这关键区别between belt and line transect is that皮带样带使用以线上为中心的矩形区域来收集信息,而线置则使用直线收集数据。
生态采样有助于了解生物在其环境中的分布和丰度。在一项生态调查中,采样在特定的时间内定期进行栖息地, over an extended period of time. Ecological sampling methods can be随机抽样或系统抽样。In systematic sampling, samples are taken at intervals along a line drawn across areas where there are clear environmental gradients. There are two types of systematic sampling methods as line transect method and belt transect method. Both line and belt transects show zonation of物种along some environmental gradient.
CONTENTS
1。概述和关键差异
2。什么是线样本
3。What is Belt Transect
4。皮带和线样带之间的相似性
5。Side by Side Comparison – Belt vs Line Transect in Tabular Form
6.Summary
What is a Belt Transect?
样带是一个系统抽样方法。它is a rectangular area centred on a line that is set across an area having a clear environmental gradient. In other words, a belt transect can be considered as a widening of the line transect to form a continuous belt or a series of quadrats. Hence, this method produces more data than a line transect. This method uses a quadrat to collect data. Quadrats are placed over the line to collect the data. Once the plants and/or animals inside the quadrat are identified, their abundance can be estimated. It also can be taken as a permanent sampling plot to gather data for a longer period of time.

Figure 01: Belt Transect – Quadrat
Generally, belt transects provide a lot of data on individual species at different points along the line and their range. It allows the construction of bar charts to show how the abundance of each individual species changes within its range. Moreover, the belt transect method is useful to determine the relative dominance of species along the line.
什么是线样本?
Line transect is another systematic sampling method similar to the belt transect method. In the line transect, a line is drawn across a habitat. It can be simple as a string or rope placed on the ground across a habitat. The organisms that actually touch the line are considered in this method. Therefore, sampling is restricted only to organisms that touch the line.

图02:线样本
尽管该方法类似于皮带样带,但它会产生有限的信息。它仅显示沿线发生的变化。记录物种的存在和不存在。它说明了沿线的特定梯度或线性图案。数据以图表的形式显示,使用用于缩放的不同物种的符号。线样本不会产生有关单个物种相对密度的信息。但是该方法比皮带样带方法快。
What are the Similarities Between Belt and Line Transect?
- 皮带和线样本是系统采样的类型。
- 它们是类似的方法。
- 在这两种方法中,都在有清晰的环境梯度的抽样区域设置了采样线。
- 两种方法都以固定的间隔进行样品。
- 这sampling intervals depend on the individual habitat, the time and effort that can be allocated to the survey in both methods.
- 可以通过线的整个长度或沿线的特定点进行采样。
皮带和线样带有什么区别?
皮带样带是一种系统的采样方法,它使用矩形区域,该矩形区域以跨栖息地的线为中心。同时,线样带是一种系统的采样方法,它使用跨栖息地标记的直线。因此,这是皮带和线样带之间的关键区别。此外,在皮带横切方法中,将四元组整个沿横向线进行采样,或者将Quadrats放在预定的间隔上,并进行采样。但是,在管线样品方法中,采样严格限于实际接触线的生物。因此,这是皮带和线样带之间的另一个显着差异。
Moreover, the belt transect method is time-consuming. But, the line transect method is quicker than the belt transect. Most importantly, the belt transect method will supply more data than a line transect. In addition to these, belt transects produce data on the relative densities of individual species. But, line transects do not produce as much information on the relative densities of individual species.
下面的信息图列出了表格形式的皮带和线样带之间的更多差异。
摘要 - 皮带vs线样带
总而言之,皮带样带方法利用一个以线路为中心的矩形区域来收集数据。它使用Quadrat。确定了四核内部的植物和/或动物,并估计它们的丰度。相比之下,线样本使用直线收集数据。在线横切方法中,记录接触线的生物。此外,皮带样带方法提供了有关单个物种的相对密度的信息,而线样方法没有产生有关单个物种相对密度的太多信息。但是,在这两种方法中,数据收集都可以连续或中断(定期间隔)。它们有助于确定栖息地中物种的逐渐变化。因此,这总结了皮带和线样带之间差异的摘要。
参考:
1.“如何进行生态抽样”乡村。在这里可用。
2.“为什么使用线样本?”乡村。在这里可用。
图片提供:
1。“Quadrat veg analysis” Bysandwich(CC BY-NC-ND 2.0)通过Flickr
2.“巨型海洋调查:沿着横断线工作”ria tan(CC BY-NC-ND 2.0)通过Flickr
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