种内不同的种群之间的差异是普遍存在的，与地理分布相联系的变异，称为地理变异。
geographic variation 地理变异; 地理性变化 Geophysical Monitoring for Climate Change Laboratory 气候变化地球物理监测实验室 .
基于406个网页-相关网页
The study results on geographical variation of wild G. uralensis populations show that variations of up-ground parts, fruits and seed morphological characteristics reach significant level.
对乌拉尔甘草野生种群地理变异的研究结果表明，无论是地上部分形态特征、荚果和种子形态特征还是甘草酸含量均存在显著的地理变异。
参考来源 - 乌拉尔甘草地理变异与种源选择The level of genetic differentiation between populations is lower than that among populations. According to cluster analysis and the law of geographic variation, the populations were classified into two large groups: desert grassland group and typical grassland group.
结合聚类分析和地理变异规律把种群划分为两个大的种群组:荒漠化草原种群组和典型草原种群组。
参考来源 - 华北驼绒藜种群生殖生态学研究The main conclusions were summarized as follows:(1) A. philoxeroides showed significant geographical variation in morphology and growth-defense strategy in its native range, and the pattern appeared to be latitudinally clinal.
主要结论如下:(1)喜旱莲子草的茎叶形态和生长—防御策略在原产地存在显著的地理变异,并表现出纬度渐变趋势。
参考来源 - 外来入侵种喜旱莲子草在原产地和入侵地的地理变异·2,447,543篇论文数据，部分数据来源于NoteExpress
管胞长度的种源区和产地效应很小，无一定的地理变异趋势。
There were very small effect of seed source and no definite geographic pattern in tracheid length.
影响管胞形态地理变异的气候因子中，水湿条件是主导因素，其次是温度。
Among the climatic factors which affect the geographic variation of tracheid morphological, moisture and rainfall are the principal factors, secondary is temperature.
在其他几个性状上，亦经证明有少量地理变异，诸如皮部的某些单萜烯浓度。
Small amounts of geographic variation have been demonstrated in several other traits, such as cortical concentration of certain monoterpene.
应用推荐