نتایج جستجو برای: water erosion crisscross region

تعداد نتایج: 1080795  

2007
Bedrich Benes

We present a new real-time hydraulic erosion simulation for Computer Graphics. In our system water runs over the surface and disintegrates the underlying layer of soil. The grit is simulated as a fluid with higher viscosity and moves on the ground of the water pool. When water evaporates, or the dissolved soil exceeds a critical level, the dissolved matter is deposited back on the ground for ac...

2007
P. R. Robichaud

After wildfires, land managers must assess the potential for increased flooding, erosion, and sedimentation, and the increased threat these effects may pose to people, structures, and valued resources. A Web-based Erosion Risk Management Tool (ERMiT) has been developed to predict surface erosion from postfire hillslopes, and to evaluate the potential effectiveness of various erosion mitigation ...

Journal: :journal of agricultural science and technology 2010
s. s. hosseini m. tahmasebi gh. r. peykani

this study investigated the factors influencing the decision to plant almonds in the saman region of chaharmahal-bakhtiari province in central iran through conducting an economic survey in 2005. using portfolio investment theory and econometric model esti-mation (shively, 1998), this paper identifies the most important factors influencing the in-dividual farmer’s decision concerning the number ...

Because Geno protected area didn’t protect enough, it cause to use lots of part for domestic animal productivity and this ecosystem with special plant and animal species degrade. This study was down with this goal: determining of proper region for soil protection, rehabilitation and special use according dry region potentials. We use these maps: slope, aspect, elevation, soil, plant cover and r...

Journal: :Remote Sensing 2017
Zhikun Ren Zhuqi Zhang Jinhui Yin

The 2008 Wenchuan earthquake and associated co-seismic landslide was the most recent expression of the rapid deformation and erosion occurring in the eastern Tibetan Plateau. The erosion associated with co-seismic landslides balances the long-term tectonic uplift in the topographic evolution of the region; however, the quantitative relationship between earthquakes, uplift, and erosion is still ...

Farida Abubakari Fariya Abubakari Victor Owusu

Soil erosion is one of the most important forms of land degradation that threatens continued and sustained agricultural production in Ghana. The most severely affected areas are the three northern regions especially Upper East Region, where large tracts of land have been destroyed by water erosion leading to soil depth reduction and decline in soil fertility. This study was carried out in Talen...

Extended abstract 1- Introduction The degradation of natural resources in recent decades has led to increasing the erosion and an increase in the sediment production rates. Many activities are carried out at watershed level in order to control the destruction and decrease its effects. Assessment of watershed management projects is one of the most important issues performed today of implementa...

Journal: :تحقیقات آب و خاک ایران 0
سیدحمیدرضا صادقی استاد/ دانشگاه تربیت مدرّس حسین خیرفام دانشگاه تربیت مدرس مهدی همایی دانشگاه تربیت مدرس بهروز زارعی دارکی دانشگاه تربیت مدرس

runoff production process is a key hydrological component illustrating watersheds health. water infiltration in soil is also one of the determinant factors on runoff generation for which many techniques were used to improve it. however, the role of microorganisms for the improvement of water infiltration in soil has been less considered. the present study therefore tried to investigate the effe...

2011
Daniele de Rigo Claudio Bosco

Soil erosion implications on future food security are gaining global attention because in many areas worldwide there is an imbalance between soil loss and its subsequent deposition. Soil erosion is a complex phenomenon affected by many factors such as climate, topography and land cover (in particular forest resources, natural vegetation and agriculture) while directly influencing water sediment...

2013
Juying Jiao Luyan Han Yanfeng Jia Dong Lei Ning Wang Linyu Li

The role of water erosion on seed loss and on plant establishment and distribution is unknown on the Chinese Loess Plateau, which suffers serious soil erosion. The seed susceptibility of 16 local species to removal by water erosion from loess slopes was determined by rainfall simulation experiments. The experiments were performed on slopes with gradients of 10°, 15°, 20° and 25° for a 60-min du...

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