| 黑土区土壤侵蚀的REE示踪法研究 |
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| 引用本文： | 王宁,杨春雨,张刚,许平芝,邹婷婷.黑土区土壤侵蚀的REE示踪法研究[J].地理科学,2008,28(4). |
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| 作者姓名： | 王宁 杨春雨 张刚 许平芝 邹婷婷 |
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| 作者单位： | 东北师范大学城市与环境科学学院,吉林,长春,130024 |
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| 基金项目： | 吉林省科技厅科研项目，东北师范大学分析测试基金 |
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| 摘 要： | 应用定位小区段面法实验和稀土元素示踪剂检测,选择吉林省长春市净月开发区和永吉县的两块黑土实验小区进行土壤侵蚀过程研究,探讨了稳定性稀土元素示踪法应用于黑土区土壤侵蚀、沉积、分布和发生过程研究的可能性,并计算出坡面不同部位的侵蚀量与相对侵蚀量,较好地描述降雨对坡面的侵蚀过程.实验表明,坡面的土壤侵蚀率随降雨时间而加大;7°～12°坡面的最大土壤侵蚀量出现在坡面中部和下部(为Nd、Sm和Eu所标记的坡段).降雨时间和地形坡度大小影响土壤颗粒运动的速度和方向,是土壤侵蚀发生的主要因素.
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| 关 键 词： | 土壤侵蚀 稀土元素 坡面 黑土区 |
Soil Erosion of Soil REE Tracer Study |
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| WANG Ning,YANG Chun-Yu,ZHANG Gang,XU Ping-Zhi,ZOU Ting-Ting.Soil Erosion of Soil REE Tracer Study[J].Scientia Geographica Sinica,2008,28(4). |
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| Authors: | WANG Ning YANG Chun-Yu ZHANG Gang XU Ping-Zhi ZOU Ting-Ting |
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| Institution: | College of Urban and Environmental Sciences;Northeast Normal University;Changchun 130024 |
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| Abstract: | By using fixed field profile experiment and Rare Earth Elements(REE) tracer technique,we studied the course of soil erosion on two parcels of black soil in Jingyue Economic Development District,Changchun City,and Yongji County,Jilin City,Jilin Province.The stable REE were used in tracing soil erosion,sedimentation,distribution and the possibility of erosion process in black soil area,soil erosion and the relative soil erosion of different parts of the slope were worked out,and effect of rainfall on the slop... |
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| Keywords: | soil erosion REE slope black soil |
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