太原城区常绿针叶树生长不良原因与改良措施研究  

ON THE CAUSES OF UNDESIRABLE GROWTH OF EVERGREEN NEEDLE-LEAVED IN TAIYUAN URBAN AREA AND ITS IMPROVEMENT MEASURES

作　　者：马正岩 杜丽星 侯银梅[1] 连湘瑞 李建平[1] 方岩[1] 杨赓[1] 

机构地区：[1]太原市园林科学研究所

出　　处：《山西大学学报（自然科学版）》1993年第2期232-238,共7页Journal of Shanxi University(Natural Science Edition)

摘　　要：通过对环境因素的调查。得出太原市城区常绿针叶树生长不良的主要原因是:①土壤密实度过高,透气性不良,影响树木根系的生长发育,而导致树木生长衰弱;②土壤盐分含量过高,影响树木正常的吸收功能;③城区SO_2污染严重,树木受害症状明显。最后提出了必进常绿针叶树栽培管理的措施。By investigating environment factors, three reasons affecting evergreen needle-leaved trees growth in Taiyuan urban district have been presented 1. Because of high soil density and poor aeration, the root system of the trees is in the abnormal development, and this lead to the trees growth weakly. 2. High soil salinity effects the system keep normal absorbability. 3. Since air was heavy polluted by SO_2, the trees were clearly injured. Some improvements on the cultivation of the trees are proposed.

关 键 词：常绿针叶树 生长不良 空气污染 

分 类 号：X503.235[环境科学与工程—环境工程]