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| 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 | |
| 引用本文： | 奚小环,张建新,廖启林,陈德友,白荣杰,黄增芳.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. |
| 作者姓名： | 奚小环 张建新 廖启林 陈德友 白荣杰 黄增芳 |
| 作者单位： | 1. 中国地质调查局,北京,100011 2. 湖南省地质研究所,长沙,410007 3. 江苏省地质调查院,南京,210018 4. 四川省地质调查院,成都,610081 5. 吉林省地质调查院,长春,130061 6. 内蒙古自治区地质调查院,呼和浩特,010020 |
| 基金项目： | 多目标生态农业地球化学调查(批准号:基[2004]012),湖南省洞庭湖区1∶25万多目标区域地球化学调查(批准号:基[2003]014-01),江苏省国土生态地球化学调查(批准号:水[2003]019-01),四川省成都经济区1∶25万多目标区域地球化学调查(批准号:基[2003]012-01),吉林省1∶25万多目标区域地球化学调查(批准号:基[2004]012-08),内蒙古河套农业经济区生态地球化学调查(批准号:基[2004]012-10)共同资助 |
| 摘 要： | 在全国多目标区域地球化学调查获得土壤高密度和大数据量碳分布数据基础上,提出"单位土壤碳含量"概念和建立土壤碳储量实测计算方法,为精确计算土壤碳储量和估算土壤碳库提供了新的途径。依据"单位土壤碳含量"进行土壤碳储量实测计算,可以按照土壤类型、土地利用分类、生态系统及自然景观等任意划分方式,从不同途径取得市县、省区、流域及至国家土壤碳储量,并在各级次上进行土壤碳库问题研究,解决土地利用、农业种植和环境评估中的实际问题。文章以江苏、湖南、四川、吉林、内蒙古为例进行土壤有机碳储量计算,结果表明,全国土壤碳储量分布不均匀。按照土壤有机碳储量和土壤平均有机碳储量分布,四川省四川盆地西部区土壤有机碳储量为1779887583t,平均有机碳储量最高,为29107.86t/km2;依次为:吉林省平原区有机碳储量2618973357t,平均有机碳储量27427.25t/km2;湖南省洞庭湖区有机碳储量837159672t,平均有机碳储量21977.31t/km2;江苏省有机碳储量1818603526t,平均有机碳储量17117.61t/km2;内蒙古河套地区有机碳储量286247058t,平均有机碳储量9592.73t/km2。 |
| 关 键 词： | 多目标区域地球化学调查 采样与测试 单位土壤碳含量 实测计算方法 土壤碳储量 土壤平均碳储量 研究级次划分 实例 |
| 文章编号： | 1001-7410（2008）01-58-10 |
| 收稿时间： | 2007-06-20 |
| 修稿时间： | 2007-09-28 |
MULTI-PURPOSE REGIONAL GEOCHEMICAL SURVEY AND SOIL CARBON RESERVES PROBLEM:EXAMPLES OF JIANGSU,HENAN,SICHUAN,JILIN PROVINCES AND INNER MONGOLIA |
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| Xi Xiaohuan,Zhang Jianxin,Liao Qilin,Chen Deyou,Bai Rongjie,Huang Zengfang.MULTI-PURPOSE REGIONAL GEOCHEMICAL SURVEY AND SOIL CARBON RESERVES PROBLEM:EXAMPLES OF JIANGSU,HENAN,SICHUAN,JILIN PROVINCES AND INNER MONGOLIA[J].Quaternary Sciences,2008,28(1):58-67. | |
| Authors: | Xi Xiaohuan Zhang Jianxin Liao Qilin Chen Deyou Bai Rongjie Huang Zengfang |
| Institution: | 1. China Geological Survey, Beijiang 100011; 2. Henan Geology Institute, Changsha 410007; 3. Jiangsu Institute of Geological Survey, Nanjing 210018; 4. Sichuan Institute of Geological Survey, Chengdu 610081; 5. Jilin Institute of Geological Survey, Changchun 130061; 6. Inner Mongolia Institute of Geological Survey, Hohhot 010020 |
| Abstract: | Based on the huge amount of soil carbon data high densely obtained by national multi-purpose regional geochemical survey the concept of unit carbon content was put forward and the measurement calculation method of soil carbon reserves was set up.This provided a new approach to calculate soil carbon reserves accurately and estimate soil carbon pool.Based on the concept of unit carbon content we can calculate soil carbon reserves using regional survey data according to soil type,land use,ecosystem,natural landscape,and any other classification system respectively so as to achieve soil carbon reserves at county,provincial,and national levels,which can be used to solve soil carbon pool problems on land use,agricultural cultivation,and environmental assessment at different levels.This paper lists the calculation results of soil carbon reserves from Jiangsu,Henan,Sichuan,Jilin Provinces and Inner Mongolia.It is clear that soil carbon reserves is in homogenous at the national level.Soil organic carbon reserves in west Sichuan Basin of Sichuan Province is 1779887583t and its average soil organic carbon reserves is 29107.86t/km2.Soil organic carbon reserves and average soil organic carbon reserves in other regions are listed in the following:Jilin Province,2618973357t and 27427.25t/km2;Henan Province,837159672t and 21977.31t/km2;Jiangsu Province,1818603526t and 17117.61t/km2;Inner Mongolia,286247058t and 9592.73t/km2. |
| Keywords: | multi-purpose regional geochemical survey unit soil carbon content soil carbon reserves average soil carbon reserves |
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