Effects of PEI and DI on root/shoot ratios of four dominant genera (Stipa, Cleistogenes, Agropyron, and Leymus) across a 2500-km long transect in northern China’s temperature grassland.
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PEI, mean annual potential evapotranspiration; DI, drought index.A linear mixed model was employed, using sample plots as the random factor and climate variables as the fixed factors. R is the correlation coefficients between climate factors and root/shoot ratios. P-values are estimated using restricted maximum likelihood (REML) estimates and are reported for significant (p
创建时间：
2015-12-02
