A5070902049- Soil Carbon and Nitrogen Dynamics
- Clay minerals and soil interactions
- Soil and Water Nutrient Dynamics
- Soil and Unsaturated Flow
- Fire effects on ecosystems
- Heavy metals in environment
- Soil erosion and sediment transport
- Peatlands and Wetlands Ecology
- Phosphorus and nutrient management
- Coastal wetland ecosystem dynamics
- Groundwater and Isotope Geochemistry
- Bauxite Residue and Utilization
- Coal and Its By-products
- Soil Management and Crop Yield
- Adsorption and biosorption for pollutant removal
- Isotope Analysis in Ecology
- Sugarcane Cultivation and Processing
- Aeolian processes and effects
- Rangeland and Wildlife Management
- Hydrology and Watershed Management Studies
- Hydrology and Sediment Transport Processes
- Plant Water Relations and Carbon Dynamics
- Heavy Metals in Plants
- Gut microbiota and health
- Marine animal studies overview
Griffith University
2015-2025
Queensland Department of Environment and Science
2015
University of Guilan
2011-2014
This paper critically reviewed the current knowledge and challenges of rice husk biochar (RHB) production its effects on soil properties, plant growth, immobilization heavy metals, reduction nutrient leaching mitigation greenhouse gas emissions. The characteristics RHBs produced at various pyrolysis temperatures were discussed compared to biochars derived from other agro- industrial wastes. higher show lower hydrogen/carbon ratio, which suggests presence aromatic carbon compounds. increase...
Abstract Biochar application can influence soil nitrogen (N) cycle through biological and abiotic processes. However, studies on comprehensive examination of the effects biochar microbially mediated N‐cycling processes (N mineralization, nitrification, denitrification, fixation) N fate (i.e., plant uptake, 2 O emission, leaching) are warranted. Therefore, aim this study was to examine transformation, microbial functional gene abundance, enzyme activity, uptake. To achieve objective study, a...
Decadal-scale increases in fire frequency have the potential to deplete ecosystems of essential nutrients and consequently impede nutrient-limited biological processes via stoichiometric imbalance. Decomposition, a fundamental ecosystem function strong driver future occurrence, is highly sensitive nutrient availability is, therefore, particularly important this context. Here we show that 40 yr quadrennial (4yB) biennial (2yB) prescribed burning result severely P- N-depleted litter...
ABSTRACT Climate change threatens long‐term soil health because of increased severity and frequency drought periods. Applying biochar to soils before a can increase non‐biochar carbon (C) water storage over the long term sustain crop yield. However, on‐farm benefit buried solid applied liquid at low rates remains uncertain. This study examined effects two novel biochar‐based amendments on C, The included reactive barrier (RB) made by layering wood‐based biochar, straw mulch cow manure into...
Abstract River run-off has long been regarded as the largest source of organic-rich suspended particulate matter (SPM) in Great Barrier Reef (GBR), contributing to high turbidity, pollutant exposure and increasing vulnerability coral reef climate change. However, terrestrial versus marine origin SPM GBR is uncertain. Here we provide multiple lines evidence ( 13 C NMR, isotopic genetic fingerprints) unravel that a considerable proportion terrestrially-derived degraded riverine estuarine...
Abstract Biochar–bioenergy coproduction from biomass pyrolysis has the potential to contribute climate change mitigation. Biochar produced at various temperatures (<600°C) been widely studied. However, effect of biochars, high temperature (≥600°C), on soil nitrogen (N) dynamics and nitrous oxide (N 2 O) emission is largely unknown. A pot trial was performed examine (600, 700, 850 950°C) woody biochars N dynamics, microbial gene abundance O emissions with (+N) without (−N) fertilization an...
Soil compaction combined with water deficit may cause a significant decrease in microbial functions. Two texture-contrast sugarcane soils were exposed to the stresses of and drought, responses investigated going into stress (phase I) as well their response coming out II). We artificially applied gradient bulk densities (0.9–1.5 g cm−3) water-filled pore space (WFPS, 21–100%) simulate drought conditions. PCA results clearly demonstrated separation impacts soil types moisture treatments....
Abstract. Coastal wetlands are essential for regulating the global carbon budget through soil sequestration and greenhouse gas (GHG – CO2, CH4, N2O) fluxes. The conversion of coastal to agricultural land alters these fluxes' magnitude direction (uptake/release). However, extent drivers change GHG fluxes still unknown many tropical regions. We measured from three natural mangroves, salt marsh, freshwater tidal forests two alternative uses sugarcane farming pastures cattle grazing (ponded dry...
The distribution of inorganic P fractions and their relationships with soil properties was studied in 17 slightly acidic to alkaline soils (pH range 5.37 7.61).The were selected from agricultural fields the north Iran.Inorganic fractionation included successive extraction NaOH (NaOH-P), citrate-bicarbonate (CB-P), citrate two times (C1-and C2-P), Citrate-ascorbate (CAs-P), citrate-dithionite-bicarbonate (CBD-P), sodium-acetate buffer (NaOAc-P) HCl (HCl-P).Results showed that abundance order...
Context Land degradation poses a substantial threat to both the sustainable environment and human health. Efforts towards rehabilitation remediation often require addition of soil amendments careful selection plant species. Aims We assessed effect recycled organic on improvement physicochemical properties performance native species in an Australian degraded soil. Methods A glasshouse pot experiment investigated effects compost (CO), biochar (BC), compost-biochar (COBC) mixture three...