Chemical weathering is an integral part of both the rock and carbon cycles and is being
affected by changes in land use, particularly as a result of agricultural practices such as …

The global carbon budget is, of course, balanced. The conservation of carbon and the first
law of thermodynamics are intact.“Balancing the carbon budget” refers to the state of the …

For the past 3.8 billion years, the geochemistry of the Earth's surface-its atmosphere, waters
and exposed crust-has been determined by the presence of biota. Photosynthetic organisms …

The metabolic rates of seagrass communities were synthesized on the basis of a data set on
seagrass community metabolism containing 403 individual estimates derived from a total of …

Recent analyses of land-use change in the US and China, together with the latest estimates
of tropical deforestation and afforestation from the FAO, were used to calculate a portion of …

Ecology Letters (2011) 14: 939–947 Abstract Tropical rain forests play a dominant role in
global biosphere‐atmosphere CO2 exchange. Although climate and nutrient availability …

Summary 1 The ongoing enrichment of the atmosphere with CO2 raises the question of
whether growth of forest trees, which represent close to 90% of the global biomass carbon …

Forest biomes are major reserves for terrestrial carbon, and major components of global
primary productivity. The carbon balance of forests is determined by a number of component …

Terrestrial ecosystems in the humid tropics play a potentially important but presently
ambiguous role in the global carbon cycle. Whereas global estimates of atmospheric CO2 …

Forest age, which is affected by stand‐replacing ecosystem disturbances (such as forest
fires, harvesting, or insects), plays a distinguishing role in determining the distribution of …