关键词: 乌哺鸡竹, 淡竹, 阳离子, 光合作用, 盐

Abstract: The spatial distribution and community diversity of meso and micro-soil fauna are of great significance to assessing the ecological restoration of low-benefit forests. A field experiment was conducted to explore the effects of forest-grass measures on the meso and micro-soil faunal diversity in low-benefit Cupressus funebris Endl. forest. Six treatments were employed, including Juglans regia L.+Astragalus adsurgens Pall., J. regia+Sorghum sudanense (Piper) Stapf, J. regia+Melilotus officinalis (L.) Pall., J. regia+Lolium perenne L., J. regia+soilloosening, and low-benefit C. funebris forest as control. The meso and microsoil faunal communities were investigated by using dry and wet funnel method. The results showed that the group number, density and diversity of the meso and microsoil fauna were relatively higher in summer and autumn than in winter and spring in all trestments. Moreover, these variables showed a pattern of J. regia+grass > J. regia+ soilloosening > low-benefit C. funebris forest in four seasons. The meso and micro-soil faunal communities of forestgrass and low-benefit C. funebris forest were moderately dissimilar at the beginning of treatment, and moderately similar with time extension. J. regia+soil-loosening and lowbenefit C. funebris forest were significantly similar in autumn and winter. The soil fauna in J. regia+grass and C. funebris forest was mainly distributed in upper and middle layer soil in four seasons, while the meso and microsoil fauna in forestgrass had a tendency of moving to subsoil in winter. At the early stage, the soil fauna in J. regia+soilloosening was mainly distributed in upper and middle soil layer; as time went by, the soil fauna was likely to migrate to the middle and lower layers gradually. Forestgrass had a great effect on the meso and micro-soil faunal community structure, and this effect was better in J. regia+M. officinalis and J. regia+L. perenne than in the other forest-grass measures.

Key words: Ph. glauca, salt, photosynthesis, Phyllostachys vivax, cation