Estimating Changes in the Carbon Content of Terrestrial Ecosystems from Historical Data

摘要: When forests are cleared for agricultural crops, the carbon stored originally in trees is oxidized and released to atmosphere, either rapidly if burned or slowly they left on ground decay. Similarly, organic matter of soil reduced through cultivation. Such reductions stocks terrestrial systems occur with harvest wood clearing cropland, pasture, other uses. On hand, regrowth following harvest, abandonment agriculture, establishment plantations increases storage land, both vegetation soils. The balance between major factor determining changes net systems. Non-forested can also lose accumulate carbon, such as when grasslands converted agriculture; however, per unit area much smaller than forests.