نتایج جستجو برای: gravel

تعداد نتایج: 3625  

ژورنال: آبخیزداری ایران 2020

       In this study, the possibility of using a combination of gravel filters with plastic cover to increase water infiltration and soil moisture storage in rainwater catchment systems was investigated. For this purpose, five treatments (with three replications) including control treatment, vegetation removal with filter, vegetation removal without filter, semi-insulated system with filter, an...

2016
Tian Y. Dong Jeffrey A. Nittrouer Elena Il’icheva Maksim Pavlov Brandon McElroy Matthew J. Czapiga Hongbo Ma Gary Parker

The Selenga River Delta, Lake Baikal, Russia, is ~600 km2 in size and contains multiple distributary channels that receive varying amounts of water and sediment discharge. The delta is positioned along the deep-water (~1600 m) margin of Lake Baikal, a half-graben–styled rift basin, qualifying it as a modern analogue of a shelf-edge delta system. This study provides a detailed field survey of ch...

2009
Megat M. Noor

The last few decades witnessed sharp focus on environment pollution and its impact on life in nature. Wetlands can be used for biological treatment of wastewater. Problem statement: Scarcity of water is considered as a global problem and Iran is one the countries which is facing water shortage problem. Pollution of water bodies restrict the availability of water for various uses. Treatment of w...

Journal: :Geological Magazine 1911

Journal: :American Anthropologist 1969

Introduction: Due to the detrimental consequences of the application of stabilizers such as mulch and other protectives on the soil surface, including the wafting of bad smell, blackening of the ground, increasing thermal coefficient, warming of the whole area, and even destruction of plants and their unsustainability in nature, wide use of such stabilizers could not be considered as a useful s...

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