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雷达卡
英文文献：Transformation in the size and distribution of farmland operated by household and other farms in select countries of sub-Saharan Africa-撒哈拉以南非洲某些国家的家庭和其他农场经营的农田规模和分布发生变化
英文文献作者：Lowder, Sarah K.,Bertini, Raffaele,Karfakis, Panagiotis,Croppenstedt, Andre
英文文献摘要：
For select countries in sub-Saharan Africa, we compare various sources of information on agricultural land in an attempt to determine what share of total agricultural land may be operated by corporate farms or government enterprises. We also combine various data on agricultural land and households in order to gain a better understanding of the number and distribution of household and non-household farms and farmland in sub-Saharan Africa and Asia. We also examine changes in farmland distribution among household farms for select countries in sub-Saharan Africa and Asia. Whereas most literature on changes in farm size focuses on the average farm size, we go beyond looking at averages to consider the entire distribution of household farms. We find that a significant share of agricultural land is likely operated by non-household farms in a select set of African countries. There is a need to redouble efforts to conduct surveys of all farms as opposed to simply household farms; efforts such as the Agricultural Information System (AGRIS) are timely. LSMS and DHS data confirm the finding that average farm sizes have decreased in many countries of sub-Saharan Africa, although the decrease results from various types of changes in farmland distribution. Previous estimates of the number of farms in sub-Saharan Africa are out of date and we estimate that there are more than 77 million farms in that region.
对于撒哈拉以南非洲的一些国家，我们比较了各种农业用地信息来源，试图确定企业农场或政府企业在农业用地总量中所占的比例。我们还结合了农业用地和家庭的各种数据，以便更好地了解撒哈拉以南非洲和亚洲的家庭和非家庭农场和农田的数量和分布。我们还考察了撒哈拉以南非洲和亚洲某些国家的家庭农场中耕地分布的变化。尽管大多数关于农场规模变化的文献关注的是平均农场规模，但我们不仅仅关注平均水平，而是考虑家庭农场的整体分布。我们发现，在一些选定的非洲国家中，很大一部分农地可能是由非家庭农场经营的。需要加倍努力，对所有农场进行调查，而不是简单地对家庭农场进行调查;诸如农业信息系统(AGRIS)这样的努力是及时的。LSMS和DHS的数据证实了这一发现，即撒哈拉以南非洲许多国家的平均农场规模已经缩小，尽管这种缩小是由农田分布的各种类型变化造成的。以前对撒哈拉以南非洲地区农场数量的估计已经过时，我们估计该地区有7700多万农场。
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