摘要
为了查明梵净山沿海拔梯度常绿落叶阔叶混交林土壤螨类群落特征及海拔差异,2015年6月对梵净山常绿落叶阔叶混交林带土壤螨类进行调查,获土壤螨类2 100只,隶属4亚目55科101属。采用属数和个体数量,群落多样性、优势度、均匀度、甲螨群落MGP和捕食性螨类MI等指数对螨类群落结构的分析显示,Vilhenabates和Setoxylobates是该林带的主要类群,螨类分布呈现明显的表聚性。随海拔上升,螨类类群数和个体数量基本呈减少的趋势。土壤螨类群落优势度表现为1 300 m>1 900 m>1 500 m>1 700 m,多样性和均匀性指数表现为1 700 m>1 900 m>1 500 m>1 300 m,方差分析表明海拔差异对螨类优势度具有显著影响,对多样性和均匀性影响很小。甲螨群落结构以O型为主;中气门螨类群落以K-选择类群为主。
In order to understand the characteristics of community structure of soil mites in the mixed evergreen and deciduous broad-leaved forest in Fanjingshan, soil mites were investigated in June 2015 along an altitude gradient, a total of 2 100 soil mite individuals was captured which belong to 4 suborders, 55 families and 101 genera. The characteristic of soil mite community structure was analysed by using number of taxon and individual, diversity, dominance, evenness, MGP analysis and MI index. The results showed that Vilhenabates and Setoxylobates were the dominant groups for the whole forest belt, and the distribution of mites presented an upper-accumulated nature. With the increase of altitude, the quantities of both communities and individuals of mites were basically reduced. The dominance of soil mite communities in different altitudes was characterized by an order of 1 300 m〉l 900 m〉l 500 m〉l 700 m, while the diversity and evenness indexes in an order of 1 700 m〉l 900 m〉l 500 m〉 1 300 m. Further variance analysis also indicated that altitude had a significant impact on the dominance of mites, but little effect on the diversity and evenness indexes. The community structures of Oribatid and Mesostigmatic mites were respectively dominated by O-type and K-selection.
作者
王鹏举
陈浒
周政
林丹丹
巫仁霞
朱佳运
WANG Pengju;CHEN Hu;ZHOU Zheng;LIN Dandan;WU Renxia;ZHU Jiayun(School of Karst Science,Guizhou Normal University / State Engineering Technology Institute for Karst Desertification Control,Guiyang 550001,China)
出处
《土壤》
CAS
CSCD
北大核心
2018年第4期687-695,共9页
Soils
基金
贵州省科技计划重点课题项目(黔科合SY[2015]3052号)
国家世界遗产提名项目(20140505)资助
关键词
土壤螨类
群落结构
常绿落叶阔叶混交林
海拔梯度
Soil mites
Community structure
Mixed evergreen and deciduous broad-leaved forest
Altitude
