More than 100 Milicz Ponds were created by monks in the Barycz River Valley in the 12th century. Today, many amphibian and bird species as well as various different mammals can be found there. The area is recognised as a wetland of international importance (RAMSAR site). Many Natura 2000 sites, landscape parks and nature reserves can be found there as well. Fish farming is the main feature of the area since many centuries. The intensity of fish farming in the Milicz area has decreased substantially during the last decade. It still contributes to the water pollution (feeding of fish) and habitat destruction. Eutrophication causes excess of reed bed development which leads to loss of nesting places. Decreasing water level of the ponds causes further problems such as increased water temperature and the necessity to remove sediments.
Another threat for the diverse man-made habitat is caused by the intensification of agriculture. Even though there are many fish ponds in the region and a high potential for sustainable tourism, the economy of the area is rather weak due to poor soils, lack of industries and infrastructure.