东南沿海木麻黄人工林生物量和生产力的纬度格局及影响因素  

Latitudinal Patterns and Underlying Factors of Biomass and Productivity of Casuarina equisetifolia Plantation in the Coastal Southeast

作　　者：黄云鹏 黄雍容[1,2] 叶功富 徐伟强[2] 聂森 林智勇 Huang Yunpeng;Huang Yongrong;Ye Gongfu;Xu Weiqiang;Nie Sen;Lin Zhiyong(Fujian Academy of Forestry,Fuzhou 350012,Fujian;Fujian Casuarina equisetifolia Engineering Research Center,Fuzhou 350012,Fujian)

机构地区：[1]福建省林业科学研究院,福建福州350012 [2]福建省木麻黄工程技术研究中心,福建福州350012

出　　处：《防护林科技》2022年第6期1-4,共4页Protection Forest Science and Technology

基　　金：中央引导地方科技发展专项“功能导向型沿海防护林结构定向调控技术研究”(2021L3017);福建省森林培育与林产品加工利用重点实验室资助项目。

摘　　要：以东南沿海不同纬度5个省份(海南、广东、广西、福建和浙江)8个地区的木麻黄人工林为研究对象,对木麻黄人工林中龄林和成熟林生物量和生产力随纬度变化分配格局进行研究,并对木麻黄人工林生产力与主要环境因子相关性进行分析。结果表明:中龄林的树高和生物量均随纬度升高而降低,低纬度地区的胸径大于高纬度地区;木麻黄中龄林和成熟林生物量在纬度梯度上未形成规律性变化;广东电白木麻黄中龄林除外,其他研究区木麻黄中龄林和成熟林生物量分配均表现为干>根>枝>小枝;随着林龄的增长,木麻黄人工林生产力呈下降趋势,较高纬度的浙江温州木麻黄中龄林生产力显著低于其他研究区;各研究区木麻黄成熟林的生产力较一致,差异不显著;木麻黄中龄林的生产力与年均温、年均降水量、实际蒸散量呈显著相关性,而成熟林表现为不显著。Casuarina equisetifolia plantations of eight areas in the five provinces in different southeast coastal latitudes(Hainan,Guangdong,Guangxi,Fujian and Zhejiang)were taken as the research subjects.This paper studied the distribution pattern of biomass and productivity of middle-aged forests and mature forests with latitude,and analyzed the correlation between productivity and main environmental factors of Casuarina equisetifolia plantation.The results of the study were as follows:the height and biomass of middle-aged forests decreased with the increase of latitude and the DBH in low latitude areas was higher than that in high latitude areas;biomass of middle-aged forests and mature forests in Casuarina equisetifolia plantation did not change regularly on latitude gradient;the biomass distribution of middle-aged forests and mature forests in Casuarina equisetifolia plantation showed as trunk>root>branch>leaf,except for the middle-aged forests in Casuarina equisetifolia plantation in Dianbai of Guangdong province;the productivity of Casuarina equisetifolia plantation decreased with the increase in the age of forests,and the productivity of middle-aged forests in Casuarina equisetifolia plantation on higher latitude in Wenzhou of Zhejiang province was significantly lower than that in other research areas;the productivity of mature forests in Casuarina equisetifolia was of no significant difference among each study area;the productivity of middle-aged forests in Casuarina equisetifolia plantation was significantly correlated with annual average temperature,annual average precipitation and actual evapotranspiration,while that of mature forests was not significantly correlated.

关 键 词：木麻黄 生物量 生产力 纬度 环境因子 

分 类 号：S792.93[农业科学—林木遗传育种] S718.55[农业科学—林学]