Folders: ROOT > ScienceBase Catalog > LC MAP - Landscape Conservation Management and Analysis Portal > North Atlantic Landscape Conservation Cooperative > Products > Designing Sustainable Landscapes, University of Massachusetts > Soil ( Show direct descendants )
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ROOT _ScienceBase Catalog __LC MAP - Landscape Conservation Management and Analysis Portal ___North Atlantic Landscape Conservation Cooperative ____Products _____Designing Sustainable Landscapes, University of Massachusetts ______Soil Filters
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Soil pH measures acidity, which affects nutrient uptake by plants. The most common soil laboratory measurement of pH is the 1:1 water method. A crushed soil sample is mixed with an equal amount of water, and a measurement is made of the suspension. For each soil layer, this attribute is actually recorded as three separate values in the database. A low value and a high value indicate the range of this attribute for the soil component. A "representative" value indicates the expected value of this attribute for the component. For this soil property, only the representative value is used. A weighted average aggregation method was used to aggregate soil components within a 0-30 cm depth range.The dataset was derived...
Categories: Data;
Types: ArcGIS REST Map Service,
ArcGIS Service Definition,
Downloadable,
Map Service;
Tags: DSL,
Data,
LCC Network Science Catalog,
North Atlantic Landscape Conservation Cooperative Data.gov,
Soil,
Soil depth (cm) affects communities primarily because shallow soils (usually on steep slopes or ridgetops) limit deep-rooted plants. A "restrictive layer" is a nearly continuous layer that has one or more physical, chemical, or thermal properties that significantly impede the movement of water and air through the soil or that restrict roots or otherwise provide an unfavorable root environment. if no restrictive layer is described in a map unit, it is represented by the ">200' depth class, This attribute is actually recorded as three separate values in the database. A low value and a high value indicate the range of this attribute for the soil component. A "representative" value indicates the expected value of this...
Available water supply (AWS) is the total volume of water (in centimeters) that should be available to plants when the soil, inclusive of rock fragments, is at field capacity. AWS is calculated as the available water capacity times the thickness of each soil horizon to a specified depth (25 cm). The composition of the each component in the map unit is recorded as a percentage. A composition of 60 indicates that the component typically makes an approcimately 60 percent of the the map unit. A weighted average aggregation method of all component values was computed, with percent composition as the weighing factor. The dataset was derived from the U.S. Department of Agriculture, Natural Resources Conservation Service...
Categories: Data;
Types: ArcGIS REST Map Service,
ArcGIS Service Definition,
Downloadable,
Map Service;
Tags: AWS,
AWS,
DSL,
Data,
LCC Network Science Catalog,
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