重金属在土壤_水稻系统中的行为特性  

A Study of Population Structure and Distribution Pattern of Heptacodium miconioides in the Tiantai Mountain, Zhejiang.

作　　者：王新[1] 吴燕玉[1] 

机构地区：[1]中国科学院沈阳应用生态研究所

出　　处：《生态学杂志》1997年第4期10-14,共5页Chinese Journal of Ecology

摘　　要：重金属在土壤＿水稻系统中的行为特性王新吴燕玉（中国科学院沈阳应用生态研究所，１１００１５）ＢｅｈａｖｉｏｕｒＰｒｏｐｅｒｔｙｏｆＨｅａｖｙＭｅｔａｌｓｉｎＳｏｉｌ＿ＲｉｃｅＳｙｓｔｅｍ．ＷａｎｇＸｉｎ，ＷｕＹａｎｙｕ（ＩｎｓｔｉｔｕｔｅｏｆＡｐｐｌ...The population structure and distribution pattern of Heptacodium miconioides , a rare plant in the Tiantai Mountain of Zhejiang province were studied in the paper. The size classes of the population structure can be divided as follows according to their proportion: class Ⅳ, medium_size trees and class Ⅲ, small trees. But there was no class Ⅰ, seedling. The population age structure belong to mid senescent type. As for the height class structure, the trees of 6-8 metres height were the most numerous, up 28.45% of the total; the trees of 8-10 metres height were 21.97%; the tallest trees were less than 14 metres. The whole population was characterized with the clump, including both the class Ⅲ small trees and the class Ⅳ medium size ones. However, the class Ⅴ, big trees was featuring the uniform distribution. The clump intensity was gradually reduced from the small trees to the big ones.

关 键 词：土壤 水稻 重金属 行为特性 

分 类 号：S154.4[农业科学—土壤学] S511.01[农业科学—农业基础科学]