نتایج جستجو برای: r 2002 seagull influence on soil properties

تعداد نتایج: 9202897  

2003
F. Borry D. Gulle A. Lewis

There is a need for understanding how certain soils adversely affect the performance of metal detectors used in demining. This paper discusses the relevant soil electromagnetic properties that influence detector performance and includes possible methods of measuring these properties. Data from preliminary experiments are used to relate detector performance to soil properties. The results establ...

2009
Mariusz Kulik

The biological value of fodder is estimated on the basis of its content of particular macroelements (N, P, K, Ca, Mg). Concentration of these components in fodder depends on many factors, mainly on the properties of soil, type of land use and growth phase of crops. The aim of this paper was to estimate the effect of soil properties, land use and species composition of a sward mixture on the con...

2013
Marcelo Scavuzzo

An overview of the Geospatial Methodologies used in order to assess the Soil Erosion Risk by water. 1.2 The damages on Land are traduced in " Soil Erosion " , " Soil Degradation " and/or " Ecosystem Decline " .. Introduction The Soils constitute one of the most important of the world's natural resources. Life on earth is totally dependent on well management of soils (Agurgo, 1996). Into of the ...

ژورنال: علوم آب و خاک 2011
فایز رئیسی, , فخرالسادات موسوی, ,

Although the crucial function of earthworms in improvement of soil physical properties is well -know, but very little is known of the interactive influence of earthworms and organic materials on soil properties such as soil aggregate stability, particularly in arid and semi-arid soils. The low organic matter content and the significant role of earthworms in improving physical properties of arid...

2016
Witoon Purahong Walter Durka Markus Fischer Sven Dommert Ricardo Schöps François Buscot Tesfaye Wubet

Tree species identity and tree genotypes contribute to the shaping of soil microbial communities. However, knowledge about how these two factors influence soil ecosystem functions is still lacking. Furthermore, in forest ecosystems tree genotypes co-occur and interact with each other, thus the effects of tree genotypic diversity on soil ecosystem functions merit attention. Here we investigated ...

Forest fire is the major disturbance that can severely destruct genetic stocks and delays evolution of the forest to reach the climax stage. In this research, the effect of fire, vegetation and soil changes from 2002 to 2013 have studied. Following the steps of determining the scope of fire using GPS, preparing a homogeneous unit map in ArcMap software and implementing a systematic random-acces...

Journal: :Revista de biologia tropical 2013
Nathaniel A Lyngwi Khedarani Koijam D Sharma S R Joshi

The Northeastern part of India sprawls over an area of 262 379km2 in the Eastern Himalayan range. This constitutes a biodiversity hotspot with high levels of biodiversity and endemism; unfortunately, is also a poorly known area, especially on its microbial diversity. In this study, we assessed cultivable soil bacterial diversity and distribution from lowlands to highlands (34 to 3 990m.a.s.l.)....

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