نتایج جستجو برای: soil compaction p 0001

تعداد نتایج: 1446986  

Journal: :Hydrology and Earth System Sciences 2022

Abstract. Compaction and salinization of soils reduce croplands fertility, affect natural ecosystems, are major concerns worldwide. Soil compaction alters soil structure affects the soil's hydraulic properties, it therefore may have a significant impact on evaporation solute transport processes in soil. In this work, we investigated combined compaction, bare evaporation, salt precipitation. X-r...

2013
B. Ji Y. Zhao X. Mu K. Liu C. Li

Subsoil compaction can result in unfavourable soil physical conditions and hinder the root growth of maize. The effects of deep tillage and conventional tillage on soil physical properties and root growth of maize were studied during 2010–2011 at two sites (loam at Hebi and clay at Luohe) in central China. The results showed that soil penetration resistance, bulk density, water content and root...

2016
Françoise Martz Jaana Vuosku Anu Ovaskainen Sari Stark Pasi Rautio

At high latitudes, the climate has warmed at twice the rate of the global average with most changes observed in autumn, winter and spring. Increasing winter temperatures and wide temperature fluctuations are leading to more frequent rain-on-snow events and freeze-thaw cycles causing snow compaction and formation of ice layers in the snowpack, thus creating ice encasement (IE). By decreasing the...

2013
G. M. Siqueira E. F. F. Silva

Soil penetration resistance (PR) is widely used as an indirect indicator of soil strength. Soil PR is linked to basic soil properties and correlated to root growth and plant production, and as such it is extensively used as a practical tool for assessing soil compaction and to evaluate the effects of soil management. This study investigates how results from multifractal analysis can quantify ke...

اسلام بنیاد, امیر, توانکار, فرزام, مجنونیان, باریس,

Forest future depends on forest stands regeneration. Soil is one of the principal capitals in the forest area. It is important to minimize damages to the forest ecosystem during logging operation. In forestry and forest management, it is significant to know the effect of forest logging damages on regeneration, sapling and soil compaction. This study was carried out in Asalem Beech forest area, ...

2011
J. Ma J. Jaraba T. L. Kirkpatrick C. S. Rothrock

In many Arkansas cotton fields, factors such as inefficient tillage operations, extremely dry weather and traffic pressure may result in a compacted soil layer or hardpan. Soil compaction dramatically increases soil strength and can restrict cotton root penetration, leading to suppressed cotton height and lint yield (Taylor and Earl Burnett, 1963). This problem may be exacerbated by soilborne p...

Journal: :The Lancet. Infectious diseases 2017
Sébastien D S Pion Cédric B Chesnais Gary J Weil Peter U Fischer François Missamou Michel Boussinesq

BACKGROUND The standard treatment strategy of mass drug administration with ivermectin plus albendazole for lymphatic filariasis cannot be applied in central Africa, because of the risk of serious adverse events in people with high Loa loa microfilaraemia. Thus, alternative strategies are needed. We investigated one such alternative strategy for mass drug administration for elimination of lymph...

Journal: :Vadose Zone Journal 2021

A well-developed soil structure is a key attribute of productive and functioning soil. Evidence shows that subtle changes in the spatial arrangement binding constituents impart large mechanical hydraulic properties associated ecological services. However, these features remain difficult to quantify at scales relevant for agricultural management. In this work, we propose pedophysical model inter...

2010
Mehmet Topakci Ilker Unal Murad Canakci Huseyin Kursat Celik Davut Karayel

Soil compaction is one of the main negative factors that limits plant growth and crop yield. Therefore, it is important to determine the soil resistance level and map it for the field to find solutions for the negative effects of the compaction. Nowadays, high powered communication technology and computers help us on this issue within the approach of precision agriculture applications. This stu...

2000
G. Totani

This paper presents an overview of the DMT and of its design applications, in the light of the experience accumulated over the last 20 years. The following applications are discussed: determining common soil parameters, predicting settlements of shallow foundations, compaction control, detecting slip surfaces in clay slopes, predicting the behavior of laterally loaded piles, evaluating sand liq...

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