南京林业大学学报（自然科学版）2017，Vol.41Issue(3)：37-42,6.DOI:10.3969/j.issn.1000-2006.201605023
不同森林群落类型土壤蚯蚓数量和生物量的时空分布特征
Spatio-temporal distribution characteristics of soil earthworm number and biomass under different forest communities
摘要
Abstract
[Objective] It is important to understand the effects of different forest types on the spatiotemporal dynamics of earthworm number and biomass in soil.[Methods] The electric shock method was used to explore the spatiotemporal patterns of earthworm number (density) and biomass in three forest types in Kunming City,Yunnan Province.The correlations between the soil physical and chemical environment and soil earthworm number (density) and biomass changes were assessed by the analyses of correlation and variance among the three forest communities.[Results] Forest community type had significant effects on earthworm number (P =0.001) and biomass (P =0.006).The order of soil earthworm number was Pinus yunnanensis community ＞ Eucalyptus maideni community＞open forest community,and that of earthworm biomass was P.yunnanensis community＞open forest community＞E,maideni community.The temporal variation of both measures were ranked in the order September＞November＞October.The earthworm number and biomass in the E.maideni community and the P.yunnanensis community were mainly distributed in the ≥ 5-10 cm soil layer,and those in open forest were mainly concentrated in the 0-5 cm soil layer.Soil physicochemical properties had diverse effects on earthworm number and biomass.Soil pH,soil temperature and nitrogen hydrolysis showed positive correlations with earthworm number and biomass in the E.maideni community (P＜0.05).However,while soil water content,soil organic matter and total nitrogen had similar spatiotemporal changes as the variation of earthworm number and biomass,they were not significantly correlated with the earthworm number and biomass.In the P.yunnanensis community and open forest community,earthworm number and biomass were significantly correlated with soil temperature (P＜0.05),but soil water content,soil organic matter,total nitrogen,soil hydrolyzable nitrogen had no significant correlations with earthworm number and biomass.[Conclusion] There were significant differences in the spatiotemporal distributions of soil earthworm number and biomass under the three forest types,and the differences were closely related to the changes in soil physicochemical properties (e.g.,soil temperature,soil water content,pH and soil nitrogen content).关键词
云南松群落/桉树群落/蚯蚓数量(密度)/土壤温度/土壤含水量/土壤养分Key words
Pinus yunnanensis community/Eucalyptus maideni community/earthworm number (density)/soil temperature/soil water content/soil nutrient分类
农业科技引用本文复制引用
王红,王邵军,李霁航..不同森林群落类型土壤蚯蚓数量和生物量的时空分布特征[J].南京林业大学学报（自然科学版）,2017,41(3):37-42,6.基金项目
国家林业局“948”项目(2015-4-39) （2015-4-39）
国家自然科学基金项目(41461052) （41461052）
云南省高校优势特色重点学科(生态学)建设项目 （生态学）
