نتایج جستجو برای: soil mineralogy

تعداد نتایج: 184575  

The pasture and forest land use change to agricultural use can effect on many properties of the soil and its productivity. The present research aims to investigate various forms of K (soluble, exchangeable, non-exchangeable, and structural forms) and some soil properties in different land use of three areas including Choram, Kakan and Bahmaei in Kohgiluyeh and Buyer-Ahmad Province. Four profile...

Journal: :Geoderma 2023

Minerals control many soil functions and play a crucial role in addressing global existential issues. Measuring the abundance of minerals is laborious, costly, time-consuming task; however, spectroscopy can be useful tool to overcome this issue. This work aimed map major mineralogical components soils Brazil from surface 1 m deep at spatial resolution 30 m. Spectral data Brazilian Soil Library ...

Journal: :Canadian Journal of Soil Science 2022

The soil family was developed in the 1960s as fourth level of taxa within hierarchical structure Canadian System Soil Classification. original aim category to provide a framework for checking and establishing limits series while providing link between subgroup level. Its intended use define group numerous based on characteristics important purpose applying appropriate management practices. In c...

2008
Sonja Paul Heiner Flessa Magdalena López-Ulloa

Quantitative knowledge of stabilizationand decomposition processes is necessary to understand, assess and predict effects of land use changes on storage and stability of soil organic carbon (soil C) in the tropics. Although it is well documented that different soil types have different soil C stocks, it is presently unknown how different soil types affect the stability of recently formed soil C...

ژورنال: علوم آب و خاک 2014

One of the main objectives of soil classification systems is to identify the differences of soil properties for management purposes. In this study, the efficiency of American and WRB soil classification systems were compared in order to describe some of soil physical, chemical and mineralogical properties in arid and semiarid regions of central Iran. Khatoon-Abad and Mobarekeh plains as arid re...

2013
Mahdi NAJAFI-GHIRI Ali ABTAHI

Najafi-Ghiri M., Abtahi A. (2013): Potassium fixation in soil size fractions of arid soils. Soil & Water Res., 8: 49–55. Amounts of potassium (K) fixed in soil fractions of 10 calcareous soils of southern Iran were measured to evaluate the contributions of different soil size fractions to K fixation. Soil particles were fractionated after dispersion of the soils with an ultrasonic probe. Potass...

Journal: :Journal of environmental quality 2016
Somchai Butnan Jonathan L Deenik Banyong Toomsan Michael J Antal Patma Vityakon

The ability of biochar applications to alter greenhouse gases (GHGs) (CO, CH, and NO) has been attracting research interest. However, inconsistent published results necessitate further exploration of potential influencing factors, including biochar properties, biochar rates, soil textures and mineralogy, and their interactions. Two short-term laboratory incubations were conducted to evaluate th...

2014
Tzu-Hsing Ko

The objective of this study was to investigate the physical, chemical, and mineralogical composition of lateritic soils in order to use these soils as potential commercial products for industrial application in the future. Five lateritic soils derived from various parent materials in Taiwan, including andesite, diluvium, shale stone, basalt, and Pleistocene deposit, were collected from the Bt1 ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه گیلان - دانشکده علوم کشاورزی 1387

چکیده ندارد.

2005
James K. Mitchell Carlos Santamarina

The understanding of soil behavior during the last 300 years has centered on mechanical principles, geological processes, and later on, mineralogy and the relevance of colloidal chemistry. More recently, research in biology and earth science has enabled important advances in understanding the crucial involvement of microorganisms in the evolution of the earth, their ubiquitous presence in near ...

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