| 李毅,邵明安,王文焰,王全九.玉米田地温的时空变化特征及其预报[J].水利学报,2003,34(1):0103-0108 |
| 玉米田地温的时空变化特征及其预报 |
| Temporal and spatial variation and forecast of soil temperature in maize fields |
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| DOI： |
| 中文关键词: 地温 地膜覆盖 时空变化 预报 |
| 英文关键词: soil temperature plastic mulch temporal and spatial variation forecasting and prediction |
| 基金项目: |
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| 摘要点击次数: 2731 |
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| 中文摘要: |
| 根据新疆某灌区玉米田地温和气温的连续动态监 测资料，分析了覆膜与不覆膜条件下不同观测时刻地温的时空变化特征，根据不同观测时刻覆膜与不覆膜地表0cm温度与气温之间的联系，将全生育期的地温及气温分阶段处理，并对不同时刻地温的分阶段特征作了进一步探讨。地温的时空变化特征为其预报提供了依据，采用前1日20:00气温预测第2日8:00的25cm地温，用已得的线性关系可求得0cm地温，从而预报了8:00的剖面地温，以变化相对平缓的8:00地温作为基础值，将14:00及20:00 地 温转化为无量纲形式，其变化规律与深度之间有很好的相关性，从而使科学地预报该地区剖 面地温成为可能。 |
| 英文摘要: |
| On the basis of a cominuonsly dynamic observation of soil temperature and air temperature in a maize field in Xinjiang, the temporal and spatial variation features of soil temperature with and without plastic mulch were observed and analyzed. The correlations between surface soil temperature and air temperature were developed, which were treated by stages. The daily variation of soil temporal at different hours and under different depths were forecasted and predicted. |
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