青海森林生态系统中灌木层和土壤生态化学计量特征

杨文高,字洪标,陈科宇,阿的鲁骥,胡雷,王鑫,王根绪,王长庭

Ecological stoichiometric characteristics of shrubs and soils in different forest types in Qinghai, China

YANG Wen-Gao,ZI Hong-Biao,CHEN Ke-Yu,ADE Lu-Ji,HU Lei,WANG Xin,WANG Gen-Xu,WANG Chang-Ting

表1 青海不同林分土壤有机碳(SOC)、全氮(TN)、全磷(TP)含量及化学计量比特征(平均值±标准误差)

Table 1 Soil organic carbon (SOC), total nitrogen (TN), total phosphorus (TP) content and stoichiometry characteristics in different forest types in Qinghai (mean ± SE)

林分类型 Forest type	SOC含量 SOC content (mg·g^-1)	TN含量 TN content (mg·g^-1)	TP含量 TP content (mg·g^-1)	C:N	C:P	N:P
白桦林 Betula platyphylla forest	91.43 ± 33.66^bc	3.85 ± 1.43^ab	0.84 ± 0.12^a	24.39 ± 4.24^ab	109.57 ± 39.04^b	4.58 ± 1.56^bc
毛白杨林 Populus tomentosa forest	72.80 ± 14.33^bc	2.95 ± 0.52^b	0.75 ± 0.08^a	24.77 ± 2.83^ab	99.34 ± 25.78^b	3.99 ± 0.82^c
红桦林 Betula albosinensis forest	133.81 ± 12.03^a	4.90 ± 0.77^ab	0.83 ± 0.02^a	27.53±2.20^a	161.04 ± 12.45^a	5.89 ± 0.82^abc
青扦林 Picea wilsonii forest	99.11 ± 24.60^ab	3.49 ± 0.67^ab	0.85 ± 0.18^a	28.39 ± 4.14^a	118.21 ± 25.62^ab	4.23 ± 0.95^bc
山杨林 Populus davidiana forest	59.21 ± 22.57^c	3.60 ± 0.94^ab	0.71 ± 0.16^a	16.6 ± 5.09^c	82.02 ± 18.60^b	5.29 ± 1.94^abc
圆柏林 Sabina chinensis forest	88.97 ± 49.70^bc	5.86 ± 2.92^a	0.72 ± 0.81^a	15.70 ± 5.63^c	120.54 ± 59.85^ab	7.67 ± 3.53^a
云杉林 Picea asperata forest	100.20 ± 37.05^ab	5.85 ± 2.80^a	0.87 ± 0.18^a	19.50 ± 7.88^bc	121.75 ± 44.38^ab	6.97 ± 3.06^ab
平均值 Average	95.11 ± 37.63	5.17 ± 2.60	0.82 ± 0.16	20.55 ± 7.35	117.72 ± 44.32	6.35 ± 2.98