Showing papers in "Pedosphere in 2012"

TL;DR: In this article, a short review deals with soils as an important source of the greenhouse gas N2O, and some attempts for mitigating soil N2OC emissions, either by modifying agricultural practices or by managing soil microbial functioning taking into account the origin of the soil NOC emission variability, are reviewed.

TL;DR: The results indicated that plantation age and season affected soil microbial and enzymatic parameters significantly, and significant season × age interaction was observed for biomass C, basal respiration, dehydrogenase and BAA-protease.

TL;DR: In this paper, the spatial variability of magnetic properties and selected heavy metals and the effect of land use on their variability in the surface soils of the Isfahan region, Central Iran.

TL;DR: In this article, a review of soil contamination resulting from e-waste recycling activities, with a special focus on China, where many data have been collected for a decade, is presented, highlighting the urgent needs for 1) characterization of pollution status in all the countries where ewastes are recycled, 2) research on fate and toxicity of pollutant mixtures, and 3) combined techniques and strategies to remediate agricultural fields and hot spots of pollution.

TL;DR: In this paper, three main strategies, i.e., phytoexclusion, phytostabilization, and phyttoextraction, are proposed to establish cropping systems for production of edible and non-edible plants, and for extraction of elements for industrial use.

TL;DR: In this paper, the authors evaluate weathered spent mushroom substrate (SMS), made from spent Flammulina velutipes mushroom substrate, as a growing medium for nursery seedlings.

TL;DR: In this article, a tolerance index was calculated using plant dry mass data to select salt-tolerant and salt-sensitive types and find association between tolerance index and glycine betaine (GB) content.

TL;DR: In this paper, the authors investigated the method that can best predict electrical conductivity (EC) in dry soils using individual bands, a normalized difference salinity index (NDSI), partial least squares regression (PLSR), and bagging PLSR.

TL;DR: Using geostatistical and geographic information system (GIS) approaches, the spatial variability of some physical and chemical soil parameters was investigated under Mediterranean climatic condition in the Abruzzo region of central Italy, where soil erosion processes accelerated by human induced factors are the main causes of soil degradation associated with low SOM content.

TL;DR: In this article, the efficiencies of free and immobilized bacterial cultures of petroleum hydrocarbon degraders were evaluated and compared in the Yellow River Delta, and the maximum degradation rate in the immobilized systems reached 29.8% (SAD-M), significantly higher than the free cells at 20 d after inoculation.

TL;DR: In this paper, the authors measured five years after reclamation of a polluted soil affected by former mining activities and found that all soil biochemical properties as well as vegetation cover and richness were higher in treated soils than in the untreated contaminated plots.

TL;DR: It is essential to establish an adequate sampling protocol that can be applied rigorously at each sampling location and time, and makes recommendations regarding the within-site sampling of soil.

TL;DR: In this article, the authors evaluated changes in soil microbial biomass and activity in lands with different degradation levels in comparison with both land under native vegetation and land under restoration in Northeast Brazil.

TL;DR: In this article, the authors investigated chlordecone contamination of yam, sweet potato, turnip, and radish grown on a Ferralic Nitisol polluted by chlord-econe.

TL;DR: In this paper, a hydroponic experiment was performed to investigate whether and how Si detoxifies Fe 2+ toxicity in rice ( Oryza sativa L.) roots, which indicated that rice cultivar Tianyou 998 (TY998) showed greater sensitivity to Fe 2+, toxicity than rice cultivars Peizataifeng (PZTF).

TL;DR: Zhang et al. as discussed by the authors proposed a modified land ecological suitability evaluation (LESE) model to evaluate the suitability of tea crops in Zhejiang Province, where the grey relational analysis (GRA) was combined with the analytic hierarchy process (AHP) to address the uncertainties during the process of evaluating the traditional land ecology suitability, and a modified LESE model was built.

TL;DR: In this paper, the suitability of VNIR-DRS for predicting soil properties, including organic matter (OM), pH, and heavy metals (Cu, Pb, Zn, Cd, and Fe), using a total of 254 samples collected in soil profiles near a large copper smelter in China.

TL;DR: Application of PGPR from the root nodules of lentil grown in arid/semi-arid region of Punjab, Pakistan indicated that the isolated PGPR rhizobial strains can be best utilized as potential agents or biofertilizers for stimulating the growth and nutrient accumulation of lentils.

TL;DR: Wang et al. as mentioned in this paper used statistical and geostatistical methods to characterize and compare the spatial heterogeneity of organic carbon (SOC) in soils of Jiangsu Province, China, and investigate the factors that influence it, such as topography, soil type, and land use.

TL;DR: In this article, a rhizobox experiment was conducted to compare iron oxidation and changes of pH, redox potential (Eh), and fractions of zinc (Zn) and lead (Pb) in rhizosphere and non-rhizosphere soils of four emergent-rooted wetland plants (Echinodorus macrophyllus, Eleocharis geniculata, Hydrocotyle vulgaris and Veronica serpyllifolia) with different radial oxygen loss (ROL) from roots.

TL;DR: A soil survey was conducted in Zhangzhou City, an important agricultural region in south of the Fujian Province, China as discussed by the authors, where 93 surface soil samples were collected in the paddy fields, vegetable lands, orchards and tea plantations from Zhangzhou city.

TL;DR: In this article, three urban development scenarios, historical trend (HT), forest protection (FP), and growth restriction (GR) were designed and transplanted into the SLEUTH model through the parameter self-modification method.

TL;DR: In this article, a field experiment was conducted to investigate dynamics of N 2 O emissions from rice-wheat fields from December 2006 to June 2007 and the relationship of soil and plant parameters with N 2O emissions.

TL;DR: In this article, the optimal amount of nitrogen (N) fertilizer for achieving a sustainable rice production at the Taihu Lake region of China, two-year on-farm field experiments were performed at four sites using various N application rates.

TL;DR: Root proliferation in nutrient patches contributed more to maize growth and nutrient uptake at the early than late stages, and was related to the higher proportion of root length in the localized nutrient-enriched patch.

TL;DR: In this paper, a pot experiment was carried out to assess the effect of application of amendments, i.e., swine manure, salicylic acid (SA) and potassium chloride (KCl), on the growth, uptake and translocation of ornamental sunflower (Helianthus annuus L.) grown on a contaminated soil.

TL;DR: The phylogenetic diversity of phosphate solubilizing bacteria distributed in P-rich soils in the Dianchi Lake drainage area of China was characterized, and the tricalcium phosphate (TCP) solubILizing activities of isolated PSB were determined.

TL;DR: In this article, a new prototype implement developed for applying poultry litter in subsurface bands in the soil was used in a field site at the Sand Mountain Research and Extension Center in the Appalachian Plateau region of northeast Alabama.

TL;DR: The results suggested that the organ-specific expression pattern of OsAMT could be regulated by N requirement and external N status.

TL;DR: It is suggested that certain AMF communities could substantially improve the quality of degraded soil and growth of cucumber seedlings in a degraded soil that had been used for continuous cucumber monoculture in a greenhouse for 15 years.