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Showing posts with the label Vegetation

Trees, Shrubs, Flowers and Herbs

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Annex 2. Table of Trees, Shrubs, Flowers and Herbs to Introduce in the Entoto Natural Park. Description of Characters of Seedlings to be Planted in the Park Area Table 1 is based on a meeting at the National Herbarium with Sue Edwards, editor of the Flora "Some Wild Flowering Plants of Ethiopia" (Edwards 1976). Some of the plants in the table are already present in the Entoto area but in various quantities. Some species belong to open areas, and some are forest plants. (A detailed inventory of the vegetation of Entoto started in October 1994.) To get an idea of what can be grown in the Entoto Natural Park, table 2 shows the composition of different vegetation stratas in the Menagesha State Forest, set together by Dr. Sebsebe Demissew at National Herbarium (published in Mountain Research and Development Studies Vol. 8, number 2, May 1988). The indigenous  Podocarpus falcatus (P. gracilior)   tree is scarce on Entoto; it seems that it can no longer give surviving progeny in t...

The Torrential Rains and Erosion

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The scientific and prehistoric phenomenon and background  The significant rainfall over the Ethiopian Highlands The Rising Clouds Convert Their Moisture Into Rain  The humid and warm air that regularly arrives during the rainy season from the Indian Ocean and then rises over the Ethiopian highlands is a meteorological phenomenon known as Orographic Precipitation  (OP) . This meteorological phenomenon is well known, and its explanation is that the rising clouds convert their moisture into rain as they pass over a high mountain mass. The landscape in this picture illustrates the circumstances that affect erosion and its relationship to groundwater levels. Alluvial Water  (AW)  can be crucial for replenishing natural groundwater reservoirs and salvaging nutrient-rich sediment. The loss of this fertile soil frequently occurs and increases without these wetlands, when, instead, this nutrient-rich sediment should be a welcome contribution to both farm...