| 摘要: |
| 徐州现状灌排模式难以解决农田节水、超设计标准暴雨涝渍灾害和面源污染问题，为实现农田节水、蓄雨、排涝、降渍、防污的系统治理，在“以水定地”确定灌溉发展规模和作物种植布局、易涝渍风险度分区评估、试验确定主要作物土壤水分适宜控制指标的基础上，于2019—2021年开展了不同类型易涝农田灌排蓄渗降系统治理试验，提出了徐州易涝农田灌排蓄渗降系统治理创新技术体系，形成了5种不同类型易涝农田适宜的治理模式。相比常规灌排模式，灌排蓄渗降系统治理模式能够有效减少灌排水量、灌排水次数、作物涝渍风险和面源污染。灌排蓄渗降系统治理模式具有节约灌溉用水、提高雨水利用率、减排防污、增加浅层地下水量、减少水土流失等优势。 |
| 关键词: 易涝农田；系统治理；灌排蓄渗降新技术 |
| DOI：10.13522/j.cnki.ggps.2023487 |
| 分类号: |
| 基金项目: |
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| Research on Innovative Technology System and Governance Model of Irrigation, Drainage, Storage, and Seepage Reduction System for Waterlogged Farmland in Xuzhou |
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LIANG Sen, CAO Bin, HAN Li
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1. Xuzhou River and Lake Management Center, Xuzhou 221018, China;
2. Xuzhou Water Conservancy Project Management Center, Xuzhou 221018, China
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| Abstract: |
| The current irrigation and drainage mode in Xuzhou can not completely solve the problems of farmland irrigation water saving, rainstorm waterlogging disasters exceeding the design standard and non-point source pollution control. In order to comprehensively and accurately implement the “sixteen word” water control idea, and achieve systematic management of farmland water saving, rain storage, drainage, waterlogging reduction, and pollution prevention. On the basis of determining the scale of irrigation development and crop planting layout through “water based land allocation”, assessing the risk of waterlogging,conducting experiments to determine suitable soil moisture control indicators for major crops, and developing innovative technological facilities for irrigation, drainage, storage, and infiltration reduction in farmland,a comparative experiment was conducted between 2019 and 2021 on the treatment of irrigation, drainage, storage, and infiltration systems in different types of waterlogging prone farmland. An innovative technology system for the treatment of irrigation, drainage, storage, and infiltration systems in Xuzhou was proposed, forming five suitable system treatment models for different types of waterlogging prone farmland. The experiment shows that compared to conventional irrigation and drainage modes, the irrigation and drainage system control mode can effectively reduce irrigation and drainage water volume, irrigation and drainage frequency, irrigation and drainage labor, crop waterlogging risk, and non-point source pollution. The governance model of irrigation, drainage, storage, and infiltration system has advantages such as saving irrigation water, improving rainwater utilization rate, reducing emissions and pollution, increasing shallow groundwater volume, reducing soil erosion, and saving labor and costs. |
| Key words: waterlogged farmland; system governance; new technology for irrigation, drainage, storage, and seepage reduction |
