新疆野杏天然更新幼株的个体特征及空间分布格局

石荡, 郭传超, 蒋南林, 唐莹莹, 郑凤, 王瑾, 廖康, 刘立强

Characteristics and spatial distribution pattern of natural regeneration young plants of Prunus armeniaca in Xinjiang, China

SHI Dang, GUO Chuan-Chao, JIANG Nan-Lin, TANG Ying-Ying, ZHENG Feng, WANG Jin, LIAO Kang, LIU Li-Qiang

表2 新疆野杏种群更新等级划分标准

Table 2 Differentiating standard of regeneration grades of Prunus armeniaca populations in Xinjiang

基本结构 Basic structure 等级 Grade I II III IV Ⅴ 基径 Basal diameter (cm) ≤1 (1, 2] (2, 3] (3, 5] (5, 10] 高度 Height (cm) ≤30 (30, 60] (60, 100] (100, 200] >200 冠幅 Canopy (cm) ≤25 (25, 50] (50, 100] (100, 150] >150