关键词: 美味蘑菇, 美味蘑菇, 子实体, 营养成分

Abstract: Constructions of housing, tunnel and subway in cities produce the 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 to 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 to three meters. Meanwhile Camptotheca acuminata had medium status. Growth tendency of diameter at breast height of four trees species was similar to survival rates. Respiratory rates of soil were 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, Liriodendron chinense× L. tulipifera was weak.