分形理论在集材道土壤团聚体研究中的应用

应用生态学报 ›› 2005, Vol. 16 ›› Issue (9): 1791-1794.

分形理论在集材道土壤团聚体研究中的应用

李军锋, 赵秀海

北京林业大学, 省部共建森林培育与保护教育部重点实验室, 北京 100083

收稿日期:2005-04-08 修回日期:2005-05-30 出版日期:2005-09-15 发布日期:2005-09-15
通讯作者: 李军锋,男,1978年生,硕士生.主要从事森林生态和集材道研究.Tel:010-62391394;E-mail:cnlijunfeng@sohu.com
基金资助:
国务院三峡水利建设委员会及国家林业局项目(SX2001-012)、中国林业科学研究院基金项目(2005)和国家林业局森林生态环境实验室基金资助项目.

Application of fractal theory in studying soil aggregates under different skidding modes

LI Junfeng, ZHAO Xiuhai

Key Laboratory for Silviculture and Conservation of Education Ministry, Beijing Forestry University, Beijing 100083, China

Received:2005-04-08 Revised:2005-05-30 Online:2005-09-15 Published:2005-09-15

摘要/Abstract

Abstract: In this paper,the characters of soil aggregates under different skidding modes were investigated by fractal theory.The results showed that the particle fraction of soil aggregates was smaller under tractor- than under animal traction skidding.As for different parts of skidding road,the particle fraction of air-dried soil aggregates was in the order of bottom (2.309) > middle (2.291) > upper (2.014),while that of water-stable aggregates followed the sequence of bottom (2.04) < middle (2.143) < upper (2.262).The particle fraction of aggregates was 2.215 in forest soil and 2.175 in skidding roads.Skidding movement could improve soil aggregates when the cutting intensity was 15%.Tractor skidding was more favorable for soil aggregates formation.

Key words: Fractal theory, Skidding mode, Soil aggregates, Cutting intensity

中图分类号:

S152.4

李军锋, 赵秀海. 分形理论在集材道土壤团聚体研究中的应用[J]. 应用生态学报, 2005, 16(9): 1791-1794.

LI Junfeng, ZHAO Xiuhai . Application of fractal theory in studying soil aggregates under different skidding modes[J]. Chinese Journal of Applied Ecology, 2005, 16(9): 1791-1794.

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