Analysis of Competition Experiments
Analysis of Competition Experiments
复制标题
竞赛实验分析
DOI：
10.2307/2528258
复制
发表时间：
1965
期刊：
影响因子：
1.9
通讯作者：
C. Mcgilchrist
中科院分区：
文献类型：
--
作者：
C. Mcgilchrist
一段时间以来，生物学家一直在研究一种植物物种与另一种植物物种靠近种植的影响。在某些情况下，一个物种的产量比单一栽培的产量增加，而在其他情况下则减少。一个物种被认为是一个很好的竞争者，如果它的产量普遍增加时，与其他物种种植。本文分析了在等总密度条件下，采用盆栽或小区试验，对纯林和混交林进行树种比较的结果。每一种都是单作，每两种的组合都是等比例的。假设只进行一次收获，每个物种要么只竞争一种营养素，要么竞争相同的营养素，对不同营养素的竞争之间没有区别。这样的分析先前已经由K. Sakai [1961]和威廉姆斯[1962]，虽然分析基本上类似于威廉姆斯的分析，但使用了不同的参数化，更接近于容易定义的生物学概念。
Biologists have, for some time, been studying the effect of growing one plant species in close proximity to another. In some cases the yield of a species is increased over its yield in monoculture and in other cases decreased. A species is regarded as a good competitor if its yield generally increases when grown with other species. This paper presents an analysis of an experiment in which p species are compared by growing pure stand and mixtures in pots or plots at equivalent total density of planting. Each species is grown in monoculture and each combination of two grown in equal proportion. It is assumed that only one harvest is made and that each species is competing either for just one nutrient or for the same nutrients with no differentiation being made between competition for differing nutrients. Such an analysis has previously been presented by K. Sakai [1961] and Williams [1962] and, although the analysis is essentially similar to that of Williams, a different parametrisation is used which corresponds more closely to easily defined biological concepts.