微咸水滴灌对土壤水盐运移影响的研究
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摘要
目的:研究田间条件下微咸水滴灌对土壤水盐运移的影响。方法:通过在河海大学节水园区内栽培番茄小区试验,对3种滴头流量(2、3、4L/h)及2种灌溉水矿化度(2、4g/L)对微咸水点源滴灌入渗后的土壤水盐运移进行研究。结果:在纵向及水平向距离滴头5～15cm土层,土壤含水率随灌溉水矿化度及滴头流量的增大而增大;随着灌溉水矿化度的增大和土层深度增加,盐分累积量也越大;滴头流量越小,表层脱盐效果越好。结论:微咸水滴灌最好采用较小的灌溉水矿化度和滴头流量。
Objective:To study the effects of brackishwater drip irrigation on soil water andsalt movement in field.Method:Field experiments of tomatoes were conducted to investigate the effects of dripper flow(2,3,4 L/h)and brackish water salinity(2,4 g/L)onsoil water andsalt movement after the point source infiltration ofbrackish water in Water-saving Park of Hohai University. Result:With the increase of irrigation watersalinity anddripper flow,soil water content gradually increased in the soil layer,which is 5-15 cm from the emitter in both vertical and horizontal directions.Soil salt accumulation increased with the increase of brackish water salinity and soil depth. The surface soil achieve better desalination effect with lower dripper discharge rate. Conclusion:Usingless brackish water salinity and lower dripper flow is better in brackish water drip irrigation.
Objective:To study the effects of brackishwater drip irrigation on soil water andsalt movement in field.Method:Field experiments of tomatoes were conducted to investigate the effects of dripper flow(2,3,4 L/h)and brackish water salinity(2,4 g/L)onsoil water andsalt movement after the point source infiltration ofbrackish water in Water-saving Park of Hohai University. Result:With the increase of irrigation watersalinity anddripper flow,soil water content gradually increased in the soil layer,which is 5-15 cm from the emitter in both vertical and horizontal directions.Soil salt accumulation increased with the increase of brackish water salinity and soil depth. The surface soil achieve better desalination effect with lower dripper discharge rate. Conclusion:Usingless brackish water salinity and lower dripper flow is better in brackish water drip irrigation.
引文
[1]陈书飞,何新林,汪宗飞,等.微咸水滴灌研究进展[J].节水灌溉,2010(2):6-9.
[2]赖永明,洪林,陈浩,等.咸水灌溉影响及改善措施研究进展[J].节水灌溉,2015(12):55-59.
[3]侯振安,王艳娜,龚江,等.干旱区咸水滴灌土壤盐分的分布与积累特征[J].土壤通报,2008(1):16-24.
[4]王艳娜,侯振安,龚江,等.咸水滴灌对土壤盐分分布、棉花生长和产量的影响[J].石河子大学学报:自然科学版,2007,25(2):158-162.
[5]周青云,王仰仁.半干旱区滴头流量对土壤水分变化影响的研究[J].天津农学院学报,2010,17(1):14-18.
[6]马文军,程琴娟,李良涛,等.微咸水灌溉下土壤水盐动态及对作物产量的影响[J].农业工程学报,2010,26(1):73-8O.
[7]吴忠东,王全九.微咸水连续灌溉对冬小麦产量和土壤理化性质的影响[J].农业机械学报,2010,(9):36-43.
[8]商艳玲.不同滴头流量下再生水灌溉对土壤水分运移规律的影响[J].甘肃水利水电技术,2015,51(6):15-18.
[9]曾路生,石元亮.碱性矿化水淋洗对土壤盐碱化及小麦生长的影响[J].土壤与环境,2000,9(2):120-124.
[10]马东豪,王全九,来剑斌.膜下滴灌条件下灌水水质和流量对土壤盐分分布影响的田间试验研究[J].农业工程学报,2005,21(3):42-46.
[11]安巧霞,孙三民,徐镕,等.不同流量对间接地下滴灌湿润体特征的影响[J].人民黄河,2016,38(6):154-156.
[12]潘延鑫,袁成福.不同灌溉水矿化度对土壤水盐动态及春玉米产量影响研究[J].南昌工程学院学报,2017,36(1):37-41.
[13]袁成福.灌溉定额和灌溉水矿化度对土壤水盐动态影响研究[J].江西水利科技,2017,43(2):79-83.
[2]赖永明,洪林,陈浩,等.咸水灌溉影响及改善措施研究进展[J].节水灌溉,2015(12):55-59.
[3]侯振安,王艳娜,龚江,等.干旱区咸水滴灌土壤盐分的分布与积累特征[J].土壤通报,2008(1):16-24.
[4]王艳娜,侯振安,龚江,等.咸水滴灌对土壤盐分分布、棉花生长和产量的影响[J].石河子大学学报:自然科学版,2007,25(2):158-162.
[5]周青云,王仰仁.半干旱区滴头流量对土壤水分变化影响的研究[J].天津农学院学报,2010,17(1):14-18.
[6]马文军,程琴娟,李良涛,等.微咸水灌溉下土壤水盐动态及对作物产量的影响[J].农业工程学报,2010,26(1):73-8O.
[7]吴忠东,王全九.微咸水连续灌溉对冬小麦产量和土壤理化性质的影响[J].农业机械学报,2010,(9):36-43.
[8]商艳玲.不同滴头流量下再生水灌溉对土壤水分运移规律的影响[J].甘肃水利水电技术,2015,51(6):15-18.
[9]曾路生,石元亮.碱性矿化水淋洗对土壤盐碱化及小麦生长的影响[J].土壤与环境,2000,9(2):120-124.
[10]马东豪,王全九,来剑斌.膜下滴灌条件下灌水水质和流量对土壤盐分分布影响的田间试验研究[J].农业工程学报,2005,21(3):42-46.
[11]安巧霞,孙三民,徐镕,等.不同流量对间接地下滴灌湿润体特征的影响[J].人民黄河,2016,38(6):154-156.
[12]潘延鑫,袁成福.不同灌溉水矿化度对土壤水盐动态及春玉米产量影响研究[J].南昌工程学院学报,2017,36(1):37-41.
[13]袁成福.灌溉定额和灌溉水矿化度对土壤水盐动态影响研究[J].江西水利科技,2017,43(2):79-83.