[1]闫映宇,林新慧.灌溉方式对土壤水分运动参数的影响[J].水土保持研究,2011,18(04):160-165.
 YAN Ying-yu,LIN Xin-hui.Effects of Irrigation Modes on Soil Hydraulic Properties[J].,2011,18(04):160-165.
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灌溉方式对土壤水分运动参数的影响()
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《水土保持研究》[ISSN:1005-3409/CN:61-1272/P]

卷:
18卷
期数:
2011年04期
页码:
160-165
栏目:
出版日期:
2099-01-01

文章信息/Info

Title:
Effects of Irrigation Modes on Soil Hydraulic Properties
作者:
闫映宇 林新慧
新疆水土保持生态环境监测总站, 乌鲁木齐 830000
Author(s):
YAN Ying-yu LIN Xin-hui
General Station of Soil and Water Conversation and Eco-environmental Monitoring of Xinjiang, Urumqi 830000, China
关键词:
膜下滴灌地面漫灌水分特征曲线土壤导水率土壤水分扩散率比水容量
Keywords:
drip irrigation under mulchedground irrigationwater retention curvesoil hydraulic conductivitysoil water diffusivityspecific water capacity
分类号:
S152.7+2;S275
摘要:
通过实测和拟合的方法研究了不同灌溉方式对土壤饱和导水率及非饱和土壤水分运动参数的影响。结果表明:膜下滴灌明显改善了土壤导水性能,0-10 cm各土层土壤饱和导水率明显高于地面漫灌,并且两种灌溉方式下土壤饱和导水率都高于裸盐地;不同灌溉方式下,相同含水率所对应的非饱和导水率及非饱和扩散率均不同,0-100 cm各土层都表现为膜下滴灌>地面漫灌>裸盐地。膜下滴灌对土壤水分运动参数的影响,并不是由土壤质地、容重、温度、盐分等因素作用而引起,可能是由于膜下滴灌改变了土壤的团粒结构或土壤中盐分的离子组成而造成的。
Abstract:
Effects of different irrigation modes on soil saturated hydraulic conductivity were investigated by the method of measuring and fitting. The results show that, by drip irrigation under mulch, soil water conductivity was improved significantly, soil saturated hydraulic conductivity in the soil layer (0-100 cm) was much better than that by ground flood irrigation, and also better than that of bare and saline land. Under different irrigation modes, unsaturated hydraulic conductivity and unsaturated diffusivity of the soil layer (0-100 cm) were in the order of drip irrigation under mulch>ground flood irrigation>bare and saline land. Under drip irrigation under mulch, soil hydraulic properties may be influenced by the improvement of soil aggregate structure or the change of chemical composition of soil, rather than by soil texture, soil bulk density, and soil temperature, soil salt.

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备注/Memo

备注/Memo:
收稿日期:2011-1-13;改回日期:2011-2-28。
基金项目:948项目“新疆风水复合侵蚀监测系统引进”(201037)
作者简介:闫映宇(1982- ),男,甘肃省通渭县人,硕士,工程师,主要从事水土保持研究。E-mail:yyy_2009@126.com
通讯作者:林新慧(1960- ),女,新疆人,调研员,主要从事水土保持监测管理工作。E-mail:995390537@qq.com
更新日期/Last Update: 1900-01-01