关键词: 时空尺度, 异质性, 鼠类群落, 农作区, 豫西黄土高原

Abstract: It is on local scale and a short term that the dynamics of patterns of a rodent community in a agricultural ecosystem in the west of Henan Province in the centre of China is analysed. 　　There was one Cricetulustriton + Mcrotus mandarinus community in regional scale,in which the species diversity showed significantly positive correlation swith the richness and the evenness, respectively and the correlation between the diversity and the richness was more noticeable than that between the diversity and the evenness. However, because of patchiness in the distribution of resources, the dominant rodent species and the sub-dominant responded to variability of the environment in season individualistically which resulted in spatial and temporal patterns of the rodent community correspondingly. 　　In the farm land, the rodent community subdivided in to two patterns: M. mand arinus + C. triton sub-community and C. triton + M. mandarinus one in fall, the latter was living in fields of cornoroil sunf lower. Following the rotation from spring to fall, the rodent species diversity was significantly and positively correlated to the richness and evenness respectively, with in those. 　　Disregard of ages of apple tree and seasons, structure of the rodent communityin orchards were stable in which abundance of M. mandarinus was all larger than that of C. triton, and the diversity has correlation neither with the richness nor with the evenness. However, it w as irrigation in a few orchards that made the order of C. triton and M. mandarinus in the community such reversal that C. triton + M. mandarinus sub-community replaced M. mandarinus+ C. triton one. Of cources, the probability can be predicted that what happened in the irrigated orchards would similarly come to in the farm land if farm land would be irrigated. 　　From summer of the 1st year of field abandonment, M. mandarinus + C. triton sub-community was becoming C. triton + M. mandarinus sub-community. When perennials replaced annuals as the dominant plant species by the end of the 3rd year of the succession, the C. triton+ M. mandarinus sub-community was stable. During the succession, the rodent species diversity had no correlation with the richness and the evenness of the rodent communities, respectively. 　　It indicated resulting from this paper that environment heterogeneity results in a diversity of rodent communities in agricultural area.

Key words: Temporal and spatial scale, Heterogeneity, Rodent community, Agricultural area, Western Henan Province, Loess plateau