Survey on irrigation

Period: Annual
Year: 2020

01. Contact
02. Metadata update
03. Statistical presentation
04. Unit of measure
05. Reference Period
06. Institutional Mandate
07. Confidentiality
08. Release policy
09. Frequency of dissemination
10. Accessibility and clarity
11. Quality management
12. Relevance
13. Accuracy and reliability
14. Timeliness and punctuality
15. Coherence and comparability
16. Cost and Burden
17. Data revision
18. Statistical processing
19. Comment

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01. ContactTop
01.1. Contact organisation

Statistical Office of the Republic of Serbia

01.2. Contact organisation unit

Enviromental statistics and accounts division

01.3. Contact name

Gordana Isailović

01.4. Contact person function


01.5. Contact mail address

5 Milana Rakića, Belgrade

01.6. Contact email address

01.7. Contact phone number

00381 11 3087 001

01.8. Contact fax number

Not applicable.

02. Metadata updateTop
02.1. Metadata last certified
02.2. Metadata last posted
02.3. Metadata last update

03. Statistical presentationTop
03.1. Data description

Irrigation research collects data on:

  • irrigation water by type of water abstraction;
  • irrigation water used and losses;
  • irrigated areas by type of irrigation
03.2. Classification system
  • Code list of watercourses
  • Classification of Activities
  • Regulation on Nomenclature of Statistical territorial Units (“Official Gazette of RS”, No 109/09 and 46/10)


03.3. Coverage - sector

Survey includes according to Classification of Activities (CA 2010) section Agriculture, forestry and fishing.

03.4. Statistical concepts and definitions

River basin is a river with all its tributaries if they are not counted as a separate basin.

Underground water relates to water stocks beneath the land surface.

Surface water refers to all running or stagnant waters on the surface of the Earth found in streams, rivers (watercourses), lakes, accumulations, etc, as well as in artificial waterways for the purpose of irrigation, creation of navigation canals, etc.

Self supply is abstraction of water by the user for own final use.

Used water involves all water quantities that have been used for irrigation, by the reporting units and during the reporting year. 

Utilized agricultural area is land area utilized for agricultural production. Utilized agricultural area includes arable land and kitchen gardens, orchards, vineyards, meadows and pastures.

Irrigated area is presented as area totally or partly irrigated in the reporting year. It often happens that areas equipped with irrigation devices are not irrigated due to versatile reasons, such as: shortage of water, absence of farmers, land degradation, damages, organizational problems, etc.

Irrigation refers to construction, use and maintenance of facilities and devices applied for timely and continuous bringing of water to agricultural land, aiming at providing high and constant yields of agricultural crops. 

Surface irrigation is a melioration method when water from the source moves over and across agricultural area, by simple gravity flow, in order to wet it and to infiltrate into soil.

Sprinkling is an irrigation method when water is via pipelines piped from the source to sown areas where it is distributed by overhead high-pressure sprinklers.     

      Drop-by-drop is method of localized irrigation when water is via pipelines piped to each particular plant at the position of roots, either from the   surface or directly via the network of pipes, valves and drippers.

03.5. Statistical unit

Statistical units of observation are business entities and agricultural cooperatives engaged in agricultural production and services in agriculture and / or operating irrigation systems, ie. the activity of which is the use of water for agriculture, defined by the Classification of activities in the sector Agriculture, Forestry and Fisheries, area 01 - Agricultural production, hunting and service activities, as well as local irrigation units whose activity does not belong to the specified field

03.6. Statistical population

The survey covers observation units that are engaged in exploitation of water for agriculture in the entire territory of the Republic of Serbia.

03.7. Reference area

The data are representative for the territory of the Republic of Serbia. Starting from 1999 the Statistical Office of the Republic of Serbia has not at disposal and may not provide available certain data relative to AP Kosovo and Metohija and therefore these data are not included in the coverage for the Republic of Serbia (total).


03.8. Coverage - Time


03.9. Base period

Not applicable.

04. Unit of measureTop
04. Unit of measure

m3, ha, l/s, km

05. Reference PeriodTop
05. Reference Period

Calendar year.

06. Institutional MandateTop
06.1. Institutional Mandate - legal acts and other agreements

National legislation:

- Official Statistics Law
- Resolution on the Programme of official statistics
- Regulation on the Plan of official statistics for the current year
* The above documents are available at SORS website:


06.2. Institutional Mandate - data sharing

Data are sended to Eurostat every year, and these data are published in Eurostat´s data base. 

FAO – Agricultural resources – Land use and irrigation questionnaire, annually

07. Confidentiality Top
07.1. Confidentiality - policy

Data confidentiality is stipulated by:

- Official Statistics Law (Official Gazette of RS, number 104/2009), Articles 44, 45, 46, 47, 48, and 49.


- Rulebook on statistical data protection in the Statistical Office of the Republic of Serbia


- Guidelines on measures of data and information protection in the Statistical Office of the Republic of Serbia

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07.2. Confidentiality - data treatment

Data are published at the aggregated level.

08. Release policyTop
08.1. Release calendar

Calendar of releases is available at SORS website on the 1st day of December every year for the forthcoming year (

 All SORS releases are launched at 12.00.
 Any divergence from the defined time schedule are announced in advance and explained in the Calendar.  


08.2. Release calendar access

Calendar of releases is available at SORS website:


08.3. Release policy - user access

The data obtained through statistical surveys are released at the internet presentation (,

   in statistical releases and publications ( 
   The results of official statistics are available at the same time to all users on impartial basis; any privileged access by external users before their release is not allowed.  


09. Frequency of disseminationTop
09. Frequency of dissemination


10. Accessibility and clarityTop
10.1. Dissemination format - News release

Not applicable.

10.2. Dissemination format - Publications
  • Statistical Yearbook
  • Statistical Pocket-book
  • Eco-bulletin
  • Statistical Release, ZS20 – Irrigation
  • Website:
10.3. Dissemination format - online database

The data are available in the database of the Statistical Office of the Republic of Serbia, Division Environment, the subdivision Water.

10.4. Dissemination format - microdata access

Not applicable.

10.5. Dissemination format - other

Not applicable.

10.6. Documentation on methodology

On the web site of the Statistical Office of the Republic of Seriba short methodology is available for Survey on irrigation.

10.7. Quality management - documentation

SORS describe the sources and methods in the quality report and metadata. A summary of the quality information аt the country level is available on SORS web page (QMC- quality management system).

11. Quality managementTop
11.1. Quality assurance

The SORS quality management system is relied on the Serbian official statistics mission and vision, as well as on the European Statistics Code of Practice – CoP and the Total Quality Management – TQM principles, which together make the common quality framework of the European Statistical System (ESS).

For more information, please see the documents at


11.2. Quality management - assessment

The questionnaire is filled in complying with all the recommendations and guidelines given in the Filling Instruction. All data are obtained from the statistical reports that the business entities submit to the Statistical Office of the Republic of Serbia. After detailed analysis and verification, these data can be considered valid and reliable.

12. Relevance Top
12.1. User needs

The main users of the statistical surveys on Urban wastewater are:

- National users: Ministry of Agriculture and environmental protection, industrial and business associations, environmental associations, NGO's, local     municipalities.

   - International users: Eurostat, UN, European Agency for environmental protection.

12.2. User satisfaction

On biennial basis (every years), by the means of web interview, implemented is the User Satisfaction Survey. The survey results are available at SORS website:


12.3. Completeness

Not applicable.

13. Accuracy and reliabilityTop
13.1. Overall accuracy

The overall accuracy is good. Response rate of the survey on irrigation is 75%.

13.2. Sampling error

Not applicable.

13.3. Non-sampling error

Not applicable.

14. Timeliness and punctualityTop
14.1. Timeliness

The data are available in the first month of the end of the reporting year.

14.2. Punctuality

Preliminary data are published in accordance with the deadline given in the Regulation on the Plan of official statistics. Final data are published in accordance with the terms announced in the Regulation on the Plan of official statistics and the Release Calendar.

15. Coherence and comparabilityTop
15.1. Comparability - geographical

The application of concepts and definitions from the methodology enables geographical comparability with the data of EU countries.

15.2. Comparability - over time

The time series has been available since 2000 without time brake.

15.3. Coherence - cross domain

Not applicable.

15.4. Coherence - internal

Not applicable.

16. Cost and BurdenTop
16. Cost and Burden

Not applicable.

17. Data revisionTop
17.1. Data revision - policy

The SORS general revision policy constitutes the global frame ensuring that each statistical domain shall define its own revision policy in compliance with its specific nature. 

The general SORS revision policy determines:
- general rules of revisions of the published data,
- forms of informing users as regards the possible causes of revisions,
- categories of revisions, and
- documents covering all aspects of revisions.
The general SORS revision policy is available at


17.2. Data revision - practice

The published data should be regarded as final, unless otherwise stated. Corrections and revisions might occur.

18. Statistical processingTop
18.1. Source data

Тhe source of data is a statistical survey on irrigation. 

A methodological instrument is used for carrying out the survey :

Questionnaire  - Annual survey on irrigation (VOD-4).

18.2. Frequency of data collection

Data are collected annualy. 

18.3. Data collection

Data collection is done by the reporting method, meaning that the reporting unit uses its available documentation.The competent person fills web or paper questionnaires requested data in the first quarter of the current year for the current year. If related records are non-existent for certain data, competent persons will make an evaluation. The reporting unit forwards the questionnaire to the relevant statistical authority on which territory its head office is located within the deadline set up in the annual plan.

18.4. Data validation

Validation of data is done during the entire data processing from input to final results.

18.5. Data compilation

Not applicable.

18.6. Adjustment

Not applicable.

19. CommentTop