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利用南水北调中线水源地(淅川、邓州、西峡和内乡)1971～2007年的气象资料,对水源地的日照、气温、降水等要素的年际、月际变化进行了分析。结果表明:水源地四季分明,雨热同期,冬夏长,春秋短;冬季干旱,夏季降水集中,一年内干湿、冷暖变化激烈。这样的农业气候资源适合各种植物生长,特别有利于中药材、食用菌、小辣椒和猕猴桃等特色农业发展,为水源地的水土保持和水质净化提供了良好的生态环境。
Based on the meteorological data from 1971 to 2007 in the mid-line of South-to-North Water Diversion Project (Xichuan, Dengzhou, Xixia and Neixiang), the interannual and monthly variations of sunshine, air temperature and precipitation were analyzed. The results show that: the water source is characterized by four seasons, rain and heat over the same period, long summer and winter, short spring and autumn; winter drought, summer rainfall concentrated, wet and dry, intense changes in one year. Such agricultural climate resources suitable for a variety of plant growth, especially conducive to the development of characteristic agriculture such as Chinese herbal medicines, edible fungi, peppers and kiwifruit, providing a good ecological environment for soil and water conservation and water purification of water sources.