 水土保持学报, 2017, 31(2):184-190,214.
[44]	Zhang Z M, Zhou Y C, Huang X F, et al. Spatial heterogeneity and distribution characteristics of soil organic carbon density and soil carbon storage in a small Karst watershed[J]. Journal of Soil and Water Conservation, 2017, 31(2):184-190,214.
[45]	王经波, 郑利林, 郭宇菲, 等. 鄱阳湖湿地土壤有机碳空间分布及其影响因素[J]. 长江流域资源与环境, 2022, 31(4):915-926.
[45]	Wang J B, Zheng L L, Guo Y F, et al. Spatial distribution of soil organic carbon and its influencing factors in Poyang Lake wetlan[J]. Resources and Environment in the Yangtze Basin, 2022, 31(4):915-926.
[46]	虞舟鲁, 邱乐丰, 林霖. 土地利用方式变化对农业土壤有机碳空间分布的影响[J]. 浙江农业学报, 2017, 29(5):806-811.
[46]	Yu Z L, Qiu L F, Lin L. Influence of land use changes on soil organic carbon distribution in agricultural soils[J]. Acta Agriculturae Zhejiangensis, 2017, 29(5):806-811.
[47]	黎英华, 姚云峰, 秦富仓, 等. 不同类型土壤的有机碳密度特征[J]. 干旱区研究, 2016, 33(3):455-460.
[47]	Li Y H, Yao Y F, Qin F C, et al. Distribution of different types of soil organic carbon density[J]. Arid Zone Research, 2016, 33(3):455-460.
[48]	吕文强, 周传艳, 闫俊华, 等. 贵州省主要森林类型土壤有机碳密度特征及其影响因素[J]. 地球与环境, 2016, 44(2):147-153.
[48]	Lyu W Q, Zhou C Y, Yan J H, et al. Soil organic carbon density and its influencing factors for the forest region of Guizhou Province,China[J]. Earth and Environment, 2016, 44(2):147-153.
[49]	袁芳, 赵小敏, 乐丽红, 等. 江西省表层土壤有机碳库储量估算与空间分布特征[J]. 生态环境, 2008, 17(1):268-272.
[49]	Yuan F, Zhao X M, Le L H, et al. Organic carbon reserves of topsoil and spatial distribution in Jiangxi Province[J]. Ecology and Environment, 2008, 17(1):268-272.
[50]	王晓, 于兵, 李继红. 土地利用和土地覆被变化对土壤有机碳密度及碳储量变化的影响——以黑龙江省大庆市为例[J]. 东北林业大学学报, 2021, 49(11):76-83.
[50]	Wang X, Yu B, Li J H. Effects of land use and land cover change on soil organic carbon density and carbon storage—A case study of Daqing,Heilongjiang Province[J]. Journal Northeast Forestry University, 2021, 49(11):76-83.
[51]	涂夏明, 周家茂, 曹军骥, 等. 黄土高原不同土地利用类型有机碳和黑碳的储量及意义[J]. 地球环境学报, 2017, 8(1):65-71.
[51]	Tu X M, Zhou J M, Cao J J, et al. Implication and storage of soil organic carbon and black carbon in different land use types in the topsoil of Loess Plateau[J]. Journal of Earth Environment, 2017, 8(1):65-71.
[52]	原一荃, 王繁. 杭州湾南岸围垦区土壤有机碳空间分布特征及其影响因素[J]. 浙江农业科学, 2016, 57(2):285-287,296.
[52]	Yuan Y Q, Wang F. Spatial distribution characteristics and influencing factors of soil organic carbon in the reclamation area on the South Bank of Hangzhou Bay[J]. Zhejiang Agricultural Science, 2016, 57(2):285-287,296.
[53]	张青青, 张桂莲, 伍海兵, 等. 城市森林土壤有机碳密度及影响因子变化研究[J]. 生态科学, 2022, 41(2):204-210.
[53]	Zhang Q Q, Zhang G L, Wu H B, et al. Study on changes of soil organic carbon density and influencing factors in urban forest[J]. Ecological Science, 2022, 41(2):204-210.
[54]	郭晓伟, 骆土寿, 李意德, 等. 海南尖峰岭热带山地雨林土壤有机碳密度空间分布特征[J]. 生态学报, 2015, 35(23):7878-7886.
[54]	Guo X W, Luo T S, Li Y D, et al. Spatial distribution characteristics of soil organic carbon density in a tropical mountain rainforest of Jianfengling,Hainan Island,China[J]. Acta Ecologica Sinica, 2015, 35(23):7878-7886.
[55]	代杰瑞, 庞绪贵, 曾宪东, 等. 山东省土壤有机碳密度的空间分布特征及其影响因素[J]. 环境科学研究, 2015, 28(9):1449-1458.
[55]	Dai J R, Pang X G, Zeng X D, et al. Soil carbon density and distribution and influencing factors in Shandong Province[J]. Research of Environmental Sciences, 2015, 28(9):1449-1458.
[56]	青海省农业资源区划办公室. 青海土壤[M]. 北京: 中国农业出版社, 1997.
[56]	Qinghai Agricultural Resources Regionalization Office. Qinghai soil[M]. Beijing: China Agriculture Press, 1997.
[57]	王文俊. 福建省土壤有机碳储量估算、时空分布特征及其影响因素[J]. 现代地质, 2019, 33(6):1295-1305.
[57]	Wang W J. Reserve estimation,spatiotemporal distribution and its influencing factors of soil organic carbon in Fujian Province,China[J]. Geoscience, 2019, 33(6):1295-1305.
[58]	张亚峰, 姚振, 马强, 等. 青藏高原北缘土壤碳库和碳汇潜力研究[J]. 地球科学进展, 2018, 33(2):206-212.
[58]	Zhang Y F, Yao Z, Ma Q, et al. Study on the soil carbon pool and potential capacity of carbon sequestration in the northern Tibetan Plateau[J]. Advances in Earth Science, 2018, 33(2):206-212.
[58]	田耀武, 贺春玲, 刘龙昌, 等. 退耕草地土壤有机碳密度的空间分布及动态变化[J]. 草业学报, 2016, 25(8):48-55.
[58]	Tian Y W, He C L, Liu L C, et al. Changes in the spatial distribution and dynamics of soil organic carbon density in grasslands converted from farmland[J]. Acta Prataculturae Sinica, 2016, 25(8):48-55.
[60]	卫玮, 党坤良. 秦岭南坡林地土壤有机碳密度空间分异特征[J]. 林业科学, 2019, 55(5):11-19.
[60]	Wei W, Dang K L. Spatial variation of the density of soil organic carbon in forest land on the southern slope of Qinling Mountains[J]. Scientia Silvae Sinicae, 2019, 55(5):11-19.