基于GIS的紫云县林地生态资产价值分析研究

GIS-based Research on the Value Analysis of Forest Land Ecological Assets in Ziyun County

林地生态资产的核算可以更完善更准确地反映和体现某一地区林地的资源。以贵州省紫云县为例,利用GIS技术手段,获取紫云县林地的变化情况,根据现存在的研究成果和方法,核算紫云县林地生态资产价值情况并对其进行分析,得出以下结论:1)紫云县林地两年所产生的效益均在100亿元左右,2015年林地总价值量为109.77亿元,2020年林地总价值量为117.75亿元,两年价值量差异不大;2)计算结果显示,在生态效益中,涵养水源为研究区带来价值量最大,其次是固碳制氧;3)2015年林地涵养水源价值比2020年低8.79亿,2015年固碳制氧价值比2020年高0.54亿元,2015年林地总价值比2020年林地总价值低7.89亿元。结果表明:2015至2020年,紫云县森林生态资产价值呈增加态势,总价值处于增长状态。

The accounting of forest land ecological assets can more perfect and accurately reflect and reflect the resources of forest land in a certain area.Taking Ziyun County of Guizhou Province as an example,using GIS technology to obtain the changes of Ziyun County’s forest land,according to the existing research results and methods,the value of the ecological assets of Ziyun County’s forest land is calculated and analyzed,and the following are obtained Conclusion:1)Ziyun County's forest land has generated about 10 billion yuan of benefits in two years.The total value of forest land in 2015 was 10.97 billion yuan,and the total value of forest land in 2020 was 11.775 billion yuan.There is little difference in value between the two years;2)The calculation results show that,among the ecological benefits,water conservation brings the most value to the study area,followed by carbon sequestration to produce oxygen;3)The value of water conservation for woodland in 2015 is 879 million lower than that in 2020,and the value of carbon sequestration in 2015 is higher than that of 2020.The annual high is 54 million yuan,and the total value of forest land in 2015 is 789 million yuan lower than the total value of forest land in 2020.The results show that from 2015 to 2020,the value of forest ecological assets in Ziyun County is increasing,and the total value is still increasing.The areas where forest ecological value is weakened are mainly in urban areas,and the areas where forest ecological value is weakened are mainly in the northern and southeastern mountainous areas.