| 紫色丘陵区侵蚀链的土壤基本性状及与侵蚀的关系 |
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| 引用本文： | 廖超林,何毓蓉.紫色丘陵区侵蚀链的土壤基本性状及与侵蚀的关系[J].西南农业学报,2006,19(2):200-205. |
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| 作者姓名： | 廖超林 何毓蓉 |
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| 作者单位： | 1. 中科院成都山地灾害与环境研究所,四川,成都,610041;中科院研究生院,北京,100039
2. 中科院成都山地灾害与环境研究所,四川,成都,610041 |
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| 基金项目： | 国家自然科学基金（40025103）;中国科学院知识创新工程项目（KZCX3-SW-330） |
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| 摘 要： | 对紫色丘陵区土壤侵蚀链不同地形部位的紫色土壤进行了采样和分析,研究发现,紫色丘陵区土壤侵蚀链中土壤性质随地形呈规律性变化特征,与冲刷剥离、搬运扩散及掩埋沉积作用的强度有关。该区坡顶、坡中土壤由于冲刷剥离、搬运扩散作用强烈,加之农耕改造作用,理化性质恶化,因此不适于农用;而坡脚掩埋沉积作用占主导作用,农用后仍可保持良好的土壤性质,适于农业利用。
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| 关 键 词： | 紫色丘陵区 土壤侵蚀链 地形 土壤基本性质 |
| 文章编号： | 1001-4829（2006）02-0200-06 |
| 收稿时间： | 2005-08-20 |
| 修稿时间： | 2005-08-20 |
Soil basic feature of erosive chain in purple hilly region and its relation to soil erosion |
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| LIAO Chao-lin,HE Yu-rong.Soil basic feature of erosive chain in purple hilly region and its relation to soil erosion[J].Southwest China Journal of Agricultural Sciences,2006,19(2):200-205. |
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| Authors: | LIAO Chao-lin HE Yu-rong |
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| Institution: | 1. Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Sichuan Chengdu 610041, China; 2.Post-graduate School, Chinese Academy of Sciences, Beijing 100039 ,China |
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| Abstract: | The samples of purple soil came from different landform characteristics of the soil eroive chain in purple hilly region were analysed.The results showed that the basic soil feature in soil erosive chain varied according to landform characteristics in purple hilly region and related to the intensity of the washing and denudation,transiting and diffusing and sediment and burying.As the intensive washing and denudation,transiting and diffusing,as well as the human tilth,the tilth was not suitable in top and middle slope based on worse soil physical and chemical properties,but the sediment and bury were primarily in the bottom slope and the tilth was suitable because of the well soil basic feature even if the tilth was conducted. |
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| Keywords: | purple hilly region soil erosive chain landform basic soil feature |
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