闽北阔叶林主要种群分布格局取样技术的研究

Study on Sampling Techniques for Spatial Distribution Pattern of Main Tree Species Population in Broad-leaved Forest in Northern Fujian

本文通过对闽北万木林自然保护区内三个不同森林群落类型的取样，比较了随机样方法、相邻格子样方法、中心点四分法和最近相邻法在分布格局研究中的效用及适用性。结果表明：万木林阔叶林主要种群分布格局里聚集分布型；四种方法具有类似的精确度；相邻格子样方的抽样误差最小，在该研究中最适用，且最小样方数为１６。

The effectiveness of four sampling methods on analysing spatial distribution patterns was presented in this paper,all sampling data derived from three different communities in Wanmulin Forestry Natural Reserve in Jian'ou,Fujian province, the four sampling methods including rando, quadrats method, contiguousgrid quadrats method,poing-centered quarters method and nearest neighbour method.The analysing results indicated that the four different sqmpling methods had similar precision, but contiguous-grid quadrats method had minimum errors, therefor, contiguous-grid quadrats method was the most practical in this research and the minimumal quadrats number was deduced as 16.