Constructed wetlands are man-made marshes&mdash, gravel beds filled with growing plants&mdash, that function as natural wastewater treatment plants. Due to their more pleasing aesthetics and their cost effectiveness, they are being chosen over traditional processing plants around the world. While other books have outlined how to build constructed wetlands, this book goes the next step as well, outlining the design and planning techniques to make these wetlands attractive and natural looking as well.