Larsen et al. (2019) found stubble heights measured at a systematic interval resulted in higher variability and lower stubble heights than samples collected at random. As the authors do not suggest an environmental mechanism for these outcomes, their conclusions likely reflect differences in the number of plants evaluated at each plot and the low number of independent observers rather than the sample design.

中文翻译：

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批评拉尔森等。（2019），由于系统和随机样本设计而导致的发茬高度估计值的差异

Larsen等。（2019）发现以系统间隔测量的残茬高度导致的随机性高于随机采集的样本，从而导致较高的可变性和较低的残茬高度。由于作者没有建议这些结果的环境机制，因此他们的结论可能反映了每个样地评估的植物数量的差异以及独立观察员的数量较少，而不是样本设计的差异。