AP Environmental Science Mr. Grant Lesson 57. Land Degradation and Soil Conservation (Part 1). Objectives:. Define the terms desertification and salinization . Analyze the types and causes soil erosion and land degradation . Supplementary: Farm Basics - Soil Erosion.
Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.
Land Degradation and Soil Conservation
Despite conservation measures, the U.S. still loses 5 tons of soil for every ton of grain harvested
When added to population growth, some describe agriculture’s future as a crisis situation
Salinization inhibits production of 20% of irrigated cropland, costing over $11 billion/year
Applying synthetic fertilizer vs. a “green manure”
Inorganic fertilizer use has skyrocketed worldwide
70% of the world’s rangeland is classified as degraded, costing $23.3 billion/year
Farm Basics - Soil Erosion