亚热带农业研究2024，Vol.20Issue(2)：111-116,6.DOI:10.13321/j.cnki.subtrop.agric.res.2024.02.005
阔叶混交林与杉木萌芽林的净生产力及水源涵养能力比较
Comparison of net productivity and water conservation capacity of mixed broad-leaved forest and Cunninghamia lanceolata sprout forests
摘要
Abstract
[Purpose]The net productivity and water conservation function of the nine-year-old mixed broad-leaved forest and Cun-ninghamia lanceolata sprout forests in Shanmei Reservoir of Quanzhou City,Fujian Province were analyzed,so as to provide theoret-ical reference for reconstruction of water conservation forest in reservoir area.[Method]The growth,biomass,and annual net pro-ductivity were investigated in the standard plots set within nine-year-old Castanopsis fissa×Acacia confuse ×Michelia macclurei mixed broad-leaved forest and Cunninghamia lanceolata sprout forests in Shanmei Reservoir,and the water conservation functions by differ-ent ecosystem components were also measured.[Result]The tree layer biomass,annual net productivity,total above-ground bio-mass,maximum water holding capacity and drainage capacity of mixed broad-leaved forest were significantly higher than those of Cunninghamia lanceolata sprout forests,and the above indexes increased by 22.44％,14.73％,18.01％,18.21％and 17.45％,re-spectively.The soil water holding indexes of broad-leaved mixed forest were better than Cunninghamia lanceolata sprout forests,a-mong which the maximum water holding capacity and drainage capacity of 0-40 cm soil layer in mixed forest were 17.21％and 19.85％significantly higher than those of sprout forests.The maximum water capacity and drainage capacity of mixed broad-leaved forest were 17.23％and 19.80％significantly higher,respectively,compared with those of Cunninghamia lanceolata sprout forests.[Conclusion]The mixed broad-leaved forest of Castanopsis fissa×A.confuse× M.macclurei can effectively improve the stand net pro-ductivity and water conservation function,and this model can be applied in the renovation of water conservation forest.关键词
山美水库/阔叶混交林/杉木萌芽林/生物量/水源涵养功能Key words
Shanmei Reservoir/mixed broad-leaved forest/Cunninghamia lanceolata sprout forest/biomass/water conservation function分类
农业科技引用本文复制引用
叶维忠..阔叶混交林与杉木萌芽林的净生产力及水源涵养能力比较[J].亚热带农业研究,2024,20(2):111-116,6.基金项目
福建省林业科研项目"闽东南丘陵生态林树种结构优化关键技术研究"(闽林科函[2023]26号). （闽林科函[2023]26号）
