Chris Duke Nature Museum Narration - Educational eLearning Informative
Description
Read MoreVocal Characteristics
Language
EnglishVoice Age
Middle Aged (35-54)Accents
North American (General) North American (US General American - GenAM) North American (US West Coast - California, Portland)Transcript
Note: Transcripts are generated using speech recognition software and may contain errors.
If a clearance emerges in the forest, it's the first one there. The raspberry. It needs light and warmth to grow, so it's lucky that sunlight now falls on the ground. But how does the raspberry managed to get there so quickly? The secret lies under the ground. Its seeds wait there for many decades until enough sunlight warms the soil. For example, after a storm, raspberry uses this moment to Germany grow and spread its seeds. Other plants also use this trick. Some seeds can last upto 100 years. The flowering clearances in the forest are home to many butterflies and other insects. Once the clearances closed by re growing trees, the sun loving plants disappear again. Their seeds sleep until storms, snow or other disturbances provide light on the forest floor again. The top 10 centimeters of forest soil can store a particularly large amount of precipitation water within a short time. The humus layer absorbs rain water like a sponge. One cubic meter of forest floor can hold 200 liters of water, which is in fact just a bit more than fits in a bath. The rain water flows through cavities left by roots and soil animals and slowly spreads into the mineral soils. Fine cavities with forced floor can even supply plants with the stored water after a longer dry period. But even if it rains particularly hard for a long time, the forest floor offers protection for rain, wash and flooding. If the soil is compacted, for example, in fields, it has less capacity to absorb moisture. If it is covered with buildings, it can no longer absorb any water. By the way, the force Florida's not just store water. It filters it to the rain. Water flows deeper and deeper into the ground through tiny pores and larger cracks. In the process, it is purified by microscopically small organisms called microorganisms. When the water reaches an impermeable layer in the subsoil, it accumulates and forms groundwater, which we use as drinking water.