保墒增温剂的作用原理土壤水分蒸发,主要是由于土壤毛细管水通过毛细管作用,不断被输送到地表汽化损失所致。若能封闭毛细管,阻止水汽分子向大气中散失,或增加土壤水稳性团粒结构,阻断土壤毛细管的连续性,使土壤水分蒸发速度减慢,以及降低土壤毛细管水的表面张力,减小水分上升的高度,都可达到抑制土壤水分蒸发的目的。根据这些原理可以应用某些有机化学物质来抑制水分蒸发,如:高级脂肪酸(高碳酸)、高级脂肪醇(高碳醇)类,表面活性剂类,树脂类。第一类物质的成品 Moisturizing effect of warming agent soil moisture evaporation, mainly due to the capillary action of capillary water through the soil, continue to be transported to the surface vaporization loss caused. If the capillaries can be closed to prevent the loss of water vapor molecules to the atmosphere, or to increase the stability of soil water and aggregate, blocking the continuity of soil capillaries, slowing the evaporation of soil moisture, reducing the surface tension of soil capillary water and reducing the water content Rise of the height, can achieve the purpose of inhibiting soil moisture evaporation. According to these principles, some organic chemicals can be used to suppress the evaporation of water, such as higher fatty acids (high carbon acids), higher fatty alcohols (higher alcohols), surfactants, and resins. The first category of material products