gullies are difficult and costly to repair. What causes gully erosion ? Gully erosion occurs when water is channelled across unprotected land and washes away the soil along the drainage lines. Under natural conditions‚ run-off is moderated by vegetation which generally holds the soil together‚ protecting it from excessive run-off and direct
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Laboratory Network for Environmental Monitoring (LRSE)‚ Oran‚ Algeria 2 Department of Plant Science‚ Faculty of Agriculture‚ University of Agricultural Science and Veterinary Medicine‚ Bucharest‚ Romania Key words: Oran coast‚ Biodiversity‚ Vegetation‚ coastal flora‚ Marsat-El Hadjaj. Article published on April 11‚ 2015 Abstract According to Eurostat report data (EU Statistical Office) the enormous impact of tourism on ecosystems would be one of the most important causes of biodiversity degradation
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to easier access to site hence more visitors. Vegetation is not unique but is important for water shed management and aesthetic reasons. Vegetation is mostly secondary growth. It is estimated that 60 % of the park area is formed by natural vegetation. However‚ cultivative species such as the Diptoryx ordorata(tonca bean) and calabash are common. Bamboo is also plentiful and is planted in riparian zones for ricer bank stabilization. The vegetation and
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appeal my hypothesis. | Stream ecology is the overall health of the water and the surrounding ecosystem. There are many different components that make up a stream’s health. The main factors that affect stream ecology are: geology‚ climate‚ vegetation‚ nutrients‚ bacteria‚ temperature‚ DO (Dissolved oxygen)‚ and toxic chemicals. The shape of the land and the soil is also a big part and can be changed with human activity. The pace of the stream can also change the type of ecosystem that the stream
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factor‚ it refers to the shape and elevation of the land.It includes features like mountains‚ hills‚ plains‚ valleys‚ and deserts. Vegetation is the third environmental factor which is in charge of plant life. There are many kinds of vegetation‚ such as trees‚ bushes‚ flowers‚ grass‚ and reeds. Wherever people settled in the ancient world‚ water‚ topography‚ and vegetation were important factors. In fact‚ thanks to the environmental factors it influenced the early settlements of the Egyptians‚ Kushites
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STUDY ON THE SPACIAL AND TEMPORAL DISTRIBUTION CHARACTERISTIC OF MACROPHYTE IN LAKE EAST TAIHU Yang Chenchi1‚ Jia Shuting1‚ Li Jianhua1‚ Sun Jun2 1 College of Environmental Science and Engineering‚ Tongji University‚ 1239 Siping Road‚ Shanghai 200092‚ China 2College of environmental and chemical engineering‚ Shanghai University，333 Nanchen road，Shanghai 200444‚ China ABSTRACT Three times situ surveys were conducted during Mar. and Sep. 2013. The result showed that: biomass reached the
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into contact with the skin‚ eyes‚ or through inhalation from sprays (NPIC‚ 2015). Although Ranger Pro is known to be relatively nontoxic to dogs and other domestic animals‚ ingestion of this product or exposure to large amounts of freshly sprayed vegetation may result in irritation of the eyes‚ skin‚ and the gastrointestinal tract‚ resulting in vomiting and diarrhea (Ranger Pro®‚
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Tropical evergreen forest Tropical forests are characterized by the greatest diversity of species. They occur near the equator‚ within the area bounded by latitudes 23.5 degrees N and 23.5 degrees S. One of the major characteristics of tropical forests is their distinct seasonality: winter is absent‚ and only two seasons are present (rainy and dry). An evergreen forest is a forest consisting entirely or mainly of evergreen trees that retain green foliage all year round. Such forests reign the tropics
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are causing profound changes to ecosystems around the world. However‚ it is difficult to generalise about their effects on ecosystem properties‚ since these vary according to the traits of the invading species‚ and the properties of the invaded vegetation and habitat. Yet‚ knowing the inherent functional traits of an exotic invasive plant could improve understanding of its invasion success and impact‚ since plant traits affect ecosystem properties such as through fall distribution‚ soil temperature
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