关键词: 滩涂围垦区, 小型兽类, 群落结构

Abstract: The structure of the small mammal community in the reclaimed area of the Qian— tang River were investigated in August 1987 and 1989．Results obtained are as follows．
1． The small mammals were captured in seven different ecological habitats in the reclaimed area and farmland area using the trap-night methods．According to the data 0brained．the small mammals in sample area can be divided into seven communities as below．
A ． Rattus losea community.
B． R.1osea+Apodemus agrarius community.
C． A．ugrius+R．1osea community．
D． A.agrarius +R．1osed Croeigura gracula community．
E A.ugrorius+C.druculs+Suncus murinus community．
F． A．ugfariu+S.murlus+C．dracula cemmunily．
G． A． agrarius+S． murinus comunity．
2． The index of the similarity between communities was related to the reclaimedn time． The highest index has been foune in community C-D.
3． The highest index of the diversity and the evennesss was in community E．
4. The bistribution of the small mammals was related to the crop type，the food and the soil type．Each had its moss suitable habitat of the trod and the soil．There was very marked correlation between the distribution of R．losea and the salinity and C／N of soil．
5． The structure of the small mammal community was relaetd to the vegetation and the soi1．

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Key words: Outlet sands of reclaimed, Small mammals, Community structre