change is simply described by the rate of income and rate of loss. Our home's energy budget, our firm's inventory, our nation's debt, and humanity's numbers all

Poor land management has degraded vast amounts of land, reduced our ability to produce enough food, and is a major threat to rural livelihoods in many developin

Principles and Practice of Soil Science, FourthEditionprovides a current and comprehensive introduction to soilscience for students in the fields of environment