Oxisol - Wikipedia
网页Oxisols are a soil order in USDA soil taxonomy, best known for their occurrence in tropical rain forest within 25 degrees north and south of the Equator. In the World Reference Base for Soil Resources (WRB), [1] they belong mainly to …
富铝土 - 百度百科
网页本土纲（Oxisol）、老成土纲（Utisol）；相当于 联合国 分类的网纹土（Plinthosol）、高活性强酸土（Alisol）、铁
Oxisols | Soil & Water Systems | University of Idaho
网页Oxisols (from French oxide, "oxide") are very highly weathered soils that are found primarily in the intertropical regions of the world. These soils contain few weatherable minerals and are often rich in Fe and Al oxide minerals. Most of these soils are characterized by extremely low native fertility, resulting from very low nutrient reserves ...
Oxisol | Soil Formation, Clay Minerals, Nutrient Retention
网页Oxisols are characterized by a thick subsurface layer (the oxic horizon) that contains kaolin -group clay minerals and metal oxides in a finely textured matrix with very little or no easily weathered silicates.
Oxisols - Natural Resources Conservation Service
网页The central concept of Oxisols is that of soils of the tropical and subtropical regions. They have gentle slopes on surfaces of great age. They are mixtures of quartz, kaolin, free oxides, and organic matter. For the most part they are nearly featureless soils without clearly marked horizons.
Oxisol - an overview | ScienceDirect Topics
网页Oxisols are highly weathered soils and often have a reddish, yellowish, or grayish color. They are commonly located on the gentle undulating surfaces of geologically old surfaces in tropical and subtropical regions where they occupy about …
Oxisol - an overview | ScienceDirect Topics
网页Oxisols are reddish, yellowish, or grayish soils. They are most common on the gently undulating surfaces of geologically old surfaces in tropical and subtropical regions where they occupy approximately 11.8 million km2. Oxisol profiles are distinctive because of the lack of obvious horizons.
Highly Weathered Tropical Soils (Oxisol) - University of Hawaiʻi
网页Highly Weathered Tropical Soils (Oxisol) Typical Characteristics. Climate: Oxisols are the most highly weathered soil order. These soils form under year-round hot, tropical climates. Although climatic pattern may have changed over the course of the soil’s history, these soils formed under moist climates.
5.10 - Oxisols | Soil Genesis and Development, Lesson 5 - Soil ...
网页Oxisols are the most weathered of the 12 soil orders in the USDA soil classification system. (See Lesson 2 -- Processes of Weathering.) They are composed of the most highly weathered tropical and subtropical soils, and are formed in hot, humid climates that receive a …
Oxisols - ScienceDirect
网页1999年1月1日 · Some oxisols form from in situ rock weathering or easily weathered basic rock, but many form in polycyclic sediments that have undergone weathering prior to deposition. Oxisols are present in all soil moisture regimes, but most occur in perudic, udic, or ustic soil moisture regimes.