金沙江干热河谷区黑荆树引种研究

A study on introduction ofAcacia mearnsiiin dry-hot valley of Jinsha River Basin

摘要

摘要:在金沙江干热河谷地区引种黑荆树试验表明，黑荆树适应该区气候和土壤条件，生长良好；而在海拔1200m、1400m和2200m高度坡耕地与荒地生长的黑荆树状况不同，其地径、株高和冠幅存在显著差异，黑荆树在低海拔比高海拔生长良好，在坡耕地比荒地生长良好，表明海拔高度和立地条件对黑荆树生长影响很大，黑荆树作为金沙江干热河谷地区造林和水土保持的先锋树种，其应用前景广阔。

Abstract:Introduction of Acacia mearnsiiat elevations from 1200m to 2200m of the dry-hot valley of Jinsha River isaimed at testing its adaptabilities to local environment．The results show that the species suit to dry-hot valley environment and has great potentials as a pioneering tree for afforestation in mid-mountain of this area ．The results also indicate that this species grow better at low elevation and on the sites with better conditions．