马褂木×杉木混交林早期生长及土壤理化性状分析  

Analysis of Early Growth and Soil Physical and Chemical Properties of Mixed Forest of Liriodendron chinense and Cunninghamia lanceolata

作　　者：江晓丽 JIANG Xiaoli(Jiangle state-owned Forestry Farm,Jiangle 353300,Fujian,China)

机构地区：[1]福建省将乐国有林场,福建将乐353300

出　　处：《福建林业科技》2024年第4期82-85,91,共5页Journal of Fujian Forestry Science and Technology

基　　金：中央财政林业科技推广项目(闽[2022]TG02号)。

摘　　要：于2020年在福建省将乐国有林场,选择良种杉木和马褂木作为松林皆伐改造树种,营造马褂木×杉木混交林及杉木良种林分,2023年对林分的生长量、林分质量、土壤理化性状等进行调查分析。结果表明:马褂木与杉木混交林,混交比例为2马褂木1杉木、初植密度2500株·hm^(-2)、行状混交的模式,5年生的郁闭初期混交林分结构较为稳定,马褂木表现出很强的生长适应性,且有效促进杉木的生长,混交林中杉木的树高、胸径、单株材积分别比杉木纯林提高6.51%、11.78%、28.99%,蓄积量极显著高于杉木纯林,是杉木纯林的1.53倍;土壤质量得到改善,与杉木纯林相比,混交林土壤pH值、土壤有机质、全氮、水解氮、有效磷、速效钾等化学性状指标分别相应地提高11.40%、11.12%、38.50%、21.84%、65.03%、21.41%;与杉木纯林相比,混交林土壤水分物理性质得到较大程度的改善,尤其是林地土壤的保水性和通气性能得到明显改善。In 2020,at the Jiangle state-owned Forestry Farm in Fujian Province,high-quality Cunninghamia lanceolata and Liriodendron chinense were selected as the species for clearing and renovating pine forests,creating a mixed forest of L.chinense and C.lanceolata and high-quality C.lanceolata stands.The growth,stand quality,and soil physicochemical properties of the stands were investigated and analyzed in 2023.The results showed that in the mixed forest of L.chinense and C.lanceolata,with a mixing ratio of 2 L.chinense and 1 C.lanceolata,an initial planting density of 2500 plants·hm^(-2),and a row mixed pattern,the structure of the 5-year-old mixed forest in the early stage of canopy closure was relatively stable.L.chinense showed strong growth adaptability and effectively promoted the growth of C.lanceolata.The tree height,breast height diameter,and individual volume of C.lanceolata in the mixed forest increased by 6.51%,11.78%and 28.99%respectively compared to pure C.lanceolata forest,and the volume was significantly higher than that of pure C.lanceolata forest,which was 1.53 times that of pure C.lanceolata forest.The soil quality of mixed forests had been improved.Compared with pure C.lanceolata forests,the chemical properties of soil pH,soil organic matter,total nitrogen,hydrolyzed nitrogen,available phosphorus,and available potassium in mixed forests had increased by 11.40%,11.12%,38.50%,21.84%,65.03%and 21.41%,respectively.The physical properties of soil moisture in mixed forests had been significantly improved compared to pure C.lanceolata forests,especially in terms of soil water retention and aeration performance.The research results could provide reference and inspiration for the transformation of pine forests in northwest Fujian.

关 键 词：马褂木 杉木 混交林 早期生长 土壤理化性质 

分 类 号：S725.2[农业科学—林木遗传育种] S714.2[农业科学—林学]