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

作　　者：徐恩凯[1,2] 胡永歌 翟心语 董娜琳[1,2] 谷翰思 赵明 王华 历从实 田国行[1,2] 张国育 雷雅凯[1,2] XU Enkai;HU Yongge;ZHAI Xinyu;DONG Nalin;GU Hansi;ZHAO Ming;WANG Hua;LI Congshi;TIAN Guohang;ZHANG Guoyu;LEI Yakai(School of Landscape Architecture and Art,Henan Agricultural University,Zhengzhou 450002,China;Henan Provincial International Joint Laboratory of Landscape Architecture,Henan Agricultural University,Zhengzhou 450002,China;Industrial Development Planning Institute of the State Forestry and Grassland Administration,Beijing 100010,China;Henan Agricultural University Planning and Design Institute Co.,Ltd.,Zhengzhou 450002,China;Henan Qianping Reservoir Construction Administration,Luoyang 471200,Henan,China;Henan Expressway Development Co.,Ltd.,Zhengzhou 450018,China)

机构地区：[1]河南农业大学风景园林与艺术学院,郑州450002 [2]河南农业大学河南省风景园林国际联合实验室,郑州450002 [3]国家林业和草原局产业发展规划院,北京100010 [4]河南农大规划设计院有限公司,郑州450002 [5]河南省前坪水库建设管理局,河南洛阳471200 [6]河南省高速公路发展有限公司,郑州450018

出　　处：《生态学杂志》2025年第1期74-84,共11页Chinese Journal of Ecology

基　　金：河南省重点研发与推广专项(科技攻关)项目(222102320465);河南省重点研发与推广专项(软科学研究)项目(232400410293);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);河南省国际合作研究项目(HNGD2021035);河南省高等学校青年骨干教师资助项目(2020GGJS049)资助。

摘　　要：生物量是衡量植被生产力的重要指标,灌木生物量模型是快速估算灌木生物量的重要方法之一。以河南省高速公路边坡3种常见的护坡灌木紫穗槐、荆条和胡枝子为研究对象,基于实地刈割获得植物叶、茎和地上生物量数据,以及对各灌木株高、冠幅和基径的测算,建立3种灌木叶、茎和地上总生物量的估算模型,根据决定系数(R~2)值的大小、估计值的标准误差(SEE)的大小及回归检验显著水平(P)筛选出最优预测模型,并利用地上生物量最优模型对3种灌木生物量进行了估算。结果表明:3种灌木茎叶比相差不大,为2.57~3.35;3种灌木器官和地上总生物量的最优模型采用的自变量为植株体积(V)、植株高度(H)或基径平方乘以株高(D~2H),最优模型形式多为二次或者三次函数方程。实测值检验显示,建立的3种灌木的函数模型预测生物量的预估精度均达到97%以上,预测精度较好,河南省高速公路边坡灌木地上生物量为6.86×10^(7) kg。研究结果证实,建立的灌木生物量预测模型可应用到高速公路边坡紫穗槐、荆条和胡枝子叶、茎和地上总生物量的估算。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(R^(2)), 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(D^(2)H) 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 accuracy 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 × 10^(7) 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 

分 类 号：U418.9[交通运输工程—道路与铁道工程] Q948[生物学—植物学]