生态学杂志2025，Vol.44Issue(1)：74-84,11.DOI:10.13292/j.1000-4890.202501.048
河南省高速公路边坡常见灌木生物量估算模型的构建及应用
Construction and application of biomass estimation model of common shrubs on expressway slopes in Henan Province
摘要
Abstract
Biomass is an important metric to quantify vegetation productivity.Shrub biomass models are one of the important methods for quickly estimating shrub biomass.This study focused on three common slope-protection shrub species,Amorpha fruticosa,Vitex negundo,and Lespedeza bicolor,on the slopes of expressways in Henan Province.Based on data of leaves,stems and aboveground biomass obtained by field harvesting as well as the estimation of plant height,crown width and basal diameter of each shrub,the estimation models for foliage,stem and aboveground biomass of the three shrub species were established.The optimal prediction models were selected according to the size of the determination coefficient(R2),the size of the standard error(SEE)of the estimated value and the significance level of the regression test(P).The biomass of three shrub species was estimated by using the aboveground biomass optimal models.The results showed that stem/leaf ratio of the three species had little difference,ranging from 2.57-3.35.Plant volume(V),plant height(H)or basal diameter square multiplied by plant height(D2H)were used as the independent variables for the optimal models,and the optimal models were mainly quadratic or cubic functional equations.The results of the measured values showed that the prediction accu-racy of the function models was above 97％,with good prediction accuracy.The aboveground biomass of shrubs on the expressway slopes in Henan Province was 6.86 × 107 kg.The results demonstrated that the established models can be applied to the estimation of the leaves,stems and total aboveground biomass of Amorpha fruticosa,Vitex negundo,and Lespedeza bicolor on expressway slopes.关键词
边坡/灌木/生物量/预测模型/预估精度Key words
slope/shrub/biomass/prediction model/prediction accuracy引用本文复制引用
徐恩凯,张国育,雷雅凯,胡永歌,翟心语,董娜琳,谷翰思,赵明,王华,历从实,田国行..河南省高速公路边坡常见灌木生物量估算模型的构建及应用[J].生态学杂志,2025,44(1):74-84,11.基金项目
河南省重点研发与推广专项(科技攻关)项目(222102320465)、国家自然科学基金项目(31600579)、河南省交通运输厅科技合作项目(2015J02)、河南省水利科技攻关项目(GG202069)、河南省高等学校学科创新引智基地项目(GXJD006)、河南省重点研发与推广专项(软科学研究)项目(232400410293)、河南省国际合作研究项目(HNGD2021035)和河南省高等学校青年骨干教师资助项目(2020GGJS049)资助. （科技攻关）
