机构地区:[1]河南科技大学农学院,河南洛阳471000 [2]洛阳市林业生态建设发展中心,河南洛阳471000 [3]洛阳市汝阳县国有大虎岭林场,河南洛阳471200
出 处:《西北林学院学报》2025年第2期190-197,共8页Journal of Northwest Forestry University
基 金:国家自然科学基金项目(31700367);国家重点研发计划项目(2016YFC0501605)。
摘 要:森林作为陆地生态系统的主要组成部分,发挥着重要的生态服务功能。本研究基于2018年洛阳市森林资源二类调查数据,依据中华人民共和国国家标准《森林生态系统服务功能评估规范》(GB/T 38582—2020),对洛阳市森林生态系统服务功能进行评估。结果表明,洛阳市森林生态系统保育土壤量为3.21×10^(7)t/a,林木养分固持量为8.52×10^(4)t/a,涵养水源量为6.64×10^(8)m^(3)/a;固碳量为2.03×10^(6)t/a,释氧量为2.37×10^(6)t/a;提供负离子量为1.07×10^(26)个/a,吸收污染气体量为8.49×10^(4)t/a,滞尘量为9.50×10^(6)t/a。2018年洛阳市森林生态系统服务功能总价值为284.76亿元/a,各项服务功能价值量按大小排序为:涵养水源>生物多样性保护>固碳释氧>保育土壤>净化大气环境>林木养分固持>森林游憩。洛阳市森林生态系统服务功能物质量和价值量空间分布均大体呈现西南部>中部>东北部的格局,西南部的嵩县、栾川县和洛宁县森林生态系统服务功能总价值量占洛阳市森林生态系统服务功能总价值量的68.73%,东北部的洛阳市区、伊川县、孟津区和偃师区森林生态系统服务功能总价值量占全市总价值量的6.35%。不同林分类型生态系统服务功能的价值量大小表现为:乔木林>灌木林>经济林>竹林,乔木林价值量为240.78亿元/a,占总价值量的87.98%。乔木林不同优势树种服务功能的价值量大小排序为:栎类>刺槐>杨树>其他硬阔类>油松>柏木>泡桐>针阔混交林>其他软阔类>阔叶混交林>落叶松>其他针叶林。As a main part of the terrestrial ecosystem,forest plays an important ecological service function.Based on the data of forest management inventory of Luoyang conducted in 2018,this study evaluated the forest ecosystem service functions in Luoyang according to the national standard“Specifications for Assessment of Forest Ecosystem Services”(GB/T 38582—2020).The results showed that the amount of soil conservation in the forest ecosystem of Luoyang was 3.21×10^(7)t/a,the amount of forest nutrient retention was 8.52×10^(4) t/a,water conservation was 6.64×10^(8) m^(3)/a,carbon fixation was 2.03×10^(6) t/a,oxygen release was 2.37×10^(6) t/a,the amount of negative ion produced was 1.07×10^(26)/a,amount of polluted gases absorbed was 8.49×10^(4) t/a,and dust retention was 9.50×10^(6) t/a.The forest ecosystem service value of Luoyang in 2018 was 284.76 billion yuan,and the values of various service functions ranked as water conservation>biodiversity protection>carbon fixation and oxygen release>soil conservation>atmospheric purification>nutrient retention>forest recreation.The spatial distribution of material quantity and value of forest ecosystem service functions all generally showed the pattern of southwest>central>northeast.The forest ecosystem service function value of the counties of Song County,Luanchuan and Luoning County in the southwest accounted for 68.73%of the total,while the forest ecosystem service function value of the urban area of Luoyang,Yichuan County,Mengjin District and Yanshi District in the northeast accounted for 6.35%of the total.The service values of different forest types ranked in the order of arbor forest>shrub forest>economic forest>bamboo forest.The arbor forests service value was 240.78 billion yuan per year,accounting for 87.98%of the total.The service values of different dominant tree species ranked as Quercus>Robinia pseudoacacia>Populus>other hardwoods>Pinus tabuliformis>Cupressus funebris>Paulownia>mixed coniferous and broadleaf forests>other softwoods>mixed broadleaf fo
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