| 河流故道区砂质土壤水分运移规律及灌溉制度初探 |
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| 引用本文： | 王 红,周大迈,张爱军,张月辰,任士魁.河流故道区砂质土壤水分运移规律及灌溉制度初探[J].中国生态农业学报,2006,14(2):177-179. |
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| 作者姓名： | 王 红 周大迈 张爱军 张月辰 任士魁 |
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| 作者单位： | 河北农业大学山区研究所,保定,071001 |
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| 基金项目： | 河北省科技厅科技攻关项目 |
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| 摘 要： | 对河流故道区砂质土壤水分运移规律及灌溉制度研究结果表明,不同灌水量处理灌水后7d内土壤蒸发量差异较小。7年生梨树地灌溉试验表明,增大灌水定额,减少灌水次数可达到节水增效的目的。土壤水分入渗深度在灌水定额为1200m3/hm2时,仍未突破梨树的主要根系范围;而目前群众普遍采用的灌水定额600m3/hm2,生育期内灌水6次的灌溉制度尚不能满足梨树根系对水分的要求。并提出采用梨树地灌水定额为900m3/hm2,生育期内灌水4次的定额足灌制度进行灌溉。
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| 关 键 词： | 沙地 灌水定额 土壤水分 蒸发 |
| 收稿时间： | 2004-12-23 |
| 修稿时间： | 2005-02-09 |
Moisture migration regularity and new irrigation method in the sandy soil of river ancient channel |
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| WANG Hong,ZHOU Da-Mai,ZHANG Ai-Jun,ZHANG Yue-Chen and REN Shi-Kui.Moisture migration regularity and new irrigation method in the sandy soil of river ancient channel[J].Chinese Journal of Eco-Agriculture,2006,14(2):177-179. |
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| Authors: | WANG Hong ZHOU Da-Mai ZHANG Ai-Jun ZHANG Yue-Chen and REN Shi-Kui |
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| Institution: | Mountainous Areas Research Institute, Agriculture University of Hebei, Baoding 071001, China |
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| Abstract: | The moisture migration regularity and the new irrigation method in the sandy soil of river ancient channel were studied.The results indicate that the soil water evaporation capacity in 7 days with different treatments of irrigating water quota is not significantly different.The trial in 7-(year) pear trees soil indicates that the sufficient irrigation and the(reduction) of the frequency of irrigation can save water and raise the yield.The soil(moisture) can not make a breakthrough of the(pear) tree's major root system scope as the (irrigating) water quota is 1200m~3/hm~2 and the soil moisture does not (suffice) the peer when the irrigating water(quota) is 600m~3/hm~2 and the peer trees are irrigated 6 times in the growing(period) of the trees.The irrigating water quota of 900m~3/hm~2 and the 4 times irrigation in the growing period of the trees is the suitable method. |
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| Keywords: | Sandy soil Irrigating water quota Soil moisture Evaporate |
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