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嵌套子集指在任何特定集合中出现的物种趋向于在更大的集合中也出现,即局部丰富的物种一般分布比较广泛,而局部稀少的物种则分布较窄。本文对嵌套性研究中的有关问题做一评述,并以西班牙的一个研究为范例讨论可以看出,通过数据(土壤类型和土壤集合)试验得出的规律性和生态学上的观点竟非常相似。研究采用了土壤数据集和在计量生态学应用的方法,包括嵌套计算程序(Nested Calcu lator Program)。结果表明:嵌套性在生物群落、土被或土链结构中的性质有相似之处,即地学系统中普遍存在着嵌套性。此方法用于土壤多样性的分析,在有计划的保护生物及土壤资源方面具有现实意义。
Nested subsets refer to the species that appear in any given set that tend to occur in larger sets, as well as the more abundant species in general, while the sparsely populated species are narrower. In this paper, a review is given of the relevant issues in the study of nestedness. Taking a Spanish study as an example, it can be seen that the regularity and ecological perspectives obtained through the data (soil type and soil pooling) similar. The study employed soil data sets and methods used in econometrics, including the Nested Calcu lator Program. The results show that there are similarities in the properties of nesting in biomes, soil or soil chains, that is, there is widespread nestedness in geosciences. This method is used to analyze soil diversity and is of practical significance in the planned conservation of biological and soil resources.