In order to make the results more cogent and precise, statistical method non-paired-t-test was introduced to detect the existence of edge effect.

• 为了使分析结果更具有说服力和准确性，从统计学的角度，利用非成对的数据的t-检验对边缘与内部生物多样性的差异进行了分析，从而验证边缘效应的存在与否。