长白山地不同次生林土壤动物群落多样性特征及其分布格局

发布时间：2018-02-10 17:49

本文关键词： 土壤动物次生林多样性特征分布格局长白山地　出处：《山地学报》2017年04期 　论文类型：期刊论文

【摘要】：为探讨长白山地不同地貌类型次生林土壤动物群落多样性特征及其分布格局,分别于2015年春季(5月)、夏季(7月)及秋季(9月)对长白山地三种不同地貌类型(玄武岩台地、花岗岩低山和花岗岩丘陵)的次生林土壤动物进行调查研究。研究表明:大型土壤动物类群数季节变化不显著,中小型土壤动物密度季节波动较大。其中,花岗岩低山次生林大型土壤动物密度和类群数均为最低,玄武岩台地次生林中小型土壤动物密度和类群数要显著高于其他两个生境。通过比较三种生境土壤动物多样性指数发现,大型土壤动物多样性指数随着季节变化表现出相同的动态趋势,均无显著性差异,而中小型土壤动物多样性指数季节波动呈显著升高或降低趋势,且同一季节玄武岩台地次生林的中小型土壤动物多样性指数要显著高于其他两个生境。对三种地貌类型次生林的土壤动物群落与环境因子间相关关系进行了RDA分析,结果表明土壤动物对土壤有机质、全效养分(N、P)和速效养分(N、P、K)响应程度较高,其中中小型土壤动物优势类群甲螨亚目分布对土壤温度、湿度呈显著正向响应。研究可为次生林的管理及生态恢复提供土壤动物学依据。
[Abstract]:In order to study the diversity characteristics and distribution pattern of soil fauna community in different geomorphologic types of secondary forest in Changbai Mountain, three different landforms (basalt terrace) were studied in the spring (May), summer (July) and autumn (September) in the spring (May), the summer (July) and the autumn (September) in Changbai Mountain, respectively. Investigation of soil fauna in secondary forest of granite low mountain and granite hilly). The results show that the number of large soil animal groups does not change significantly in seasons, and the density of small and medium soil animals fluctuates in season. The density and group number of macrofauna in granite low mountain secondary forest were the lowest. The density and number of small and medium-sized soil animals in basalt platform secondary forest were significantly higher than those in the other two habitats. The macrofauna diversity index showed the same dynamic trend with seasonal variation, but the seasonal fluctuation of small and medium-sized soil fauna diversity index showed a significant increase or decrease trend. The diversity index of small and medium-sized soil fauna of basalt platform secondary forest was significantly higher than that of the other two habitats in the same season. The correlation between soil fauna community and environmental factors in three types of secondary forest was analyzed by RDA. The results showed that soil fauna had a higher response to soil organic matter, total available nutrient N (P) and available nutrient (N (P) K), among which the dominant suborder of small and medium soil fauna (Orydae) distributed to soil temperature. The study can provide soil zoology basis for the management and ecological restoration of secondary forest.
【作者单位】：东北师范大学地理科学学院;吉林省动物资源保护与利用重点实验室;
【基金】：国家自然科学基金项目(41471211)~~
【分类号】：S714.3

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