3 SeasonalHighWaterTable Hydric Handout

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ACT PRESENTATION 3 SEASONAL HIGH WATER TABLE INDICATORS – FLORIDA HYDRIC SOIL INDICATORS OCTOBER 2012 David Hammonds, Environmental Manager Florida Department of Health Division of Disease Control and Health Protection Bureau of Environmental Health Onsite Sewage Programs 850-245-4570 Much of the material used in this presentation is originally from Wade Hurt, Soil Scientist at the University of Florida. SHWT Issues ã Familiarity with redoximorphic processes and recognizing their morphological
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   Accelerated Certification Training, Seasonal High Water Table Indicators –Hydric Indicators,October 20121  ACT PRESENTATION 3 SEASONAL HIGH WATER TABLE INDICATORS – FLORIDA HYDRIC SOIL INDICATORS OCTOBER 2012  David Hammonds, Environmental Manager Florida Department of Health Division of Disease Control and Health Protection Bureau of Environmental Health Onsite Sewage Programs 850-245-4570  Much of the material usedin this presentation issrcinally from Wade Hurt,Soil Scientist at theUniversity of Florida.SHWT Issues ã Familiarity with redoximorphic processes and recognizing theirmorphological expressions insoils facilitates onsitedetermination of depth to soilsaturation or the probability of inundation.   Accelerated Certification Training, Seasonal High Water Table Indicators –Hydric Indicators,October 20122 Hydric Soil Indicators (HSI) ã  Are seasonal high water table indicators ã Must be used for the first 12 inches of anyevaluation ã Can be used at anydepth to determineSHWT ã “Hydric” status of soil is notregulated byDOH ã “Hydric” just means that the SHWT is within a specific distance from the soilsurface    AnIntroductionto FloridaHydric Soilsand HydricSoil Terminology Field Indicators of Hydric Soils in the US ã  This lecture pertains to the publication Field Indicators of Hydric Soils in the US,  Version 7.0, 2010   Accelerated Certification Training, Seasonal High Water Table Indicators –Hydric Indicators,October 20123 Regionalization of Hydric Soil Indicators ã  The National Technical Committee for HydricSoils (NTCHS) has approved each of theindicators for use in specific regions of the US(USDA, SCS. 1981). Most are based on LandResource Regions (see next slide). Some are basedon the smaller Major Land Resource Areas(MLRAs). ã  Appendix 1 in Field Indicators of Hydric Soils in the US  is a listing of the indicators approved foruse in each LRR. ã  A prime example of regionalization: Only the“presence” of muck is required in LRR U (SouthFL), as one goes North, 1 cm is required in LRRsP and T.   Accelerated Certification Training, Seasonal High Water Table Indicators –Hydric Indicators,October 20124  A Word About the Field Indicators ã Not all field indicators can be used in all areas. ã Florida has three “Land Resource Regions” (LRRs)  ã Make sure that the indicator you are attempting to use is allowed in the  particular LRR. ã Following slide has Florida’s LRRs. Florida Land Resource Regions Basic Terms of Importance ã  There are some basic terms used throughout that shouldbe explained. These terms will be defined here becausethey are used in the definitions of many of the indicators.  –  Depleted Matrix–Used in Indicators A11, A12, F3 andF12.  –  Gleyed Matrix–Used in Indicators A11, A12, S4 andF2.  –  Reduced Matrix–Used in Indicators A11, A12, S4, F2,F3 and F12.  –  70% masked by organic matter-Used in Indicators A5, A11, A12, S7, S8 and S9.
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