An Estimation Procedure for Range Composition Problems
作者:
DennisJ. Aigner,
期刊:
Journal of the American Statistical Association
(Taylor Available online 1965)
卷期:
Volume 60,
issue 309
页码: 308-319
ISSN:0162-1459
年代: 1965
DOI:10.1080/01621459.1965.10480793
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
In this article a method is presented which provides an efficient technique for estimating herbage weight composition on range units. The estimator derives from a weighted regression of species weight on species cover, i.e., the proportion of ground area covered by foliage of the species. Use of the present method of estimation in conjunction with a “pin-frame” field sampling procedure results in quite substantial savings in sampling cost for given precision, compared to the usual method for estimating weight composition.
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