نتایج جستجو برای: erosion hazard index
تعداد نتایج: 482333 فیلتر نتایج به سال:
This paper tests the candidacy of one qualitative response model and two quantitative models for a nationwide water erosion hazard assessment in Ethiopia. After a descriptive comparison of model characteristics the study conducts a statistical comparison to evaluate the explanatory power of the models, using an Ethiopian soil erosion data set as reference. The study, therefore, introduces a gen...
The Standardized Precipitation Index (SPI) is a widely used drought index to provide good estimations of the intensity, magnitude and spatial extent of droughts. The objective of this study was to analyze the spatial pattern of drought by SPI index. In this paper, patterns of drought hazard in Khuzestan are evaluated according to the data of 17 weather stations during data recording. The influe...
this study has been carried out to determine the accumulation of heavy metals (arsenic, copper, lead, tin and zinc) in fish samples collected from former tin mining catchment. total eight types of fish family having fifteen different species are identified. cyperinidae is the most abundant family with eight different species found in the catchment. fish samples were analysed by using inductivel...
The land problem that commonly occurs in Ranu Pani Watershed is erosion. an area located the mountains with very high soil Therefore, it necessary to conduct good management upstream and downstream areas. first step before carrying out analyze occurrence of erosion Watershed. purpose this research was predict potential distribution spatial data.. results showed erosivity value 961.44 heavy clas...
assessment of long term erosion and accretion rate of the coastal area is essential for selectionof different types of coastal structures. for example, it is not advisable to develop housing infrastructure onthe coast, which is historically eroding. similarly it is not preferable to select an accreting site for theconstruction of a port in order to avoid annual maintenance dredging after constr...
It is highly likely that coastal erosion due to long-term sea level rise associated with global warming will have a significant impact on Australia’s coastal systems, and any associated infrastructure, over the next century. Long-term coastal erosion is thought to occur largely through sudden-onset storm events. Therefore, attempting to quantify this natural hazard is critical to future develop...
evaluation the effect of swimming time on dental erosion among swimmers m. mehdipour 1 , a. taghavi zenooz 2 , n. gholizadeh 3 , a. bahramian 4 , n. sartip pour 5 1 associate professor, department of oral medicine , school of dentistry, shahid beheshti university of medical sciences. tehran, iran 2 associate professor, department of oral medicine , school of dentistry, tabriz universi...
A description of Kentucky's land base indicates that of nearly 15 million acres suitable for cropland usage, approximately three-fourths bas an erosion hazard potential of some degree, relating largely to steepness of slope (1). For this reason, there is a large potential acreage of alfalfa and other perennial forage crops relating to their sod forming growth habit which provides them an inhere...
ROONEY, J.J.B., and FLETCHER, C.H. III, 2004. Shoreline change and Pacific climatic oscillations in Kihei, Maui, Hawaii. Journal of Coastal Research, 21(0), 000–000. West Palm Beach (Florida), ISSN 0749-0208. Increasing demands on coastal areas require enhanced understanding of coastal erosion hazards. Here we analyze a 5-km segment of the Kihei coastline (Maui, Hawaii) centered on an area of c...
Science-based, holistic, site-specific water conservation practices can reduce water use on turfgrass sites without adversely affecting turfgrass performance. However, when water use is decreased below a certain threshold, performance declines. Water conservation measures that reduce turfgrass performance essentially decrease its economic, environmental, recreational, and aesthetic values, whic...
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