The Establishment And Application Of Ecological Monitoring System For Forest Communities In The Baoji-Tianshui Expressway

There is forest as a kind of precious natural resources, which play a important role in the process of human survival and development.It is the basis of the entire national economy sustained, rapid and sound development, and has an irreplaceable position and role In the national economic construction and sustainable development. Meanwhile, it also has important ecological value, play a crucial role in adjusting the climate and soil and water conservation, and beautifying the environment, etc. In recent decades, with the development of economy, people’s demand for forest resources more and more strong. In the meantime, with blindly pursuing GDP, has neglected the forest health problem, so that forest health condition is not optimistic. In recent years, people have pay more attention to forest health, but due to historical debt more, forest health is still worryingXiaolong mountain Nature Reserve, a unique geographical position, belongs to the warm temperate deciduous oak forest in southern zone and north subtropical evergreen and deciduous broad-leaved mixed forest zone of the intersection zone. Area environment diversity, there are many different kinds of plants and animals, it has a strong transitional and intersection, which is the key conservation areas of China’s 11 biodiversity. with the Baoji and Tianshui highway operations in protected area, its impact on vegetation along is unknown.In this paper, forest community along the Baoji and Tianshui highway are treated as the research object. Through the establishment of the scientific health monitoring system, to evaluate their health status. Draw the following conclusions: 1) the monitoring indexes like as species diversity, ecological niche, interspecific association, distribution pattern, soil fertility, air pollution, soil pollution, plant diseases and insect pests, forest fire danger and human disturbance,they are very good to reflect the community in the field of health. 2) From two aspects of community stability and community interference of health monitoring system can be a very good for expressway to make an accurate evaluation of forest community health. 3)Based on the study of 12 samples to evaluate the community health,it is indicated that only one is In the health level,it occupy 25% of amount community; there are six of them is at the sub-health level, occupy 50 % of amount all. and three of them is ill health, occupy 25 % of amount all. So we can infer that the study of 12 samples,as a whole, is in the sub-health level. 4)It is suggested that it is have a highly significant positive correlation between community health index and species diversity, and significantly positive correlation among community health index,interspecific association and distribution pattern. meanwhile, human disturbance, plant diseases and insect pests, air pollution and soil pollution were very significant negative correlation with community health index. In the main factors affecting community health, human disturbance, plant diseases and insect pests, atmospheric pollution and soil pollution of interference indicators ranked top four. It is said that the community health is more sensitive to the change of these factors. 5)For forest community health along the highway, we can maintenance from four ways: artificial cultivation, establishing the protective belt, strengthen management, and strengthen the monitoring measures.