نتایج جستجو برای: soil physicaland chemical properties

تعداد نتایج: 1337091  

Journal: :desert 2014
samira hossein jafari mohammad reza tatian reza tamartash ali akbar karimian

owing to the importance and necessity of identifying soil properties in arid rangeland management, and the variableeffects of different kinds of herbivores on soil, this study compares some of the physical and chemical properties ofsoil between two regions experiencing livestock and wildlife grazing in the desert rangelands of kalmand-bahadoranin yazd province. the key areas in two regions expe...

2012
Jinman Wang Zhongke Bai Peiling Yang

The main component of the byproducts of flue gas desulfurization (BFGD) is CaSO(4), which can be used to improve sodic soils. The effects of BFGD on sodic soil properties and sunflower growth were studied in a pot experiment. The experiment consisted of eight treatments, at four BFGD rates (0, 7.5, 15 and 22.5 t ha(-1)) and two leaching levels (750 and 1200 m(3) ha(-1)). The germination rate an...

2012
Pierre Plassart Sébastien Terrat Bruce Thomson Robert Griffiths Samuel Dequiedt Mélanie Lelievre Tiffanie Regnier Virginie Nowak Mark Bailey Philippe Lemanceau Antonio Bispo Abad Chabbi Pierre-Alain Maron Christophe Mougel Lionel Ranjard

Soil DNA extraction has become a critical step in describing microbial biodiversity. Historically, ascertaining overarching microbial ecological theories has been hindered as independent studies have used numerous custom and commercial DNA extraction procedures. For that reason, a standardized soil DNA extraction method (ISO-11063) was previously published. However, although this ISO method is ...

Journal: :Journal of the science of food and agriculture 2016
Magali Leonel Ezequiel L Carmo Adalton M Fernandes Célia M L Franco Rogério P Soratto

BACKGROUND Starch is the major component of potato tubers, amounting approximately to 150-200 g kg (-1) of the tuber weight. Starch is considered to be a major factor for the functionality of the potato in food applications. This study evaluated the physical characteristics of potato starches isolated from tubers of different potato cultivars grown in soil with three levels of phosphorus (P) av...

2017
R. L. Yale M. Sapp C. J. Sinclair J. W. B. Moir

Accelerated degradation is the increased breakdown of a pesticide upon its repeated application, which has consequences for the environmental fate of pesticides. The herbicide atrazine was repeatedly applied to soils previously untreated with s-triazines for >5 years. A single application of atrazine, at an agriculturally relevant concentration, was sufficient to induce its rapid dissipation. S...

2017
Yo-Jin Shiau Hsueh-Ching Wang Tsai-Huei Chen Shih-Hau Jien Guanglong Tian Chih-Yu Chiu

Badland soils-which have high silt and clay contents, bulk density, and soil electric conductivity- cover a large area of Southern Taiwan. This study evaluated the amelioration of these poor soils by thorny bamboo, one of the few plant species that grows in badland soils. Soil physiochemical and biological parameters were measured from three thorny bamboo plantations and nearby bare lands. Resu...

2015
Mark A. Higgins Gregory P. Asner Christopher B. Anderson Roberta E. Martin David E. Knapp Raul Tupayachi Eneas Perez Nydia Elespuru Alfonso Alonso

Field studies in Amazonia have found a relationship at continental scales between soil fertility and broad trends in forest structure and function. Little is known at regional scales, however, about how discrete patterns in forest structure or functional attributes map onto underlying edaphic or geological patterns. We collected airborne LiDAR (Light Detection and Ranging) data and VSWIR (Visib...

2018
Bence Mátyás Maritza Elizabeth Chiluisa Andrade Nora Carmen Yandun Chida Carina Maribel Taipe Velasco Denisse Estefania Gavilanes Morales Gisella Nicole Miño Montero Lenin Javier Ramirez Cando Ronnie Xavier Lizano Acevedo

Soil management has great potential to affect soil respiration. In this study, we investigated the effects of organic versus conventional soil management on soil respiration.  We measured the main soil physical-chemical properties from conventional and organic managed soil in Ecuador. Soil respiration was determined using alkaline absorption according to Witkamp.  Soil properties such as organi...

2012
Liping Qiu Xingchang Zhang Jimin Cheng Xinning Han

Re-vegetation is an important practice for eco-environmental rebuilding of degraded environments. Accordingly, re-vegetation has been widely used to reduce erosion and protect soils against degradation in the Loess Plateau. However, little research has been conducted to study the effects of long-term re-vegetation on soil properties, which is essential to reveal corresponding changes in soil qu...

Journal: :Environmental science and pollution research international 2014
Masoud Naseri Abbas Barabadi Javad Barabady

The Arctic environment is very vulnerable and sensitive to hydrocarbon pollutants. Soil bioremediation is attracting interest as a promising and cost-effective clean-up and soil decontamination technology in the Arctic regions. However, remoteness, lack of appropriate infrastructure, the harsh climatic conditions in the Arctic and some physical and chemical properties of Arctic soils may reduce...

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