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Table 1 Aboveground live carbon stored within the study area for the year 2000, estimated by this and previous studies

From: Quantifying and understanding carbon storage and sequestration within the Eastern Arc Mountains of Tanzania, a tropical biodiversity hotspot

Study

Aboveground live carbon, Pg (95% CI range)

Methodology

Resolution (m2)

Disturbance included?

Tanzanian on-the-ground data?

Present study* – Tier 3

1.32 (0.89-3.16)

Correlation equations derived using remotely sensed influential variables.

100

Anthropogenic variables represent human disturbance. Natural disturbance variables also included.

Yes

Willcock et al (2012)* – Original Tier 2 [42]

1.58 (1.56-1.60)

Land cover based look-up table.

100

Only where land cover categories are identified as disturbed (e.g. cropland mosaics).

Yes

Willcock et al (2012) – Harmonised Tier 2 [42]

1.64 (1.52-1.76)

Land cover based look-up table.

100

Only where land cover categories are identified as disturbed (e.g. cropland mosaics).

Yes

Baccini et al (2012) – Tier 1 [3]

2.03

Derived from MODIS and GLAS LiDAR data.

500

Partially includes disturbance through impacts on canopy heights.

Yes

Saatchi et al (2011) – Tier 1 [4]

0.83

Derived from MODIS, SRTM, QSCAT and GLAS LiDAR.

1000

Partially includes disturbance through impacts on canopy heights.

No

Hurtt et al (2006) HYDE-SAGE – Tier 1 [46]

0.63

Modelled from the Miami LU ecosystem model with cropland data from the Centre for Sustainability and the Global Environment.

~110,000

Contains simple submodels of natural plant mortality, disturbance from fire, and organic matter decomposition, as well as wood harvesting.

No

Hurtt et al (2006) HYDE – Tier 1 [46]

0.41

Modelled from the Miami LU ecosystem model.

~110,000

Contains simple submodels of natural plant mortality, disturbance from fire, and organic matter decomposition, as well as wood harvesting.

No

Baccini et al (2008) – Tier 1 [47]

0.34

Derived from MODIS and GLAS LiDAR data.

1000

Partially includes disturbance through impacts on canopy heights.

No

  1. *This study and Willcock et al (2012) are not independent as they are derived from the same underlying data and utilise the same look-up table values.