IRRIGATION MANAGEMENT

FOR SUSTAINABLE AGRICULTURE IN BALI

Dr. I Wayan BUDIASA

Faculty of Agriculture, Udayana University

Email: wbaunud@gmail.com

Introduction A Brief Concept of Sustainable Agriculture History of Irrigation Management Policies in Indonesia Irrigation Management in Subak System Conclusion

Contents

INTRODUCTION Efficient irrigation mgt one

of Best Management Practices in supporting SA Agriculture & subak in Bali are interrelated irrigation mgt is held by the subak, and subak formation is doe to the existence of irrigated paddy field, farmers, & temple Any global issues & internal problems in the subak challenges for subak existence & SA in Bali

Land use in Bali Category of

Land use

Area (km2) Ratio (%)

Yard and housing 555.65 9.9

Wetland paddy

field

782.45 13.9

Dry land 1,047.63 18.6

Plantation 1,738.73 30.8

Forest 1,076.85 19.1

Others (swamp,

pond, sand etc

431.54 7.7

Total Provincial

Area

5,632.86 100.0

Source: The JICA Study Team, 2006

63.3%

for agricultural activities

Food Crops Agric Service of Bali Province data wetland

paddy field was decreased 85,776 ha (2000) 81,144

ha (2007) or 661.7 ha/yr

The area includes: 80,701 ha irrigated paddy field 443 ha non-irrigated paddy field

No Regency/ City

Wetland Paddy

Field (ha)

Planting Area (ha)

Planting Intensity

(%)

1 Jemberana 6,485 11,290 174.1

2 Tabanan 22,479 52,297 232.6

3 Badung 10,125 21,742 214.7

4 Gianyar 14,787 34,529 233.5

5 Klungkung 3,884 11,232 289.2

6 Bangli 2,890 8,855 306.4

7 Karangasem 7,036 20,269 288.1

8 Buleleng 10,741 26,536 228.4

9 Denpasar 2,717 6,145 226.2

Total 81,144 192,895 235.2

The use of wetland paddy field in Bali, 2007 (Food

Crops Agriculture Service of Bali Province, 2008)

Cropping

Pattern Cropping Calendar Planting Area (%)

1 2 3 4 5 6 7 8 9 10 11 12 Jem Tab Bad Gia Klu Ban Kar Bul Den

3 Crops 1.7 27.7 46.5 30.4 8.4 39.6 4.3 29.0 8.6

11.2 7.3 38.9 7.4 43.2 36.7 33.3 38.6 27.4

8.8 0.9 0.4 2.1 33.0 7.1 46.2 9.4 17.8

2 Crops 17.3 54.5 9.8 47.1 2.2 12.6 4.3 8.9 15.3

35.7 2.6 0.9 2.4 6.8 4.0 5.6 13.6 16.5

1 Crop 20.2 5.0 2.0 6.8 6.4 - 3.2 0.2 4.2

Fallow and other Crops, such as palawija, vegetables, sometime

2 cropping/year 5.1 2.0 1.5 3.8 - - 3.1 0.3 10.2

Total (%) 95 98 99 96 100 100 97 100 90

Starting Month Nov Nov* Nov Nov Nov Nov Dec Dec Nov

Cropping pattern & calendar in Bali paddy field

paddy (30 days for land preparation & 80 days from transplanting to harvesting)

palawija/vegetable (90 days)

Jem: Jemberana, Tab: Tabanan, Bad: Badung, Gia; Gianyar, Klu: Klungkung, Ban: Bangli, Kar: Karangasem, Bul: Buleleng, Den: Denpasar

The JICA Study Team, 2006

Regency Jan Feb Mar Apr May Jun Jul Aug Sep Okt Nov Dec

Jemberana 0.660 0.722 0.557 0.405 0.511 0.456 0.226 0.031 0.031 0.018 0.174 0.734

Tabanan 0.345 0.146 0.426 1.278 1.552 0.976 0.373 0.490 0.484 0.257 0.917 0.753

Badung 0.647 0.421 0.678 1.405 1.632 1.125 0.743 0.855 0.920 0.608 0.802 0.915

Gianyar 0.000 0.175

.

0.411 1.082 1.295 1.002 0.775 0.500 0.484 0.262 0.240 0.585

Klungkung 0.370 0.430 0.473 0.780 0.829 0.552 0.140 0.137 0.145 0.084 0.729 0.863

Bangli 0.000 0.278 0.305 1.136 1.270 0.969 0.648 0.649 0.630 0.308 0.498 0.607

Karangasem 0.204 0.386 0.528 0.565 0.707 0.734 0.466 0.112 0.077 0.077 0.033 0.631

Buleleng 0.565 0.445 0.655 1.078 1.293 1.283 0.933 0.546 0.556 0.563 0.329 0.728

Denpasar 0.144 0.304 0.801 0.811 0.956 0.720 0.303 0.164 0.176 0.119 0.721 1.178

Irrigation water requirement per unit area (liter/sec/ha)

Source: The JICA Study Team (2006)

Regency Year Difference

2025-2010 2010 2015 2020 2025

Jemberana 74.23 79.60 68.47 66.37 7.86

Tabanan 458.58 450.46 445.55 440.83 17.75

Badung 268.70 258.29 252.36 246.41 22.29

Gianyar 263.02 260.72 259.38 258.03 4.99

Klungkung 55.81 55.22 54.94 54.59 1.22

Bangli 55.43 55.43 55.43 55.43 0.00

Karangasem 81.23 80.13 79.51 78.82 2.41

Buleleng 253.12 249.95 248.04 246.18 6.94

Denpasar 43.03 40.93 39.65 38.39 4.64

Total 1,553.15 1,521.73 1,503.33 1,485.05 68.1

Irrigation water demand by regency (million m3)

Since climatic, farming & water mgt factors are assumed not to vary the change in paddy area

is only a factor affecting the future irrigation water demand (The JICA Study Team, 2006)

How is the irrigation managed by the subaks in

order to fulfill the irrigation water demand &

sustainable agriculture in Bali?

This paper aims to figure the characteristics & the role of subak in managing irrigation system & supporting SA in Bali

Secondary data & information from appropriate sources were used to analyze & discuss this topic

A BRIEF CONCEPT OF SUSTAINABLE AGRICULTURE

Concern about conservation and environment A critical remarks to the “Green Revolution” Defined as a holistic farming system that are economically viable, ecologically sound, socially just, and culturally and technically appropriate (SEARCA, 1995) Dixon & de Los Reyes (1990) defined sustainability as constrained optimization to maximize benefit subject to natural resource base maintenance Its success strongly depends on 2 factors: best management

practices (BMPs) in FSD & government intervention (Sugino, 2003)

One of BMPs is efficient irrigation management and a form of government intervention is

irrigation management policies

HISTORY OF IRRIGATION MANAGEMENT POLICIES IN INDONESIA

1st legal base for irrigation management Law No. 11/1974 on Water Resources Development (little attention for irr mgt) Gov Reg on Irrigation, PP No. 23 of 1982to detail the mgt & planning functions

INPRES No. 2/1984 on Guidance to Water Users Associations (WUAs) establishment in tertiary unit or village irrigation area 1st legal document Irrigation Operation & Maintenance Policy (IOMP) in 1987 to raise funding levels for O&M and improved irrigation management INPRES No. 42/1989 on System of Turnover of Small Scale Irrigation System & Management Authority to WUAs PIM PPs No. 6/1992 and No. 19/1992 by MOHA on Irrigation Service Fees/ISF to raise

revenue from the water users to provide funds for maintenance above the tertiary turnouts and place more responsibility on the farmers to care for the supply system PP No. 12/1992 on the Establishment and Development of WUAs to improve & clarify the status of WUAs; that it was really time to enforce the regulation of WUAs, one of which is the obligation to pay ISF for maintenance

After Indinesian crises (1997/1998)

Presidential Decree/INPRES No. 3/1999 five principles PP No. 77/2001 on Irrigation 4

implementing decrees : (1) Decree No. 22/2003 of the Minister of Finance, on Guidelines on task distribution for authority and responsibility of irrigation management; (2) Decree No. 50/2001 of the MOHA, on Guidelines on WUA establishment and empowerment; (3) Decree No. 529/KPT/M2001 of the Minister of Resettlement and Regional Infrastructure, on Guidelines on Irrigation management authority; and Decree No. 298/2003 of the Minister of Finance, on Guidelines on the Kabupaten Irrigation Implementation Fund. A new Water Law as UU No. 7/2004 included main elements under INPRES

3/1999 (1) Redefinition of tasks and responsibilities for irrigation management institutions; (2) Empowerment of WUAs and FWUAs; and (3) Restructuring of the financial setup of irrigation management

IRRIGATION MANAGEMENT IN SUBAK SYSTEM

“Subak is defined as customary law societies with socio-agrarian-religious nature which were established

since long time ago and developed continuously as landholding organizations in the sphere of water distribution and other for rice fields

in one irrigation area “

(Bali Province Local Regulation No. 02/PD/DPRD/1972)

Parhyangan

Pawongan

Palemahan

Three elements of subak system

Sub-system Parhyangan the

religious element: Ulun Danu Temple, Ulun Empelan Temple, Ulun Swi Temple, & Bedugul Temple), built everywhere for honoring God, & the ritual ceremonies, performed daily Sub-system Pawongan the

social element: farmers as members of the subak Sub-system Palemahan the

environment element: the rice fields, the source of the irrigation water & all the other places used by the subak members for implementing the activities related to the farming and the religious ceremonies

the human beings and God, as the creator of the world

the human beings

themselves

the human beings and

the environment

Philosophy of the Tri Hita Karana (Three happiness causes)

three harmonious relationship among:

General &

detailed rules for implementing THK are included in the subak awig-awig & perarem (bylaws)

Subak General Assembly

Head of Subak

Treasurer Secretary

Messenge

r

Heads of Sub-Subak/Tempek

Subak Members

Subak

Board

Typical Subak Organizational Structure

Main canal

SABA WEIR IRRIGATION CANAL

Four mayor components of a subak irrigation system: (1) the main structure (weir/inlet) (2) the main canal (3) the irrigation canals (4) the drainage facilities

A portion of irrigation water called tektek

Tektek is amount of water necessary for one-season irrigation

of paddy field with an area up to about 1 ha; other terms

with the same meaning are kecoran or tanding

No Sub Subak No. of Members

No. of Land

Portions (bit-

tenah)

No. of Water

Portions (tektek)

Irrigated Area (ha)

Area per tektek (ha)

1 Labak 15 29 29 9.70 0.334

2 Dugul 10 5 5 3.00 0.600

3 Abangan 30 30 30 11.79 0.393

4 Dlod Desa 20 30 30 12.20 0.407

5 Dlod Dangin 15 30 30 12.20 0.407

Total 90 124 124 48.89 0.394

Irrigation water distribution in Subak Tedung, Gianyar Regency

Subak General Assembly

Head of Subak

Secretary

Treasurer

KUAT Manager

Head and Deputy of Sub-subak/Tempek

Subak Members

Accounting Treasurer

CLS ICM ABC

Monitoring Board

Figure: Collaboration between irrigation and

business managements in implementing double roles of Subak Guama (Yadnya, 2007).

RIHN Project Team visited to KUAT Subak Guama, 2011

Conclusion

Central Gov responsible for the O&M of primary and

secondary irrigation systems (>3,000 ha), provinces (1,000 - 3,000 ha), regencyup to 1,000 ha Subaks fully responsible for village and the tertiary

level irrigation systems. But, farmers may also request assistance from the government to upgrade tertiary irrigation and drainages facilities. There are 6 cropping patterns associated with paddy & 1 pattern for other crops such as palawija/vegetables on the 81,144 ha paddy field that can used for projection of irrigation water demand Irrigation water management in Bali is held by subak based on tektek measurement Under the PIM principle subak can to play the double roles (managing irrigation system & agribusiness unit) To realize sustainable agriculture, so the irrigation system as well as agribusiness system should be efficient, environmentally sound, fairness, and applied appropriate technologies