نتایج جستجو برای: rain erosion

تعداد نتایج: 47261  

Journal: :Jurnal Teknik Pertanian 2023

Deforestation in the Serayu watershed, Central Java province, Indonesia for agriculture and other uses leaves only 0.73% of vegetation. It has triggered a number problems such as soil loss (erosion), landslides, floods sedimentation downstream. Environmental damage control needs to be applied through appropriate conservation programs. This study aims understand distribution erosion effectivenes...

2005
Carlos E. Ramos-Scharrón Lee H. MacDonald

Excess delivery of land-based sediments is an important control on the overall condition of nearshore coral reef ecosystems. Unpaved roads have been identified as a dominant sediment source on St John in the US Virgin Islands. An improved understanding of road sediment production rates is needed to guide future development and erosion control efforts. The main objectives of this study were to: ...

2000
MAGNUS LAND BJÖRN ÖHLANDER

Chemical weathering rates and erosion rates of granitic till in northern Sweden have been estimated. The present-day chemical weathering rate is compared with the long-term average weathering rate since the last deglaciation approximately 8,700 years ago. Also, the present-day release rates of major and trace elements due to chemical weathering are compared with the mobility of these elements i...

Journal: :Energies 2022

Rain erosion on wind turbine blades raises considerable interest in energy industry and research, the definition of accurate prediction systems can facilitate a rapid development solutions for blade protection. We propose here application novel methodology able to integrate multibody aeroelastic simulation whole turbine, based engineering models, with high-fidelity simulations aerodynamics part...

2009
Manuel López-Vicente Ana Navas

Accurate assessment of soil loss is essential for sustainable agricultural production, 11 management and conservation planning, especially in productive rain-fed agro-ecosystems 12 and protected areas. The European Union considers soil as a non-renewable resource and 13 identifies that soil degradation has strong impacts on soil and water resources. In this work the 14 Revised Universal Soil Lo...

Journal: Desert 2007
A. Salehpour Jam GH. Zehtabian H. Refahi M. Kianian M. Pajuohesh,

Abstract In order to study the effect of super absorbent on runoff volume in slopes and various intensity of rainfall research was accomplish according to split – factorial blocks method with main treatment and two accessory treatments in three replicate . the main treatment consist of three dominant slopes (10 , 20 , 30 percent ) and accessory treatments consist of five levels of substance su...

Journal: :Engineering 2021

Unpailt roads are generally subject to erosion, when they need be bitumen, civil engineers know the geotechnical capabilities of soil layers used as support, among these capabilities, for example, characteristics withstand erosion. CBR has often been classify soils according their compaction. In this article, we propose a correlation between and eroded mass through simulator. Indeed, in article...

The biological and mechanical measures adapted to crucial renewable resources (water, vegetation and soil) and sustaining agriculture and soil fertility. However, local inhabitants’ participation is the main challengeable issue, particularly maintaining the constructed watershed management projects. The objectives of this research were to evaluate the watershed management measures which constru...

Journal: :Energies 2021

Leading-edge erosion at wind turbine blades cause a loss in profit for farm owners, particular offshore. The characterization of the rain environmental load is based on long-term rate and speed observations 10-minute resolutions coastal stations around North Sea, Baltic inland. It assumed that an IEA Wind 15 MW installed each station. leading-edge lifetime found to increase from South along Ger...

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