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Anjar Yogie Supriantna

I am interested about carbon stock on community forest, because timber and non-timber forest products have been  the main commodities for their livelihoods including the market mechanisms. The climate change could provide opportunities for smallholder farmers  in developing countries to participate in mitigating atmospheric carbon. 
Tropical forests in their natural condition contains more aboveground C per unit area than any other land cover type. Where forests that have stored  C during a century or more of small annual increments in tree biomass are converted to more open vegetation, a large net release to the atmosphere occurs, either in a matter of hours for fire, during several years due to decomposition, or over periods of up to decades where wood products enter domestic/urban systems. The net emissions can be estimated from the decrease or increase in the terrestrial C stocks, for example, when an annual accounting step is used.
Natural forest is storing carbon (C) the highest when compared with agricultural land use systems. Therefore, a natural forest with a diversity of species long-lived trees and litter the lot is the highest C storage. When forest changed it’s function into agricultural lands or plantations or pasture then the amount of C stored will degenerate. Amount of C stored between land these vary, depending on the diversity and density of existing vegetation, soil type and how its management.
Increasing  level  of atmospheric greenhouse gases are believed to be a main contibution to global warming, which studies showed is changing the earth’s wheather  patterns and could raise ocean levels substantially in the next 100 years (schimel et al., 1995; Watson et al., 1996).

Methods aboveground parameters and methods used in carbonstock measurement

No.

Parameter

Methods

1.

Living trees with a stem diameter of

  • 30 cm in standard sample plot (20m * 100 m)
  • 5 <.... <30 cmin large area (5m * 40 m)

Non –destructive measurement of stem diameteres, apply allometric equation on the basis of stem diameter.

2.

Understorey vegetation (including trees < 5 cm in diameter) sample plot (0.5m * 0.5 m)

 

Destructive

3.

Litter :

  • Coarse/standing Litter
  • Fine Litter
  • Surface roots

 

Destructive

4.

Ash

Destructive

5.

Dead standing trees

Non-destructive, apply allometric  or cylinder equation (for branched      & unbranched remains, respectively)

6.

Dead felled trees

Non-destructive, apply cylinder        (or allometric) equation

7.

Stump (trunk) remains in forest

Non-destructive, apply cylinder equation


Figure for nested plot design for sampling various carbon pools at appropriate scales

Where :
       Trees > 30 cm diameter at 1.3 m, inside or outside plot
       Trees 5<.... <30 cm diameter at 1.3 m, inside or outside plot
      Understorey & litter layer sample plot
This study was aimed to estimate the Carbon Stock on Community Forest, Lampung Province of Indonesia within three years between 2006 and 2009. In more detail, this study has three main objectives, i.e:
1.   To obtain population distribution species trees in Community forest;
2.   To identify the land cover changes in Community forest during 2006 – 2009; and
3 To estimate the amount of carbon stock on Community forest  in Tanggamus, Lampung Province, Indonesia.
This study is expected to fostering cooperation between communities  and government, to promote knowledge and understanding of forestry degradation, and to find methods for rehabilitation of the degraded forests would help increase the potentiality of community forests as a carbon sink.

 

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