王玥,王磊,王恩田,王朔,谢天麒,余殿

• 1:宁夏大学西北退化生态系统恢复与重建教育部重点实验室
• 2:宁夏大学西北土地退化与生态恢复国家重点实验室培育基地
• 3:宁夏大学生态环境学院
• 4:宁夏大学农学院

摘要(Abstract)：

【目的】借助SWAT模型模拟长时间序列优势分析荒漠湿地小流域土壤储水量的时空格局变化，为小流域生态植被建设提供科学依据。【方法】通过构建适用于荒漠湿地小流域的SWAT模型，模拟南海子小流域0～2.5 m土层的土壤储水量变化趋势，揭示不同植被类型和不同土壤类型土壤储水量时空变化特征。【结果】流域土壤储水量2020—2022年年内变化均呈现先上升而后下降趋势，月均土壤储水量范围为25.95～103.66 mm之间；各月份波动较大，与降水呈现明显的正相关；流域土壤储水量具有明显空间异质性，不同植被类型土壤储水量值总体表现为灌木>乔木>草本。【结论】结果表明：降水波动是引起土壤储水量变化的首要因素，土壤储水量具有随降水波动的明显季节性变化；流域土壤储水量在空间上呈现自西北向东南增加的趋势，草地对降水响应最敏感，林地对降雨的响应最为平稳；草甸土、风沙土、黄绵土、灰钙土4种土壤类型由于降雨的季节性波动均呈现相应的季节变化过程，但不同土壤类型对降水的响应存在差异。通过分析南海子荒漠湿地小流域土壤储水量变化特征，为荒漠地区区域水资源合理配置和指导干旱半干旱区开展科学的植被恢复工作提供理论依据。

关键词(KeyWords)： 土壤储水量;SWAT;时空变化;荒漠湿地;降水;水资源;小流域;干旱半干旱地区

Abstract:

Keywords:

基金项目(Foundation): 国家重点研发计划项目(2021YFD1900600);; 宁夏重点研发项目(2019BFG02022,2021BEG03008);; 宁夏领军人才项目(2021GKLRLX13);; 宁夏回族自治区西部一流学科建设项目(NXYLXK2017B06)

作者(Author): 王玥,王磊,王恩田,王朔,谢天麒,余殿

DOI: 10.13928/j.cnki.wrahe.2023.12.009

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