[1]朱华,程先富,王世航,等.基于GIS的安徽省表层土壤颗粒分形特征研究[J].水土保持研究,2009,16(04):146-149,155.
　ZHU Hua,CHENG Xian-fu,WANG Shi-hang,et al.\[J].Research of Soil and Water Conservation,2009,16(04):146-149,155.
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基于GIS的安徽省表层土壤颗粒分形特征研究

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 16 期数: 2009年04期 页码: 146-149,155 栏目: 出版日期: 2009-08-20
Title:
\
作者:
朱华1,2, 程先富1,2, 王世航1,2,3, 谢勇1,2, 赵明松1,2
1. 安徽师范大学 国土资源与旅游学院, 安徽 芜湖 241003;
2. 安徽师范大学 安徽自然灾害过程与防控研究省级重点实验室, 安徽 芜湖 241003;
3. 中国科学院 南京土壤研究所, 南京 210008
Author(s):
ZHU Hua1,2, CHENG Xian-fu1,2, WANG Shi-hang1,2,3, XIE Yong1,2, ZHAO Ming-song1,2
1. College of Territorial Resources and Tourism, Anhui Normal University, Wuhu, Anhui 241003, China;
2. Key Laboratory of Natural Disaster Process and Prevention Research of Anhui Province, Anhui Normal University, Wuhu, Anhui 241003, China;
3. Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
关键词:
土壤颗粒; 分形维数; 空间分布; 环境因子; GIS; 安徽省
Keywords:
soil particle; fractal dimension; spatial distribution; environmental factors; GIS; Anhui province
分类号:
S152.4
摘要:
以第二次全国土壤普查数据为基础，运用分形模型，计算了安徽省表层（0-20 cm）土壤颗粒的分形维数；结合安徽省1：50万土壤数据库，利用GIS空间分析技术，探讨了表层土壤颗粒分形维数的空间分布特征及其与环境因子的关系，得出以下几点主要结论：（1） 表层土壤颗粒分形维数变化较大，从2.290 3~2.933 2，变幅达0.642 9；从空间分布上看，沿江江南和淮河以北地区分形维数较大，而江淮丘陵地区和大别山区分形维数相对较小。分形维数2.766 4~2.844 7之间的土壤，分布面积最大，达到65 349 km2，占安徽省总面积的48.28%；（2） 不同土壤类型下的土壤颗粒分形维数差别较大。分形维数最大的土壤类型为石灰岩土，达到2.859 7；最小的为粗骨土，只有2.598 1。（3）不同土地利用方式下的土壤颗粒分形维数差别明显。分形维数从大到小的顺序为：草地>耕地>园地>林地。（4）不同海拔下的土壤颗粒分形维数显著不同。随着海拔高度的增加，分形维数有逐渐减小的趋势。
Abstract:
Based on the data of the 2nd State Soil Survey and the fractal model, the soil particle fractal dimensions of topsoil (0-20 cm) in Anhui province were calculated in this paper. Taking advantage of spatial analysis technology of GIS, the spatial distribution characteristic of soil particle fractal dimensions and their relationship with environmental factors were discussed according to the 1:500 000 soil database of Anhui province. The soil particle fractal dimensions of topsoil vary from 2.290 3 to 2.933 2.The characteristic of their spatial distribution, generally speaking, is high in the district along as well as in the South of the Yangtze River, so is the district in the North of the Huaihe River, is low in the district of JiangHuai and Dabie Mountain. The area of the soil whose fractal dimensions vary from 2.766 4 to 2.844 7 is the largest, which amounts to 65 349 km2 and accounts for 48.28% of the whole area of Anhui province. The soil particle fractal dimensions of soil group differ widely each other. The fractal dimension of Limestone soils is 2.859 7 that is the highest while the fractal dimension of Skeletal soils is 2.598 1 that is the lowest. The soil particle fractal dimensions of different land use types are obviously different each other. The descending order of the fractal dimension is grassland, cultivated land, garden field and forest land. The soil particle fractal dimensions of different altitude differ greatly each other. With the altitude rising, the fractal dimension tends to descend gradually.

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备注/Memo

收稿日期:2009-02-19。
基金项目:安徽省软科学项目（06035020）；安徽省教育厅自然科学基金（2006kj185B）；安徽师范大学优秀创新团队建设计划
作者简介:朱华（1983-）女，安徽省霍邱县人，硕士研究生，从事资源遥感与土地利用方向的研究。E-mail：zhulia66@mail.ahnu.edu.cn

更新日期/Last Update: 1900-01-01