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.pdf

2014, 38 (3): 231–237 doi: 10.3724/SP.J.1258.2014.00020 Chinese Journal of Plant Ecology 6 1 1 1 1* 1 2 2 1, , 730000; 2, 730000 , , 6(N)(C)N (P): , 6NP, : (Oxytropis ochrocephala), 24.52.51 g·kg–1, NP; –1 , (Kobresia myosuroides)N , 5N P 11.5–18.11.49–1.72 g·kg (Elymus nutans)P, , NP , 6CP; 5N, N , 6N:P7.3–11.2, NN, , 5 N:P16, P, N, N, N, N, 5NN , , , , , N:P Effects of N addition on ecological stoichiometric characteristics in six dominant plant species of alpine meadow on the Qinghai-Xizang Plateau, China 1 1 1 1* 1 2 BIN Zhen-Jun , WANG Jing-Jing , ZHANG Wen-Peng , XU Dang-Hui , CHENG Xue-Han , LI Ke-Jie , and CAO 2 De-Hao 1School of Life Science, Lanzhou University / State Key Laboratory of Grassland Agro-ecosystems, Lanzhou University, Lanzhou 730000, China; and 2 The School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China Abstract Aims Our purpose was to characterize the effects of nitrogen (N) addition on plant carbon (C), N, phosphoru