衡阳市农业气候生产潜力分析

RESEARCH ON THE POTENTIAL PRODUCTIVITY OF AGROCLIMATIC RESOURCES IN HENGYANG

本文概述了衡阳市的农业气候资源背景及概况，并在此基础上，以水稻、玉米和小麦为代表，对本市粮食作物的农业气候生产潜力（包括光合能力、光温潜力和气候潜力）进行了估算和分析。指出，衡阳市农业气候生产潜力大，但利用率低，限制农业气候潜力发挥和影响粮食作物产量的气候主导因素是水分条件。

On the basis of the characteristics of agroclimate resours in hengyang,this paper estimates the potential productivity of the thote-energy, photo-therm and cIimate (light temperature and water) for different food crops (mainly rice. wheat and maize). and futher makes an analysis to the resuct of the estimation. It is shown that the potential productivity of agroclimatic resiurces in hergyang is great but the rate of vailabuty is low,and the mainly climatic factor which Limites the exertion of the agroclimatic potential productivity and fluences the crop production is water condition.