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Position: Home > Articles > Dynamic Research of Net Primary Productivity of Forest Vegetation Based on 3-PG Model Forest Engineering 2019 (5) 50-56+62

基于3-PG模型的森林植被净初级生产力动态变化研究

作  者：
王馨慧;邢艳秋;黄佳鹏;常晓晴
单  位：
东北林业大学森林作业与环境研究中心
关键词：
3-PG模型;净初级生产力;动态研究
摘  要：
森林植被净初级生产力(Net Primary Productivity,NPP)在进行碳储量以及碳汇的研究中发挥重要作用。为了解森林植被NPP的变化趋势及特征,实现NPP的动态研究,本文以黑龙江省伊春市带岭区作为研究区,利用3-PG(Physiological Principles Predicting Growth)模型,研究带岭区针叶林、阔叶林和针阔混交林2014-2044年森林植被NPP逐年生长量以及2014-2019年NPP的逐月生长量变化。结果表明:2014-2044年间带岭区森林NPP整体呈现增加趋势,但增长速度随年份增长逐渐降低; 2014-2019年NPP的逐月生长量呈周期性变化;带岭区2015年5-9月NPP总量为30. 725×105t; NPP年值与月值在3种林分中均表现为幼龄林>中龄林>近熟林>成熟林>过熟林。研究结果为3-PG模型在我国东北地区的应用做出尝试,并为林业管理人员提供决策支持和科学参考。
译  名：
Dynamic Research of Net Primary Productivity of Forest Vegetation Based on 3-PG Model
作  者：
WANG Xinhui;XING Yanqiu;HUANG Jiapeng;CHANG Xiaoqing;Research Center of Forest Operation and Environment,Northeast Forestry University;
单  位：
WANG Xinhui%XING Yanqiu%HUANG Jiapeng%CHANG Xiaoqing%Research Center of Forest Operation and Environment,Northeast Forestry University
关键词：
3-PG model;;net primary productivity;;dynamic research
摘  要：
Net Primary Productivity( NPP) plays an important role in the study of carbon storage and carbon sinks. In order to understand the changing trend and characteristics of forest vegetation NPP,and realize the dynamic research on the NPP of forest vegetation,this paper took the Dailing District,Yichun City,Heilongjiang Province as the research area,and studied the coniferous forest,broad-leaved and coniferous and broad-leaved mixed forest in the Dailing District the annual growth of forest NPP in 2014-2044 and monthly growth of forest NPP in 2014-2019 based on the 3-PG( Physiological Principles Predicting Growth) model. The results showed that the forest NPP in the Dailing District showed an increasing trend in 2014-2044,but the growth rate gradually decreased with the year. The monthly growth change of NPP in 2014-2019 was cyclical. The total amount of forest NPP in the Dailing District from May to September was 30. 725 × 105 t in 2015. And the annual and monthly values of NPP were expressed in the three forest stands: young forest > middle-aged forest > near-mature forest > mature forest > over-mature forest. The research results make an attempt to apply the 3-PG model in Northeast China,and provide decision support and scientific reference for forestry managers.

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