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| 旱地紫色土团聚体特征的指标比较 | |
| 引用本文： | 骆东奇,侯春霞,魏朝富,谢德体,朱波.旱地紫色土团聚体特征的指标比较[J].山地学报,2003,21(3):348-353. |
| 作者姓名： | 骆东奇 侯春霞 魏朝富 谢德体 朱波 |
| 作者单位： | 1. 西南农业大学资源环境学院,重庆,400716;广西大学农学院,广西,南宁,530005 2. 西南农业大学资源环境学院,重庆,400716 3. 中国科学院、水利部成都山地灾害与环境研究所,四川,成都,610041 |
| 基金项目： | 教育部博士点基金(The Doctorate Fund of Education Ministy)(2000062505)资助，中国科学院知识创新工程 |
| 摘 要： | 土壤团聚体是土壤肥力的基础，团聚体结构对土壤肥力有重要的影响。用团聚体几何平均直径(GMD)、平均重量直径(MWD)、粒径分布分形维(D)和表面分形维(P)分别对紫色土团聚体及水稳性团聚体进行分析：几何平均直径(GMD)、平均重量直径(MWD)、粒径分布分形维(D)和表面分形维(P)从不同角度反映紫色土团聚体特征；几何平均直径(GMD)、平均重量直径(MWD)对团聚体和水稳性团聚体分布均能较好地反映；粒径分布分形维(D)和表面分形维(P)能更好地反映团聚体的水稳性和抗蚀性，是描述土壤团聚体水稳性和抗蚀性的新指标和新方法。 |
| 关 键 词： | 土壤团聚体 粒径分布分形维 表面分形维 |
| 文章编号： | 1008-2786(2003)03-0348-06 |
| 修稿时间： | 2002年10月11 |
Study on the Indices to the Features of Purple Soil Aggregates |
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| LUO Dong-qi,HOU Chun-xia,WEI Chaofu,XIE De-ti and ZHU Bo.Study on the Indices to the Features of Purple Soil Aggregates[J].Journal of Mountain Research,2003,21(3):348-353. | |
| Authors: | LUO Dong-qi HOU Chun-xia WEI Chaofu XIE De-ti and ZHU Bo |
| Abstract: | Soil aggregate was the foundation of soil fertility on which soil aggregate structure had vital effect. Purple soil aggregates and water-stable aggregates were analyzed by using geometric mean diameter (GMD), mean weight diameter (MWD), diameter distributing fractal dimension(D) and aggregate surface fractal di-mension(P) . The results showed that geometric mean diameter (GMD) , mean weight diameter (MWD) , diameter distributing fractal dimension (D) and aggregate surface fractal dimension (P) may reflect purple soil aggregate; GMD, MWD revealed some characteristics of soil aggregates and water-stable aggregates; diameter distributing fractal dimension ( D ) and aggregate surface fractal dimension ( P) may reflect the water stability and erosion resistance of aggregates, which were new indices. |
| Keywords: | soil aggregate diameter distributing fractal dimension aggregate surface fractal dimension |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |