on-line resource materials for policy making ex-ante carbon-balance tool food and agriculture...

On-line resource materials for policy making Ex-Ante Carbon-balance Tool

Food and Agriculture Organization of the United Nations, FAO

Learning how using EX-ACT – Module 8/14

How to use the Rice Module?

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This module is part of a set of power points that describes how works the EX-ACT tool.

EX-ACT (Ex-Ante Carbon-balance tool) is a tool developed by Food and Agriculture Organization of the United Nations (FAO). It is aimed at providing estimations of the mitigation impact of agriculture and forestry development projects, estimating net carbon balance from Green House Gas (GHG) emissions and carbon sequestration.

It is a land based accounting system associated with the adoption of alternative land management options (See the linked flyer of the EX-ACT tool).

The tool is developed with a modular approach, each module going to be described in such a power point.

Acknowledgement



After reading this module, you should:

understand how the rice module of EX-ACT works;

know which data are required to run the rice module;

be able to fill in the rice module by yourself.

Objectives



Main view of EX-ACT

User needs to click here



Complete view of the Rice module

Build the Rice systems* (upland Rice is treated as "Annual" Agricultural system)Cultivation Water Regime Organic Amendment type (Straw or other) Default IPCC calculation Straw

period During the cultivation Period Before the cultivation period rate kg CH4 kg CH4 BurntYour description (Days) need help tonne per ha/day per ha t CO2 eq

Reserved system R1 from Deforestation 180 5.5 1.30 234.0 0.34 Combustion Reserved system R2 converted to A/R 180 5.5 1.30 234.0 0.00 % released CH4 N2OReserved system R3 from OLUC 180 5.5 1.30 234.0 0.00 of prefire dm kg GES / tonne dmReserved system R4 Converted to OLUC 180 5.5 1.30 234.0 0.00 0.8 2.7 0.07Rice1 180 5.5 0.88 159.1 0.34Rice2 180 5.5 0.88 159.1 0.00Rice3 150 5.5 0.84 126.0 0.00 Dynamic FactorsRice4 150 5.5 0.69 104.0 0.00 Immediate 1Rice5 150 5.5 3.02 452.5 0.00 Exponential 0.78Rice6 150 5.5 0.35 52.7 0.34 Linear 0.5Rice7 150 5.5 0.72 108.0 0.00Rice8 150 5.5 2.01 301.8 0.00Rice9 150 5.5 1.30 195.0 0.34Rice10 150 5.5 0.24 35.8 0.00* usefull information can be obtained at www.irri.org/science/ricestat and faostat.fao.orge.g. Rice crop calendar by country: http://www.irri.org/science/ricestat/data/may2008/WRS2008-AppendixTable04.pdf

Areas (ha) of the different options CH4 emitted (tCO2eq) Straw burning Total DifferenceStart

Type t0 EndSystem R1 0 0 Linear 0 Linear 0 0 0 0 0 0System R2 0 0 Linear 0 Linear 0 0 0 0 0 0System R3 0 0 Linear 0 Linear 0 0 0 0 0 0

Rice1 0 0 Linear 0 Linear 0 0 0 0 0 0Rice2 0 0 Linear 0 Linear 0 0 0 0 0 0Rice3 0 0 Linear 0 Linear 0 0 0 0 0 0Rice4 0 0 Linear 0 Linear 0 0 0 0 0 0Rice5 0 0 Linear 0 Linear 0 0 0 0 0 0Rice6 0 0 Linear 0 Linear 0 0 0 0 0 0Rice7 0 0 Linear 0 Linear 0 0 0 0 0 0Rice8 0 0 Linear 0 Linear 0 0 0 0 0 0Rice9 0 0 Linear 0 Linear 0 0 0 0 0 0

Rainfed and deep water Straw exportedNon flooded preseason >180 days

Irrigated - Continuously floodedIrrigated - Continuously floodedIrrigated - Intermittently floodedIrrigated - Intermittently floodedIrrigated - Intermittently floodedRainfed and deep waterRainfed and deep water

Non flooded preseason <180 daysIrrigated - Continuously flooded

Flooded preseason (>30 days)Non flooded preseason <180 daysNon flooded preseason >180 days

Flooded preseason (>30 days)Rainfed and deep water

Straw burntStraw exported

CompostFarm yard manure

Green manureStraw burnt

Straw incorporated shortly (<30d) before cultivation)

Straw burntStraw incorporated shortly (<30d) before cultivation)

Non flooded preseason >180 daysNon flooded preseason >180 daysNon flooded preseason <180 daysNon flooded preseason >180 days

Irrigated - Continuously flooded Non flooded preseason <180 days Straw burntIrrigated - Continuously flooded Non flooded preseason <180 days Straw exportedIrrigated - Continuously flooded Non flooded preseason <180 days Straw exportedIrrigated - Continuously flooded Non flooded preseason <180 days Straw exported

Cultivation Water Regime Organic Amendment type (Straw or other) Default IPCC calculation Strawperiod During the cultivation Period Before the cultivation period rate kg CH4 kg CH4 Burnt

Rice1 180 5.5 0.88 159.1 0.34Rice2 180 5.5 0.88 159.1 0.00Rice3 150 5.5 0.84 126.0 0.00 Dynamic FactorsRice4 150 5.5 0.69 104.0 0.00 Immediate 1Rice5 150 5.5 3.02 452.5 0.00 Exponential 0.78Rice6 150 5.5 0.35 52.7 0.34 Linear 0.5Rice7 150 5.5 0.72 108.0 0.00Rice8 150 5.5 2.01 301.8 0.00Rice9 150 5.5 1.30 195.0 0.34

* usefull information can be obtained at www.irri.org/science/ricestat and faostat.fao.orge.g. Rice crop calendar by country: http://www.irri.org/science/ricestat/data/may2008/WRS2008-AppendixTable04.pdf

CH4 emission from rice systems Change over the periodAreas (ha) of the different options CH4 emitted (tCO2eq) Straw burning Total Difference

Start Without Project With Project All period t CO2 eq t CO2 eq tCO2eqType t0 End Rate End Rate Without With Without With Without WithSystem R1 0 0 Linear 0 Linear 0 0 0 0 0 0 0System R2 0 0 Linear 0 Linear 0 0 0 0 0 0 0System R3 0 0 Linear 0 Linear 0 0 0 0 0 0 0System R4 0 0 Linear 0 Linear 0 0 0 0 0 0 0Rice1 0 0 Linear 0 Linear 0 0 0 0 0 0 0Rice2 0 0 Linear 0 Linear 0 0 0 0 0 0 0Rice3 0 0 Linear 0 Linear 0 0 0 0 0 0 0Rice4 0 0 Linear 0 Linear 0 0 0 0 0 0 0Rice5 0 0 Linear 0 Linear 0 0 0 0 0 0 0Rice6 0 0 Linear 0 Linear 0 0 0 0 0 0 0Rice7 0 0 Linear 0 Linear 0 0 0 0 0 0 0Rice8 0 0 Linear 0 Linear 0 0 0 0 0 0 0Rice9 0 0 Linear 0 Linear 0 0 0 0 0 0 0Rice10 0 0 Linear 0 Linear 0 0 0 0 0 0 0Total Systems 1-10 0 0 0

Total 0.0 0.0 0.0



























Total 0.0 0.0 0.0

Simplest approach by default (Tier-1) Approach with more detailed information (Tier-2)

2 possible approaches:

1 2 3

4

1 2

3



























Total 0.0 0.0 0.0

All other information corresponds to default values…

…or intermediary calculations

Simplest approach by default (Tier-1) Approach with more detailed information (Tier-2)

Only few information to fill in


























Total 0.0 0.0 0.0

Explanations step by step...

1



Cultivation Water Regime Organic Amendment type (Straw or other)period During the cultivation Period Before the cultivation period rate

Your description (Days) need help tonneReserved system R1 from Deforestation 180 5.5Reserved system R2 converted to A/R 180 5.5Reserved system R3 from OLUC 180 5.5Reserved system R4 Converted to OLUC 180 5.5Rice1 180 5.5Rice2 180 5.5Rice3 150 5.5Rice4 150 5.5Rice5 150 5.5Rice6 150 5.5Rice7 150 5.5Rice8 150 5.5Rice9 150 5.5Rice10 150 5.5Rainfed and deep water Non flooded preseason >180 days






Irrigated - Continuously flooded Non flooded preseason <180 daysIrrigated - Continuously flooded Non flooded preseason <180 daysIrrigated - Continuously flooded Non flooded preseason <180 daysIrrigated - Continuously flooded Non flooded preseason <180 days






Total 0.0 0.0 0.0


















Total 0.0 0.0 0.0


















Total 0.0 0.0 0.0


















Total 0.0 0.0 0.0













Step by step... 1/5

Definition of the rice systems

Here are the proposed description for the rice that come from conversion of other land uses

The user can give a short description of the rice systems in place that will be

considered

Corresponding names used in the

module
















Total 0.0 0.0 0.0


















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Step by step... 1/5


User informs the duration of the cultivation period
















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Step by step... 1/5


User informs the water regime during and before the cultivation period

User choses between the following water regimes :
















Total 0.0 0.0 0.0


















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Total 0.0 0.0 0.0


















Total 0.0 0.0 0.0













Step by step... 1/5


If the user needs help, he can click here :

This help will appear


























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2








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Total 0.0 0.0 0.0


















Total 0.0 0.0 0.0













Step by step... 2/5

Definition of the organic management

User has the choice between the following proposals:

Organic Amendment type (Straw or other)rate

tonne5.55.55.55.55.55.55.55.55.55.55.55.55.55.5Straw exported






Straw burntStraw exportedStraw exportedStraw exported

here user indicates the rate of organic amendment applied per

hectare


























Total 0.0 0.0 0.0


3








Total 0.0 0.0 0.0


















Total 0.0 0.0 0.0


















Total 0.0 0.0 0.0


















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Step by step... 3/5

Corresponding coefficients

This table reports the corresponding coefficients used for GHG emissions and some calculations made by the

model

Default IPCC calculation Strawkg CH4 kg CH4 Burnt

per ha/day per ha t CO2 eq1.30 234.0 0.341.30 234.0 0.001.30 234.0 0.001.30 234.0 0.000.88 159.1 0.340.88 159.1 0.000.84 126.0 0.000.69 104.0 0.003.02 452.5 0.000.35 52.7 0.340.72 108.0 0.002.01 301.8 0.001.30 195.0 0.340.24 35.8 0.00


























Total 0.0 0.0 0.0


4



CH4 emission from rice systemsAreas (ha) of the different options

Start Without Project With ProjectType t0 End Rate End RateSystem R1 0 0 Linear 0 LinearSystem R2 0 0 Linear 0 LinearSystem R3 0 0 Linear 0 LinearSystem R4 0 0 Linear 0 LinearRice1 0 0 Linear 0 LinearRice2 0 0 Linear 0 LinearRice3 0 0 Linear 0 LinearRice4 0 0 Linear 0 LinearRice5 0 0 Linear 0 LinearRice6 0 0 Linear 0 LinearRice7 0 0 Linear 0 LinearRice8 0 0 Linear 0 LinearRice9 0 0 Linear 0 LinearRice10 0 0 Linear 0 LinearTotal Systems 1-10 0 0 0






Total 0.0 0.0 0.0


















Total 0.0 0.0 0.0


















Total 0.0 0.0 0.0


















Total 0.0 0.0 0.0













Step by step... 4/5

Surface involved

User informs the surface involved

at start, in the future with and without project

By default, the adoption of practices is considered as linear. Yet the user can choose between a linear/immediate/exponential dynamic


























Total 0.0 0.0 0.0


5



Change over the periodCH4 emitted (tCO2eq) Straw burning Total DifferenceAll period t CO2 eq t CO2 eq tCO2eq

Without With Without With Without With0 0 0 0 0 0 00 0 0 0 0 0 00 0 0 0 0 0 00 0 0 0 0 0 00 0 0 0 0 0 00 0 0 0 0 0 00 0 0 0 0 0 00 0 0 0 0 0 00 0 0 0 0 0 00 0 0 0 0 0 00 0 0 0 0 0 00 0 0 0 0 0 00 0 0 0 0 0 00 0 0 0 0 0 0

Total 0.0 0.0 0.0






Total 0.0 0.0 0.0


















Total 0.0 0.0 0.0


















Total 0.0 0.0 0.0


















Total 0.0 0.0 0.0













Step by step... 5/5

Corresponding GHG emissions

This table reports the different emissions

calculated by the model

Here is the carbon balance of the rice module



How filling it...Now you know everything about the Rice module...

…See the other modules!



Glossary


Global warming potential (GWP) is a measure of how much a given mass of greenhouse gas is estimated to contribute to global warming. It is a relative scale which compares the gas in question to that of the same mass of carbon dioxide (whose GWP is by definition 1)

Emission factor: normalized coefficient that allows for calculating the emission fluxes of GHG

Carbon sink: system that absorb naturally a part of the CO2 emitted in the atmosphere and store carbon during a more or less long term

Carbon balance: should be considered, for a specific project (or scenario of action) in comparison with a reference, as the net balance of all GHG emissions expressed in CO2 equivalent (sources and sinks) with the atmosphere interface and the net change in C stocks (biomass, soil…).

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