氮肥添加对青藏高原高寒草甸6个群落优势种生态化学计量学特征的影响

宾振钧, 王静静, 张文鹏, 徐当会, 程雪寒, 李柯杰, 曹德昊

Effects of N addition on ecological stoichiometric characteristics in six dominant plant species of alpine meadow on the Qinghai-Xizang Plateau, China

BIN Zhen-Jun, WANG Jing-Jing, ZHANG Wen-Peng, XU Dang-Hui, CHENG Xue-Han, LI Ke-Jie, CAO De-Hao

表1 氮素添加前土壤的养分状况

Table 1 Soil nutrient status before N addition

土层 Soil layer (cm) 有机质 Organic matter (g·kg-1) 全氮 Total nitrogen (g·kg-1) 全磷 Total phosphorus (g·kg-1) pH 0-15 70.5 3.72 0.984 6.33 15-30 36.3 1.95 0.712 6.44 30-45 24.0 1.23 0.618 6.63