文献类型：期刊文献

中文题名：基于物种分布模型预测两种风铃木在中国的引种适应分布

英文题名：Predicting Suitability Range of Two Ornamental Tree Species Within Handroanthus Genus across China using Species Distribution Modeling

作者：孟景祥[1] 张勇[1] 魏永成[1] 仲崇禄[1] 李振[1] 王玉娇[1] 艾迪[1]

第一作者：孟景祥

机构：[1]中国林业科学研究院热带林业研究所,广东广州510520

年份：2023

卷号：51

期号：1

起止页码：4-10

中文期刊名：热带林业

外文期刊名：Tropical Forestry

基金：中国林科院中央级公益性科研院所基本科研业务费专项资金项目(CAFYBB2020SY021):木本花卉风铃木和决明种质资源收集与评价;广州市基础与应用基础研究项目(SL2022A04J00896):我国风铃木栽培品种的遗传鉴定与SNP位点挖掘。

语种：中文

中文关键词：黄花风铃木;红花风铃木;物种分布模型;适生概率;适应分布;环境影响

外文关键词：Handroanthus chrysanthus;Handroanthus heptaphyllus;Species distribution models;Fitness;Suitability range;Environment impact

分类号：S722.7

摘要：物种分布模型(Species Distribution Models,SDMs)常被用于评价物种在不同地域的适生概率,但能否用于指导远距离引种栽培仍需试验证明。该研究以黄花风铃木和红花风铃木这两种外来树种为研究对象,对比理论预测结果与实际栽培分布的差异。结果显示:黄花风铃木和红花风铃木的理论适生阈值分别为0.433和0.469,均明显高于栽培样点的最低适生概率。其中,黄花风铃木的预测适生区面积约为7.96×10^(4) km^(2),仅包含4.19%的实际栽培样点,是实际可栽培面积的6.48%。红花风铃木的预测适生区面积约为28.91×10^(4)km^(2),包含71.79%的实际栽培样点,是实际可栽培面积的62.62%。回归分析结果显示土壤pH值、最冷月均温、土壤有机物碳含量对黄花风铃木在中国的适生概率有明显的正影响,而最冷月均温对红花风铃木的适生概率有明显的负影响。该研究证明了物种分布模型在指导远距离引种栽培时可能存在较大误差,并揭示了影响风铃木预测准确度和适应性分布的可能原因。该研究将为物种分布模型的应用优化以及风铃木的栽培选育提供参考。
Species Distribution Models(SDMs)are often used to evaluate the suitability of Species in different regions,but the effectiveness for guiding long-distance introduction needs to be proved by experiments.In this study,we predict the fitness of Handroanthus chrysanthus and Handroanthus heptaphyllus in China by SDMs and compared the result to the real cultivation.The predicting result suggesting theory thresholds of 0.433 and 0.469 for suitability of the two species,respectively.which are much higher than the lowest suitability where the species could growth and flowering in real cultivation in China.The suitable habitat in predicting model of H.chrysanthus reached about 79,600 km^(2) in China,including 4.19%of the actual cultivation site,and as 6.48%of the actual suitable area.The predicting suitable area of H.chrysanthus reached about 289,100 km^(2),including 71.79%of the actual cultivation site,and as 62.26%of the actual one.Based on a regression modeling,main factors affecting the fitness of H.chrysanthus were soil pH,low temperature and soil organic carbon content,while the main factors in H.heptaphyllus were low temperature,precipitation frequency and longitude.This study has indicated a deviated result by SDMs in long-distance introduced species,and revealed the potential factors influencing the prediction accuracy and real distribution of two Handroanthus species in China.It will provide reference for the improvement of Species Distribution Models and the cultivation or breeding programs in these two Handroanthus species.