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以浮山县为例探讨了旱地休闲期气候资源和降水-贮水-蒸发的关系。结果表明,休闲期资源浪费严重,试区夏季休闲期达80天,冬春休闲期230天,分别占全年总数的21.92%和63.01%;太阳总辐射占全年的27.4%和41.8%;≥0℃积温占全年的32%,≥10℃积温占全年的48.9%;夏季休闲期降水占全年降水的55%,冬春休闲期占30.8%;夏闲田土壤水分蒸发量占同期降水的59.25%,冬春休闲田土壤水分蒸发量为同期降水的90%,周年休闲田土壤水分蒸发量是同期降水量的1.1倍以上。从保护开发利用土壤水入手,是提高资源利用率,实现旱地农业高效持续发展的有效途径。
Taking Fushan County as an Example, the relationship between climatic resources and rainfall - water storage - evaporation in dry land during the fallow period was discussed. The results showed that waste resources during the leisure time were serious. The summer leisure time was 80 days and the winter and spring leisure time was 230 days, accounting for 21.92% and 63.01% of the total respectively. The total solar radiation accounted for 27% of the whole year. 4% and 41.8% respectively; accumulated temperature≥0 ℃ accounted for 32% of the whole year; accumulated temperature≥10 ℃ accounted for 48.9% of the whole year; rainfall in summer leisure time accounted for 55% of annual precipitation, winter and spring leisure time accounted for 30% .8%; summer fallow field soil evaporation accounted for 59.25% of the same period precipitation, spring and winter leisure field soil moisture evaporation 90% of the same period precipitation, annual recreational field soil moisture evaporation is the same period precipitation 1.1 Times more. Starting from the protection and exploitation of soil water, it is an effective way to improve the utilization rate of resources and realize the sustainable and efficient development of agriculture in dry land.