海南东寨港红树林土壤粒径分布的分形特征及其影响因素

生态学杂志

海南东寨港红树林土壤粒径分布的分形特征及其影响因素

刘美龄;叶勇;曹长青;唐飞龙

厦门大学近海海洋环境科学国家重点实验室，福建厦门 361005

收稿日期:2007-12-28 修回日期:1900-01-01 出版日期:2008-09-10 发布日期:2008-09-10

Fractal characteristics and related affecting factors of particle size distribution in mangrove soils in Dongzhai Harbor of Hainan.

LIU Mei-ling;YE Yong;CAO Chang-qing;TANG Fei-long

State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361005, Fujian, China

Received:2007-12-28 Revised:1900-01-01 Online:2008-09-10 Published:2008-09-10

摘要/Abstract

摘要： 应用分形理论分析了海南东寨港红树林土壤粒径分布的分形特征及其影响因素，海南东寨港土壤的分形维数为2.302～2.575，分形维数的大小与土壤中的粘粒、盐分、有机质、全氮含量呈显著正相关，外滩红树林土壤的分形维数低于中滩和内滩；随着土壤质地由砂壤土、轻壤土、中壤土、重壤土的变化，分形维数逐渐增大；从陆到海土壤分形维数逐渐减小。群落类型、土壤质地、滩位、含盐量、有机质、全氮含量等是影响海南东寨港红树林土壤分形维数的主要因子。

关键词: 石榴园, 棉蚜, 天敌

Abstract: The analysis with fractal theory on the fractal characteristics and related affecting factors of particle size distribution in mangrove soils in Dongzhai Harbor of Hainan showed that the fractal dimension of mangrove soils ranged from 2.302-2.575. There was a significant positive linear relationship between the fractal dimension and the contents of soil clay, salts, organic matter and total nitrogen. The fractal dimension was lower in outside beach than in middle and inner beach, and changed with soil texture, being in the order of sandy loam<light loam<medium loam<heavy loam. From land to sea, the fractal dimension decreased gradually. The main factors affecting the fractal dimension were community type, soil texture, beach position, soil salinity, and organic matter and total nitrogen contents.

Key words: Megranate field, Aphis gossypii, Natural enemies

刘美龄;叶勇;曹长青;唐飞龙 . 海南东寨港红树林土壤粒径分布的分形特征及其影响因素[J]. 生态学杂志.

LIU Mei-ling;YE Yong;CAO Chang-qing;TANG Fei-long . Fractal characteristics and related affecting factors of particle size distribution in mangrove soils in Dongzhai Harbor of Hainan. [J]. cje.

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