Table 3. Values, references, and timescales for aboveground (ABG) C storage for different land-use types in the humid tropics.


Land-use type ABG C (Mg ha-1) Source Period (years) *
Forest 80 Marín-Spiotta et al. (2007)
172; 155; 191; 264 Hughes et al. (2000)
235 Kirby and Potvin (2007)
 
Agroforest 82 Kirby and Potvin (2007)
 
Pasture 14; 23; 14; 4.4; 3.9; 3.1; 18 Hughes et al. (2000)
4.2 Kirby and Potvin (2007)
 
Teak plantation 98; 128; 122; 94 Kraenzel et al. (2003) 20
 
Secondary forest 24; 62; 45; 83; 125 Marín-Spiotta et al. (2007) 10; 20; 30; 60; 80
2.1; 28; 17; 51; 11; 137; 41; 129; 104; 122; 136 Hughes et al. (1999) 0.5; 4; 8; 8; 10; 16; 20; 20; 26; 30; 50
 
Enrichment planting 113 Our estimate Planted trees: 20
Sec. forest: >40

* Forest, agroforest, and pasture assumed to hold a constant quantity of C.
† C content calculated from biomass and ratio of C content.