Limitations in sequestering carbon in forests

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Limitations in sequestering carbon in forests

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Atmosphere gives 2 Gt C to surface ocean and 3 Gt C to terrestrial ecosystems ... Net Biome Production (NBP) is the net production of organic matter in a region ... – PowerPoint PPT presentation

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Title: Limitations in sequestering carbon in forests


1
Limitations in sequestering carbon in forests
  • By
  • Promode Kant
  • Indian Forest Service

2
Annual addition to atmospheric carbon-di-oxide
  • Atmosphere gives 2 Gt C to surface ocean and 3 Gt
    C to terrestrial ecosystems annually thru
    photosynthesis
  • Atmosphere receives 1.5-2 Gt C from deforestation
  • Atmosphere receives 6.5 Gt C from fossil fuel use
    and cement production

3
The possibilities in forestry
  • NEP Net Ecosystem Production is the net
    accumulation of organic matter by an ecosystem,
    NEP Net Primary Production heterotrophic
    respiration (losses caused by herbivory and by
    decomposition of debris in soil biota). Global
    Estimation at 10 GtC/yr
  • Net Biome Production (NBP) is the net production
    of organic matter in a region containing many
    ecosystems and includes other anthropogenic and
    natural causes of respiration also like
    harvesting, fires forest clearances, etc. Global
    estimate at 10 of NEP.

4
THE REALITY only 1 approved CDM project yet in
forestry sector
5
Afforestation/Reforestation projects under CDM
  • 20 project methodologies proposed
  • 11 rejected or withdrawn
  • Changes suggested in 4
  • 2 under examination
  • Only 1 approved in China 33K tCO2/year

6
Why?
  • Difficulties in establishing additionality
  • Difficulties in assessing leakages
  • Difficulties in baseline assessment
  • Conflict with biodiversity conservation

7
Why?
  • Issue of non-permanence of carbon sequestered
    temporary CERs heavy discount on tCERs
  • Leading to low economic viability of the projects
  • Carbon credits not enhancing economic returns
    over simple plantation projects also makes
    additionality difficult to establish

8
Does the recent approval in China signify
progress?
  • 4000 ha AR project in two sites, deforested since
    1950, in Pearl River Basin in southern China 33
    K CO2 per annum, 30 yrs crediting period, about
    1M t CO2 total
  • Existing vegetation has remained degraded with
    lt20 crown density over last many years
  • Reforestation with 5 species including eucalyptus
    to enhance productivity
  • Leakages on account of removal by people has been
    considered negligible
  • Leakages considered only on account of N2O
    emission thru fertilizer use and in
    transportation of harvested timber by using
    fossil fuel much easier to assess

9
Does the recent approval in China signify
progress?
  • Return on investment without CER 8.4 and with
    CER 15.7
  • Norm in China for agricultural investment is 12,
    hence it was presumed that without CERs this
    project would not have been taken up. Hence
    additional
  • Large gap between required investment and
    availability of funding among local communities
    and low chances of obtaining loans from
    commercial banks taken as barrier to investments.
    Hence additional as financial barriers would have
    prevented the project otherwise

10
The replicability of Chinese methodology
  • Without project local farmers would have had no
    access to quality planting material. Hence
    additional
  • Also there were no existing skills in forest
    management which are now being brought in. Hence
    additional
  • Additionality tests appear to have become
    reasonable, hence it should help other projects
    in future
  • But leakage assumptions may not hold for other
    tropical countries like India with large
    dependency on forests by local people
  • Also biodiversity conservation requirements may
    not hold in more warmer and humid conditions as
    the species mix would be far more complex

11
The replicability of Chinese methodology
  • Land opportunity costs are usually prohibitive
    unlike the Chinese case where lands were
    considered unattractive for other uses
  • Transaction costs for monitoring, measurements
    etc elsewhere may be prohibitively high unlike in
    Chinese case, with the central govt being a
    participant, where the resources of the Chinese
    Academy of Forestry are being utilized at
    operational costs alone
  • Reforestation projects may continue to encounter
    difficulties

12
Is agro-forestry a better option?
  • Yes, easier to assess and manage leakages in
    private holdings, lower transaction costs,
    sharing of costs with agricultural operations,
    lowered costs of ensuring biodiversity
    conservation and sustainable development, no
    difficulty of obtaining stakeholders consent
  • But definition chosen by most countries for
    forests may pose biggest problem

13

National Forest definitions National Forest definitions National Forest definitions National Forest definitions
  Minimum crown cover 10-30 Minimum area 0,05 ha - 1ha Minimum height 2- 5 m
China 20 0.067 2
Costa Rica 30 1.000 5
Congo 30 1.000 5
Honduras 30 1.000 5
India 30 0.050 5
Nicaragua 20 1.000 4
Uganda 30 1.000 5
Vietnam 30 0.500 3
Yemen 30 0.500 3
14
Is agro-forestry a better option?
  • Except for China Nicaragua these definitions
    favour reforestation of degraded areas as all
    degraded lands lt30 crown cover eligible for
    reforestation under CDM
  • But unfavorable to agriforests as farmers would
    be required to create a crown cover of minimum
    30 density to claim C credits excessive shade
    - not possible with most agricultural crops
  • small minimum land area requirement is not of
    help as it enhances transaction costs

15
The real options in forestry
  • Heavy discounts on temporary CERs, high
    transaction monitoring costs, higher risks
    limit AR
  • Forests as source of renewable energy for
    replacing fossil fuel, both wood and seeds,
    leading to permanent CERs, easier to cross
    additionality tests and leakage assessments, show
    much greater promise

16
THANKS
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