Annual Agricultural Survey 2021-2022 - Senegal

Abstract
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The agricultural survey in its current form covers all regions of the country and all 45 departments of Senegal. The agricultural survey is an annual statistical operation whose general objective is to estimate the level of the main agricultural output of family-type agricultural holdings. It also makes it possible to provide information on the physical characteristics of cultivated plots (geo-location, area) and major investments made at their level (agricultural inputs, cultivation operations, soil management and restoration). The main indicators relate to yield levels, areas sown, production and means of production.

Following a modular approach, the 2021-2022 edition of the EAA is characterized by the integration of the ILP (Revenue, Labor and Productivity) module. The introduction of this module makes it possible to collect the information necessary for the calculation of SDGs 2.3.1 and 2.3.2. In addition, the basic module of the 50x2030 questionnaire allows the collection of data for the calculation of SDG 5.a.1 and CAADP indicators (3.1i, 3.1ii, 3.2i, 3.2ii, 3.2iii and 4.1i) .

Geographic coverage
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The annual agricultural survey covers all 45 departments of Senegal. However, for reasons related to anonymization, the variable "Department" has been replaced by the variable "Agroecological Zone" which constitutes groupings in relation to the departments. The variable "Region" remains in the anonymized version of the data.

Analysis unit
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Households

Universe
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The agricultural survey covers all households and plots in the 45 departments of Senegal.

Kind of data
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Sample survey data [ssd]

Sampling procedure
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The EAA was built on a two-stage survey, with enumeration districts (DRs) as primary units (PU) and agricultural households as secondary units (US), as defined during the general census of population and l'Habitat, de l'Agriculture et de l'Élevage (RGPHAE) of 2013. In line with the broadening of the scope of the survey recommended by the AGRIS approach, the sampling plan has integrated from this campaign , a first-degree stratification, induced by that of the second degree, to better reflect the different agricultural activities and improve the efficiency of the estimates. The choice of a first-degree stratification induced by that of the second degree, although less efficient than an independent first-degree stratification. The stratification took into account the relative importance of the main agricultural activities (in terms of household size) identified during the 2013 RGPHAE, namely rainfed agriculture, livestock and horticulture.

Four strata were thus formed as follows:
- the “rain-fed only” stratum which groups together all the households practicing only rain-fed crops;
- the “livestock only” stratum for households that practice animal husbandry only;
- the “Horticulture and other crops” stratum, which includes households that mainly practice horticulture and secondarily other crops (forestry, fruit growing, etc.);
- the “Rain-fed-breeding” stratum made up of households that practice both rain-fed agriculture and livestock breeding.

The size of the sample of agricultural households to be surveyed was calculated by department (area of study) by setting a relative error of 10% on the variable of interest. The distribution of the sample of each department in the strata was made using the method of Bankier (1988) developed in the methodological guide on the Practices of Master Sampling Bases (pp. 79-81) of the Global Strategy (GSARS ).

At the national level, the total theoretical sample is equal to 7,450 households, spread over 1,460 physical CDs, with 5 households per CD. At the end of the enumeration operation carried out in the physical sample CDs, adjustments were made to take into account the actual updated size of the CDs, which led to a final size of 7,378 households, or 1,382 CDs.

Mode of data collection
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Computer Assisted Personal Interview [capi]

Research instrument
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The first questionnaire collected information on census and characteristics of agricultural household plots. The second questionnaire collected information on agricultural production, labor and agricultural productivity.

Response rate
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The overall response rate is 94% for the first phase of the survey while it is 89% for the second phase.

{'Abstract': '当前形式的农业普查涵盖该国所有地区及塞内加尔的45个部门。农业普查是一项年度统计操作，其总体目标在于估算家庭型农业经营主体主要农业产出水平。此外，它还提供了关于耕作地块物理特征（地理定位、面积）以及在其层面上的主要投资信息（农业投入、耕作操作、土壤管理和恢复）。主要指标涉及产量水平、播种面积、生产及生产手段。', 'Following a modular approach, the 2021-2022 edition of the EAA is characterized by the integration of the ILP (Revenue, Labor and Productivity) module. The introduction of this module makes it possible to collect the information necessary for the calculation of SDGs 2.3.1 and 2.3.2. In addition, the basic module of the 50x2030 questionnaire allows the collection of data for the calculation of SDG 5.a.1 and CAADP indicators (3.1i, 3.1ii, 3.2i, 3.2ii, 3.2iii and 4.1i).': '遵循模块化方法，2021-2022版的EAA（经济分析年报）以集成ILP模块（收入、劳动与生产力）为特征。该模块的引入使得收集计算可持续发展目标2.3.1和2.3.2所需信息成为可能。此外，50x2030问卷的基本模块允许收集用于计算可持续发展目标5.a.1和CAADP指标（3.1i、3.1ii、3.2i、3.2ii、3.2iii及4.1i）的数据。', 'Geographic coverage': '年度农业普查覆盖塞内加尔的全部45个部门。然而，出于匿名化的考虑，变量“部门”已被变量“农业生态区”所替代，该变量根据部门进行分组。变量“地区”在数据的匿名化版本中保持不变。', 'Analysis unit': '农户', 'Universe': '农业普查覆盖塞内加尔45个部门的全部农户和地块。', 'Kind of data': '样本调查数据[ssd]', 'Sampling procedure': 'EAA基于两阶段调查构建，以人口和居住环境、农业和畜牧业（RGPHAE）的普查中定义的统计区（DR）作为一级单位（PU），农业家庭作为二级单位（US）。根据AGRIS方法推荐的调查范围扩大建议，抽样计划从本调查周期开始，整合了一级分层，该一级分层由二级分层引起，以更好地反映不同的农业活动并提高估计的效率。虽然由二级分层引起的一级分层不如独立的一级分层有效，但分层考虑了在2013年RGPHAE中确定的主要农业活动（以家庭规模为标准）的相对重要性，即雨养农业、畜牧业和园艺。因此，形成了以下四个层次：- 仅雨养农业层，将所有仅从事雨养作物的家庭组合在一起；- 仅畜牧业层，为仅从事畜牧业的家庭；- 园艺及其他作物层，包括主要从事园艺并次要从事其他作物（林业、果树种植等）的家庭；- 雨养农业-畜牧业层，由既从事雨养农业又从事畜牧业的家庭组成。通过设定对感兴趣变量的相对误差为10%，根据部门（研究区域）计算了要调查的农业家庭样本的大小。每个部门的样本分布使用全球战略（GSARS）方法指南《高级抽样基础实践》（第79-81页）中开发的Bankier（1988）方法进行。', 'At the national level, the total theoretical sample is equal to 7,450 households, spread over 1,460 physical CDs, with 5 households per CD. At the end of the enumeration operation carried out in the physical sample CDs, adjustments were made to take into account the actual updated size of the CDs, which led to a final size of 7,378 households, or 1,382 CDs.': '在国家层面，理论样本总数为7,450户，分布在1,460个物理CD上，每个CD有5户。在物理样本CD上的计数操作结束后，对实际更新的CD规模进行了调整，最终规模为7,378户，或1,382个CD。', 'Mode of data collection': '计算机辅助个人访谈[capi]', 'Research instrument': '第一份问卷收集有关农业家庭地块的普查和特征信息。第二份问卷收集有关农业生产、劳动和农业生产力信息。', 'Response rate': '调查的第一阶段整体响应率为94%，而第二阶段的响应率为89%。'}