BFD5W - BFD5W: Usable field capacity 100 cm - OGC API Features

Vineyard soils (rigosols) are soils that have been significantly altered by human activity. The soils, which are highly differentiated according to structure and properties, were combined and systematized into guide soil shapes. For a clear map presentation, the guide soil forms are divided into groups of uniform type of formation or rock type.:The usable field capacity of a soil is the part of the field capacity that is available for vegetation. It contains the amount of water that a site far from groundwater can retain against gravity in natural storage after sufficient saturation and corresponds to a suction voltage of pF 1.8 to 4.2 according to the convention.葡萄园土壤（rigosols）是经人类活动显著改造的土壤。该类土壤因结构与属性差异显著，被整合并系统化为标准土壤构型（guide soil shapes）。为保障地图展示清晰，该类标准土壤构型（guide soil forms）按成因类型或岩石类型的统一性划分为若干组别。土壤有效田间持水量指田间持水量中可被植被利用的部分。其指远离地下水位的土体经充分饱和后，在自然储水状态下可克服重力作用留存的水量，按行业惯例对应pF值1.8至4.2的土壤水吸力范围。