浙江省江山市公益林地涵养水源功能和价值评估  

Water Conservation Function and Value Evaluation of Public Welfare Forest Land in Jiangshan City of Zhejiang Province

作　　者：刘基霞 姚任图 邵华亮[4] 吴家森[1] 曾小翠 LIU Ji-xia;YAO Ren-tu;SHAO Hua-liang;WU Jia-sen;ZENG Xiao-cui(College of Environment and Resources,Zhejiang A&F University,Hangzhou,Zhejiang 311300,China;Qingyuan County Bureau of Agriculture and Rural Areas,Lishui,Zhejiang 323800,China;Zhejiang Master Station of Public Welfare Forest and State-owned Forest Farm Management,Hangzhou,Zhejiang 310020,China;Jiangshan Forestry Bureau,Jiangshan,Zhejiang 324100,China;Jiande Forestry Bureau,Jiande,Zhejiang 311600,china)

机构地区：[1]浙江农林大学环境与资源学院,浙江杭州311300 [2]庆元县农业农村局,浙江庆元323800 [3]浙江省公益林和国有林场管理总站,浙江杭州310020 [4]江山市林业局,浙江江山324100 [5]建德市林业局,浙江建德311600

出　　处：《福建农业科技》2023年第1期66-72,共7页Fujian Agricultural Science and Technology

基　　金：浙江省公益林和国有林场管理总站项目(GYLZ-202002);浙江省公益林和国有林场管理总站项目(GYLZ-202004);浙江省公益林和国有林场管理总站项目(GYLZ-202103)。

摘　　要：以浙江省江山市公益林地为研究对象,依据公益林固定样地和小班等实测数据,对不同林分枯落物层和土壤层涵养水源能力和价值进行定量测算和分析。结果表明:江山市公益林不同林分类型枯落物的效拦蓄量表现为针阔混交林>阔叶林>杉木林>松木林>毛竹林;在相同深度土层中,土壤的物理性质和持水量差异不太明显;土壤层贡献了超99%的林地涵养水源量;涵养水源能力强弱表现为针阔混交林>阔叶林>毛竹林>杉木林>针叶混交林>松木林>灌木林。全市公益林年涵养水源总量为18778.69万t,年涵养水源价值量为19.79亿元,单位面积涵养水源量约2813 t·hm^(-2),单位面积价值量约2.97万元·hm^(-2)。江山市公益林涵养水源能力较强的区域为东部,北部的涵养水源能力相对较弱。By taking the public welfare forest land in Jiangshan City of Zhejiang Province as the research object,based on the measured data of fixed sample plots and sublot of public welfare forest,the water conservation capacity and value of litter layer and soil layer in different forest stands were quantitatively measured and analyzed.The results showed that the effective interception amount of litter in different forest types of public welfare forest in Jiangshan City was coniferous and broad-leaved mixed forest>broad-leaved forest>Chinese fir forest>pine forest>moso bamboo forest.In the same depth of soil layer,the difference of soil physical properties and water holding capacity was not obvious.The soil layer contributed more than 99%of the water conservation quantity of forest land.The order of water conservation ability was coniferous and broad-leaved mixed forest>broad-leaved forest>moso bamboo forest>Chinese fir forest>coniferous mixed forest>pine forest>shrub forest.The total annual water conservation quantity of public welfare forests in the whole city was 187,7869 million tons,with the value quantity of 1.979 billion yuan.The water conservation quantity per unit area was about 2813 t·hm^(-2),and the value quantity per unit area was about 29,700 yuan·hm^(-2).In Jiangshan City,the water conservation capacity of public welfare forest was stronger in the east,while the water conservation capacity of public welfare forest in the north was relatively weak.

关 键 词：公益林 涵养水源功能 枯落物 土壤 江山市 

分 类 号：S718.5[农业科学—林学]