Characterization of Placic Horizons in Ironstone Soils of Louisiana, USA

• 作 者: D. C. WEINDORF N. BAKR Y. ZHU
• 机 构: LouisianaStateUniversityAgriculturalCenter,UnitedStatesDepartmentofAgriculture-NaturalResourcesConse
• 出 处: 土壤圈：英文版
• 发表日期: 2010年4期
• 关键词: 路易斯安那州 美国东南部 土壤调查 胶层 表征 试验评估 水分状况 实验室分析 ortstein pedon petroferric contact Pe
• 基金项目: Supported by the LSU AgCenter, USA.

Placic horizons, defined as thin, wavy, hardened layers of iron and organic matter, are rare within the United States, occurring only in Washington, Alaska, and Hawaii. While ironstone is common in many soils of the southeastern United States, it is not k