乌兰布和沙漠固沙树木真菌病害区系

Fungi Diseases Flora of Sand-Fixation Trees in Wulanbuhe Desert

对乌兰布和沙漠不同生境下3个采集地固沙树木真菌病害进行了调查,采集到罹病树木10科25种(属),鉴定出病害78种,病原真菌58种,比较了不同树种及不同组织器官的病害类型和病原生态群落组成的差异。讨论了病原物的生态地理区系,并分为沙林中心植物园、106治沙工区、乌海治沙林场3个固沙造林区。

3 different sites at wulanbulae clesert were cnoosea to invesugate iungl diseases oi sano-fixation trees. 10 familys including 25 tree species infected with fungus were collected. 78 types of diseases and 58 kinds of pathological fungi were identified. Diseases and ecological community of pathogeny in different trees and different organs were compared. Eco-geographical flora of pathogeny was discussed,and divided in to 3 forestation areas, such as sand- forest center arboretum, 106 sand- fixation areas and Wuhai sand-fixation forest.