نتایج جستجو برای: rill
تعداد نتایج: 252 فیلتر نتایج به سال:
Due to the development of scale tractor-ploughed terraces, terraces have been increasing in number, while global climate change is causing frequent extreme rainfall events Loess Plateau, resulting many terrace landslides. To study mechanism and process shallow landslides deep slip surface induced by loess hill gully area, we conducted a laboratory model test under artificial used Swedish arc st...
because of the presence of special properties in semi arid catchment, these areas are suitable for drought events. the responses of these areas to drought events are in the form of the disappearance of plant cover on surfaces slopes, intensive erosion or landslide occurrence on side of riversâ course. azarshahr catchment (situated in 37ë 36â² to 37ë 49â² n and 44ë 20â² to 45ë 49â² e) ...
The higher rate of slope erosion in the Himalayan basins is contributing to rapid change landform mountainous terrain, which has caused sedimentation, and inundation downstream. Tamakoshi basin a trans-boundary river that originates from Tibet flows through Dolakha Ramechap districts before joining Sapta Koshi river. Few studies exist Nepal attempting quantify susceptibility. However, they are ...
Soil erosion is a globally challenging issue that hinders agricultural productivity by enhancing land degradation and loss to the top fertile soil. Although it global issue, its effect adverse on farmers dwell in developing countries. Hence, providing information soil crucial plan implement appropriate water conservation measures. Accordingly, estimation models were developed grouped as empiric...
Pandemi Covid-19 sepanjang tahun 2020 menjadi suatu ujian bagi masyarakat dan pemerintah dimana dampaknya tidak hanya pada terbatasnya aktivitas sosial namun juga berdampak terhadap perekonomian global domestik. mengalami tekanan baik dari sisi supply karena perusahaan dapat beroperasi secara optimal maupun demand mobilitas kegiatan ekonomi berhenti. keuangan umum dampak sektor rill yang terdam...
Due to frequent human disturbance and the influence of crop growth development, migration soil organic carbon (SOC) in sloping farmland is considerably different those other ecosystems. The impacts maize over its entire period on SOC loss purple soils under erosion stages were investigated, 2016. This was undertaken using rainfall simulation tests 15° slopes with a intensity 1.5 mm·min−1, Sichu...
Incision as a result of fluvial erosion is an important process to model when simulating landform evolution. For gullies, it apparent that coupled with the processes cause incision there must be range stop incision. Once started, rills and gullies will grow infinitely without reduction in support area and/or being arrested by deposition armouring. Some these have been well studied under heading...
This study aimed to investigate the dynamic changes of rill erosion and evaluate the ability of Hairsine-Rose model in estimation of sediment concentration. The experiments were carried out at the Soil and Water Conservation Research Station of Tehran University in Kuhin, Qazvin. Four flow rates were tested at three slopes in trapezoidal hand-made rills of 3 m long and 5 cm base width. Outflows...
The black soil region of Northeast China has suffered from severe soil erosion by water. Hillslope and gully erosion are the main erosion types. The objective of this research was to integrate the assessment of hillslope and gully erosion and explore spatial coupling relations between them in the Mushi River sub-catchment using geographical conditions monitoring (GCM) including remote sensing (...
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