玉米浅埋滴灌工程综合效益及对地下水位影响分析:以科尔沁区为例  被引量:3

Comprehensive benefits of shallow covered drip irrigation project and its impact on groundwater dynamic change in corn field of Keerqin district

在线阅读下载全文

作  者:吴梦茜 李桂玲 蔡甲冰[3] 魏征[3] 李益农[3] 于颖多[3] WU Mengxi;LI Guiling;CAI Jiabing;WEI Zheng;LI Yinong;YU Yingduo(College of Water Conservancy and Hydropower Engineering,Sichuan Agricultural University,Ya’an 625014,China;Water Affairs Bureau of Keerqin district,Tongliao City,Inner Mongolia Autonomous Region,Tongliao 028000,China;State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin,China Institute of Water Resources and Hydropower Research,Beijing 100038,China)

机构地区:[1]四川农业大学水利水电学院,四川雅安625014 [2]内蒙古自治区通辽市科尔沁区水务局,内蒙古通辽028000 [3]中国水利水电科学研究院流域水循环模拟与调控国家重点实验室,北京100038

出  处:《中国水利水电科学研究院学报》2021年第5期490-498,共9页Journal of China Institute of Water Resources and Hydropower Research

基  金:国家自然科学基金项目(51679254);地方合作项目(节0203302018)。

摘  要:内蒙古自治区通辽市科尔沁区近年来完成100万亩农田由传统地面灌(管灌)转为浅埋滴灌的高效节水工程建设和改造。本文根据该工程实施2年来的实地调研和2010—2019年地下水观测资料,以常规管灌为对照,采用层次分析法,从节水、经济和生态等方面对浅埋滴灌技术和高效节水工程进行综合效益评价,并对地下水埋深的变化情况及影响进行了分析。研究结果表明,2018年和2019年浅埋滴灌技术比管灌技术分别节水41.83%和37.66%,灌溉水生产率提高1倍以上,净收益增加51.96%和49.88%。地下水水位监测数据对比可知,地下水埋深下降速率由工程实施前0.36 m/a下降至0.24 m/a,浅埋滴灌工程实施能明显减缓地下水埋深下降速率。浅埋滴灌技术的综合效益均高于管灌,可在本地区或者相似区域推广应用。Due to the stresses of low agricultural irrigation efficiency and excessive groundwater abstraction,the Shallow Covered Drip Irrigation Project was completed,which has replaced the traditional surface irrigation(pipe irrigation) in 1 million mu farmland in recent years,in Keerqin District of Tongliao City,inner Mongolia. It also can resolve the problem of residual film pollution caused by mulched drip irrigation. Typical field surveys have been carried out for 2 years since the project was implemented, and the groundwater depth data come from the monitoring system during the period of 2010 to 2019. Then the comprehensive benefits of shallow covered drip irrigation project and its impact on groundwater dynamic change in corn field were analyzed and evaluated with the comparison of traditional pipe irrigation. The survey results show that water-saving is 41.83% and 37.66%,net income increases by 51.96% and 49.88%,and irrigation water use efficiency increases doubly compared with pipe irrigation in 2018 and 2019,respectively.According to the groundwater data monitored,the decline rate of groundwater depth is reduced from 0.36 m/a to 0.24 m/a after the implementation of the project. The Shallow Covered Drip Irrigation Project can reduce the decline rate of groundwater depth significantly. The comprehensive benefits of shallow covered drip irrigation technology are higher than pipe irrigation,and can be promoted and applied in this area or other similar region.

关 键 词:浅埋滴灌 玉米 工程综合效益 地下水埋深 科尔沁区 

分 类 号:S275[农业科学—农业水土工程]

 

参考文献:

正在载入数据...

 

二级参考文献:

正在载入数据...

 

耦合文献:

正在载入数据...

 

引证文献:

正在载入数据...

 

二级引证文献:

正在载入数据...

 

同被引文献:

正在载入数据...

 

相关期刊文献:

正在载入数据...

相关的主题
相关的作者对象
相关的机构对象