Ecological Sensitivity Evaluation Of Nanxiong Danxia Indus Nature Reservation Area

The nature reserve is the general name of the protected area designated by the state in the form of law,which has the typical characteristics of natural ecosystems or natural integration and other scientific research,monitoring and education purposes.Its main task is protection and management.The study of ecological sensitivity in nature reserves is an important basis for the protection and planning of natural reserves.This paper takes Danxia Wu Tong Nature Reserve in Nanxiong city of Guangdong Province as the research object,and adopts the three methods of literature analysis,field investigation and GIS statistical analysis to evaluate the natural sensitivity of natural reserves.(1)Summary of the previous theory and method of evaluation of ecological sensitivity of natural protection,and analyzes the natural protection area of ecological sensitivity evaluation index system research,based on the actual situation of Danxia Indus Nature Reserve was established with 1 layers of 5 quasi layer 9 evaluation factors for ecological sensitivity evaluation system.(2)To investigate the status of the resources of the Danxia Indus Natural Reserve in the two field and to investigate the distribution of plant and plant resources and the situation of habitat.It is found that there are 1025 species of vascular plants belonging to 175 families,584 genera in the protected area,including 31 families,56 genera and 97 species.There are 6 species belonging to 6 families,6 genera and 97 species(I grade 1 species,II grade 5 species).There are 233 species of wild vertebrate resources,belonging to 31 orders,78 families and 194 genera.There are 17 species of key protected animals at the two level of the state.(3)The ecological sensitivity evaluation of Danxia Indus natural reserve was completed.In the evaluation,according to the Danxia Indus nature reserve plant habitat established animal and plant habitat sensitivity evaluation system of actual dynamic analysis,the sensitivity of plant and animal habitat protection area;then based on the single factor evaluation,analysis method to calculate the weight level using AHP,using GIS software on the ecological sensitivity of protected areas analysis.(4)According to the results of the evaluation,the ecological function division of the protected area was divided into the core area,the buffer zone and the experimentation area,and the corresponding suggestions for planning and construction were put forward.