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测量旱田土壤入渗的方法,有人工降雨法、同心环法等。作者对同心环自动供水装置又作了改进,下面介绍改进后的双环入渗仪的结构、原理和使用。 一、结构主要部件为:双环、量水筒和加水器(图1)。 1.双环内环直径0.437米(面积0.15米~2),外环直径0.618米(面积0.30米~2),高度0.4米。双环入土深20—30厘米。这次设计的尺寸比前人使用的尺寸稍
Methods for measuring soil infiltration in drylands include artificial rainfall and concentric ring methods. The author of the concentric ring automatic water supply device has been improved, the following describes the improved double ring infiltration meter structure, principles and use. First, the structure of the main components: double loop, the amount of water tube and water heater (Figure 1). 1. Double ring inner diameter of 0.437 meters (area of 0.15 m ~ 2), the outer diameter of 0.618 meters (an area of 0.30 m ~ 2), a height of 0.4 meters. Bicyclic deep into the soil 20-30 cm. The size of the design than the previous use of the size slightly