Agricultural Census, 2009 - Samoa

Abstract
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Although Samoa had a history of Population censuses, the 2009 Agricultural Census is only the third agricultural census conducted in the country, with sample surveys in 2000, 2002, 2004 and 2005. The 2004 survey collected some basic information to assess the impacted of cyclone Heta on major crops and its impact on agriculturally active households. It was estimated that more than fifty percent of coconuts were damage, forty percent of cocoa, thirty percent of taro and taamu, and twenty percent of breadfruit. Some forty percent of agriculturally active households experienced shortage of food supply and decreased of income from agriculture.

Geographic coverage
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National coverage

Analysis unit
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Households

Universe
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The statistical unit for the AC data collection was the agricultural holding, defined as an economic unit of agricultural production, under single management, comprising of all livestock kept and all land used wholly or partly for agricultural production purposes, without regard to title, legal form or size. Single management may be exercised by an individual or household, jointly by two or more individuals or households, by a clan or tribe, or by a juridical person such as a corporation, cooperative or government agency. Holdings were classified as one of the following main legal status types: (i) individual household; (ii) in partnership; (iii) village association; and (iv) institution

Kind of data
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Census/enumeration data [cen]

Sampling procedure
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Census Methodology:

The methodology for carrying out the census of Agriculture in Samoa was a combination of complete count and sample survey. Thus the census was basically two part operation. The first part involved all households who were required to complete the Household Form. The households identified as agriculturally active from the Household Forms (Subsistence, Subsistence and Cash and Commercial) were required to complete the Holding Form for every holding operated. The second part of the questionnaire was designed to cover 25 percent of all agricultural holdings as identified in the first part, with selection made on systematic sample basis (every fourth holding selected). Thus while the Household Form was canvassed in respect of all households, the Holding Form was to be completed by agriculturally active Households only and the Parcel Form was completed in respect of 25 percent of the agricultural holdings.

Mode of data collection
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Face-to-face [f2f]

Research instrument
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Three census forms were used in the AC 2009:
· the Household form, which was applied to all households to identify the agricultural holdings;
· the Holding form, applied to the agricultural holdings; and
· the Parcel form, filled in by the holdings selected in the sample.

The AC 2009 questionnaires covered 12 items of the 16 core items' recommended for the WCA 2010 round.

Cleaning operations
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a. DATA PROCESSING AND ARCHIVING
Manual edits were first done by the supervisors in the field and, later, in the main office, by a team of eight staff for three months. CSPro software was used for data processing. The Secretariat of the Pacific Community provided technical assistance for all activities from data processing to data tabulation.

b. CENSUS DATA QUALITY
Although the census forms were completed to high standards in terms of completeness and consistency, the information on parcels required special attention, particularly in terms of plot area.

Sampling error estimates
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Because of the systematic sampling, some of the information in this study is subject to sampling errors. The information collected from the Parcel Form, covers the plot details such as method of sowing, age of coconut and cocoa trees, and crops already harvested are based on the sample and possible sampling errors need to be considered in examining the results.

Data appraisal
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The AC 2014 results were released through printed reports, the SBS website and dissemination events. Two census publications (titled, respectively, Tabulation Report and Analytical Report) were produced to disseminate the final census results, in November 2011.

摘要
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尽管萨摩亚拥有人口普查的历史，但2009年的农业普查只是在该国进行的第三次农业普查，此前还曾于2000年、2002年、2004年和2005年进行过抽样调查。2004年的调查收集了一些基本信息，以评估飓风赫塔对主要农作物的影响及其对农业活跃家庭的影响。据估计，超过百分之五十的椰子受损，百分之四十的可可，百分之三十的芋头和塔阿穆，以及百分之二十的面包树。大约百分之四十的农业活跃家庭经历了食品供应短缺和农业收入下降。
地理覆盖范围
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全国范围
分析单元
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家庭
总体
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农业经营单位是AC数据收集的统计单位，定义为单一管理的农业生产经济单位，包括所有饲养的牲畜和所有完全或部分用于农业生产的土地，不考虑所有权、法律形式或规模。单一管理可以由个人或家庭、两个或多个个人或家庭共同、部族或部落，或法人实体如公司、合作社或政府机构行使。经营单位被归类为主法理状态类型之一：（i）个人家庭；（ii）合伙；（iii）村庄协会；（iv）机构。
数据类型
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普查/人口普查数据 [cen]
抽样程序
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普查方法：
在萨摩亚进行农业普查的方法是完整计数与抽样调查的结合。因此，普查基本上分为两个部分。第一部分涉及所有家庭，这些家庭需要填写家庭表格。从家庭表格（自给自足、自给自足和现金及商业）中识别出的农业活跃家庭需要为每个经营单位填写经营单位表格。问卷的第二部分旨在覆盖第一部分中确定的25%的农业经营单位，选择基于系统抽样（每四家选择一家）。因此，尽管家庭表格针对所有家庭进行普查，但经营单位表格仅由农业活跃家庭填写，而地块表格仅由抽样选择的农业经营单位填写。
数据收集方式
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面对面 [f2f]
研究工具
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2009年AC使用了三种普查表格：
·家庭表格，适用于所有家庭以识别农业经营单位；
·经营单位表格，适用于农业经营单位；
·地块表格，由抽样选择的经营单位填写。
2009年AC问卷涵盖了16个核心项目中的12项，这16个项目是WCA 2010轮次推荐的核心项目。
数据清洗操作
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a. 数据处理与存档：
现场监督员首先进行手动编辑，随后在总部，由一个由八名工作人员组成的团队在三个月内进行编辑。使用CSPro软件进行数据处理。太平洋社区秘书处为从数据处理到数据汇总的所有活动提供技术援助。
b. 普查数据质量：
尽管普查表格在完整性和一致性方面完成了高标准，但地块信息需要特别注意，尤其是在地块面积方面。
抽样误差估计
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由于系统抽样，本研究的部分信息受到抽样误差的影响。从地块表格收集的信息，包括播种方式、椰子和可可树的年龄以及已收获的农作物等细节，均基于样本，因此在审视结果时需要考虑可能的抽样误差。
数据评估
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2014年AC的结果通过印刷报告、SBS网站和推广活动发布。于2011年11月产生了两种普查出版物（分别题为汇总报告和分析报告），以传播最终普查结果。}