宁夏农业区霜冻出现规律分析
NINGXIA JOURNAL OF AGRICULTURE AND FORESTRY SCIENCE AND TECHNOLOGY(2001)
Abstract
根据宁夏近40年的日最低气温结合农作物的霜冻指标,计算了平均初、终霜日,异常早、晚霜冻,无霜期的绝对变率和保证率,并分析了宁夏各地霜冻出现的规律、时空特征及影响霜期变化的因素,为充分利用气候资源,趋利避害提供参考.
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