Amazonia holds the largest continuous area of tropical forests with intense land use change dynamics inducing water, carbon, and energy feedbacks with regional and global impacts. Much of our knowledge of land use change in Amazonia comes from studies of the Brazilian Amazon, which accounts for two thirds of the region. Amazonia outside of Brazil has received less attention because of the difficulty of acquiring consistent data across countries. We present here an agricultural statistics database of the entire Amazonia region, with a harmonized description of crops and pastures in geospatial format, based on administrative boundary data at the municipality level. The spatial coverage includes countries within Amazonia and spans censuses and surveys from 1950 to 2012. Harmonized crop and pasture types are explored by grouping annual and perennial cropping systems, C3 and C4 photosynthetic pathways, planted and natural pastures, and main crops. Our analysis examined the spatial pattern of ratios between classes of the groups and their correlation with the agricultural extent of crops and pastures within administrative units of the Amazon, by country, and census/survey dates. Significant correlations were found between all ratios and the fraction of agricultural lands of each administrative unit, with the exception of planted to natural pastures ratio and pasture lands extent. Brazil and Peru in most cases have significant correlations for all ratios analyzed even for specific census and survey dates. Results suggested improvements, and potential applications of the database for carbon, water, climate, and land use change studies are discussed. The database presented here provides an Amazon-wide improved data set on agricultural dynamics with expanded temporal and spatial coverage. Key Points Agricultural census database covers Amazon basin municipalities from 1950 to 2012 Harmonized database groups crops and pastures by cropping system, C3/C4, and main crops We explored correlations between groups and the extent of agricultural lands

中文翻译：

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亚马逊河流域作物和牧场分布的时空对比：1950 年以来人口普查数据的新农业用地数据集

亚马逊拥有最大的连续热带森林面积，土地利用变化剧烈，导致水、碳和能量反馈，具有区域和全球影响。我们对亚马逊地区土地利用变化的大部分了解来自对巴西亚马逊地区的研究，该地区占该地区的三分之二。由于难以在不同国家/地区获取一致的数据，巴西以外的亚马逊地区受到的关注较少。我们在此展示了整个亚马逊地区的农业统计数据库，根据城市一级的行政边界数据，以地理空间格式对农作物和牧场进行了统一描述。空间覆盖范围包括亚马逊地区的国家，涵盖 1950 年至 2012 年的人口普查和调查。通过对一年生和多年生作物系统、C3 和 C4 光合途径、种植和天然牧场以及主要作物进行分组来探索协调的作物和牧场类型。我们的分析按国家和人口普查/调查日期检查了各组之间比率的空间模式及其与亚马逊行政单位内农作物和牧场农业范围的相关性。发现所有比率与每个行政单位的农业用地比例之间存在显着相关性，但种植与天然牧场的比率和牧场范围除外。在大多数情况下，巴西和秘鲁对所有分析的比率都具有显着相关性，即使对于特定的普查和调查日期也是如此。结果建议改进，以及碳、水、气候、和土地利用变化研究进行了讨论。此处提供的数据库提供了亚马逊范围内关于农业动态的改进数据集，具有扩展的时间和空间覆盖范围。要点 农业普查数据库涵盖了 1950 年至 2012 年的亚马逊流域市 统一数据库按种植制度、C3/C4 和主要作物对作物和牧场进行分组 我们探讨了组与农业用地范围之间的相关性