为了弄清长江三峡建大坝对柑桔生产的影响,开发长江三峡柑桔业,促进三峡地区经济发展,我们承担了由国家科委等部委下达的科研任务,现将研究结果报告如下。一、三峡区柑桔生产的条件1.气候资源极宜发展柑桔生产,无国内检疫性病害本地区地处中亚热带,年均温17—19℃,最冷月均温5.9—7.2℃,极端最低温-2.5—-5.6℃,≥10℃年积温5400—6000℃,年雨—5.6℃,≥10℃年积温5400—6000℃,年雨 In order to find out the impact of the Three Gorges dam on the production of citrus, to develop the citrus industry in the Three Gorges of the Yangtze River and to promote the economic development in the Three Gorges area, we have undertaken the scientific research tasks assigned by the State Science and Technology Commission and other ministries and commissions. The research results are reported as follows. First, the Three Gorges area of ​​citrus production conditions 1 climate resources should develop citrus, no domestic quarantine disease The region is located in the subtropical zone, with an average annual temperature of 17-19 ℃, the coldest month average temperature of 5.9-7.2 ℃, Extreme minimum temperature -2.5--5.6 ℃, ≥10 ℃ Annual accumulated temperature 5400-6000 ℃, annual rainfall -5.6 ℃, ≥10 ℃ Annual accumulated temperature 5400-6000 ℃, annual rain