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… of the target species to recolonize remnants in each treatment would then be monitored. In a landscape already … and phosphorus, from fertilizers and human or animal waste causes artificial enrichment (eutrophication) of water … the long term? The following points are not an exhaustive treatment of social and political issues, but are intended to …

… built into practical work on many different areas such as waste management, economic use of nature resources, new bio- … hand-made products, small enterprises for the further treatment of local agricultural products or the development … consumption of resources (land, water, energy), and waste and sewage products also have a negative impact (Engels …