Tree Seedlings in CRUI Land Use Project at Harvard Forest 1996

Forests recovering from agricultural legacies differ in many ways that influence tree seed dispersal and seedling establishment patterns. The number of seedlings (less than 0.5 m tall) of all tree species on a 1 x 1 m resolution across six land use legacy sites (2 plowed, 2 pastured, 2 permanent woodlot) in summer 1996 were recorded to test several predictions about seedling abundance, diversity, and dispersion patterns, and their relationships to forest structure, microclimates, and soil resources.

曾受农业活动干扰后处于恢复阶段的森林，在诸多特征上存在差异，这些差异会对树木种子传播与幼苗定植格局产生影响。本研究于1996年夏季，在6个具有不同土地利用遗留历史的样地（含2个曾翻耕样地、2个曾放牧样地、2个永久性小片林地）中，以1米×1米的分辨率记录了所有乔木物种株高低于0.5米的幼苗数量，以此验证多项关于幼苗丰度、多样性及空间分布格局的预设假说，以及这些格局与森林结构、微气候和土壤资源之间的关联。