1.石河子大学水利建筑工程学院,新疆 石河子 832000
2.新疆生产建设兵团第九师水文水资源管理中心,新疆 额敏 834600
王政东(2001年生),男;研究方向:农业水土资源高效利用;E-mail:2574824765@qq.com
范文波(1975年生),男;研究方向:节水灌溉及农业水土资源高效利用;E-mail:fwb205@163.com
收稿:2025-09-23,
修回:2025-11-16,
录用:2025-12-23,
网络出版:2026-01-21,
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王政东, 范文波, 胡子涛, 等. 新疆额敏灌区砂质壤土滴灌线源入渗规律[J/OL]. 中山大学学报(自然科学版)(中英文), 2026,1-7.
WANG Zhengdong, FAN Wenbo, HU Zitao, et al. Infiltration characteristics of line-source drip irrigation in sandy loam soil, Emin irrigation district, Xinjiang[J/OL]. Acta Scientiarum Naturalium Universitatis Sunyatseni, 2026, 1-7.
王政东, 范文波, 胡子涛, 等. 新疆额敏灌区砂质壤土滴灌线源入渗规律[J/OL]. 中山大学学报(自然科学版)(中英文), 2026,1-7. DOI: 10.11714/acta.snus.ZR20250207.
WANG Zhengdong, FAN Wenbo, HU Zitao, et al. Infiltration characteristics of line-source drip irrigation in sandy loam soil, Emin irrigation district, Xinjiang[J/OL]. Acta Scientiarum Naturalium Universitatis Sunyatseni, 2026, 1-7. DOI: 10.11714/acta.snus.ZR20250207.
为探究线源滴灌下的土壤水分运移规律,以新疆额敏灌区砂壤土为研究对象,利用室内土槽装置进行三滴头线源入渗试验。试验设置了3个滴头间距(10、20、30 cm)与3个滴头流量(1.0、1.5、2.0 L/h)共9个处理组,监测了6 h滴水过程中的湿润锋动态运移情况。结果表明:1)水平与垂直湿润锋运移距离与入渗时间均符合幂函数关系(
R
²
>
0.98)。2)在相同滴头间距下,流量越大,湿润锋交汇时间越短(最短1 min)且交汇时垂直入渗深度越浅(最浅4.2 cm),但滴灌结束时的最终垂直入渗深度越深(最深39 cm)。3)在相同滴头流量下,间距越大,湿润锋交汇时间越长(最长55 min)且交汇时垂直入渗深度越深(最深11.5 cm),但滴灌结束时的最终垂直入渗深度越浅(最浅23.1 cm)。本研究阐明了滴头流量与间距对湿润体形态的协同调控机制,可为额敏灌区滴灌系统的参数优化与设计提供科学依据。
To investigate soil water movement under line-source drip irrigation, a study was conducted using an indoor soil tank setup with three emitters on sandy loam soil from the Emin Irrigation District in Xinjiang. The experiment included three emitter spacings (10, 20, and 30 cm) and three emitter flow rates (1.0, 1.5, and 2.0 L/h), resulting in a total of nine treatments. The wetting front dynamics were monitored over a 6 h irrigation period. The results showed that: 1) Both the horizontal and vertical wetting front movement distances were best described by a power function of infiltration time (
R
²
>
0.98). 2) At the same emitter spacing, higher flow rates resulted in shorter wetting front convergence times (the shortest being 1 min) and shallower vertical infiltration depths at convergence (the shallowest being 4.2 cm). However, they led to greater final vertical infiltration depths at the end of the irrigation period (up to 39 cm). 3) At the same emitter flow rate, larger spacings led to longer wetting front convergence times (up to 55 min) and deeper vertical infiltration at the moment of convergence (up to 11.5 cm). However, they resulted in smaller final vertical infiltration depths at the end of irrigation (as shallow as 23.1 cm). This study elucidates the synergistic mechanism of emitter flow rate and spacing on the wetting pattern, providing a scientific basis for optimizing drip irrigation system parameters and design in the Emin Irrigation District.
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