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Hyper Humus / Paulinskill WMA
New Jersey
I was lucky to get its eye in focus while shooting at F/4, and since the butterfly was flitting around fast I had to go with an ISO of 800 too.
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Plinthite (Gr. plinthos, brick) is an iron-rich, humus-poor mixture of clay with quartz and other highly weathered minerals. It commonly occurs as reddish redox concentrations in a layer that has a polygonal (irregular), platy (lenticular), or reticulate (blocky) pattern. Plinthite irreversibly hardens upon exposure to repeated wetting and drying, especially if exposed to heat from the sun. Other morphologically similar iron-rich materials that do not progressively harden upon repeated wetting and drying are not considered plinthite. The horizon in which plinthite occurs commonly has 2.5 percent (by mass) or more citrate dithionite extractable iron in the fine-earth fraction and a ratio between acid oxalate extractable Fe and citrate-dithionite extractable Fe of less than 0.10.
For more information about describing soils, visit:
www.nrcs.usda.gov/resources/guides-and-instructions/field...
For additional information about soil classification using Soil Taxonomy, visit:
www.nrcs.usda.gov/resources/guides-and-instructions/keys-...
For more information about a plinthic horizon, visit;
www.researchgate.net/publication/242649722_Rationale_for_...
or:
www.sciencedirect.com/science/article/pii/S00167061220043...
For more information about Slake Tests, visit:
www.nrcs.usda.gov/sites/default/files/2023-01/SSIR51.pdf
Soil Survey Field and Laboratory Methods Manual; Soil Survey Investigations Report No. 51, Version 2; Issued 2014 (pp. 148-157)
3.7 Soil Stability, Dispersion, and Slaking
3.7.5 Slaking (Disaggregation) for Identification and Semiquantification of Cemented Materials
John Kelley and Michael A. Wilson, United States Department of Agriculture, Natural Resources Conservation
Service, Soil Survey Staff
Viaje al pais de Iran, visita a los campos de lumbricultura implementados por la empresa Worms Argentina.
Afkomst uit het Biologische Receptenboek 2011: www.broedersgezondheidswinkel.nl/index.asp?type=61&Pa...
HUMUS PARK
12/17 maggio 08
PN-parco del seminario
Ieri le prime prove....verso fine settimana sarà possibile vedere le installazioni completate!!!
(Pic. by GuAzZa....nàvoltatanto)
Viaje al pais de Iran, visita a los campos de lumbricultura implementados por la empresa Worms Argentina.
Durante el segundo conceyu d'Abamia, ante el estado del suelo que rodea los el tejo viejo del campo de la iglesia, los amigos del Texu abonaron el terreno con humus de lombriz