摘要
采用田间调查、取样及室内分析的方法,研究张家界5种不同植烟土壤类型的腐殖质含量、组成、性质。结果表明,胡敏酸碳含量由高到低为:黄壤>水稻土>黑色石灰土>红壤>紫色土;富里酸碳含量由高到低为:黄壤>水稻土>红壤>黑色石灰土>紫色土;胡敏素碳含量由高到低为:黑色石灰土>黄壤>水稻土>红壤>紫色土;胡敏酸/富里酸(HA/FA)为:黑色石灰土>紫色土>水稻土>红壤>黄壤。松结态腐殖质碳含量为:黄壤>黑色石灰土>水稻土>红壤>紫色土;紧结态腐殖质碳含量为黑色石灰土>黄壤>水稻土>红壤>紫色土;稳结态腐殖质碳含量为:红壤>黑色石灰土>黄壤>水稻土>紫色土;松/紧比值由高到低依次为:紫色土>红壤>水稻土>黄壤>黑色石灰土。这说明5种植烟土壤类型中黄壤的腐殖质含量最为丰富,紫色土的腐殖质品质最好,水稻土和黑色石灰土的腐殖质含量和品质均为中等,红壤最差。各腐殖质组分与有机质之间呈显著或极显著相关,胡敏酸和松结态腐殖质可作为衡量植烟土壤肥力的表征指标。
By means of field surveying,sampling and laboratory analyzing,it studied the contents,composition and properties of humus of 5 different tobacco-planting soil types in Zhangjiajie.The results showed that the carbon content of humic acid was yellow soilpaddy soilrendzinared soilpurple soil;the carbon content of fulvic acid was：yellow soilpaddy soilred soilrendzinapurple soil;the carbon content of humin was：rendzinayellow soilpaddy soilred soilpurple soil;the ratio HA/FA of 5 soil types was：rendzinapurple soilpaddy soilred soilyellow soil.The carbon content of loosely-combined humus was：yellow soil rendzinapaddy soilred soilpurple soil;the carbon content of tightly-combined humus was：rendzinayellow soilpaddy soilred soilpurple soil;the carbon content of stably-combined humus was：red soilrendzina yellow soilpaddy soilpurple soil;the ratio of loosely-combined humus/tightly-combined humus of 5 soil types was：purple soilred soilpaddy soilyellow soilrendzina.These showed that humus in yellow soil was the richest;the quality of humus in purple soil was the best.The content and quality of humus in paddy soil or rendzina were moderate;red soil was the poorest.Each component of humus and soil organic matter was correlated significantly.The content of humic acid or loosely-combined humus would be used as an indicator of fertility in tobacco-growing soil.
出处
《中国农学通报》
CSCD
北大核心
2011年第25期294-299,共6页
Chinese Agricultural Science Bulletin
基金
湖南省烟草专卖局项目"湖南典型烟叶产区生态特征及烟叶质量风格特色评价研究"(10-13Aa07)
湖南省烟草专卖局项目"湖南特色优质烟叶生产的土壤保育和养分资源综合管理技术研究"(08-10Aa02)
关键词
植烟土壤
腐殖质组成
土壤肥力
张家界
tobacco-growing soil
humus composition
soil fertility
Zhangjiajie
