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Effects of Water Holding Capacity and Precipitation on Above Ground Net Primary Production


Abstract Aboveground net primary production (ANPP) is an important ecosystem process that, in drylands, is most frequently limited by water availability. Water availability for plants is in part controlled by the water holding capacity of soils. Available water holding capacity (AWHC) of soils is strongly influenced by soil texture and depth. This study drew upon localized rain gauge data and four data-sets of cover-line and biomass data to estimate ANPP and to determine annual precipitation (PPT). I measured soil depth to caliche and texture by layer of 112 plots across the four landscape units for which estimation of ANPP were available. A pedotransfer function was used to estimate AWHC from soil depth increments to depth of caliche measurements a... (more)
Created Date 2019
Contributor Wagner, Svenja K (Author) / Sala, Osvaldo E (Advisor) / Cease, Arianne (Committee member) / Hall, Sharon (Committee member) / Peters, Debra (Committee member) / Arizona State University (Publisher)
Subject Ecology / Sustainability / Soil sciences / above ground net primary production / caliche / sandy soil / soil / soil depth / water holding capacity
Type Masters Thesis
Extent 78 pages
Language English
Copyright
Note Masters Thesis Sustainability 2019
Collaborating Institutions Graduate College / ASU Library
Additional Formats MODS / OAI Dublin Core / RIS


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Description Dissertation/Thesis