| 川中紫色丘陵区人工林表层土壤侵蚀率与土壤结构性关系 |
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| 引用本文： | 张保华,刘子亭,周长辉.川中紫色丘陵区人工林表层土壤侵蚀率与土壤结构性关系[J].林业资源管理,2005(5):51-54,65. |
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| 作者姓名： | 张保华 刘子亭 周长辉 |
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| 作者单位： | 聊城大学环境与规划学院,山东,聊城,252059 |
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| 基金项目： | 中国科学院知识创新工程项目，中国科学院专项基金，山东省博士科研项目 |
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| 摘 要： | 川中紫色丘陵区人工林下土壤侵蚀现象较为严重,在中国科学院盐亭农业生态试验站取土样分析了表层土壤结构性,研究其与表层土壤侵蚀率的关系。结果表明:研究区人工林土壤团聚体稳定性较差、非毛管孔隙数量少;表层土壤侵蚀率(SER)较大并与>0.25mm水稳性团聚体含量(WSA)、结构体破坏率(SPBR)、团聚体平均重量直径差值(MWDC)、非毛管孔隙度具有明显的对应关系。简要分析了土壤结构性差、侵蚀严重的原因,同时提出了改进措施。
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| 关 键 词： | 川中紫色丘陵区 人工林 土壤团聚体 土壤非毛管孔隙 表层土壤侵蚀率 |
| 文章编号： | 1002-6622（2005）05-0051-04 |
| 收稿时间： | 2005-03-15 |
| 修稿时间： | 2005-03-152005-07-06 |
Topsoil Erosion Ratio and Its Relationship with Structure Properties under Artificial Forest in Purple Hilly Areas of Sichuan |
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| ZHANG Baohua,LIU Ziting,ZHOU Changhui.Topsoil Erosion Ratio and Its Relationship with Structure Properties under Artificial Forest in Purple Hilly Areas of Sichuan[J].Forest Resources Management,2005(5):51-54,65. |
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| Authors: | ZHANG Baohua LIU Ziting ZHOU Changhui |
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| Institution: | College of Environment and Planning, Liaocheng University, Liaocheng 252059, Shandong Province, China |
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| Abstract: | To study the reasons of intensive erosion of artificial forest in hilly area of Sichuan,this paper analyzes the topsoil structural properties and its relationship with surface soil erosion ratio by using soil samples taken from Yanting Agro-ecosystem Station,Chinese Academy of Sciences.The results show that soil aggregates are very unwaterstable and non-capillary pores are little;the surface soil erosion is extensive and relate well with waterstable aggregates larger than 0.25mm,structure ped breaking ration,aggregates mean weight diameter change,and non-capillary pores.The reasons of unstable structure and intensive soil erosion,and some countermeasures are analyzed and given briefly. |
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| Keywords: | purple hilly area of Sichuan artificial forest soil aggregates non-capillary pores topsoil erosion ratio |
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