南京林业大学学报（自然科学版）2017，Vol.41Issue(2)：103-110,8.DOI:10.3969/j.issn.1000-2006.2017.02.015
海南岛东北部木麻黄立木生物量建模
Modeling above-ground and below-ground biomass of Casuarina equisetifolia in the northeast of Hainan Province
摘要
Abstract
[Objective]Casuarina equisetifolia is the main protection forest species in Hainan Island. The carbon sink ca?pacity of this species has received considerable attention against the background of global climate change. [Method] In Daodong Forest Farm, Hainan Island, the 44 trees were selected in the C. equisetifolia forest as standard trees and their biomass was calculated. On the basis of the biomass data of the 41 selected trees and optimal models for above?and be?low?ground biomass, a compatible model for above?and below?ground biomass was established by using a non?linear error?in?variable modeling approach and conversion between variables of volume and above?and below?ground biomass.[Result]One variable equation based on diameter at breast height ( DBH) was the optimal model for above?and below?ground biomass, and a binary equation based on DBH and height was the optimal model for tree volume. The use of the non?linear error?in?variable equation system was a solution to the problem of biomass compatibility, as the model R2 val?ues for above?ground biomass, below?ground biomass, and tree volume were all greater than 0.95, and this system also improved the prediction accuracy for individual trees ( EMPSE less than 10%) and managed to control EMPE( mean predic?tion error) . This study also developed a binary equation concerning the biomass conversion factor ( EBCEF ) and root?shoot ratio ( R ) . [Conclusion] The non?linear equation system provides a method for estimating the biomass and carbon storage of C. equisetifolia on a large scale.关键词
木麻黄/生物量/度量误差模型/相容性Key words
Casuarina equisetifolia/biomass/error⁃in⁃variable model/compatibility分类
农业科技引用本文复制引用
邢海涛,陆元昌,刘宪钊,薛杨,林之盼,王小燕..海南岛东北部木麻黄立木生物量建模[J].南京林业大学学报（自然科学版）,2017,41(2):103-110,8.基金项目
国家林业公益性行业科研专项项目(201304320) （201304320）
