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选择贵州喀斯特高原三个典型地貌单元作为研究区,于2009-05对不同植被演替阶段的土壤动物群落进行研究。共获土壤动物3992只,隶属于5门10纲26目,共31个类群,优势类群为弹尾目(Collembola)、甲螨亚目(Oribatida)、中气门亚目(Mesostigmata);常见类群为前气门亚目(Prostigmata)、膜翅目(Hymenoptera)、鞘翅目(Coleoptera)、半翅目(Hemiptera)、近孔寡毛目(Plesiopora)、双翅目(Diptera)、双尾目(Diplura)。研究结果表明,随着喀斯特植被的不断退化,土壤动物数量不断减少,表现为林地>灌丛>草地>石漠化地;类群数亦呈减少趋势。各演替阶段土壤动物表聚性明显,但人为干扰(如翻耕等)可导致土壤动物出现逆分布现象。土壤动物多样性分析表明,中小型土壤动物的多样性指数从林地到石漠化地逐渐减小。
Three typical geomorphic units on the karst plateau of Guizhou Province were chosen as the study area. Soil animal communities under different vegetation succession stages were studied in 2009-05. A total of 3992 soil animal species were found, belonging to 5 orders, 10 classes and 26 orders, with 31 taxa. The dominant taxa were Collembola, Oribatida and Mesostigmata. Prostigmata, Hymenoptera, Coleoptera, Hemiptera, Plesiopora, Diptera, Diplura. The results showed that with the continuous degradation of karst vegetation, the number of soil fauna continued to decrease, showing as forest land> shrub> grassland> rocky desertification land; the number of taxa also showed a decreasing trend. The aggregation of soil animals in each succession stage is obvious, but human disturbance (such as tillage) can lead to the reverse distribution of soil animals. Soil animal diversity analysis showed that the diversity index of small and medium-sized soil animals gradually decreased from woodland to rocky desertification.