The winter of 1968-69 produced two to three times the amount of precipitation in the Sierra Nevada area, California and Nevada, as the winter of 1969-70. The deuterium content in snow cores collected at the end of each winter at the same sites, which represents the total snowfall of each interval, shows a depletion in 1968-69 of approximately 20 per mil. The higher snowfall in 1968-69 and the d...

Classification of Ecological Species Groups (ESG) in plant community analysis is one method to describe vegetation and relating them to environmental factors. This study was conducted to recognize ESG and their relationships with some environmental factors in Chamanbid-Jozak protected area from 2014 to 2016. This area is located in the eastern part of North Khorasan province, Iran. The study ar...

introduction: spatial variation of soil properties is significantly influenced by numerous environmental factors such as landscape features, including position, topography, slope gradient and aspect, parent material, climate and vegetation. soil properties vary spatially in south- and north-facing hill slopes. this factor (different slope aspects) can affect the distribution of soil organic mat...

This study evaluated causative factors in landslide susceptibility assessments and compared the performance of five models based on certainty factor (CF), logistic regression (LR), analytic hierarchy process (AHP), coupled CF–analytic (CF-AHP), CF–logistic (CF-LR). Kaiyang County, China, has complex geological conditions frequent disasters. Based field observations, nine influencing factors, na...

The clear need for accurate landslide susceptibility mapping has led to multiple approaches. Physical models are easily interpreted and have high predictive capabilities but rely on spatially explicit and accurate parameterization, which is commonly not possible. Statistical methods can include other factors influencing slope stability such as distance to roads, but rely on good landslide inven...

considering the fact that entrepreneurship can be taught and the emergence of entrepreneurship education, there is a stronger need for newer ways of education such as electronic entrepreneurship education. this research is conducted to identify the success factors of electronic entrepreneurship education in the entrepreneurship faculty of tehran university using a qualitative and quantitative a...