大别山低海拔区不同植被类型土壤生物学特性

王伟波; 葛萍; 达良俊; 朱云峰; 王翠平

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王伟波，葛萍，达良俊，朱云峰，王翠平.大别山低海拔区不同植被类型土壤生物学特性[J].广东农业科学,2014,41(14):51-56

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Biological characteristics of soil in different vegetation types at the low altitude of Mt. Dabie

DOI：

中文关键词: 土壤养分土壤微生物土壤酶活植被类型

英文关键词: soil nutrients soil microorganism soil enzyme activity vegetation types

基金项目:国家自然科学基金（40971041）；上海市科学技术委员会科研计划项目（08DZ1203102）

作者	单位
王伟波，葛萍，达良俊，朱云峰，王翠平	华东师范大学生态与环境科学学院；华东师范大学城市化生态过程与生态恢复重点实验室；浙江天童森林生态系统国家野外科学观测研究站；黄尾镇林业站

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中文摘要:

以大别山低海拔区常绿阔叶林、落叶阔叶林、针阔混交林、杉木林和毛竹林林下土壤为研究对象，系统分析了土壤养分、土壤微生物含量和土壤酶含量大小。结果表明：（1）不同植被类型土壤有机质（SOM）、全碳（TC）、全氮（TN）、全磷（TP）、全钾（TK）、有效磷（AP）和速效钾（AK）含量均差异显著。SOM、TC 和TN 含量表现为阔叶林跃竹林跃针叶林。毛竹林土壤TP（0.37±0.05g/kg）、AP（17.2±0.05 mg/kg）、TK（6.15±0.02 g/kg）和AK（80.31±0.05 mg/kg）都处于较高水平，杉木林土壤TK（7.18±0.05 g/kg）最高，但其他养分含量均较低，常绿阔叶林TK（1.73±0.05 g/kg）含量最低，其他养分含量均处于中上等水平。（2）不同植被类型土壤微生物碳、土壤微生物氮和土壤微生物磷含量的变化范围分别为249.0~780.1、59.27~190.1、30.95~107.1 mg/kg，在不同植被类型中差异均显著。（3）不同植被类型土壤酶含量差异显著，常绿阔叶林的脲酶（0.98±0.01 mg/g·d）、蛋白酶（0.22±0.02 mg/g·d）、磷酸酶（30.01±1.02 mg/g·d）和蔗糖酶（22.14±1.03 mg/g·d）含量均最高。

英文摘要:

This study was conducted at the low altitude of Mt. Dabie. The concentrations of soil nutrients, microbial biomass and enzyme content under 5 different vegetation types were determined, including evergreen broad-leaved forest, broadleaved deciduous forest, coniferous -broadleaved mixed forest, Cunninghamia lanceolata grove and Phyllostachys edulis grove. The results showed that there were significant differences among the contents of soil organic matter(SOM), total carbon(TC), total nitrogen(TN), total phosphorus(TP), total potassium(TK), available phosphorus(AP) and available potassium(AK) among the different vegetation types(P约0.05). The contents of SOM, TC and TN were in the order of broadleaved forest>P. edulis grove>coniferous forest under different vegetation types. The contents of soil TP (0.37依0.05 g/kg), AP (17.2依0.05 mg/kg), TK (6.15依0.02 g/kg) and AK (80.31依0.05 mg/kg) were at a higher level in the P. edulis grove. Except for the content of soil TK (7.18依0.05 g/kg) was the highest in C. lanceolata grove, soil nutrients were lower in the other vegetation types. The content of soil TK (1.73依0.05 g/kg) in the evergreen broad-leaved forest was the lowest, while other contents of soil nutrients were relatively high. Soil microbial biomass carbon, microbial biomass nitrogen and microbial biomass phosphorus contents were 249.0~780.1, 59.27~190.1, and 30.95~107.1 mg/kg, respectively. There was a significant difference in the contents of soil microbial biomass among the different vegetation types(P约0.05). Compared with other vegetation types, the content of soil enzyme of urease (0.98依0.01 mg/g窑d), protease (0.22依0.02 mg/g窑d), phosphatase (30.01依1.02 mg/g窑d) and sucrose (22.14依1.03 mg/g窑d) were the highest in the evergreen broad-leaved forest (P约0.05).

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