红壤小流域农作物生产潜力分析——以敢上小流域为例

Analysis of The Agricultural Productive Potential of Red-Soil, Small Shed in Can Shang

采用层次递减法,对敢上小流域农作物生产潜力进行分析,建立了光、温、水和土壤肥力等因素对农作物生产潜力的影响模型.计算分析结果表明,影响光温潜力有效发挥的首要限制因子是土壤肥力,其次是水分条件.表3，参7。

Based on hierarchic progressive decrease model, this paper analysed the agricultural productive potentiality of small-shed in Ganshang and established the model of agricultural productive potential affected by the natural factors such as light, temperature, precipitation and soil fertility. The results showed that the order of limiting factors influencing the light -temperature productive potential was:soil fertility, and then precipitation.