CAJ | 학술논문

杨树是我国北方造林绿化的主要树种,但由于抗盐碱能力较差,导致盐碱地区尤其是滨海重度盐渍区发展缓慢,人们担心杨树在该地区的长期适应性及其生长效果。作者对天津港区多年生的杨树绿地进行了全面调查,结果表明：①在客土绿化条件下,杨树生长表现良好,土壤盐害降低、肥力增强的变化趋势明显,提高了杨树在滨海盐渍区的长期适应性和稳定性。②毛白杨和欧美杨表现突出,年均生长量树高〉1.1m,胸径〉1.2cm;新疆杨冠幅小、生长量低、效益差。③杨树的生长状况与立地条件关系密切,毛白杨的年均生长量与土壤有机质呈显著正相关、与土壤全盐量呈显著负相关关系。因此,增加土壤有机质和降低含盐量的技术措施均能促进其生长,提高绿化效果。
양수시아국북방조림녹화적주요수충,단유우항염감능력교차,도치염감지구우기시빈해중도염지구발전완만,인문담심양수재해지구적장기괄응성급기생장효과。작자대천진항구다년생적양수록지진행료전면조사,결과표명：①재객토녹화조건하,양수생장표현량호,토양염해강저、비력증강적변화추세명현,제고료양수재빈해염지구적장기괄응성화은정성。②모백양화구미양표현돌출,년균생장량수고〉1.1m,흉경〉1.2cm;신강양관폭소、생장량저、효익차。③양수적생장상황여입지조건관계밀절,모백양적년균생장량여토양유궤질정현저정상관、여토양전염량정현저부상관관계。인차,증가토양유궤질화강저함염량적기술조시균능촉진기생장,제고녹화효과。
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.