摘要: Monitoring of rangelands in the western USA formally began U.S. Forest Service 1930s. Other federal land management and advisory agencies did not usually monitor their clients' public or private until after World War II. The initial focus was on portion vegetation that livestock forage. Attention to soils generally came National Environmental Policy Act (NEPA) 1969 changed formerly independent role action gave interested means input oversight actions managerial agencies. NEPA also leverage through courts if a decision liking. result has been near grid, lock proactive diversion large operating funds planning. Availability monitoring data for some locales is largely due foresight persistence particularly dedicated individuals. Lack consistent comparable mo...