摘要
【目的】传统的森林生物多样性保育价值缺乏统一的评估标准,不便于结果比较。目前,物种保育价值模型主要通过林分丰富度核算森林当前保育价值,但未考虑土地利用类型对树种生长的潜在影响,不能体现森林的长期保育价值。近年来,逐步完善的生物多样性价值评价新理论中,尚未出现适用于森林生物多样性保育价值评估的方法。【方法】通过分析福建土地利用情况计算生境质量并划分等级,首次提出生境质量调整系数。利用生境质量和森林分布之间的地理对应关系,构建出基于生境质量的森林生物多样性保育价值模型(HQ-BPV模型),由此将土地利用的影响融入福建省森林生物多样性保育价值评估中。【结果】(1)福建省生境质量分布整体呈现内北高南低、内陆高沿海低和自然保护区高非自然保护区低的态势。(2)福建主要植被类型的平均生境质量按大小排序为针阔混交林>竹林>阔叶混交林>阔叶林>灌丛>针叶林>经济林。(3)调整后栎类和栲类的物种单位面积保育价值最高,为3.58万元/hm^2,调整后各优势树种(组)的物种保育总值中阔叶混交林价值最高,为658.42亿元,构建模型核算的福建省森林生物多样性保育价值为2056.39亿元。【结论】基于能够量化土地利用影响的生境质量指数,构建出HQ-BPV模型用于评价福建省森林生物多样性保育价值,为森林生物多样性的保育价值核算提供新思路,有利于森林资源监测和结构优化。
[Objective]The traditional forest biodiversity conservation value lacks the unified evaluation standard,which is not convenient for comparison of results.At present,the models of the species protection value mainly calculate the current protection value of forests by the richness of forest,but do not consider the potential impacts of the types of land use on the growth process of tree species,they cannot measure the long-term protection value of forests.In recent years,new theories of biodiversity value evaluation have been gradually improved,but the method which is suitable for assessing the protection value of forest biodiversity has not yet existed.[Method]We calculated and graded the habitat quality by analyzing the land use in Fujian Province of southern China and firstly proposed the adjustment coefficient of habitat quality.The biodiversity conservation value model of forest based on the habitat quality was constructed by the geographical correspondence between habitat quality and forest distribution(HQ-BPV model),it integrated the impact of land use into the assessment of forest biodiversity protection value of Fujian Province.[Result](1)The distribution of habitat quality in Fujian Province is generally high in the north and low in the south,high in the inland and low in the coastal areas,and low in the nature reserves and nonnature reserves.(2)The average habitat quality of the main plant types in Fujian Province was ranked in the descending order and be presented as theropencedrymion>bamboo forest>broadleaved mixed forest>broadleaved forest>bushwood>coniferous forest>economic forest.(3)After adjustment,the species of Quercus spp.and Castanopsis spp.had the highest protection value per unit area,which was 35800 CNY/ha,the broadleaved mixed forest had the highest protection value,which was 65842 million CNY by comparing with each dominant tree species(set),the total biodiversity conservation value of the forest in Fujian Province was 205.639 billion CNY.[Conclusion]HQ-BPV model is constructed based on the habitat quality index,which can quantify the impact of land use for evaluating the protection value of forest biodiversity in Fujian Province.It provides new ideas for the protection value accounting of forest biodiversity and is useful for the forest resource monitoring and the structure optimization.
作者
洪宇
刘金福
涂伟豪
林志玮
谭芳林
Hong Yu;Liu Jinfu;Tu Weihao;Lin Zhiwei;Tan Fanglin(College of Computer and Information Science,Fujian Agriculture and Forestry University,Fuzhou 350002,Fujian,China;Key Laboratory for Ecology and Resource Statistics of Fujian Province,Cross-Strait Nature Reserve Research Center of Fujian Agriculture and Forestry University,Fuzhou 350002,Fujian,China;College of Forestry,Fujian Agriculture and Forestry University,Forestry Post-Doctoral Station of Fujian Agriculture and Forestry University,Fuzhou 350002,Fujian,China;Fujian Academy of Forestry,Fuzhou 350002,Fujian,China)
出处
《北京林业大学学报》
CAS
CSCD
北大核心
2020年第1期1-9,共9页
Journal of Beijing Forestry University
基金
福建省林业科学技术项目(KH1701390).
关键词
森林生物多样性
保育价值评估
生境质量
forest biodiversity
protection value assessment
habitat quality
