Ecological Environment Assessment Report Of Hongkong Plantation In Xunwu County Of Jiangxi Province

Artificial forestation is one of the most important ways for ecological restoration of degraded forest land or burned land.The high temperature and humidity in Southern China,superior hydrothermal conditions and artificial forestation can promote the natural restoration of forest.However,there are many ambiguities about the ecological effects of artificial afforestation projects.The study is based on artificial forestation in Dongjiangyuan District,Xunwu County,Jiangxi Province,to study the evaluation of the chief forest information,soil fertility,forest plant species diversity and ecological service value in the area,which is sponsored by Friends of the Earth Hong Kong Charitable Co.,Ltd.(Hong Kong Forest).(1)The results show that the present ecological environment of Hong Kong forest is very common.According to the weight of soil nutrient index and the scoring standard,the comprehensive nutrient index of Hong Kong forest soil is 54,which belongs to the low level.The content of heavy metals is higher than that of water sources,and some individual indicators are more serious.The content of total chromium is 1.096mg/ kg,404.8 higher than the standard.(2)Wiener Index Curve and Pie Lou Index Curve of Biodiversity Index are S-type,which means that with the increase of plantation years,the biodiversity increases first,then decreases,and then continues to rise.Simpson index changes little at about 0.9,but increases continuously with the increase of plantation years,the diversity index increases.The older the plantation ecological environment is,the better it is.This also reflects the linear growth law of ecological benefits of plantation.(3)The total value of each ecological function assessment of Hong Kong's forests planted for seven consecutive years will be over $2.4907 million,or HK$2.842 million.It is suggested that in the future afforestation work,suitable trees should be strengthened and put in proper place when planting according to the planning design.During tree planting,the whole process of supervision and management should be carried out by technicians to avoid the planting of trees or technical indicators at the discretion of the growers,resulting in the poor growth of trees and the inability of future ecological functions to appear normally,affecting the ecological balance and species balance.