晋西北丘陵风沙区柠条锦鸡儿叶片与土壤生态化学计量特征

刘婧, 缑倩倩, 王国华, 赵峰侠

Leaf and soil ecological stoichiometry of Caragana korshinskii in windy and sandy hilly region of northwest Shanxi, China

LIU Jing, GOU Qian-Qian, WANG Guo-Hua, ZHAO Feng-Xia

表1 晋西北丘陵风沙区柠条锦鸡儿林调查样地基本情况(平均值±标准误)

Table 1 Basic information of the experimental plots of Caragana korshinskii forest in windy and sandy hilly region of northwest Shanxi (mean ± SE)

林龄 Forest age (a)	经度 Longitude (E)	纬度 Latitude (N)	海拔 Altitude (m)	坡向 Aspect	坡度 Slope degree (°)	株高 Plant height (cm)	生物量 Biomass (kg·m^-2)	郁闭度 Crown density
0 (撂荒地) 0 (Abandoned land)	111.78°	38.96°	1 446
	111.78°	38.96°	1 433
	111.74°	38.99°	1 440
6	111.79°	38.96°	1 392	南 South	6	104.00 ± 15.18^a	0.61 ± 0.22^a	0.06
	111.79°	38.97°	1 390			107.00 ± 8.78^a	0.37 ± 0.11^a	0.05
	111.79°	38.97°	1 389			97.17 ± 5.04^a	0.38 ± 0.12^a	0.04
平均 Mean						102.72 ± 9.67^a	0.45 ± 0.15^a	0.05
12	111.78°	38.97°	1 433	东南 Southeast	4	138.57 ± 8.00^abc	1.47 ± 0.12^ab	0.73
	111.77°	38.77°	1 440			133.15 ± 6.85^ab	1.94 ± 0.85^abc	0.78
	111.76°	38.98°	1 446			141.65 ± 6.30^abc	0.92 ± 0.18^a	0.61
平均 Mean						137.79 ± 7.05^abc	1.44 ± 0.38^ab	0.71
18	111.77°	38.98°	1 435	东南 Southeast	5	201.50 ± 12.12^cde	5.02 ± 2.36^abcde	1.05
	111.78°	38.98°	1 447			183.92 ± 11.11^cde	2.32 ± 0.44^abc	1.08
	111.78°	38.98°	1 453			188.48 ± 15.42^cde	4.62 ± 0.89^abcd	1.06
总计 Total						191.30 ± 12.88^cde	3.99 ± 1.23^abc	1.06
40	111.78°	38.97°	1 323	南 South	4	221.04 ± 8.15^e	7.00 ± 0.98^bcdef	0.98
	111.79°	38.97°	1 396			198.00 ± 9.87^bcde	6.83 ± 0.28^bcdef	1.14
	111.79°	38.97°	1 404			204.22 ± 7.74^bcd	4.69 ± 1.35^abcd	1.23
平均 Mean						207.75 ± 8.59^bcd	6.17 ± 0.87^bcdef	1.12
50	111.78°	38.98°	1 428	南 South	4	218.17 ± 5.42^de	10.37 ± 6.05^def	1.11
	111.78°	38.98°	1 448			237.32 ± 3.81^de	7.70 ± 1.66^cdef	1.07
	111.78°	38.97°	1 472			225.38 ± 7.65^de	7.43 ± 0.71^cdef	1.05
平均 Mean						226.96 ± 5.63^de	8.05 ± 2.81^cdef	1.08