九华山土壤螨类的生态分布  

THE ECOLOGICAL DISTRIBUTION OF SOIL MITES IN JIUHUA MOUNTAINS

作　　者：王宗英[1] 路有成[1] 王慧芙[1] 

机构地区：[1]安徽师范大学地理系,中国科学院动物研究所

出　　处：《生态学报》1996年第1期58-64,共7页Acta Ecologica Sinica

基　　金：国家自然科学基金;省教委资助

摘　　要：本文对九华山４种生境土壤螨类进行了调查研究。获标本５８０５个，分隶４亚目。其中甲螨亚目占个体总数的６５％，属４２科６２属６３种，新种１种。平均密度３６６５个／ｍ２。土层（０—２０ｃｍ）中甲螨优势种是Ｘｙｌｏｂａｔｅｓｔｅｎｕｉｓ、Ｓｃｈｅｌｏｒｉｂａｔｅｓｌａｔｉｐｅｓ；枯枝落叶层（Ａ００）以Ｇａｌｕｎｍａｓｐ．最多。土层中有些常见种在Ａ００层并未出现。４种生境甲螨组成分化较大，仅见于一种生境的有２８种（属）。种、数丰富性，除马尾松林因人类活动影响深刻而减少外，一般规律是随海拔高度增加而减少。组成成分以两种松林相似性最大，马尾松林与草甸最小。Ｓ、Ｎ、Ｄ、Ｈ、Ｅ等重要指标季节变化明显，一般规律是１２月＞１０月＞４月＞８月，与温带森林甲螨群落相反。甲螨栖息层次表聚性很强，冬季也不减弱。in this paper, the soil mites of four habitates.in Jiuhua mountaints are investigated and studied. 5805 spedments which belong to 4 suboders were collected. Oribatied mites ac count for 65% of the total individuals, and they belong to 42 families, 62 genera and 63 species, of which 1 is a new one to science. The average density is 3665 individuals/m3. Xylobates tenuis, scheloribates latipes are the dominant species in 0-20 cm deepth of soil layer.Galunma sp. is the most abundant species in the litter layer(A00). Some common species seem to be disappeared in layer A00. It is quite clear to divide the oribatid mites' composition in 4 habitates, 28 species(genera) could be found only in one habitat. The species richness and quantity decrease with the altitude increas generally, except that masson pine forest is reduced because of the human activities. The highest composition similiarity is found between the two kinds of pine forests, while the lowest between masson pine and meadow forest. Important in dexes, such as S, N,D, H, E, vary obviously with seasons. A common phenomenon is De cember> October> April > August, contrary to the community of temperate forest. Oribatid mites congregate to the surface horizon, and remain unchanged in winter.

关 键 词：土壤螨类 森林生态系 土壤动物 生态分布 九华山 

分 类 号：S718.69[农业科学—林学]