Determine soil, hydrologic, and climatic data necessary to more accurately define and determine hydric soils (technical methodology and standards). Visit the National Technical Committee for Hydric Soils (NTCHS) web page for more information.

Soil Data Access (SDA) Hydric Soils List. An SDA-populated select list is used to pick a state and SSA which enables creation of a "Hydric Soils Report" based upon those selections. The data is not static; it hits Soil Data Access Live. To reset the table hit F5 on the keyboard.

Included in this publication are the hydric soil indicators approved by the NRCS and the National Technical Committee for Hydric Soils (NTCHS) for use in identifying, delineating, and verifying hydric soils in the field.

Hydric soil is soil which is permanently or seasonally saturated by water, resulting in anaerobic conditions, as found in wetlands. Most soils are aerobic.

May 7, 2021 · In wetlands, hydric soil supports the growth and regeneration of vegetation that has adapted to grow in saturated/inundated and low-oxygen conditions. Oftentimes the soil can be used to help identify a wetland type for purposes like wetland delineation.

Mar 31, 2024 · Hydric soils aren’t simply wet soils; they are soils that have developed under conditions of frequent and prolonged saturation, ponding, or flooding, leading to a unique set of physical, chemical, and biological features. The key lies in the anaerobic environment created by this waterlogging.

Mar 30, 2025 · “soils that formed under conditions of saturation, flooding, or ponding long enough during the growing season to develop anaerobic conditions in the upper part.” In other words, soil that is frequently flooded or ponded for a long duration (longer than 7 days) during the growing season is hydric soil. In addition, anaerobic conditions must exist.

Definition of Hydric Soil A hydric soil is a soil that is saturated, flooded, or ponded long enough during the growing season to develop anaerobic conditions in the upper part. The folowing criteria reflect those sons that meet this definition. Criteria for Hydric Soils 1. …

Sep 3, 2020 · Soil and the inherent biogeochemical processes in wetlands contrast starkly with those in upland forests and rangelands. The differences stem from extended periods of anoxia, or the lack of oxygen in the soil, that characterize wetland soils; in …

Hydric soils facilitate & regulate the flow of water between groundwater systems & surface water systems. Biogeochemical cycling is dependent on the combination of aerobic & anaerobic conditions in hydric soils. The capacity of hydric soils to retain water & develop anaerobiosis promotes specific plant communities & unique wildlife habitats.