西双版纳片断热带雨林土壤动物组成的比较  

COMPARISON OF THE COMMUNITY COMPONENT OF SOIL ANIMALS ON THE FRAGMENTS OF TROPICAL RAIN FOREST IN XISHUANGBANNA

作　　者：李朝达[1] 肖宁年[1] 杨大荣[1] 匡溥人 

机构地区：[1]中国科学院昆明动物研究所

出　　处：《Zoological Research》1997年第1期45-49,共5页动物学研究（英文）

摘　　要：本文对西双版纳国家自然保护区勐仑片和城子、曼峨、曼养广傣族“龙山”４个热带雨林片断土壤动物群落组成及其季节性变动规律进行了比较研究。调查方法：在每片森林沿直角线路布设７个样点，每点取５０ｃｍ×５０ｃｍ面积的枯枝落叶及表层土，用干漏斗法收集土壤动物。干季和雨季各取样１次，统计单位面积个体数量。结果表明，４个热带雨林片断土壤动物由４门９纲２４—２７个类群组成，蜱螨目和弹尾目为优势类群；膜翅目、鞘翅目和双翅目为常见类群；其余类群个体数量相对较少。自然保护区勐仑片和３个“龙山”林区相比较，土壤动物群落组成的共同系数，干季分别为０．５２、０．６８、０．６０；雨季为０．７２、０．８２、０．８１。同一林区干季和雨季土壤动物群落组成的共同系数分别为０．７３、０．７２、０．８２、０．５２，以曼养广“龙山”林区季节变化最大。４片森林土壤昆虫群落的多样性指数（＃ＦＫＨ＇）分别为０．６０、０．９１、０．７１、０．７５；蜱螨目和弹尾目的比值（Ａ／Ｃ）分别为１．１４、５．２４、２．５２、２．３８，以保护区的比值最低。The community component of soil animals and seasonal changes in four fragments of tropical rain forest in Xishuangbanna were investigated. Seven samplings (50 cm×50 cm) in soil litter were examined from each of the fragment of tropical rain forest in dry and rainy season. The soil animals were collected by Tullgren methods. The results showed that the soil animal community were composed of 4 phylum 9 class 24-27 groups. Acarina and Collembola were preponderant groups, Hymenoptera, Coleoptera and Diptera were common groups. The coefficient of community of community components of soil animals of the primary forest in Menglun Nature Reserve and the forests of the three Holy Hills of Dai nationality were changed with season: in dry season, respectively as 0.52, 0.68, 0.60; in rainy season, as 0.72, 0.82, 0.81. The coefficient of community of the community components of soil animals of the four tropical forests in different season were 0.73, 0.72, 0.82, 0.52 respectively. Diversity indexes (H′) of the soil insects in the four forests were 0.60, 0.91, 0.71, 0.75 respectively. The specific value (A/C) of Acarina and Collembola in the four rain forests were respectively as 1.14, 5.24, 2.52, 2.38. The fragmentary rain forests of Holy Hills were higher than the primary rain forest in Menglun Nature Reserve.

关 键 词：土壤动物 群落组成 西双版纳 热带雨林 

分 类 号：S154.5[农业科学—土壤学]