摘要
１９８５－１９８７年间，作者在中国东北大、小兴安岭林区，根据三阶抽样的原理，选择１６块样地，设置并调查２０２条样带，总长２４７６．６ｋｍ，遇见３０９条驼鹿足迹链。由此，明确了驼鹿在中国的分布区域并确定总栖息面积为１９万多ｋｍ￣２，平均分布密度为０．０５１９头／ｋｍ￣２．种群数量为９９５５±３９７头（α＝０．２）．其种群下降率年平均达６．３％，且呈继续下降趋势，亟待保护。
Using the 3 orders sampling method,tHe authors selected 16 samphng sites andreplaced 202 sampling lines which were 2 476.6km in length,and 309 trail lines of moose(Alces alces) were cotinted in Da and Xiao Xinganling Mountains of Northeastern China.during the winter of 1985-1987.From these data,the geographical distribution andpopulation size were determined as follows:the total area of moose habitat is about 190000km￣2,the average density is 0.0519 individuals/km￣2 and the population size is 9 955+397 individtials. In the meantime,annual descending rate was 6.3%.Now the moosepoptilation in China is greatly need to protect.Lastly,the reasons of causing the moosepoptilation to reduce,as well advantage and shortcoming of the investigation methodwere disctissed.
出处
《兽类学报》
CAS
CSCD
北大核心
1995年第1期11-16,共6页
Acta Theriologica Sinica
基金
国家林业部八五攻关项目
关键词
驼鹿
分布
数量
现状
Moose
Population size
Distribution
