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首页> 外文期刊>Spanish Journal of Agricultural Research >Effect of tillage and water pressure head on the hydraulic properties of a loamy soil surface
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Effect of tillage and water pressure head on the hydraulic properties of a loamy soil surface

机译：耕作和水压压头对壤土表面水力特性的影响

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摘要

The effect of different tillage practices on soil hydraulic properties was studied in a mature, drip irrigated apricot orchard with a 7% slope, in Murcia (SE Spain). The soil had a loamy texture. Three soil tillage treatments were applied between the rows of trees: 1) control treatment (non-tilled, although weeds were cut to ground level using a blade attached to a tractor following the common practice of the area), 2) perforation treatment, in which soil surface was mechanically perforated with an adapted plough, and 3) mini-catchment treatment, in which small banks were manually raised perpendicular to the line of emitters. The perforation and mini-catchment treatments increased the infiltration of water into the soil surface: the hydraulic conductivity and sorptivity values were higher than those of the control treatment. Both tillage treatments were designed to prevent runoff and both increased rainwater penetration of the soil. They may therefore be useful as part of water management strategies in semiarid areas with scarce water resources, such as Mediterranean countries. The process of infiltration appears to be controlled more by gravity than by capillary forces since the values for time related to gravity were small.
机译：在穆尔西亚（西班牙东南部），在坡度为7％的成熟滴灌杏园中研究了不同耕作方式对土壤水力特性的影响。土壤质地肥沃。在两排树木之间进行了三种土壤耕作处​​理：1）对照处理（不倾斜，尽管按照该地区的常规做法使用附着在拖拉机上的刀片将杂草切成地面），2）穿孔处理，在土壤表面用适合的耕作机械打孔，以及3）小型集水处理，在其中手动将小堤垂直于排放源线抬高。穿孔和小集水处理增加了水向土壤表层的渗透：水力传导率和吸水率值高于对照处理。两种耕作处理均旨在防止径流和增加雨水对土壤的渗透。因此，它们可能在水资源匮乏的半干旱地区（例如地中海国家）中用作水资源管理策略的一部分。由于与重力有关的时间值很小，因此渗透的过程似乎受重力而非毛细管力的控制。

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