نتایج جستجو برای: soil quality

تعداد نتایج: 920223  

2015
Rui Wang Quan Sun Qingrui Chang

Different soil types can significantly affect the composition of wine grapes and the final wine product. In this study, the effects of soil types on the composition of Cabernet Sauvignon grapes and wine produced in the Helan Mountains were evaluated. Three different representative soil types--aeolian, sierozem and irrigation silting soil were studied. The compositions of grapes and wines were m...

Journal: :Canadian Journal of Soil Science 1990

2015
Jonathan A. Black W. Andy Take

Transparent synthetic soils have been developed as a soil surrogate to enable internal visualization of geotechnical processes in physical models. Transparency of the soil dictates the overarching success of the technique; however, despite this fundamental requirement, no quantitative framework has yet been established to appraise the visual quality of transparent soil. Previous approaches to a...

Journal: :مدیریت اراضی 0
رضا سکوتی اسکوئی دانشیار مرکز تحقیقات کشاورزی و منابع طبیعی آذربایجانغربی. سمیه غلام آزاد کارشناس ارشد خاکشناسی. نادر قائمیان هیئت علمی مرکز تحقیقات کشاورزی و منابع طبیعی آذربایجانغربی.

soil degradation means lose of soil quality which usually is caused by improper use of land by human. decline of soil quality includes lose of physical, chemical and biological properties of soil. this study aimed to identify and assess the quality of soil and land, to determine the type of land degradation and estimates their severity based on completed forms gathered field data and mapping th...

حسین خادمی, , حمیده خیر, ,

Understanding the variability of pedological properties as well as the soil quality attributes on different landscape positions in hummocky terrains would result in a better land management in such areas. Despite the importance of such studies, no research has been couducted on the landscape-scale variability of soil quality indices in Iran and most researchers have so far focussed on pedologic...

2000
K. R. Islam R. R. Weil

Human population pressures upon land resources have increased the need to assess impacts of land use change on soil quality. In order to assess effects of land use changes on soil quality properties in a tropical forest ecosystem of Bangladesh, soil samples were collected from adjacent well-stocked Shorea robusta natural forest, land reforested with Acacia, grassland and cultivated land. Land u...

Journal: :Journal of environmental sciences 2007
Cheng Jie-liang Shi Zhou Zhu You-Wei

Heavy metal concentrations in agricultural soils of Zhejiang Province were monitored to indicate the status of heavy metal contamination and assess environmental quality of agricultural soils. A total of 908 soil samples were collected from 38 counties in Zhejiang Province and eight heavy metal (Cd, Cr, Pb, Hg, Cu, Zn, Ni and As) concentrations had been evaluated in agricultural soil. It was fo...

Journal: :Soil and Water Research 2023

The paper proposes a new soil evaluation system using the principle of Saaty method. method has been modified and named Soil Assessment System (SAS). Significance weights are assigned to individual characteristics (indicators). This provides more detailed differentiation significance indicator on quality accurate assessment, especially in marginal cases where assessment by methods used so far n...

2007

Both climate and plant species are hypothesized to influence soil organic carbon (SOC) quality, but accurate prediction of how SOC process rates respond to global change will require an improved understanding of how SOC quality varies with mean annual temperature (MAT) and forest type. We investigated SOC quality in paired hardwood and pine stands growing in coarse textured soils located along ...

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