鄂西南日本柳杉人工林单木生长规律与模型研究  

Studies on the growth rhythm and models of single tree of Cryptomeria japonica plantation in southwest Hubei

作　　者：周鸣惊 唐志强[1] 来羽 杨佳伟 戴薛 李健 张家来[2] ZHOU Mingjing;TANG Zhiqiang;LAI Yu;YANG Jiawei;DAI Xue;LI Jian;ZHANG Jialai(Hubei Ecology Polytechnic College,Wuhan 430200,Hubei,China;Hubei Academy of Forestry,Wuhan 430200,Hubei,China;State-owned Shibanling Forest Farm,Lichuan 445400,Hubei,China)

机构地区：[1]湖北生态工程职业技术学院,湖北武汉430200 [2]湖北省林业科学研究院,湖北武汉430200 [3]利川市国有石板岭林场,湖北利川445400

出　　处：《湖南林业科技》2023年第1期31-38,共8页Hunan Forestry Science & Technology

基　　金：湖北省林业科技支撑项目(2020LYKJ18)。

摘　　要：为分析鄂西南日本柳杉(Cryptomeria japonica)人工林的生长过程,以石板岭林场39年生日本柳杉人工林为研究对象,选取12株标准木进行树干解析,采用Logistic、Richards、Schumacher等6种经验生长模型拟合了生长过程。结果表明:日本柳杉在鄂西南适应性强,39年生日本柳杉胸径、树高、材积总生长量分别为23.2 cm、18.9 m、0.383 9 m3;其速生期在第6—第24年,树高、胸径平均生长量峰值均在第24年;胸高形数0.55~6.32,呈反“J”形,第12年后胸高形数趋于稳定;胸径、树高、材积的最佳生长方程均为理查德方程;材积连年生长量始终高于平均生长量,林分未达到数量成熟。In order to analyze the growth process of Cryptomeria japonica plantation in southwest Hubei, twelve standard trees were selected for stem analysis from 39-year-old plantation in Shibanling Forest Farm, while six empirical growth models were used to simulate the growth process. The results showed that the adaptability of Cryptomeria japonica was strong in Southwest Hubei, and the diameter at breast height(DBH), tree height, and timber volume of 39-year-old Cryptomeria japonica were 23.2 cm, 18.9 m, and 0.383 9 m~3, respectively. The fast-growing period was from the 6th to the 24 th year, and the peak values of average growth of height and DBH were both in the 24th year. The artificial form factor ranged from 0.55 to 6.32, showing an inverse "J" shape, and tended to be stable after the 12th year. The optimum growth equations of DBH, tree height, and timber volume were Richard equations. The current annual increment of timber volume was always higher than the mean annual increment, and the stand didn’t reach quantitative maturity.

关 键 词：日本柳杉 生长规律 生长模型 数量成熟 鄂西南 

分 类 号：S791.31[农业科学—林木遗传育种]