鸭绿江口芦苇沼泽湿地斑背大尾莺的生境需求  

Habitat Requirements of Marsh Grassbird in Yalu River Estuary Reed Marsh

作　　者：高明[1] 

机构地区：[1]辽东学院城市建设学院,辽宁丹东118003

出　　处：《辽东学院学报（自然科学版）》2012年第1期9-13,共5页Journal of Eastern Liaoning University:Natural Science Edition

基　　金：辽东学院科研基金项目(2006z-18)

摘　　要：4年共观察到斑背大尾莺雄鸟243只,巢53个;39.6%巢具有巢盖,上有出入口,平均为西北方向;观测证实了苇塘的生产管理即灌溉、收割、火烧等对斑背大尾莺的繁殖有重要影响;在5月中旬之前,进行浅灌(<8 cm),同时保留芦苇-拂子茅、细叶灯心草、苔草等枯草斑块,将有利于该种群在该区域的扩大。斑背大尾莺受枯草斑块的垂直双层结构的吸引;通过确定适合的巢高度防范地面淹水和天敌危害;选择适合的盖度及装饰巢口防范白尾鹞;选择适合密度的草丛,确保幼鸟离巢后在巢周围的活动安全,防止跌入水中。Two hundred and forty-three male Marsh Grassbirds and fifty-three nests of the birds were observed in 4 years at reed-grass marsh in Yalu River estuary.39.6% of the nests had covers with commonly northwest-toward entrances.It was also found that activities of reed production management such as irrigation,harvest and burning greatly influenced the breeding of the bird.Shallow irrigation of the marsh less than 8 cm before mid-May and preservation of the patches of reed and withered grasses（Calamagrostis epigejos,Juncus gracillimus,Carex scabrifolia and Carex rugurosa） would be helpful to enlarge the population.Marsh Grassbirds were attracted by the double vertical structure of reed-grass,and they would heighten their nests to escape from flood and enemy.They would cover and decorate their nest entrance to prevent Circus cyaneus.Besides,they would place their nests in grass with proper density to ensure the safety of fledged young birds and prevent them from water.

关 键 词：斑背大尾莺 芦苇-拂子茅沼泽 生境需求 鸭绿江河口 

分 类 号：X503.224[环境科学与工程—环境工程]