Results 51 to 60 of about 2,661 (199)

Soil bacterial communities of a calcium-supplemented and a reference watershed at the Hubbard Brook Experimental Forest (HBEF), New Hampshire, USA [PDF]

open access: yes, 2011
Soil Ca depletion because of acidic deposition-related soil chemistry changes has led to the decline of forest productivity and carbon sequestration in the northeastern USA. In 1999, acidic watershed (WS) 1 at the Hubbard Brook Experimental Forest (HBEF),
Brodie, Eoin L.   +6 more
core   +2 more sources

Critical roles of short‐range‐order minerals in shaping soil water retention curves in volcanic regions

open access: yesVadose Zone Journal, Volume 24, Issue 5, September/October 2025.
Abstract Predicting water retention is difficult for highly aggregated volcanic soils (Andisols) with heterogeneous pore size distribution. This paper aimed to examine how andic materials influence soil water retention based on soil composition. We compiled the data of water retention in the soils from literature with physicochemical properties and ...
Kazumichi Fujii   +4 more
wiley   +1 more source

The Characteristic of Soil Developed From Felsic Sediments in West Kalimantan Province and Its Implication to Land Manageme [PDF]

open access: yes, 2007
Reconnaisance soil survey at 1:250.000 scale in West Kalimantan Province has been done covering 5.5 billion hectare. Result show that parent material governs formed soil properties.
SUHARTA, N. (NATA)
core  

Differential water and imidacloprid transport under unsaturated Florida citrus field conditions

open access: yesVadose Zone Journal, Volume 24, Issue 5, September/October 2025.
Abstract Citrus production in Florida declined in the past 20 years by >72% due to citrus greening disease which is vectored by Asian citrus psyllid (ACP). Extensive use of pesticides such as imidacloprid (IDP) to manage ACP raises concerns of environmental pollution to shallow groundwater in citrus orchards dominated by sandy soils.
Qudus O. Uthman   +3 more
wiley   +1 more source

Hydraulic conductivity and soil-sewage sludge interactions

open access: yesRevista Brasileira de Ciência do Solo, 2011
One of the main problems faced by humanity is pollution caused by residues resulting from the production and use of goods, e.g, sewage sludge. Among the various alternatives for its disposal, the agricultural use seems promising.
Silvio Romero de Melo Ferreira   +5 more
doaj   +1 more source

The Carbon Budget of Land Conversion: Sugarcane Expansion and Implications for a Sustainable Bioenergy Landscape in Southeastern United States

open access: yesGCB Bioenergy, Volume 17, Issue 7, July 2025.
Sugarcane is poised to become a key bioenergy crop in the Southeastern United States, where its expansion may replace pasturelands. Our findings show that such land‐use transitions may incur significant carbon losses—beyond harvest or fire removals—led by rapid mineralization of legacy biomass and soil carbon upon conversion.
E. Blanc‐Betes   +5 more
wiley   +1 more source

Spatial Decoupling of Biological and Geochemical Phosphorus Cycling in Podzolized Soils

open access: yesSoil Systems
Phosphorus (P) is essential to life yet constrained by finite reserves, heterogeneous distribution, and strong chemical binding to soil minerals. Pedogenesis progressively alters the availability of P: in ‘young’ soils, P associated with Ca and Mg is ...
Daniel F. Petticord   +4 more
doaj   +1 more source

Comparative measurements of carbon dioxide fluxes from two nearby towers in a central Amazonian rainforest: the Manaus LBA site [PDF]

open access: yes, 2002
Forests around Manaus have staged the oldest and the longest forest-atmosphere CO2 exchange studies made anywhere in the Amazon. Since July 1999 the exchange of CO2, water, and energy, as well as weather variables, have been measured almost continuously ...
Araújo, A.C.   +11 more
core   +2 more sources

Phosphate elution from anion‐exchange membranes in soil analysis

open access: yesAgricultural &Environmental Letters, Volume 10, Issue 1, June 2025.
Abstract Resin‐extractable phosphate (PO4‐P) is a widespread sink‐based measure of soil bioavailable phosphorus (P) used in biogeochemistry and soil fertility. However, acid elution of P may hydrolyze organic P and thus compromise measurement of PO4‐P. We evaluated sodium bicarbonate (NaHCO3) as an alternative to sulfuric acid (H2SO4) for PO4‐P elution.
Suwei Xu, Andrew J. Margenot
wiley   +1 more source

Introduction to the landscapes and soils of the Hamilton Basin [PDF]

open access: yes, 2010
The Hamilton Basin area is characterised by four main landscape units or landforms as depicted in the block diagrams below (McCraw, 1967, 2002; Bruce, 1979; Selby and Lowe, 1992), and these provide a soil-landscape model to predict the soil ...
Lowe, David J.
core   +1 more source

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