Water potential reflects energy level of soil water and the gradient of water potential is an impotent factor describing direction and velocity of water flow.
水势反映土壤水的能态，而水势梯度则是决定水流方向和速度的重要因素。
Affected by hydraulic potential gradient, the unsaturated soil water in the furrow soil may supply laterally the ridge soil of adjacent furrow.
受水势梯度的影响，犁沟内非饱和水可以侧向补给相邻畦埂的土壤。
Meanwhile, by the influence of water vapor in the process of heating, the gradient of equivalent potential temperature weakened, and baroclinic term also declined, so the total MPV increases.
同时，在此过程中受水汽加热的影响，水平相当位温梯度减弱，负的斜压项减弱，使得总的湿位涡正值增大。
Meanwhile, by the influence of water vapor in the process of heating, the gradient of equivalent potential temperature weakened, and baroclinic term also declined, so the total MPV increases.
同时，在此过程中受水汽加热的影响，水平相当位温梯度减弱，负的斜压项减弱，使得总的湿位涡正值增大。
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