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基于GIS的三江平原表层土壤有机碳储量估算及空间分布研究
引用本文:杨安广,苗正红,邱发富,杨清臣,王宗明,毛德华.基于GIS的三江平原表层土壤有机碳储量估算及空间分布研究[J].水土保持通报,2015,35(2):155-158.
作者姓名:杨安广  苗正红  邱发富  杨清臣  王宗明  毛德华
作者单位:1. 吉林省水利水电勘测设计研究院,吉林长春,130012
2. 中国科学院东北地理与农业生态研究所,吉林长春,130021
基金项目:中国科学院重点部署项目“北方毗邻地区资源环境关键问题及科学数据库建设”(KZZD-EW-08-02);国家基础科学研究(973)计划项目(2009CB421103)
摘    要:目的]研究三江平原2010年表层(0—30cm)土壤有机碳储量空间分布规律和不同土地利用类型对有机碳空间分布的影响。方法]采用地统计学和GIS相结合的方法。结果](1)2010年三江平原表层土壤有机碳总储量为1161.28Tg;(2)表层土壤有机碳空间分布变异性较大,中部和西南地区较低,东北、西北、东南地区较高;(3)不同土地利用类型土壤有机碳密度和储量有所不同,旱地表层土壤有机碳储量最大,为412.10Tg,草地最小,表层土壤有机碳储量为2.31Tg;(4)不同植被类型表层土壤有机碳密度大小顺序为:沼泽湿地林地草地水田旱地,沼泽湿地表层土壤有机碳密度为147.84Mg/hm2。结论]三江平原土壤有机碳密度空间分布存在较大的分异性,土壤有机碳密度的空间分布特征受土地利用类型分布的影响。

关 键 词:GIS  土壤有机碳密度  地统计学  三江平原
收稿时间:9/5/2014 12:00:00 AM
修稿时间:2014/10/13 0:00:00

A Study on Storage and Distribution of Soil Organic Carbon in Sanjiang Plain Based on GIS
YANG Anguang,MIAO Zhenghong,QIU Fafu,YANG Qingchen,WANG Zongming and MAO Dehua.A Study on Storage and Distribution of Soil Organic Carbon in Sanjiang Plain Based on GIS[J].Bulletin of Soil and Water Conservation,2015,35(2):155-158.
Authors:YANG Anguang  MIAO Zhenghong  QIU Fafu  YANG Qingchen  WANG Zongming and MAO Dehua
Institution:YANG Anguang;MIAO Zhenghong;QIU Fafu;YANG Qingchen;WANG Zongming;MAO Dehua;Jilin Provincical Water Resource and Hydropower Consultative Company;Institute of Northeast Geography and Agricultural Ecology,Chinese Academy of Sciences;
Abstract:Objective] This paper aimed to illustrate the distribution of soil organic carbon(SOC) storage and its differences caused by land use types.Methods] Using GIS and geostatistical methods.Results] (1) In 2010, total reserves of SOC in the surface(0-30 cm) was 1 161.28 Tg; (2) SOC distributed spatially heterogeneously, in the central and southwest of Sanjiang Plain, SOC was lower than that in the northwest, northeast and southeast; (3) The storage and density of SOC of different land use types were quite different. For example, farmlands had the highest surface storage of SOC with a value of 412.10 Tg, but grasslands contained the lowest SOC, that was only 2.31 Tg;(4) Surface SOC density of different vegetation types ranked as:marsh >woodland >grassland >paddy >farmland. Among them, the surface SOC density of marsh was 147.84 Mg/hm2.Conclusion] There are large difference of spatial distribution of SOC in Sanjiang Plain, and the distribution of surface SOC was affected by land use types.
Keywords:GIS  soil organic carbon density  geostatistic  Sanjiang Plain
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