Global Distribution of Arable Land, Cereal Yield and Nitrogenous Fertilizer Use
Global Distribution of Arable Land, Cereal Yield and Nitrogenous Fertilizer Use
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全球耕地、谷物产量和氮肥使用分布
DOI：
10.1007/978-3-662-04033-1_26
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发表时间：
2000
期刊：
影响因子：
--
通讯作者：
J. Lynch
中科院分区：
文献类型：
--
作者：
H. Kawashima;K. Okamoto;K. Ohga;J. Lynch
可见的世界农业信息有助于了解当前世界农业状况。全球谷物产量和氮肥施用地图由USGS（美国地质调查局）和FAO（联合国粮食及农业组织）提供的数据集组成。耕地在地球上的分布并不均匀。许多可耕地位于欧洲和亚洲。温带地区谷物产量较高，热带地区谷物产量较低。西欧和东亚的氮肥使用量很高，但非洲的氮肥使用量很低，尼罗河流域除外。北方半球的农业活动高于南半球。可耕地面积和农业活动地图显示，非洲、澳大利亚和南美洲部分地区有足够的空间增加谷物产量。
Visible information on world agriculture can help to understand the current world agricultural status. The global maps for cereal yield and nitrogenous fertilizer application are composed of data sets provided by USGS (United States Geological Survey) and the FAO (Food and Agriculture Organization of the United Nations). Arable land is not distributed uniformly over the earth. Much arable land is located in Europe and Asia. The cereal yield is relatively high in the temperate zone, while that in the Tropics is relatively low. The use of nitrogenous fertilizer is high in Western Europe and East Asia, but quite low in Africa, except in the Nile basin. Agricultural activity in the Northern Hemisphere is higher than that in the Southern Hemisphere. Maps of arable areas and agricultural activity indicate that there is enough room to increase cereal production in parts of Africa, Australia and South America.