| With the acceleration of urbanization,the number of sub-health population is increasing,and the proportion of the elderly population is also increasing.It has become a new trend of forestry development to use high-quality forest resources to carry out forest rehabilitation projects.It has become a new trend of forestry development to use high-quality forest resources to carry out forest rehabilitation projects.However,due to the short history and lack of experience of forest rehabilitation development in China,there are also uneven problems in the rapid development.At present,there is no complete theoretical system in the field of forest rehabilitation base location,planning,rehabilitation projects,etc.On the basis of combing the research progress of forest health factors at home and abroad and case analysis,this study selects and determines reasonable evaluation indexes,and constructs the suitability evaluation index system of forest health base construction.Taking the suitability of forest health base construction in Zoumaling of Tongcheng City,Anhui Province as an example,qualitative and quantitative analysis were carried out to draw out the best site selection range and level of forest health in the study area.The main conclusions of this study are as follows:(1)Through literature review,expert consultation and selection of evaluation factors to build the suitability evaluation index system of forest health base construction.Including stand quality,environmental quality and construction conditions,stand type,canopy density,accumulation,origin,temperature,humidity,negative oxygen ion concentration,road conditions,altitude,slope,slope direction,11 specific indicators.The questionnaire was designed to invite experts to score,and the weight of each index was calculated by AHP with Yaahp software.The results showed that the weight of stand quality(0.6370)> the weight of environmental quality(0.2583)> the weight of construction conditions(0.1047).In the construction of forest rehabilitation base,the quality of forest stand has an important influence,which is the basic guarantee and core condition for the development of rehabilitation base.(2)Formulate specific index evaluation and grading standards,Using the formula to calculate the stand quality 76 points for the study area,environmental quality 74 points,construction conditions 71 points,According to the evaluation results,The comprehensive score of Zoumaling research area as a forest health base constructionis 74 points,Zoumaling area has the advantages of comfortable climate,high content of negative oxygen ions in the air,suitable for cultivation at an altitude,superior conditions of health resources,and suitable for carrying out forest health activities.(3)Using the successful experience of GIS in other fields for reference,11 evaluation index factors are analyzed and classified by using GIS spatial analysis function,and then weighted superposition analysis is used to obtain the comprehensive distribution map of forest health base construction.According to the final results of the study,the study area is divided into three areas: the most suitable,more suitable and unsuitable.It is expected to improve the technical means of forest rehabilitation base construction planning and provide reference for rehabilitation development and construction site selection.The final results show that the most suitable area for the construction of the health care base in Zoumaling region is 46.3,accounting for 13.8% of the total area,453.8,accounting for 71.2% of the total area,136.7 accounting for 21.5%of the total area,which meets the requirements for the development of forest health care,accounting for 74% of the total area,and has a higher development rate of forest health care Exhibition potential.The most suitable areas for forest rehabilitation in the study area are Wanglaowu,Xiejiajing,Zhangjiawan and Pengtang.The terrain of the area is relatively flat and the traffic is convenient.The forest types are mainly mixed coniferous and broad-leaved forest.The average value of negative oxygen ion concentration is high.It has great development potential.It is the first area to carry out forest rehabilitation activities and can be the best choice for forest rehabilitation construction and development land planning Address area. |
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