The Study Of Landscape And Architecture Ecosystem Health Assessment

With the fast development of economy, the landscape also developed very fast. The landscape of artistic, square, pavilion and lawn were pursued without the theory guidance, while the construction of plant community and the harmony of the ecological process were ignored, resulting the plant community constructer simple, bad stability and dimensions small, etc. The landscape and architecture ecosystem is a special ecosystem which is combined by natural ecosystem and man-made establishment. There are no reports about the health and services of landscape and architecture ecosystem. How to promote the landscape ecosystem health and to create a comfortable environment for the city are the content of modern landscape and architecture.The service functions of landscape and architecture ecosystem were introduced, which embodied in the purification environment, the produce and maintenance of biodiversity, promoting the microclimate function, maintaining the soil natural characters, buffering all kinds of disasters, social function, the source of spiritual culture and education function. The structures of landscape and architecture ecosystem were introduced, including species structure, spatial structure, time structure, nutrition structure and hiberarchy structure. The appraisal categories of landscape and architecture ecosystem health were introduced, which included the biology category, the social economy category, the human healthy category and the social community policy category.The landscape and architecture ecosystem health ranks were introduced, dividing into five ranks, sick state, unhealthy, sub-health, health, very health. It could be appraised by vigor, the resiliency, maintaining the ecosystem service and public health.The principles for constructing the landscape and architecture ecosystem health index system were put out, including scientific principle, dynamic and stable principle, hierarchy principle, maneuverability principle, simple principle, systemic and integer principle, comparable principle, diversities principle, acceptable principle, humanity being the composition component of ecosystem principle and qualitative and quantitative principle.The index systems of appraising landscape and architecture ecosystem health were put out, including rule level, factor level and index level. The rule level included the vigor, resiliency, ecosystem service and public health. Factor level included the plant cover level, natural resiliency after disturbance, environment condition, the infrastructure service condition (including landscape construction, sketch, nameplate, path paving, street light, dustbin, sits, and washroom and so on), cultural function, public health and public diathesis. Index level included 28 indexes, for examples the investment for virescence, the change of plant kinds, the times for conserving plants.The landscape ecosystem health of Hunan Martyr Park was appraised by the index systems using the fuzzy comprehensive evaluation methods after investigation. We had the conclusion that the martyr park was health, which was consistent with the results by investigation. But the ecosystem resiliency was worse, should be enhanced, which was consistent with the facts that the landscape and architecture ecosystem needed more conserve.The principles for enhancing the landscape and architecture ecosystem health were put forward after theoretical analysis and practice investigation, which were respecting natural principle, protecting biodiversity principle, ecological principle, system optimizing principle, landscape region and culture principle, sustainable development principle, suitable function principle, esthetics principle, environment sensitive area protection principle and effective principle. Suggestions for improving landscape and architecture ecosystem health were put out, including biological adjust, environment adjust, reasonable ecological collocation, suitable artificial management, humanistic, propagandizing, enhancing the public ecological and participation consciousness, more humanistic for the landscape design.