祁连山排露沟流域青海云杉（<strong><i>Picea crassifolia</i></strong>）林土壤水分特征

祁连山排露沟流域青海云杉（Picea crassifolia）林土壤水分特征

芦倩, 李毅, 刘贤德, 赵维俊

Soil moisture variation characteristics of Picea crassifolia forestry in Pailugou Watershed of Qilian Mountains

Qian Lu, Yi Li, Xiande Liu, Weijun Zhao

表2 不同海拔青海云杉林土壤含水量（%）在不同土层间的Duncan法多重比较

Table 2 Duncan method for multiple comparisons of soil moisture of Picea crassifolia at different elevations between different soil layers

年份	土层深度 /cm	海拔/m
年份	土层深度 /cm	2 500	2 700	2 900	3 100	3 300
2016	0~10	38.87±16.93^aA	49.46±15.27^aA	81.17±16.61^aB	90.73±20.44^aB	112.21±22.87^aC
	10~20	27.00±10.20^bA	36.35±18.70^bA	70.70±21.75^aB	91.47±14.98^aC	103.77±22.67^aD
	20~30	23.83±8.83^bA	30.75±12.3^bA	72.58±11.51^aB	91.21±16.18^aC	94.06±19.4^aC
	30~40	23.35±7.00^bA	30.28±10.98^bA	67.91±10.39^bB	86.87±17.84^aC	88.02±20.60^bC
	40~50	20.56±10.40^bA	27.75±5.99^bB	61.42±7.27^bC	78.15±14.80^bD	86.06±21.4^bD
	50~60	18.30±5.25^bA	26.7±4.78^bB	54.83±6.04^bC	70.27±6.00^bD	83.85±12.96^bE
2017	0~10	37.06±17.87^aA	46.87±22.22^aA	99.79±20.62^aB	101.60±22.41^aB	121.43±17.23^aC
	10~20	28.12±12.68^bA	34.68±14.50^bA	84.10±17.06^aB	94.39±17.78^aC	107.35±18.44^aD
	20~30	25.72±10.12^bA	27.92±9.92^bA	78.54±10.80^aB	91.21±17.42^aC	97.14±29.99^aC
	30~40	23.73±7.51^bA	28.15±9.23^bA	69.89±8.20^bB	73.29±19.87^bC	77.54±25.78^bC
	40~50	23.04±6.82^bA	29.54±5.94^bB	65.53±8.19^bC	79.09±13.72^bD	85.24±25.60^bD
	50~60	25.13±7.05^bA	29.48±5.33^bB	65.45±7.66^bC	75.76±15.52^bD	86.72±14.73^bE