Agriculture Reference
In-Depth Information
16.15
FUTURE RESEARCH NEEDS
•
There is an urgent need to launch long-term (>10 years) field experiments to
quantify the influence of RMPs on the soil carbon sequestration in various
ecosystems and crop production systems.
•
There is a need for strengthening the existing data on critical C input
requirement as well as for developing this type of data set for other crop
production systems in diverse soil types.
•
Quantification is required for C stabilization (%) from different types of
residues and organic manures.
•
Monitoring and verification of the rate of SOC sequestration in a transpar-
ent, cost-effective, and credible manner are also required for developing a
user-friendly carbon trading system.
•
Quantification of the country's soil CSP for land use and management sce-
narios is needed in a spatial perspective by using soil carbon models.
•
Research information is needed for the recommended land use and man-
agement practices for soil C sequestration and on the corresponding rates
under “on-farm” conditions.
•
The same relevant processes of soil C sequestration (e.g., aggregation,
humification, formation of secondary carbonates) must be identified, and
the residence time of C thus sequestered must be estimated.
•
There is a strong need for developing cost-effective, credible, transparent,
and simple methods of measuring the rate of soil C sequestration, along
with their accuracy and precision.
•
Because sustainable land use/land use change and soil management are a
net sink for C, it is important to identify and implement policy instruments
that facilitate realization of this sink.
•
Based on the data on the soil C pool in relation to tillage and cropping sys-
tems, a holistic package must be evolved for creating a positive ecosystem
C budget and a sustained and high rate of C sequestration.
ABBREVIATIONS
B:
boron
B ha:
billion hectares
C:
carbon
CRIDA:
Central Research Institute for Dryland Agriculture
CT:
conventional tillage
Cu:
copper
ET:
evapotranspiration
Fe:
iron
FYM:
farmyard manure
GDP:
gross domestic product
GHGs:
greenhouse gases
GIS:
geographical information system
GLM:
green leaf manure
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