Response of phenotypic plasticity and plant resource allocation ofAmorpha fruiticosa to alpine habitat

17 morphological characteristic indexes and 11 nutritive elements of five different parts of Amorpha fruiticosa firstly planted in the QinghaiTibet Plateau (Lhasa, Maqu ) were investigated to understand the response of phenotypic plasticity and plant resource allocation of Amorpha fruiticosa to alpine habitat. The results of this study showed that phenotypic differences of A. fruiticosa was found in the two investigation regions, especially, the root morphological indexes were greatly different. The biomass proportion and nutritive element concentrations of different parts of A. fruiticosa was different between Lhasa region and Maqu region, which was caused by the response of plant resource allocation to alpine habitat. The correlation relationship between morphological indexes and nutrient element concentrations of A. fruiticosa was complex among two regions.