Establishinｇ a Database on Greenhouse Gas Emission Factors Meeting Report : Annex2

Database on Methane
Emissions from Rice Fields(IRRI-UNDP Methane Project)
Leandro BuendiaContents■ where and how data are collected(replicability)■ emission patterns (QA/QC)■ controlling factors associated with EF(data to store)■ conclusion & recommendation1

Establishinｇ a Database on Greenhouse Gas Emission Factors Meeting Report : Annex22

Establishinｇ a Database on Greenhouse Gas Emission Factors Meeting Report : Annex2

Irrigated Rice3

Establishinｇ a Database on Greenhouse Gas Emission Factors Meeting Report : Annex2

Rainfed Rice

Deepwater Rice

4

Establishinｇ a Database on Greenhouse Gas Emission Factors Meeting Report : Annex2

Different ManagementPractices■ water management■ organic and inorganic amendments■ cultivar■ crop establishment

Diel Pattern of Methane Emission
Diel Pattern CH4 Emission

024681012Time, hour

51416182022

Establishinｇ a Database on Greenhouse Gas Emission Factors Meeting Report : Annex2

Seasonal pattern of CH4 Emission as affectedby C input
100

1600
140090With pig manure
Without pig manure

80

12007010006050800

40600

30400
20200

10000102030405060708090100

Days After Planting

Seasonal pattern of CH4 Emission as affectedby water management
900
800

Methane Emission, mg/m2/d700
600
500
400
300
200
10004142434445464

74

84

Days After Planting

694104114124

Establishinｇ a Database on Greenhouse Gas Emission Factors Meeting Report : Annex2

Seasonal pattern of CH4 Emission as affectedby cultivars
180
Modern japonica (Zhongzhuo 93)
Japonica hybrid (Jingyou)
Tall japonica (Zhonghua)
Modern indica (IR72)

14012010080604020021314151

61728292102112

122

Days After Planting

142128354249
Day58sAfterIncubati
on65727798693100

Tanghai2
Hangzhong

7Tanghai1

3Fengrun3

Effect of soil type

Fengrun2

11Beijing

0Fengrun1

Methane Emission, mg/m2/d160

132

142

Establishinｇ a Database on Greenhouse Gas Emission Factors Meeting Report : Annex2

Seasonal CH4 emission (kg/ha); pure NPK + local irrigation

DS = 26 (10)ES= 92 (4)SS= 167 (5)LS = 142 (5)DS = 145 (14)
WS= 272 (13)DW = 113 (15)IRRIGATED:DS = 163 (5)WS = 132 (10)RAINFED:DS = 50 (6)WS = 81 (11)8

Establishinｇ a Database on Greenhouse Gas Emission Factors Meeting Report : Annex2

Table 4-9 (IPCC Guidelines)
Representative Methane Emissions from Rice Paddy Fields in Various
Locations of the WorldCountry

Range of CH4
flux(mg/m2/hr)

Season total(g/m2)

Experimental
Treatment

Beijing

14.6-48.9

27-91

OM, WM

Beijing

1.9-48.9

5.3-100.9

6.9-50.6

14-82

2.7-7.2
18.0-27.1

7-19
31-47

CUMF, OM

Japan

Hangzhou,ZhejiangCuttack, Orissa
Taman Bogo,
Lampung
Ryugasaki

MF, OM, ST,
WM
MF, OM, SE

2.8-15.4

11-28

MF, OM

Philippines

Los Banos

0.8-18.5

2-42

MF, OM

ThailandAyutthaya

3.3-7.9

13-20

CU, OM,WM

USA

Crowley,Louisiana

12.6-85.0

22-149MF, OM, SE

China

India
Indonesia

Location

Reference

Chen et al.,1993
Shao, 1993
Wassmann etal., 1993a
Mitra, 1992
Nugroho et al.,
1994a
Yagi andMinami, 1990a
Neue et al.,1994
Siriratpiraya,
1990
Lindau andBollich, 1993

Conclusion and Recommendations
Reference- name of journal- authors- date published- title of article

country
location- name- latitude- longitude- soil type- ecosystem

Brief descriptionof methods

EF- equipment- sampling strategy

institute

Experimental
treatmentseason- water management- amendments- cultivar

9

Unit ofmeasurement

Establishinｇ a Database on Greenhouse Gas Emission Factors Meeting Report : Annex2

References■ Intergovernmental Panel on Climate

Change (1997) Revised 1996 IPCC
Guidelines for National Greenhouse Gas
Inventories, J.T. Houghton et al.
IPCC/OECD/IEA, Paris, France.

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