耕作模式对河西绿洲灌区夏玉米农田土壤呼吸的影响

冯彦淞, 杨彩红, 强玉泉

Effects of tillage patterns on soil respiration in summer maize field in Hexi Oasis irrigation area

Yansong Feng, Caihong Yang, Yuquan Qiang

表1 不同耕作模式下土壤呼吸速率与土壤温度（5 cm）间的关系及土壤呼吸温度敏感性系数

Table 1 The relationship between soil respiration rate and soil temperature （5 cm） under different tillage patterns and the sensitivity coefficient of soil respiration temperature

处理	线性函数		指数函数		Q₁₀
处理	拟合方程	拟合系数R²	拟合方程	拟合系数R²	Q₁₀
NT W/M	$y = 0.2723 x - 2.8075$	0.45	$y = 0.5921 e^{0.07517 x}$	0.44	2.12
CT W/M	$y = 0.2150 x - 1.012$	0.39	$y = 1.316 e^{0.0470 x}$	0.39	1.60
NT W-G→M	$y = 0.2791 x - 2.190$	0.55	$y = 0.9053 e^{0.06553 x}$	0.53	1.93
CT W-G→M	$y = 0.2821 x - 1.983$	0.55	$y = 1.066 e^{0.06125 x}$	0.53	1.85
NT W→M	$y = 0.3969 x - 4.221$	0.58	$y = 0.5059 e^{0.0979 x}$	0.58	2.66
CT W→M	$y = 0.2672 x - 1.470$	0.59	$y = 1.131 e^{0.0606 x}$	0.58	1.83