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首页> 外文期刊>Agricultural and Forest Meteorology >Agro-climatic suitability mapping for crop production in the Bolivian Altiplano: A case study for quinoa
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Agro-climatic suitability mapping for crop production in the Bolivian Altiplano: A case study for quinoa

机译：玻利维亚高原农业气候适合作物生产的作图：以藜麦为例

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An agro-climatic suitability library for crop production was generated by using climatic data sets from 20 to 33 years for 41 meteorological stations in the Bolivian Altiplano. Four agro-climatic indicators for the region were obtained by validated calculation procedures. The reference evapotranspiration, the length of the rainy season, the severity of intra-seasonal dry spells and the monthly frost risks were determined for each of the stations. To get a geographical coverage, the point data were subsequently entered in a GIS environment and interpolated using ordinary kriging, with or without incorporating anisotropy. The presented case study focuses on quinoa (Chenopodium quinoa Willd.), an important crop in the region that is cultivated during the short and irregular rainfall season and that is well adapted to the frequent occurrence of drought and frost. The GIS library was used to mark zones where deficit irrigation could improve quinoa production. With a data query, zones were delimited where the irrigation can be useful to stretch the length of the growing season beyond the limits of the rainy season and/or to mitigate intra-seasonal dry spells. Determined net irrigation requirements were used to assess the vulnerability of the delineatedzones. Two regions with a high vulnerability, a severe drought risk and an acceptable frost risk are the eastern region of the Altiplano and the inter-salt depression region in the south. Together, they account for around one-third of the Altiplano area.In 1 year out of 2, irrigation in these regions can strongly improve crop production. The use of irrigation in other regions of the Altiplano will be less beneficial either because the irrigation requirements are low (region around Lake Titicaca), or because the frost risk is too high (the dry west, the south-west, and the region in between Lake Poopo and the Uyuni salt depression). Apart from the presented application, a general view on the climatic system of the Altiplano could be deduced from the library. The proposed routine in this study yielded a straightforward method to deal with large sets of detailed climatic information and to link them with practical agricultural advice. By redefining query limits and incorporating other data, the GIS library can be used for impact assessments of other agricultural practices and for studying the effects of climate change and of the El Nino Southern Oscillation on quinoa production in the delineated zones.
机译：通过使用玻利维亚高原41个气象站20到33年的气候数据集，建立了一个农业气候适合作物生产的数据库。通过验证的计算程序获得了该地区的四个农业气候指标。确定每个站的参考蒸散量，雨季的长度，季节内干旱的严重程度以及每月的霜冻风险。为了获得地理覆盖范围，随后将点数据输入到GIS环境中，并使用普通克里格插值法进行插值，无论是否包含各向异性。本案例研究的重点是藜麦（藜麦藜藜），该地区的重要农作物在短而不规则的降雨季节种植，非常适合经常发生的干旱和霜冻。 GIS库用于标记缺水灌溉可以提高藜麦产量的区域。通过数据查询，划定了一些区域，在这些区域中，灌溉可用于延长生长期，使其超出雨季的界限和/或减轻季节内的干旱。确定的净灌溉要求用于评估划定区域的脆弱性。 Altiplano的东部地区和南部的盐间洼地地区是两个脆弱性较高的地区，严重的干旱风险和可接受的霜冻风险。它们合计占高原地区的三分之一左右。在2年中的1年中，这些地区的灌溉可以大大提高作物产量。由于灌溉需求低（喀喀湖周围的地区），或者由于霜冻风险过高（西部干旱，西南地区和西南部地区），在高原地区其他地区使用灌溉的好处较小。在Poopo湖和Uyuni盐洼之间）。除提出的申请外，还可以从图书馆中得出关于高原气候系统的总体看法。这项研究中建议的程序产生了一种直接的方法来处理大量详细的气候信息，并将其与实用的农业建议联系起来。通过重新定义查询限制并合并其他数据，GIS库可用于其他农业实践的影响评估以及研究气候变化和厄尔尼诺南方涛动对划定区域藜麦产量的影响。

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