摘要
利用矩估计和一个稳健估计方法来处理植物学家在林地的地面植被群落调查数据.在假定已经发现一些稀有植物的情况下,通过统计推断得到那些未被发现的植被的种类数.
Two methods （moment estimator, bootstrap estimator） are presented for estimating the number of rare species by the sampling of quadrats. These sampling are often used by field ecologists. Two explicit estimators are derived in the paper on the assumption that investigators have found some rare species. An illustration study is given to show effectiveness of the methods.
出处
《河南教育学院学报（自然科学版）》
2006年第3期44-46,共3页
Journal of Henan Institute of Education(Natural Science Edition)
关键词
植被群落
多重抽样
矩估计
bootstrap估计
species in woodland vegetation
multisampling
moment estimator
bootstrap estimator
