中国烟草学报2013，Vol.19Issue(1)：21-25,5.DOI:10.3969/j.issn.1004-5708.2013.01.005
我国部分典型植烟区土壤腐殖质组成特征及其与部分土壤因子的关系
Relationships between humus chemical composition and soil factors in typical tobacco growing regions in China
摘要
Abstract
Relationships between humus chemical composition and soil factors in typical tobacco-growing regions were analyzed. Results showed that: (1) carbon content (TC) of soil humus ranged fromlO g/kg to 20 g/kg, with average of 15.25 g/kg. Proportions of humic acid (HA), fulvic acid (FA) and humin (HM) in humus carbon content were distributed in 11.05%-32.15%, 12.00%-36.28% and 38.43%-68.23%, respectively. Most of HA/FA ratios ranged from 0.7 to 1.3; (2) TC in tobacco growing regions in southeast China was significantly higher than in other regions, with Huanghuai region was the lowest. The HA/FA ratio of tobacco growing regions in southeast China was significantly higher than in others, with an average value of 1.14, while in other regions it was less than 1; (3) Carbon levels of TC and humus composition in paddy soil were the highest followed by purple, red, and brown soils. The humification degree of paddy soil was also much higher than others; (4) soil pH values were significantly negatively correlated with humus composition. Alkali-hydrolyzable nitrogen content increased with decreasing soil FA/TC, or increasing HA/FA.关键词
植烟区/腐殖质组成/土壤类型/pH/碱解氮Key words
tobacco growing area/ humus composition/ soil types/ pH/ alkali-hydro nitrogen分类
农业科技引用本文复制引用
马云飞,罗会斌,宋街明,莫江,杨承,李振华,蔡凯,尹启生..我国部分典型植烟区土壤腐殖质组成特征及其与部分土壤因子的关系[J].中国烟草学报,2013,19(1):21-25,5.基金项目
国家烟草专卖局(公司)资助项目"不同香型烟叶典型产区生态特征研究"(10200901003) （公司）
