| 黑土区典型小流域土壤侵蚀空间格局模拟研究 |
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| 引用本文： | 张少良,刘威,张兴义,刘爽,李续峰,李浩.黑土区典型小流域土壤侵蚀空间格局模拟研究[J].水土保持通报,2013(4):224-227. |
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| 作者姓名： | 张少良 刘威 张兴义 刘爽 李续峰 李浩 |
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| 作者单位： | 东北农业大学资源与环境学院, 黑龙江 哈尔滨 150030;东北农业大学资源与环境学院, 黑龙江 哈尔滨 150030;中国科学院东北地理与农业生态研究所, 黑龙江 哈尔滨 150081;中国科学院东北地理与农业生态研究所, 黑龙江 哈尔滨 150081;中国科学院东北地理与农业生态研究所, 黑龙江 哈尔滨 150081;中国科学院东北地理与农业生态研究所, 黑龙江 哈尔滨 150081 |
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| 基金项目： | 国家自然科学基金青年项目“黑土区小流域土地养分空间分异规律及其主要驱动机制研究”(41101262);黑龙江省教育厅项目(12521010);东北农业大学博士启动基金(2012RCB03) |
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| 摘 要： | 利用校正后的基于GIS的USLE模型预测了黑土区域土壤侵蚀量的空间分布格局。研究结果表明,研究区小流域年侵蚀量值范围在0~60t/(hm2 a),无侵蚀、轻度侵蚀、中度侵蚀和强度侵蚀面积分别占研究区总面积的28.7%,56.2%,18.6%和0.1%。研究区坡顶土壤侵蚀量较少〔0~5t/(hm2 a)〕,坡肩和坡背侵蚀量较大〔3~15t/(hm2 a)〕。基于GIS的USLE不能够很好地模拟黑土区坡麓和坡足区域土壤沉积和侵蚀沟的空间分布格局,但可以较好地模拟坡顶、坡肩和坡背处的土壤流失状况。
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| 关 键 词： | 黑土 侵蚀沉积 侵蚀沟 空间格局 |
| 收稿时间： | 9/4/2012 12:00:00 AM |
| 修稿时间： | 2012/11/20 0:00:00 |
Spatial Pattern Prediction of Soil Erosion in Small Typical Watersheds in Black Earth Region |
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| ZHANG Shao-liang,LIU Wei,ZHANG Xing-yi,LIU Shuang,LI Xu-feng and LI Hao.Spatial Pattern Prediction of Soil Erosion in Small Typical Watersheds in Black Earth Region[J].Bulletin of Soil and Water Conservation,2013(4):224-227. |
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| Authors: | ZHANG Shao-liang LIU Wei ZHANG Xing-yi LIU Shuang LI Xu-feng and LI Hao |
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| Institution: | College of Resources and Environment, Northeast Agricultural University, Harbin, Heilongjiang 150030, China;College of Resources and Environment, Northeast Agricultural University, Harbin, Heilongjiang 150030, China;Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin, Heilongjiang 150081, China;Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin, Heilongjiang 150081, China;Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin, Heilongjiang 150081, China;Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin, Heilongjiang 150081, China |
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| Abstract: | GIS-based USLE(Universal soil loss equation)was used to predict the spatial pattern of soil erosion in the black earth region of China.The primary results indicated that soil loss was 0~60t/(hm2 a)in the study area with the area of zero erosion,slight erosion,moderate erosion,intensity erosion,accounting for 28.7%,56.2%,18.6% and 0.1%respectively.The little soil loss occurred with 0~5t/(hm2 a)at the top of slope,big soil loss of 3~15t/(hm2 a)on the slope shoulder and back slope.GIS-based USLE can efficiently predicted soil loss distribution on top of the slope,slope shoulder and back slope other than the distribution of soil deposit and gullies at the foot of the slope. |
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| Keywords: | black earth soil erosion and deposit gully spatial pattern |
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