The Research of the Growth Effect of Green Poplar in Tianjin Port
Abstract：Poplar is the main tree species in afforestation in North China.The salt resistance ability of Poplar is poor which caused saline-alkali area especially Binhai severe saline area develops slowly.The long adaptability and growth effect of poplar is worrying in the region.There is a comprehensive survey to perennial poplar green of Tianjin Port in the paper,the results showed that： ① in the condition of the soil planting,the performance of poplar growth is good,soil salinization reduces,fertility changes obviously,it is implied that the long-term stability and adaptability of poplar is improved in Binhai saline area.②the performance of Poplar and Populus is outstanding,the average annual growth increment of tree height is 1.1m,Diameter at breast height is 1.2cm;the crown of Xinjiang Yang is small,growth quantity is low,benefit is poor.③The relationship between the growth of poplar and site conditions is close,the annual volume growth of Populus tomentosa had a significant positive correlation with soil organic matter,had a significant negative correlation with the total salt content in soil,technical measures,increasing soil organic matter and reducing salt content,can promote growth and increase the greening effect.
Keywords：Tianjin portpoplarsaline landlandscapecoastal protective forest
Publication Date：2011-11-01
Pages：6( 24-29 )