Urban Soil as a Source and Sink

2022 ◽  
pp. 293-317
Author(s):  
Andrew W. Rate
Keyword(s):  
Urban Soil ◽  
Source And Sink

Coordination between Source and Sink in Super Early and Late Rice

2009 ◽  
Vol 35 (9) ◽  
pp. 1744-1748 ◽  
Author(s):  
Xiao-Yue YUAN ◽  
Xiao-Hua PAN ◽  
Qing-Hua SHI ◽  
Jian-Fu WU ◽  
Ying-Xue QI
Keyword(s):  
Late Rice ◽  
Source And Sink

scholarly journals Spatial Distribution and Evaluation of Arsenic and Zinc Content in the Soil of a Karst Landscape

2021 ◽  
Vol 13 (12) ◽  
pp. 6976
Author(s):  
Dimitrios E. Alexakis ◽  
George D. Bathrellos ◽  
Hariklia D. Skilodimou ◽  
Dimitra E. Gamvroula
Keyword(s):  
Land Use ◽  
Spatial Distribution ◽  
Land Use Planning ◽  
Urban Soil ◽  
Agricultural Soil ◽  
Agricultural Land ◽  
Land Evaluation ◽  
Agricultural Activity ◽  
North West ◽  
Total Study Area

Karst features such as polje are highly vulnerable to natural and anthropogenic pollution. The main objectives of this study were to investigate the soil quality in the Ioannina polje (north-west Greece) concerning arsenic (As) and zinc (Zn), and delineate their origin as well as compare the As and Zn content in soil with criteria recorded in the literature. For this purpose, the geomorphological settings, the land use, and the soil physicochemical properties were mapped and evaluated, including soil texture and concentrations of aqua-regia extractable As and Zn. The concentration of elements was spatially correlated with the land use and the geology of the study area, while screening values were applied to assess land suitability. The results reveal that 72% of the total study area has a very gentle slope. This relief favors urban and agricultural activity. Thus, the urban and agricultural land used cover 92% of the total area. The spatial distribution for As and Zn in the soil of the study area is located on very gentle slopes and is strongly correlated with the geological parent materials and human-induced contamination sources. Arsenic and Zn can be considered enriched in the soil of the area studied. The median topsoil contents (in mg kg−1) for As (agricultural soil 16.0; urban soil 17.8) and Zn (agricultural soil 92.0; urban soil 95.0) are higher compared to the corresponding median values of European topsoils. Land evaluation suitability concerning criteria given from the literature is discussed. The proposed work may be helpful in the project of land use planning and the protection of the natural environment.

Intact and managed peatland soils as a source and sink of GHGs from 1850 to 2100

2019 ◽  
Vol 9 (12) ◽  
pp. 945-947 ◽  
Author(s):  
Jens Leifeld ◽  
Chloé Wüst-Galley ◽  
Susan Page
Keyword(s):  
Source And Sink

scholarly journals C and N urban soil budget and its spatial differentiation in comparison with natural areas in the Wroclaw region of Poland

2018 ◽  
Vol 45 ◽  
pp. 00085
Author(s):  
Izabela Sówka ◽  
Yaroslav Bezyk ◽  
Maxim Dorodnikov
Keyword(s):  
Urban Soil ◽  
Spatial Differentiation ◽  
Clay Content ◽  
Dry Mass ◽  
Microbial Biomass C ◽  
Natural Areas ◽  
Soil C ◽  
Soil C And N ◽  
C And N ◽  
Natural Grassland

An assessment of C and N balance in urban soil compared to the natural environment was carried out to evaluate the influence of biological processes along with human-induced forcing. Soil C and N stocks were quantified on the samples (n=18) collected at 5 - 10 cm depth from dominated green areas and arable lands in the city of Wroclaw (Poland) and the relatively natural grassland located ca. 36 km south-west. Higher soil carbon and nitrogen levels (C/N ratio = 11.8) and greater microbial biomass C and N values (MBC = 95.3, MBN = 14.4 mg N kg-1) were measured in natural grassland compared with the citywide lawn sites (C/N ratio = 15.17, MBC = 84.3 mg C kg-1, MBN = 11.9 mg N kg-1), respectively. In contrast to the natural areas, the higher C and N concentration was measured in urban grass dominated soils (C = 2.7 % and N = 0.18 % of dry mass), which can be explained mainly due to the high soil bulk density and water holding capacity (13.8 % clay content). The limited availability of soil C and N content was seen under the arable soil (C = 1.23 %, N = 0.13 %) than in the studied grasslands. In fact, the significantly increased C/N ratios in urban grasslands are largely associated with land conversion and demonstrate that urban soils have the potential to be an important reservoir of C.

Research Status and Tendency of Urban Soil Pollution

2011 ◽  
Vol 414 ◽  
pp. 226-231
Author(s):  
Huai Li Zheng ◽  
Zhen Zhen Jiang ◽  
Wei Fan ◽  
Jun Ren Zhu ◽  
Zhi Zhang ◽  
...  
Keyword(s):  
Risk Assessment ◽  
Soil Pollution ◽  
Urban Soil ◽  
Urban Ecosystem ◽  
Vital Role ◽  
Ecological Environment ◽  
Mental Contamination ◽  
Urban Sustainable Development ◽  
Urban Pollutants ◽  
Pollution Research

Urban soil is a compositional part of urban ecosystem playing a vital role in urban sustainable development for it functions importantly in ecological, environmental and economical area and it is urban pollutants’ source and concourse. This paper systematically concludes and expounds a series of research achievements about soil heavy mental contamination, micro-organic material pollution, the environmental and healthy risk assessment of urban soil pollution of domestic and foreign research in recent 10 years. The development focus and tendency of urban soil pollution research are provided on this base for supplying vital scientific clues for improving urban ecological environment.

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