Study on the Humin Composition in Different Soil Types

LI Kai DOU Sen~

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Study on the Humin Composition in Different Soil Types

更新时间：2024-11-07

- Study on the Humin Composition in Different Soil Types
- Vol. 22, Issue 3, (2008)
- 作者机构：
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  CLC： S153
- Published：2008
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LI Kai DOU Sen~. Study on the Humin Composition in Different Soil Types[J]. 2008, 22(3).
DOI：

LI Kai DOU Sen~. Study on the Humin Composition in Different Soil Types[J]. 2008, 22(3). DOI：

摘要

胡敏素(HM)是腐殖物质的主要组成部分

在碳截获、土壤结构、养分保持、生物地球化学循环等方面都占有重要的作用.采用Pallo修改法对HM进行了分组

将其分为铁结合胡敏素(HMi)、粘粒结合胡敏素(HMc)和不溶性胡敏素(HMr).并将这三种物质定义为HM的组成

同时把HMi/HMc和(HMi HMc)/HM作为HM组成的表征指标.研究了不同类型土壤的HM组成.结果表明:不同类型土壤中HM各组分含量.HMi/HMc

(HMi HMc)/HM

△lgk均各不相同;(HMi HMc)/HM>20%;除黑钙土外

HMi/HMc>1

且HM组成中HMr含量最多

HMi其次

HMc最少;HMi相对数量为黑土最高

黑钙土最低

HMc相对数量为黑钙土最高

棕壤最低

HMr相对数量为水稻土最高

黑土最低.在不同类型土壤(水稻土除外)中可溶性HM组分的△lgk值为HMi>HMc

HMi的分子结构比HMc的简单

而且棕壤HMi

HMc的△lgk值均最高

结构最简单.

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Related Author

XIAO Yan-chun

LI Kai

DOU Sen

ZHAN Xiu-mei

WANG Ying

WANG Ye-qing

MA Ling-ling

HAN Xiao-ri

Related Institution

中国科学院新疆生态与地理研究所,新疆,乌鲁木齐,830011中国科学院研究生院,北京,100049中国科学院阜康荒漠生态系统研究站,新疆,阜康

College of Environmental Sciences and Engineering, Liaoning Technical University

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