气候变化对暴马丁香种子质量的影响研究  

Impact of Climate Change on the Seed Mass of Syringa Reticulata

作　　者：翟瑜 Zhai Yu(Shanxi Academy of Forestry and Grassland Science,Taiyuan 030012,China)

机构地区：[1]山西省林业和草原科学研究院,山西太原030012

出　　处：《山西林业科技》2024年第3期21-23,共3页Shanxi Forestry Science and Technology

摘　　要：在山西省暴马丁香的主要分布区内,选择13个种源的67棵单株,进行种子质量测定,并通过遥感数据和已有数据库获取与气候变化密切相关的环境因子数值,运用线性混合效应模型研究了环境因子对暴马丁香种子质量的影响。结果表明,暴马丁香种子质量为13.6 mg±2.7 mg,其变异系数CV为34.3±9.0。暴马丁香种子质量随着近地面CO_(2)浓度和土壤N含量增加而增加,随着年平均降水量增加和土壤P含量减少而增加,随着土壤N含量增加和土壤P含量减少而增加。暴马丁香种子质量CV随着近地面CO_(2)浓度提高而增加,随着近地面CO_(2)浓度增加和年平均降水量减少而增加。从影响程度来看,N和P的交互效应对种子质量影响最大,其次是CO_(2)和N的交互效应以及AP和P的交互效应。CO_(2)以及CO_(2)和AP的交互效应对种子质量CV的影响相似。In the main distribution area of Syringa reticulata in Shanxi Province,67 individual plants from 13 provenances were selected to determine the seed mass.Environmental factor values closely related to climate change were obtained through remote sensing data and existing databases.A linear mixed effects model was applied to study the impact of environmental factors on Syringa reticulata seed mass.The results showed that the seed mass of Syringa reticulata was 13.6 mg±2.7 mg,and its coefficient of variation(CV)was 34.3±9.0.The seed mass of Syringa reticulata increased with the increase of near ground CO_(2)concentration and soil N content,increased with the increase of annual precipitation and the decrease of soil P content,and increased with the increase of soil N content and the decrease of soil P content.The seed mass CV of Syringa reticulata increased with the increase of near ground CO_(2)concentration,and increased with the increase of near ground CO_(2)concentration and the decrease of annual precipitation.From the perspective of impact,the interaction effect between N and P had the greatest impact on seed mass,followed by the interaction effect between CO_(2)and N,as well as the interaction effect between AP and P.The impact of CO_(2)and its interaction with AP on seed quality CV was similar.

关 键 词：暴马丁香 种子质量 气候因子 

分 类 号：S685.26[农业科学—观赏园艺]