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A GIS-based Modeling Approach for Fast Assessment of Soil Erosion by Water at Regional Scale, Loess Plateau of China

HU Liangjun,  YANG Haijun,  YANG Qinke,  LI Rui

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文章导航 > Chinese Geographical Science  > 2010 >  20(5): 423-433
HU Liangjun, YANG Haijun, YANG Qinke, LI Rui. A GIS-based Modeling Approach for Fast Assessment of Soil Erosion by Water at Regional Scale, Loess Plateau of China[J]. 中国地理科学, 2010, 20(5): 423-433. doi: 10.1007/s11769-010-0416-2
引用本文: HU Liangjun, YANG Haijun, YANG Qinke, LI Rui. A GIS-based Modeling Approach for Fast Assessment of Soil Erosion by Water at Regional Scale, Loess Plateau of China[J]. 中国地理科学, 2010, 20(5): 423-433. doi: 10.1007/s11769-010-0416-2
shu
HU Liangjun, YANG Haijun, YANG Qinke, LI Rui. A GIS-based Modeling Approach for Fast Assessment of Soil Erosion by Water at Regional Scale, Loess Plateau of China[J]. Chinese Geographical Science, 2010, 20(5): 423-433. doi: 10.1007/s11769-010-0416-2
Citation: HU Liangjun, YANG Haijun, YANG Qinke, LI Rui. A GIS-based Modeling Approach for Fast Assessment of Soil Erosion by Water at Regional Scale, Loess Plateau of China[J]. Chinese Geographical Science, 2010, 20(5): 423-433. doi: 10.1007/s11769-010-0416-2
shu

A GIS-based Modeling Approach for Fast Assessment of Soil Erosion by Water at Regional Scale, Loess Plateau of China

doi: 10.1007/s11769-010-0416-2
  • 1.

    Key Laboratory for Vegetation Ecology of Ministry of Education, Northeast Normal University, Changchun 130024, China;

  • 2.

    Institute of Soil and Water Conservation, Chinese Academy of Sciences, Yangling 712100, China

基金项目: Under the auspices of Northeast Normal University Sci-tech Innovation Incubation Program(No.NENU-STC08017);European Commission FP7 Project―PRACTICE(No.ENVI-2008-226818)
详细信息
    通讯作者:

    HU Liangjun.E-mail:hulj068@nenu.edu.cn

A GIS-based Modeling Approach for Fast Assessment of Soil Erosion by Water at Regional Scale, Loess Plateau of China

  • 1.

    Key Laboratory for Vegetation Ecology of Ministry of Education, Northeast Normal University, Changchun 130024, China;

  • 2.

    Institute of Soil and Water Conservation, Chinese Academy of Sciences, Yangling 712100, China

Funds: Under the auspices of Northeast Normal University Sci-tech Innovation Incubation Program(No.NENU-STC08017);European Commission FP7 Project―PRACTICE(No.ENVI-2008-226818)

  • 摘要: The objective of this study is to develop a unique modeling approach for fast assessment of massive soil erosion by water at a regional scale in the Loess Plateau, China. This approach relies on an understanding of both regional patterns of soil loss and its impact factors in the plateau area. Based on the regional characteristics of precipitation, vegetation and land form, and with the use of Landsat TM and ground investigation data, the entire Loess Plateau was first divided into 3 380 Fundamental Assessment Units (FAUs) to adapt to this regional modeling and fast assessment. A set of easily available parameters reflecting relevant water erosion factors at a regional scale was then developed, in which dynamic and static factors were discriminated. ArcInfo GIS was used to integrate all essential data into a central database. A resulting mathematical model was established to link the sediment yields and the selected variables on the basis of FAUs through overlay in GIS and multiple regression analyses. The sensitivity analyses and validation results show that this approach works effectively in assessing large area soil erosion, and also helps to understand the regional associations of erosion and its impact factors, and thus might significantly contribute to planning and policymaking for a large area erosion control in the Loess Plateau.
    Abstract: The objective of this study is to develop a unique modeling approach for fast assessment of massive soil erosion by water at a regional scale in the Loess Plateau, China. This approach relies on an understanding of both regional patterns of soil loss and its impact factors in the plateau area. Based on the regional characteristics of precipitation, vegetation and land form, and with the use of Landsat TM and ground investigation data, the entire Loess Plateau was first divided into 3 380 Fundamental Assessment Units (FAUs) to adapt to this regional modeling and fast assessment. A set of easily available parameters reflecting relevant water erosion factors at a regional scale was then developed, in which dynamic and static factors were discriminated. ArcInfo GIS was used to integrate all essential data into a central database. A resulting mathematical model was established to link the sediment yields and the selected variables on the basis of FAUs through overlay in GIS and multiple regression analyses. The sensitivity analyses and validation results show that this approach works effectively in assessing large area soil erosion, and also helps to understand the regional associations of erosion and its impact factors, and thus might significantly contribute to planning and policymaking for a large area erosion control in the Loess Plateau.
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  • 收稿日期:  2010-02-05
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A GIS-based Modeling Approach for Fast Assessment of Soil Erosion by Water at Regional Scale, Loess Plateau of China

doi: 10.1007/s11769-010-0416-2
  • 1. Key Laboratory for Vegetation Ecology of Ministry of Education, Northeast Normal University, Changchun 130024, China;
  • 2. Institute of Soil and Water Conservation, Chinese Academy of Sciences, Yangling 712100, China
    • 基金项目:  Under the auspices of Northeast Normal University Sci-tech Innovation Incubation Program(No.NENU-STC08017);European Commission FP7 Project―PRACTICE(No.ENVI-2008-226818)
    通讯作者: HU Liangjun.E-mail:hulj068@nenu.edu.cn
  • 收稿日期: 2010-02-05
  • 修回日期: 2010-06-10
  • 刊出日期: 2010-09-15

摘要: The objective of this study is to develop a unique modeling approach for fast assessment of massive soil erosion by water at a regional scale in the Loess Plateau, China. This approach relies on an understanding of both regional patterns of soil loss and its impact factors in the plateau area. Based on the regional characteristics of precipitation, vegetation and land form, and with the use of Landsat TM and ground investigation data, the entire Loess Plateau was first divided into 3 380 Fundamental Assessment Units (FAUs) to adapt to this regional modeling and fast assessment. A set of easily available parameters reflecting relevant water erosion factors at a regional scale was then developed, in which dynamic and static factors were discriminated. ArcInfo GIS was used to integrate all essential data into a central database. A resulting mathematical model was established to link the sediment yields and the selected variables on the basis of FAUs through overlay in GIS and multiple regression analyses. The sensitivity analyses and validation results show that this approach works effectively in assessing large area soil erosion, and also helps to understand the regional associations of erosion and its impact factors, and thus might significantly contribute to planning and policymaking for a large area erosion control in the Loess Plateau.

English Abstract

HU Liangjun, YANG Haijun, YANG Qinke, LI Rui. A GIS-based Modeling Approach for Fast Assessment of Soil Erosion by Water at Regional Scale, Loess Plateau of China[J]. 中国地理科学, 2010, 20(5): 423-433. doi: 10.1007/s11769-010-0416-2
引用本文: HU Liangjun, YANG Haijun, YANG Qinke, LI Rui. A GIS-based Modeling Approach for Fast Assessment of Soil Erosion by Water at Regional Scale, Loess Plateau of China[J]. 中国地理科学, 2010, 20(5): 423-433. doi: 10.1007/s11769-010-0416-2
shu
HU Liangjun, YANG Haijun, YANG Qinke, LI Rui. A GIS-based Modeling Approach for Fast Assessment of Soil Erosion by Water at Regional Scale, Loess Plateau of China[J]. Chinese Geographical Science, 2010, 20(5): 423-433. doi: 10.1007/s11769-010-0416-2
Citation: HU Liangjun, YANG Haijun, YANG Qinke, LI Rui. A GIS-based Modeling Approach for Fast Assessment of Soil Erosion by Water at Regional Scale, Loess Plateau of China[J]. Chinese Geographical Science, 2010, 20(5): 423-433. doi: 10.1007/s11769-010-0416-2
shu

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