| 保护地栽培条件下灌水方法对土壤温度的影响 |
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| 引用本文： | 付时丰,李中,杨丽娟,苏娜. 保护地栽培条件下灌水方法对土壤温度的影响[J]. 灌溉排水学报, 2006, 25(1): 67-70 |
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| 作者姓名： | 付时丰 李中 杨丽娟 苏娜 |
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| 作者单位： | 1. 沈阳农业大学,土地与环境学院,辽宁,沈阳,110161
2. 沈阳市于洪区农业技术推广中心,辽宁,沈阳,110161 |
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| 摘 要： | 对塑料大棚内渗灌、滴灌和沟灌条件下土壤温度的变化规律进行研究,结果表明,在早春和秋冬低温期,保护地内采用渗灌、滴灌可以比沟灌更能保持较高的土温,灌水方法对上层土壤温度的影响大于对深层土壤温度的影响。不同灌水方法对0~30 cm土层平均温度的影响差异极显著,其中渗灌比沟灌高1.79℃,滴灌比沟灌高2.70℃。灌水后1 d内保护地0~20 cm土层温度的日变化规律是:10:00~18:00各层土壤温度为渗灌和滴灌高于沟灌,而06:00~08:00和18:00~22:00沟灌高于滴灌和渗灌;这种变化趋势以5~15 cm土层最明显,该层土壤温度日较差以渗灌为最大,其次是滴灌,而以沟灌最小,且温度最大值出现时间依次延后2 h左右。20 cm及其以下层次3种灌水方式土壤温度的日变化平缓,而且不同处理之间温度差异也逐渐减小。
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| 关 键 词： | 塑料大棚 灌溉方法 土壤温度 |
| 文章编号： | 1000-646X(2006)01-0067-04 |
| 收稿时间： | 2005-09-20 |
| 修稿时间： | 2005-09-20 |
Effect of Irrigation Methods on Soil Temperature under Protected Cultivation |
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| FU Shi-feng,LI Zhong,YANG Li-juan,SU Na. Effect of Irrigation Methods on Soil Temperature under Protected Cultivation[J]. Journal of Irrigation and Drainage, 2006, 25(1): 67-70 |
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| Authors: | FU Shi-feng LI Zhong YANG Li-juan SU Na |
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| Affiliation: | Shenyang Agricultural University, Shenyang 110161, China |
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| Abstract: | Seep irrigation and drip irrigation can increase soil temperature compared with furrow irrigation,and this effect in upper soil layer is greater than that in deep soil layer.The daily mean temperature in seep irrigation and drip irrigation is 1.79 ℃ and 2.70 ℃ higher than that in furrow irrigation respectively,and this variance is significant.The daily variation after one day irrigation between 0~20 cm soil layer is: between 10:00~18:00,soil temperature of different soil layer in seep irrigation and drip irrigation is higher than that in furrow irrigation,and the result is reverse between 06:00~08:00 and 18:00~22:00.It is the most significant between layer of 5～15 cm and the appearing time of maximum temperature is lagged 2 h among seep irrigation,drip irrigation and furrow irrigation. |
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| Keywords: | protected cultivation irrigation methods soil temperature |
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