农学学报Issue(6)：109-112,4.
土壤填埋对4种树木的成活率和生长的影响
Effects of Soil Dumping on Survival Rates and Growth of Four Species of Trees
摘要
Abstract
Constructions of housing, tunnel and subway in cities produce large amount of soil. The soil is often dumped into the forest, but the effects of the soil dumping to the trees were unclear. In this paper, survival rates and growth of four species of trees were investigated when the trees were dumped by construction soil. The main results showed that Liriodendron chinense × L. tulipifera was the most sensitive to the soil dumping. When the depth of dumping soil was about tens of centimeter, Liriodendron chinense× L. tulipifera had phenomenon of death. When the depth of dumping soil was above two meters, the death rates were more than 80%. However, Taxodium ascendens and Taxodium mucronatum × Cryptomeria fortunei had no phenomenon of death although the depth of dumping soil was above three meters. Meanwhile Camptotheca acuminata had medium status. Growth tendency of diameter at breast height of four tree species was similar to survival rates. Respiratory rates of soil obviously decreased when the forest were dumped by construction soil. It was suggested that the resistances of Taxodium ascendens and Taxodium mucronatum × Cryptomeria fortunei to the soil dumping were strong, Camptotheca acuminata was medium, and Liriodendron chinense× L. tulipifera was weak.关键词
土壤填埋/成活率/生长Key words
Soil Dumping/Survival Rates/Growth分类
农业科技引用本文复制引用
唐罗忠,笪红卫..土壤填埋对4种树木的成活率和生长的影响[J].农学学报,2015,(6):109-112,4.基金项目
国家自然科学基金项目“池杉形成膝根的生理机制及其功能研究”(31170566)；国际科技合作项目“长江中下游地区林特植物资源高效培育及开发利用技术”(2011DFA30490)。 （31170566）
