Results 41 to 50 of about 134,306 (354)

Topsoil Organic Carbon Content [PDF]

open access: yes, 2016
Soil organic carbon (SOC) is a key soil component. SOC stores large amounts of carbon and it also affects water fluxes as well as the availability of nutrients. Soil water fluxes are impacted by SOC directly due to its effect upon soil hydraulic parameters.
Klar, Christian W.   +2 more
openaire   +1 more source

Potential of VIS-NIR spectroscopy to characterize and discriminate topsoils of different soil types in the Triffa plain (Morocco)

open access: yesSoil Science Annual, 2019
This study aims to identify the influence of soil organic matter (OM) content and calcium carbonates (CaCO3) on soil reflectance and select the optimum spectral bands for discriminating between topsoils of different soil types situated in the irrigated ...
Lazaar Ayoub   +8 more
doaj   +1 more source

Effect of long-term fertilisation of Calcisols on organic carbon sequestration in marine climate in Estonia

open access: yesActa Agriculturae Scandinavica. Section B, Soil and Plant Science, 2023
The aim of this work was to investigate the effect of long-term (45-year) fertilization of the crop rotation on soil organic carbon concentration (SOC%) changes in different periods of the experiment and its trend under conditions of more northerly ...
V. Loide
doaj   +1 more source

Effects of acid rain on competitive releases of Cd, Cu, and Zn from two natural soils and two contaminated soils in hunan, China [PDF]

open access: yes, 2007
Leaching experiments of rebuilt soil columns with two simulated acid rain solutions (pH 4.6– 3.8) were conducted for two natural soils and two artificial contaminated soils from Hunan, southcentralChina, to study effects of acid rain on competitive ...
Guo, Zhao-hui   +4 more
core   +3 more sources

The impacts of no-tillage and conventional tillage on some hydraulic characteristics of topsoil in the mediterranean climate [PDF]

open access: yes, 2007
Soil tillage is the guiding component of soil management and consequently has far-reaching implication for agroecosystems. Understanding structures and functions of soil under conventional tillage and no-tillage is an essential requirement for any future
Forest, Francis   +8 more
core  

Bioenergy Cropping Reduces the Spatiotemporal Scaling of Soil Bacterial Biodiversity

open access: yesAdvanced Science, EarlyView.
Consistent with patterns observed in plant and animal communities, soil bacterial communities exhibit significant species–time–area and phylogenetic–time–area relationships independent of nested structure. Bioenergy cropping significantly reduces the spatiotemporal scaling rates, particularly in sandy loam soils.
Zhencheng Ye   +19 more
wiley   +1 more source

Heavy metals content in sweet potato (Ipomoea batatas L.) grown on soil contaminated by gold mine tailings with composted cow manure amendment

open access: yesJournal of Degraded and Mining Lands Management, 2023
Artisanal gold miners usually dispose of gold mine tailings in storage ponds or agricultural land used for farming. However, the gold mine tailings still contain heavy metals such as cadmium, copper, lead, and zinc and can lead to bioaccumulation in food
Rhazista Noviardi   +3 more
doaj   +1 more source

Natural Variation of NAR5 Determines Nitrogenase Activity and the Yield in Soybean

open access: yesAdvanced Science, EarlyView.
This study identified NAR5, a gene encoding a subtilisin‐like protease, that regulates nitrogenase activity in soybean nodules. Overexpressing NAR5 delayed nodule senescence, enhancing nitrogenase activity, yield, and low‐nitrogen tolerance. The elite haplotype NAR5HapI‐1 linked to superior nitrogenase activity and greater seed weight has been ...
Chao Ma   +11 more
wiley   +1 more source

Forest Restoration Evaluation Through Indicators in Areas of Bauxite Mining

open access: yesFloresta e Ambiente, 2019
The state of Pará ranks second in Brazilian mineral production, where bauxite accounts for 84% of total mineral extraction, with negative impacts on the environment as a result.
Sabrina Santos Ribeiro   +4 more
doaj   +1 more source

Geostatistical Modelling of Soil Spatial Variability by Fusing Drone-Based Multispectral Data, Ground-Based Hyperspectral and Sample Data with Change of Support

open access: yesRemote Sensing, 2022
Traditional soil characterization methods are time consuming, laborious and invasive and do not allow for long-term repeatability of measurements. The overall aim of this paper was to assess and model spatial variability of the soil in an olive grove in ...
Antonella Belmonte   +3 more
doaj   +1 more source

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