Study On Plant Communities And The Relevant Physicochemical Property Of Soil Analysis In Xuzhou Yunlong Shan

Bssed on the filed investigation and analysis inside, and the indoor field investigation of the method of combining the community Yunlong Shan vegetation habitat conditions, community composition and structure, soil properties and community characteristics and soil physical and chemical properties such as the relationship between the investigation, analysis, and in accordance with Yunlong Shan state of the existing vegetation to vegetation restorationproposals, analysis showed that:1. Yun Longshan Berlin side of the existing community structure is simple, species richness and diversity of low, communities of species diversity index for the order: herb layer> shrub layer> tree layer. Representative sample of the survey results show that the existing basic side of the Berlin community can be divided into four types: oriental arborvitae - Qingtong community, oriental arborvitae - Locust community and oriental arborvitae - configuration tree communities.2. From all levels within the forest species composition, the oriental arborvitae trees in the layer still holds significant advantages, but in the shrub layer and layer of herbal or missing, or the number of the very few on its natural regeneration more difficult. On the contrary, in the process of growth and development of forest mixed with some broad-leaved species, such as Celtis sinensis, the structure tree, Ailanthus altissima, Chinese pistache, 1.30 maple, the Indus, Du Li, privet, not only has become a tree layer of associated species, with a substantial Distributed in the shrub layer and herb layer, showed a strong ability to update. Therefore, implantation of the broad-leaved species, increase species diversity, can be realized in the region Berlin side of the existing Forest transformation, promote community and the succession of areas of vegetation recovery.3. Community understory vegetation biomass order of: oriental arborvitae - Locust> oriental arborvitae - Qingtong> oriental arborvitae - configuration tree> oriental arborvitae Chunlin; understory vegetation coverage of the total size of oriental arborvitae - Locust> oriental arborvitae - Qingtong > Oriental arborvitae - configuration tree> oriental arborvitae - Chunlin, the two agreed the order.4. Vegetation cover, species richness and diversity of plant species evenness index and soil K, available phosphorus, organic matter is positive correlation between the vegetation cover, species richness and soil moisture content was positive correlation between the vegetation cover , Species richness and species diversity, species evenness index, both forest and soil biological no correlation between the PH value. 5. the overall context of soil under the same circumstances, the local soil differences led to the recovery of vegetation in different stages. This shows that the soil conditions on the succession of vegetation has not ignore the impact. Restoration of vegetation and soil improvement is a two-way interactive relationship. Only soil physical and chemical properties to certain conditions, the plant can be settled, growth and the formation of a sound community structure. Accordingly, only after the establishment of certain vegetation to the physical characteristics of the soil improvement and soil nutrients fixed, transformed and have a positive impact on storage, improve soil quality.