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中文摘要：
利用2004--2008年广州市具有代表性的13种作物成本收益数据，借助Cobb—Douglas函数、生产经营绩效评估指标、主分成分析及分层聚类法对不同作物在投入产出、生产经营绩效管理上的差异进行研究．按作物在投入、风险与收益中的不同表现进行归类。结果表明：（1）广州市作物的劳动投入对产量的影响大于资本投入，作物种植规模效益明显；（2）作物间的土地产出水平差距最大而劳动生产水平差距较小，黄瓜和空心菜表现最优，而早稻、晚稻和花生表现欠佳；（3）早稻、晚稻和花生属于低投入、低风险、低收益的作物：黄瓜、空心菜属于中等投入而高风险高收益的作物：西红柿、荔枝属于高投入低风险中等收益水平的作物；茄子、香蕉、白菜、菜心、冬瓜和豆角均属高投入而风险与收益中等的作物。
英文摘要：
The purpose of this paper was to research on the input-output and economic performance by using 13 crops of Guangzhou from 2004- 2008, and classified these crops based on its input, risk and profit features. Methods employed include Cobb-Douglas function, indcxs of economic performance, principal components analysis, hierarchical clustering methods. It was concluded that： （1） on production, the labor input bad more influence than capital input, the crops economies of scale was more and more obvious.（2）the gap of land output was the most wider, and the labor production was the smallest,among the crops , Cucumis sativus and Ipomoea aquatica had the best economic performance, furthermore, Oryza sativa and Arachis hypogaea had the most poor performance. （3） Oryza sativa and Arachis hypogaea were the crops of lower input, lower risk and lower profit, Cucumis sativus and Ipomoea aquatica were the crops of middle input, higher risk and higher profit, Solanum lycopersicum and Litchi chinensis were the crops of higher input, lower risk and middle profit, otherwise, Solanum melongena, Musa supientum, Brassica pekinensis, Brassica campestris, Benincasa hispida and Vigna unguiculata were the crops of higher input, higher risk and middle profit.
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