Similar to a sieve, the willows allow water to flow through but trap the sediment back. Within a year, these structures can trap up to 10cm of sediment. Over time, this increases as the willows become more established and more sediment can be kept back. After 20 to 30 years, the vegetation will have complete cover and sediment erosion is almost completely stopped.
Vintage Original Poster New Mexico Historic Nature by TheEAShop, $30.00 America the Beautiful - New Mexico- Irrigated River Bottomland, San Juan Soil and Water Conservation District Series: America the Beautiful by the U.S. Department of Agriculture Soil Conservation Service www.elizabethandersen.com
In a cooperative study between mushers and the Fairbanks Soil and Water Conservation District in Alaska, researchers are finding that with some special precautions, dog waste can be successfully composted. The Recipe 2 parts dog manure 1 part sawdust Collect ingredients. When sufficient quantities have been accumulated, mix well and allow to cook to at least 140 degrees F, turning at least once a week. It usually takes 4-8 weeks to get a crumbly, dirt-like mixture.