共查询到20条相似文献，搜索用时 109 毫秒
1.
Compost application affects metal uptake in plants grown in urban garden soils and potential human health risk 总被引：1，自引：1，他引：0
Hollydawn Murray Trevor A. Pinchin Sheila M. Macfie 《Journal of Soils and Sediments》2011,11(5):815-829
Purpose
This study explores the effect of varying organic matter content on the potential human health risk of consuming vegetables grown in urban garden soils. 相似文献2.
Purpose
Accumulated soil phosphorus (P) in agricultural lands due to long-term organic manure and mineral phosphate fertilizer input is considered one of the main non-point pollution sources to surrounding surface water bodies. A chronosequence of soils is a potent instrument for pedological investigation and allows assessment of the effect of duration of agricultural cultivation on the environmental risk to water bodies of P loss from soil. 相似文献3.
Purpose
Chlorimuron-ethyl is a sulfonylurea herbicide widely used to control many annual broadleaf weeds, and the residue for a long period posed a heavy hazard to rotational crops or vegetables. Knowledge about effect of soil pH and organic matter on desorption processes of chlorimuron-ethyl remains obscure. In this study, desorption behavior of chlorimuron-ethyl as a function of soil pH and organic matter was investigated. 相似文献4.
Sang-Sun Lim Kwang-Seung Lee Sun-Il Lee Dong-Suk Lee Jin-Hyeob Kwak Xiying Hao Hee-Myoung Ro Woo-Jung Choi 《Journal of Soils and Sediments》2012,12(3):312-322
Purpose
Since substrate quality can influence the C mineralization pattern of compost in soils, proper selection of compost is important in increasing soil organic carbon (SOC) levels. This study investigated the effect of substrate quality of livestock manure composts on compost C mineralization and retention in soils. 相似文献5.
Paula Madejón Pedro Soler-Rovira Lisa Ciadamidaro Francisco Cabrera Engracia Madejón 《Journal of Soils and Sediments》2012,12(5):663-673
Purpose
The aim of this work was to study the effect of ‘trace element-rich litter’ on the properties of two reforested polluted soils of different pH values (acidic and neutral) in terms of (1) availability of trace elements and (2) chemical and biochemical properties of the soil at different pH. We hypothesized that this litter would affect several parameters related to the organic matter cycle in soils, depending on initial soil pH. 相似文献6.
Phytoremediation for soils contaminated by phenanthrene and pyrene with multiple plant species 总被引：1，自引：0，他引：1
Purpose
The remediation of soil polluted by polycyclic aromatic hydrocarbons (PAHs) is of great importance due to the persistence and carcinogenic properties of PAHs. Phytoremediation has been regarded as a promising alternative among suggested approaches. For the establishment of highly effective remediation method and better understanding of the remediation mechanisms by plants, the potentials of three plant species and their planting patterns on the remediation efficacy were studied by pot experiments. 相似文献7.
Binoy Sarkar Ravi Naidu Mohammad Mahmudur Rahman Mallavarapu Megharaj Yunfei Xi 《Journal of Soils and Sediments》2012,12(5):704-712
Purpose
Naturally occurring layer silicate clay minerals can be value added by modifying their surface properties to enhance their efficacy in the remediation of environmental contaminants. Silicate clay minerals modified by the introduction of organic molecules into the mineral structure are known as organoclays and show much promise for environmental remediation applications. The present study assesses the extent of decrease in bioavailable and bioaccessible arsenic (As) via enhanced adsorption by soil treated with organoclays. 相似文献8.
Jurate Virkutyte Vida Vičkačkaite Audrius Padarauskas 《Journal of Soils and Sediments》2010,10(3):526-536
Purpose
Sono-Fenton-like process was tested to degrade naphthalene in spiked soil utilizing mineral iron as a catalyst to generate radical species as well as to evaluate the efficiency of the proposed method and to optimize the treatment conditions. The study assessed the relationships between the most significant process variables (initial naphthalene and hydrogen peroxide concentrations) and their response on naphthalene degradation efficiency using central composite design at various ultrasound irradiation intensities. The electrical energy per order was also calculated to illustrate economic benefits of this “hybrid” technique. 相似文献9.
Background
Evidence of trivalent manganese (Mn3+) in the aqueous phase of soils is unknown so far although this strong oxidant has large environmental implications.Aims
We aimed to modify a spectrophotometric protocol (porphyrin method) and to discriminate between Mn2+ and Mn3+ in the aqueous phase of forest soils based on kinetic modeling.Methods
We investigated manganese speciation in 12 forest floor solutions and 41 soil solutions from an acidic forest site by adjusting pH and correcting for absorbance.Results
The solutions showed broad ranges in pH (3.4−6.3), dissolved organic carbon (DOC, 1.78−77.1 mg C L−1), and total Mn (MnT, 23.9−908 µg L−1). For acidic solutions, a pH-buffer was added to increase the pH of the solutions to 7.5−8.0, and background absorption was corrected for colored solutions, that is, solutions high in DOC. This was done to accelerate the reaction kinetics and avoid overestimation of MnT concentrations. After the pH and color adjustments, the comparison of MnT concentrations between the porphyrin method and optical emission spectrometry showed good agreement. Trivalent Mn, which is stabilized by organic ligands, constitutes significant proportions in both forest floor solutions (10−87%) and soil solutions (0.5−74%).Conclusions
The dissolved Mn3+ is present in acidic forest soils. Thus, we revise the paradigm that this species is not stable and encourage to apply the revised method to other soils. 相似文献10.
Spatial distribution of sediments and transfer properties in soils in a stormwater infiltration basin 总被引：3，自引：2，他引：1
Patrice Cannavo Laure Vidal-Beaudet Béatrice Béchet Laurent Lassabatère Sylvain Charpentier 《Journal of Soils and Sediments》2010,10(8):1499-1509
Purpose
The aim of our study was to characterise the heterogeneity of sediment distribution in a stormwater retention/infiltration basin (Pont de Cheviré, Nantes, France) and to determine the impact of this distribution on water transfer properties in the soil. 相似文献11.
Lorenzo Giusti 《Journal of Soils and Sediments》2011,11(8):1385-1398
Purpose
UK local authorities are required by environmental regulations to keep a public register of contaminated land. In many towns and cities, there is growing concern of allotment holders about the quality of their allotment soils. Limited information on soil chemistry is available for the southwest of England. This work was carried out to assess whether any allotment and park soil in Bristol could be defined as “contaminated”. 相似文献12.
Darines Britzke Leandro Souza da Silva Diovane Freire Moterle Danilo dos Santos Rheinheimer Edson Campanhola Bortoluzzi 《Journal of Soils and Sediments》2012,12(2):185-197
Purpose
The dynamics and availability of potassium (K) in soils depend on many factors, including the mineralogy of fractions and the soil geochemical conditions. The objective of this work is to quantify K in distinct lowland soil compartments in the south of Brazil, relating them to particle size fractions and mineralogical constitution. 相似文献13.
María L. Iglesias Rosa Devesa-Rey Rogelio Pérez-Moreira Francisco Díaz-Fierros María T. Barral 《Journal of Soils and Sediments》2011,11(7):1125-1134
Purpose
The study of phosphorus (P) transfer from soils to rivers is a subject of interest as there is a clear relation between land use and water quality. P transfer in the soil/sediment system was evaluated by comparing the concentrations of total (PT) and bioavailable P (PA). 相似文献14.
Soil type determines the abundance and community structure of ammonia-oxidizing bacteria and archaea in flooded paddy soils 总被引：2，自引：2，他引：0
Xin Chen Li-Mei Zhang Ju-Pei Shen Zhihong Xu Ji-Zheng He 《Journal of Soils and Sediments》2010,10(8):1510-1516
Purpose
Ammonia oxidation plays an important role in global nitrogen cycle. However, little information is available on ammonia oxidizers in paddy soils. This study aimed to understand the controlling factors of ammonia oxidizers in the paddy soils. 相似文献15.
Na Ding Tahir Hayat Jie Wang Haizhen Wang Xingmei Liu Jianming Xu 《Journal of Soils and Sediments》2011,11(8):1355-1362
Purpose
The purpose of the present study was to investigate the composition and structure of microbial communities in rhizosphere soils in response to the presence of Aroclor 1242 with low (8 mg kg−1 soil) and high (16 mg kg−1 soil) concentrations in the hope to provide more information on potential dissipation of polychlorinated biphenyls (PCBs) at contaminated sites. 相似文献16.
Tida Ge Hongzhao Yuan Paula Roberts Davey L. Jones Hongling Qin Chengli Tong Danfeng Huang 《Journal of Soils and Sediments》2012,12(3):323-333
Purpose
Free amino acids (FAAs) and peptides, and dissolved organic nitrogen (DON) comprise key pools in terrestrial soil carbon (C) and nitrogen (N) cycles. A comparative study of organic and conventional arable farming systems was conducted in Shanghai, China to determine the influence of management practices on characterization of AA and peptide dynamics. 相似文献17.
Speciation of heavy metals in garden soils: evidences from selective and sequential chemical leaching 总被引：1，自引：1，他引：0
Zhongqi Cheng Leda Lee Sara Dayan Michael Grinshtein Richard Shaw 《Journal of Soils and Sediments》2011,11(4):628-638
Purpose
Gardening (especially food growing) in urban areas is becoming popular, but urban soils are often very contaminated for historical reasons. There is lack of sufficient information as to the bioavailability of soil heavy metals to plants and human in urban environments. This study examines the relative leachability of Cr, Ni, As, Cd, Zn, and Pb for soils with varying characteristics. The speciation and mobility of these metals can be qualitatively inferred from the leaching experiments. The goal is to use the data to shed some light on their bioavailability to plant and human, as well as the basis for soil remediation. 相似文献18.
Katja Heister Carmen H?schen Geertje J. Pronk Carsten W. Mueller Ingrid K?gel-Knabner 《Journal of Soils and Sediments》2012,12(1):35-47
Purpose
Secondary ion mass spectrometry at the nanoscale (NanoSIMS) is a new and promising technique in soil science, as it allows us to explore the elemental and isotopic composition of a solid sample with high sensitivity at a submicron scale. In this study, we demonstrate that it is possible to differentiate the major components of soils by this technique. 相似文献19.
Sorption of the herbicide terbuthylazine in two New Zealand forest soils amended with biosolids and biochars 总被引：2，自引：0，他引：2
Hailong Wang Kunde Lin Zhenan Hou Brian Richardson Jay Gan 《Journal of Soils and Sediments》2010,10(2):283-289
Background, aim, and scope
Terbuthylazine is one of the most commonly used herbicides for vegetation management in forest plantations in New Zealand. Knowledge about the sorption of terbuthylazine on forest soils, especially the influence of coexisting organic amendments, remains obscure. In this study, we evaluated the effects of biosolids and biochars on the sorption of terbuthylazine to forest soils. 相似文献20.
Availability of polycyclic aromatic hydrocarbons in aging soils 总被引：1，自引：0，他引：1
Wanting Ling Yuechun Zeng Yanzheng Gao Hongjiao Dang Xuezhu Zhu 《Journal of Soils and Sediments》2010,10(5):799-807