AN APPROACH TO MODELING AIR AND WATER STATUS OF HORTICULTURAL SUBSTRATES
AN APPROACH TO MODELING AIR AND WATER STATUS OF HORTICULTURAL SUBSTRATES
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园艺基质的空气和水状况建模方法
DOI：
10.17660/actahortic.1989.238.7
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发表时间：
1989
期刊：
影响因子：
--
通讯作者：
W. Fonteno
中科院分区：
文献类型：
--
作者：
W. Fonteno
人们对用作容器中植物生产的根介质的多孔基质的水力特性进行了大量研究。大多数讨论都集中在定义有效描述空气和水状况所需的参数上。空气和水的量是介质、容器几何形状和根系发育程度的物理影响的结果。已经开发了五个容器状态参数来描述特定介质/容器/植物组合在排水平衡时的空气和水状态：总孔隙率、容器容量、空气空间、可用水和不可用水。经验方法和数学程序相结合来确定这些参数。容器的几何形状对测试基材的空气和水状态有显着影响。提出了一个整体概念模型，以帮助描述文化习俗对容器介质的空气和水含量的压倒性影响。
There have been numerous investigations into the hydraulic properties of porous substrates used as root media for plant production in containers. Much of the discussion has focused on defining the parameters necessary to effectively describe this air and water status. The quantity of air and water is the result of physical influences of the medium, container geometry and extent of root development. Five container state parameters have been developed to describe the air and water status of the particular medium/container/plant combination at drainage equilibrium: total porosity, container capacity, air space, available water, and unavailable water. Empirical methods and mathematical procedures were combined to determine these parameters. Container geometry had a pronounced effect on the air and water status of substrates tested. An overall conceptual model is presented to help describe the overriding effects of cultural practices on air and water content of container media.