Census of Agriculture 2002
Philippines, 2003
Created on
Apr 25, 2019
Last modified
Apr 25, 2019
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Identification
Survey ID Number
PHL_2002_AgC_v01_M
Title
Census of Agriculture 2002
Country
| Name | Country code |
|---|---|
| Philippines | PHL |
Study type
Agricultural Census [ag/census]
Series Information
The 2002 Census of Agriculture (AgC 2002) is the fifth of a series of decennial census on agriculture conducted in the Philippines. It was conducted in March 2003 with 2002 as the reference period. The concepts and definitions, scope, and coverage of the 1960, 1971, 1980, 1991 and 2002 censuses of agriculture were basically the same. However, there were some differences in the definition of farm, reference periods and sampling design which should be taken into account when comparing the data across the census years.
The comparison of CA 2002 with previous censuses of agriculture can be seen in the Technical Documents ( (I-10 Comparison).
The comparison of CA 2002 with previous censuses of agriculture can be seen in the Technical Documents ( (I-10 Comparison).
Abstract
The 2002 Census of Agriculture (CA 2002) is a large-scale government operation geared towards the collection and compilation of statistics in the agriculture sector of the country. The collected data will constitute the bases from which policymakers and planners will formulate plans for the country's development.
The following were the objectives of CA 2002:
1. To determine the structure and characteristics of agricultural holdings;
2. To determine the number and distribution of households and enterprises engaged in agriculture and to gather information on the operation of these households and enterprises;
3. To provide the basis for sampling frame for other statistical undertakings; and
4. To provide basic data for use in national as well as sub-national development planning.
Specifically, it aims to:
1. obtain comprehensive data on farm characterisitcs such as size, location, tenure status, irrigation system, crops planted, livestock/poultry raised, etc.;
2. determine the type and number of equipment, machineries and facilities used in the operation of agricultural activities whether owned or rented; and
3. provide benchmarks for the various statistical series which are designed to measure progress in agriculture.
The following were the objectives of CA 2002:
1. To determine the structure and characteristics of agricultural holdings;
2. To determine the number and distribution of households and enterprises engaged in agriculture and to gather information on the operation of these households and enterprises;
3. To provide the basis for sampling frame for other statistical undertakings; and
4. To provide basic data for use in national as well as sub-national development planning.
Specifically, it aims to:
1. obtain comprehensive data on farm characterisitcs such as size, location, tenure status, irrigation system, crops planted, livestock/poultry raised, etc.;
2. determine the type and number of equipment, machineries and facilities used in the operation of agricultural activities whether owned or rented; and
3. provide benchmarks for the various statistical series which are designed to measure progress in agriculture.
Kind of Data
Census/enumeration data [cen]
Unit of Analysis
Households
Agricultural Operators
Agricultural Establishments
Agricultural Operators
Agricultural Establishments
Version
Version Description
v01_M: PUF data, for internal use only
Version Date
2005-04-29
Scope
Notes
a. Holding Identification
b. Characteristics of the Operator/Hired Manager
c. Legal Status of the Holder
d. Characteristics of the Holding
e. Crops
f. Livestock and Poultry
g. Equipment, Machineries, Facilities and Other Farm Tools
h. Selected Agricultural Activities
i. Demographic Characteristcs of Household Members
b. Characteristics of the Operator/Hired Manager
c. Legal Status of the Holder
d. Characteristics of the Holding
e. Crops
f. Livestock and Poultry
g. Equipment, Machineries, Facilities and Other Farm Tools
h. Selected Agricultural Activities
i. Demographic Characteristcs of Household Members
Topics
| Topic | Vocabulary | URI |
|---|---|---|
| censuses [14.1] | CESSDA | http://www.nesstar.org/rdf/common |
| Agriculture & Rural Development | World Bank |
Coverage
Geographic Coverage
National
Regional
Provincial
Regional
Provincial
Universe
The census covered all households, agricultural operators, and agricultural establishments
Producers and sponsors
Primary investigators
| Name | Affiliation |
|---|---|
| National Statistics Office | National Economic and Development Authority |
Producers
| Name | Affiliation | Role |
|---|---|---|
| Bureau of Agricultural Statistics | Department of Agriculture | Member, Task Force on 2002 CAF; served as trainer during field trainings; and acted as Census Area Supervisor during enumeration |
Funding Agency/Sponsor
| Name | Abbreviation |
|---|---|
| Government of the Philippines | GOP |
Other Identifications/Acknowledgments
| Name | Affiliation | Role |
|---|---|---|
| Department of Agriculture | Vice Chair, Task Force on 2002 CAF | |
| Bureau of Fisheries and Aquatic Resources | Department of Agriculture | Member, Task Force on 2002 CAF |
| Department of Agrarian Reform | Member, Task Force on 2002 CAF | |
| Department of Budget and Management | Member, Task Force on 2002 CAF | |
| Department of Environment and Natural Resources | Member, Task Force on 2002 CAF | |
| Department of Labor and Employment | Member, Task Force on 2002 CAF | |
| National Economic and Development Authority | Member, Task Force on 2002 CAF | |
| National Statistical Coordination Board | Member, Task Force on 2002 CAF | |
| Statisticial Research and Training Center | Member, Task Force on 2002 CAF | |
| University of the Philippines at Los Banos | Member, Task Force on 2002 CAF | |
| Union of Local Authorities of the Philippines | Member, Task Force on 2002 CAF | |
| Representative from Farmer's Group | Member, Task Force on 2002 CAF | |
| Philippine Chamber of Commerce and Industries | Member, Task Force on 2002 CAF |
Sampling
Sampling Procedure
The CA 2002 adopted a one-stage stratified systematic sampling design where selection of sample barangays was done by city/muncipality (by district for the National Capital Region or NCR) and by stratum. However, for the provinces of Laguna, Isabela, Bukidnon, and Batanes, a full sample-census was adopted.
SAMPLING UNITS AND SAMPLING FRAME
Except for the cities/municipalities of the full-sample barangays, all cities/municipalities (6 districts for NCR) were treated as domains and the barangays as the ultimate sampling units. The six districts of NCR are as follows:
NCR I - Manila;
NCR II - Quezon City;
NCR III - San Juan, Cities of Mandaluyong, Marikina and Pasig;
NCR IV - Malabon, Navotas, Cities of Kalookan and Valenzuela;
NCR V - Pateros, Taguig and Makati City; and
NCR VI - Cities of Pasay, Las Piñas, Muntinlupa, Parañaque
The sampling frame was based on the list of barangays taken from the results of the 2000 Census of Population and Housing (Census 2000) as of June 2002.
STRATIFICATION
In each domain, all barangays were grouped into three strata, as follows:
Stratum 1 - Barangays with the largest total farm area (TFA) in the municipality based on the 1991 Census of Agriculture and fisheries (CAF)
Stratum 2 - All other sample barangays of the 1991 CAF
Stratum 3 - All other barangays in the sampling frame
The 1991 sample barangays in each domain were ranked by descending values of TFA. The barangays with the largest TFA in 1991, referred to as the certainty barangays, were included in Stratum 1. In cases where the certainty barangay was split into two or more barangays as a result of the creation of a new barangay (as of June 2002 masterlist of barangays), the new barangay was also treated as a certainty barangay. Sample barangays of the 1991 CAF not included in Stratum 1 were assigned in Stratum 2. Barangays with no TFA because they were not samples during the 1991 CAF were arranged in ascending order of the total number of households based on Census 2000. These barangays were assigned in Stratum 3.
SAMPLE SELECTION
All barangays in Stratum 1 were automatically taken as samples. Sample barangays in Strata 2 and 3 were systematically selected using a 25-percent sampling rate, except for NCR. The sampling rates for NCR were 50 percent and 10 percent for Stratum 2 and Stratum 3, respectively. In each sampled barangay, all households were covered.
All agricultural establishments identified in the 2002 List of Establishments, whether or not located in the sample barangays of CA 2002, and new agricultural establishments in the sample barangays during the enumeration of CA 2002, were enumerated.
ALLOCATION OF SAMPLE BARANGAYS BY REGION
The allocation of sample barangays by region can be seen in the Technical Documents (I-11-1 Sample Barangays)
SAMPLING UNITS AND SAMPLING FRAME
Except for the cities/municipalities of the full-sample barangays, all cities/municipalities (6 districts for NCR) were treated as domains and the barangays as the ultimate sampling units. The six districts of NCR are as follows:
NCR I - Manila;
NCR II - Quezon City;
NCR III - San Juan, Cities of Mandaluyong, Marikina and Pasig;
NCR IV - Malabon, Navotas, Cities of Kalookan and Valenzuela;
NCR V - Pateros, Taguig and Makati City; and
NCR VI - Cities of Pasay, Las Piñas, Muntinlupa, Parañaque
The sampling frame was based on the list of barangays taken from the results of the 2000 Census of Population and Housing (Census 2000) as of June 2002.
STRATIFICATION
In each domain, all barangays were grouped into three strata, as follows:
Stratum 1 - Barangays with the largest total farm area (TFA) in the municipality based on the 1991 Census of Agriculture and fisheries (CAF)
Stratum 2 - All other sample barangays of the 1991 CAF
Stratum 3 - All other barangays in the sampling frame
The 1991 sample barangays in each domain were ranked by descending values of TFA. The barangays with the largest TFA in 1991, referred to as the certainty barangays, were included in Stratum 1. In cases where the certainty barangay was split into two or more barangays as a result of the creation of a new barangay (as of June 2002 masterlist of barangays), the new barangay was also treated as a certainty barangay. Sample barangays of the 1991 CAF not included in Stratum 1 were assigned in Stratum 2. Barangays with no TFA because they were not samples during the 1991 CAF were arranged in ascending order of the total number of households based on Census 2000. These barangays were assigned in Stratum 3.
SAMPLE SELECTION
All barangays in Stratum 1 were automatically taken as samples. Sample barangays in Strata 2 and 3 were systematically selected using a 25-percent sampling rate, except for NCR. The sampling rates for NCR were 50 percent and 10 percent for Stratum 2 and Stratum 3, respectively. In each sampled barangay, all households were covered.
All agricultural establishments identified in the 2002 List of Establishments, whether or not located in the sample barangays of CA 2002, and new agricultural establishments in the sample barangays during the enumeration of CA 2002, were enumerated.
ALLOCATION OF SAMPLE BARANGAYS BY REGION
The allocation of sample barangays by region can be seen in the Technical Documents (I-11-1 Sample Barangays)
Response Rate
N/A
Weighting
The estimation procedure is in the Technical Documents (I-11-3 Estimation).
Data Collection
Dates of Data Collection
| Start | End |
|---|---|
| 2003-03-03 | 2003-04-05 |
Time periods
| Start date | End date |
|---|---|
| 2002-01-01 | 2002-12-01 |
Data Collection Mode
Face-to-face [f2f]
Supervision
Face to face interview was conducted by the Enumerators (ENs). One enumeration area was covered by one EN. The Team Supervisors (TSs) are responsible in supervising the ENs and the Census Area Supervisors (CASs) supervise the TSs. The ratios of EN to TS and TS to CAS are as follows:
Ratio of ENs to TSs
1-4 to 0 (Census Area Supervisor will act as TS)
5-9 to 1
10-14 to 2
15-19 to 3
20-24 to 4
25-29 to 5
Ratio of TSs to CASs
1 to 0
2-7 to 1
8-14 to 2
15-21 to 3
22-28 to 4
29-35 to 5
Ratio of ENs to TSs
1-4 to 0 (Census Area Supervisor will act as TS)
5-9 to 1
10-14 to 2
15-19 to 3
20-24 to 4
25-29 to 5
Ratio of TSs to CASs
1 to 0
2-7 to 1
8-14 to 2
15-21 to 3
22-28 to 4
29-35 to 5
Data Collection Notes
PRETEST
Eight pretests were done primarily to test correctness and clarity of questions. Refer to Pretest Reports in the Technical Documents.
PILOT CENSUS
Pilot census is a simulation of the actual census to determine problems that may arise during the actual census. Refer to Pilot Report in the Technical Documents.
NUMBER OF ENUMERATORS, TEAM SUPEVISORS, AND CENSUS AREA SUPERVISORS
A total of about 19,500 enumerators, 4,000 Team Supervisors and 1,700 Census Area Supervisors were hired. Refer to Workload Analysis in the Technical Documents.
COORDINATION
Different NSCB Resolutions were approved enjoining agencies to provide assistance to NSO and appproving the composition and Terms of Reference of the census coordinating boards for the 2002 Census of Agriculture and Fisheries. Refer to NSCB Resolutions in the Technical Documents.
RECRUITMENT AND HIRING
The applicants underwent rigid selection procedures that included a test on handwriting, written examination and personal interview. Refer to Recruitment and Hiring in theTechnical Documents.
TRAINING
The training program involved the training of all personnel utilized during the enumeration of the 2002 Census of Agriculture. The training was conducted in four levels, namely, Task Force or First Level, Second Level, Third Level and Fourth Level trainings.
Task Force:
Four classess, which were all held at the Central Office, were conducted for the Task Force training. Classes 1 and 2 were conducted on November 26 to 29, 2002 while Classes 3 and 4 were held on December 3 to 6 , 2002.
Participants for this level were selected Central Office (CO) personnel, selected Provincial Statistics Officers (PSOs) and Regional Statisticians of the National Statistics Officer (NSO); and selected CO personnel of the Bureau of Agricultural Statistics (BAS). Trainers and resource persons for the training were selected staff of the Census Planning and Operations Division and personnel from BAS.
Second Level:
The second level training was conducted in the regional offices on December 10 to 13, 2002. This was participated in by the Regional Directors, rest of PSOs, Provincial Statisticians, and selected regional and provincial staff of NSO; and Regional Agricultural Statistics Officers of BAS. Trainers for this level were the participants of the Task Force training.
Third Level:
The third level training was conducted on February 10 to 14, 2003 mostly at the NSO Provincial Offices. It was attended by the District Statistics Officers, Statistical Coordination Officers, and selected provincial staff of the NSO; hired Census Area Supevisors; and Provincial Agricultural Statistics Officers, other provincial staff, and field personnel of BAS.
Fourth Level:
The fourth level training was conducted in two batches at designated district/municipal training centers. The first batch was held on February 17 to 21, 2003 while the second batch on February 24 to 28, 2003. Participants in this level were Team Supervisors and Enumerators.
Eight pretests were done primarily to test correctness and clarity of questions. Refer to Pretest Reports in the Technical Documents.
PILOT CENSUS
Pilot census is a simulation of the actual census to determine problems that may arise during the actual census. Refer to Pilot Report in the Technical Documents.
NUMBER OF ENUMERATORS, TEAM SUPEVISORS, AND CENSUS AREA SUPERVISORS
A total of about 19,500 enumerators, 4,000 Team Supervisors and 1,700 Census Area Supervisors were hired. Refer to Workload Analysis in the Technical Documents.
COORDINATION
Different NSCB Resolutions were approved enjoining agencies to provide assistance to NSO and appproving the composition and Terms of Reference of the census coordinating boards for the 2002 Census of Agriculture and Fisheries. Refer to NSCB Resolutions in the Technical Documents.
RECRUITMENT AND HIRING
The applicants underwent rigid selection procedures that included a test on handwriting, written examination and personal interview. Refer to Recruitment and Hiring in theTechnical Documents.
TRAINING
The training program involved the training of all personnel utilized during the enumeration of the 2002 Census of Agriculture. The training was conducted in four levels, namely, Task Force or First Level, Second Level, Third Level and Fourth Level trainings.
Task Force:
Four classess, which were all held at the Central Office, were conducted for the Task Force training. Classes 1 and 2 were conducted on November 26 to 29, 2002 while Classes 3 and 4 were held on December 3 to 6 , 2002.
Participants for this level were selected Central Office (CO) personnel, selected Provincial Statistics Officers (PSOs) and Regional Statisticians of the National Statistics Officer (NSO); and selected CO personnel of the Bureau of Agricultural Statistics (BAS). Trainers and resource persons for the training were selected staff of the Census Planning and Operations Division and personnel from BAS.
Second Level:
The second level training was conducted in the regional offices on December 10 to 13, 2002. This was participated in by the Regional Directors, rest of PSOs, Provincial Statisticians, and selected regional and provincial staff of NSO; and Regional Agricultural Statistics Officers of BAS. Trainers for this level were the participants of the Task Force training.
Third Level:
The third level training was conducted on February 10 to 14, 2003 mostly at the NSO Provincial Offices. It was attended by the District Statistics Officers, Statistical Coordination Officers, and selected provincial staff of the NSO; hired Census Area Supevisors; and Provincial Agricultural Statistics Officers, other provincial staff, and field personnel of BAS.
Fourth Level:
The fourth level training was conducted in two batches at designated district/municipal training centers. The first batch was held on February 17 to 21, 2003 while the second batch on February 24 to 28, 2003. Participants in this level were Team Supervisors and Enumerators.
Data Collectors
| Name | Abbreviation | Affiliation |
|---|---|---|
| National Statistics Office | NSO | National Economic and Development Authority |
Questionnaires
Questionnaires
CAF Form 1 (List of Households, Agricultural and Fishing Operators) - is a two-page form used to list all households in the enumeration areas (EAs) and to identify the members of the households engaged in agricultural and fishing activities.
CAF Form 2 (Agriculture Questionnaire) - is a four-page queationnaire used to record detailed information on the agricultural operation of household members who were engaged in raising of crops, livestock, poultry, mushroom, honeybee and other agricultural activities.
Refer to Technical Documents for samples of the questionnaires.
CAF Form 2 (Agriculture Questionnaire) - is a four-page queationnaire used to record detailed information on the agricultural operation of household members who were engaged in raising of crops, livestock, poultry, mushroom, honeybee and other agricultural activities.
Refer to Technical Documents for samples of the questionnaires.
Data Processing
Data Editing
The accomplished census forms underwent several stages of data editing. These stages include the following:
1. Field editing which consisted of checking of consistency, correctness and completeness of entries while in the field.
2. Manual Processing of accomplished questionnaires at the Provincial Offices where the following were done:
a. Verification of geographic identification and completeness of forms
b. Checking for legibility of entries
c. Coding
3. Machine Processing which includes machine validation, consistency checking and completeness checking of entries.
1. Field editing which consisted of checking of consistency, correctness and completeness of entries while in the field.
2. Manual Processing of accomplished questionnaires at the Provincial Offices where the following were done:
a. Verification of geographic identification and completeness of forms
b. Checking for legibility of entries
c. Coding
3. Machine Processing which includes machine validation, consistency checking and completeness checking of entries.
Other Processing
Machine Processing where the following was done:
a. Scanning of accomplished questionnaires at the Regional Offices which includes
i. Data entry and interpretation
ii. File preparation,
iii. Back up of data files
iv. Summarization of data according to predetermined table formats
b. Post data capture processing at the Central Office which includes tabulation of results and creation of public use files (PUF).
a. Scanning of accomplished questionnaires at the Regional Offices which includes
i. Data entry and interpretation
ii. File preparation,
iii. Back up of data files
iv. Summarization of data according to predetermined table formats
b. Post data capture processing at the Central Office which includes tabulation of results and creation of public use files (PUF).
Data Appraisal
Estimates of Sampling Error
In order to provide a basis for assessing the reliability or precision of CA estimates, the estimation of the magnitude of sampling error in the census data was undertaken by the NSO for the 2002 CA. The standard error (SE) and coefficient of variation (C.V.) were used as measures of sampling error.
Refer to Technical Documents.
Refer to Technical Documents.
Access policy
Access authority
| Name | Affiliation | |
|---|---|---|
| Director, Household Statistics Department | National Statistics Office | hsd.staff@census.gov.ph |
Contacts
| Name | Affiliation | |
|---|---|---|
| Director, Household Statistics Department | NSO | hsd.staff@census.gov.ph |
Confidentiality
This Census conforms to the provisions of confidentiality stated under Section 4 of Commonwealth Act No. 591, which says that the "Data furnished to the Bureau of Census and Statistics (BCS) now known as the National Statistics Office, by an individual, corporation, partnership, institution or business enterprise shall not be used as evidence in any court or in any public office either as evidence against the individual, corporation, association, partnership, institution, or business enterprise from whom such data emanates; nor shall such data or information be divulged to any person except authorized employees of the BCS acting in the performance of their duties; nor shall such data be published except in the form of summaries or statistical tables in which no reference to an individual, corporation, association, partnership, institution or business enterprise shall appear."
Access conditions
Authorization to use this data is granted only to the client or data user and persons within its organization, if applicable. Under no circumstances shall the client reproduce, distribute, sell or lend the entire data or parts thereof to any other data user apart from himself or that of authorized employees in his organization. The NSO shall hold the data user fully responsible for safeguarding the data from any unauthorized access or use.
Before being granted access to the dataset, all users have to formally agree:
1. to make no copies of any files or portions of files to which s/he is granted access except those authorized by the data depositor.
2. not to use any technique in an attempt to learn the identity of any person, establishment, or sampling unit not identified on public use data files.
3. to hold in strictest confidence the identification of any establishment or individual that may be inadvertently revealed in any documents or discussion, or analysis. Such inadvertent identification revealed in her/his analysis will be immediately brought to the attention of the data depositor.
Before being granted access to the dataset, all users have to formally agree:
1. to make no copies of any files or portions of files to which s/he is granted access except those authorized by the data depositor.
2. not to use any technique in an attempt to learn the identity of any person, establishment, or sampling unit not identified on public use data files.
3. to hold in strictest confidence the identification of any establishment or individual that may be inadvertently revealed in any documents or discussion, or analysis. Such inadvertent identification revealed in her/his analysis will be immediately brought to the attention of the data depositor.
Citation requirements
Any report, paper or similar articles, whether published or not, emanating from the use of this data shall give appropriate acknowledgement as suggested herein, “2002 Census of Agriculture, version 2.1, National Statistics Office, Manila, Philippines,” as the source of basic data. The data user or client is encouraged to provide NSO with a copy of such report, paper or article. It is understood that unless expressly allowed by the client, such report, paper or article shall not be used for any purpose other than monitoring.
Disclaimer and copyrights
Disclaimer
The NSO gives no warranty that the data are free from errors. Hence, the NSO shall not be held responsible for any loss or damage as a result of the client's manipulation or tabulation of the data.
Copyright
The data user acknowledges that any available intellectual property rights, including copyright in the data are owned by the Philippines National Statistics Office.
Metadata production
DDI Document ID
DDI_PHL_2002_AgC_v01_M
Producers
| Name | Abbreviation | Affiliation | Role |
|---|---|---|---|
| Ana Piad | ATP | NSO-HSD-CPOD | Documenter |
| Divina Gracia del Prado | DLDP | NSO-HSD | Reviewer |
| Accelerated Data Program | ADP | International Household Survey Network | Editing for the IHSN Survey Catalog |
Date of Metadata Production
2010-01-28
DDI Document version
Version 01: Adopted from "DDI_PHL_2002_CA_v3_M" DDI that was done by metadata producers mentioned in "Metadata Production" section.