基于Meta评价控制性分根交替灌溉的作物水分利用效率  

Evaluation of crop water use efficiency for controlled root-dividing alternate irrigation based on Meta-analysis

作　　者：郑健[1,2,3] 潘占鹏 颜斐 冯正江 马彪 ZHENG Jian;PAN Zhanpeng;YAN Fei;FENG Zhengjiang;MA Biao(Western Energy and Environment Research Center, Lanzhou University of Technology, Lanzhou, Gansu 730050, China;Key Laboratory of Energy Supply System Driven by Biomass and Solar Energy of Gansu Province, Lanzhou University of Technology, Lanzhou, Gansu 730050, China;College of Energy and Power Engineering, Lanzhou University of Technology, Lanzhou, Gansu 730050, China)

机构地区：[1]兰州理工大学西部能源与环境研究中心,甘肃兰州730050 [2]兰州理工大学甘肃省生物质能与太阳能互补供能系统重点实验室,甘肃兰州730050 [3]兰州理工大学能源与动力工程学院,甘肃兰州730050

出　　处：《江苏大学学报（自然科学版）》2019年第3期332-337,共6页Journal of Jiangsu University：Natural Science Edition

基　　金：国家自然科学基金资助项目(51509122;51369014);甘肃省高等学校科技成果转化项目(2018D-04);甘肃省自然科学基金资助项目(18JR3RA154);2018年杨凌示范区产学研用协同创新重大项目(2018CXY-14)

摘　　要：为了确定控制性分根交替灌溉(CRDI)对作物水分利用效率(WUE_C)的作用,收集CRDI的相关试验数据,应用Meta分析方法定量分析了不同区域、气候条件、种植条件、灌溉制度和作物类型下CRDI对WUE_C的影响.结果表明:在中国范围内,CRDI提升WUE_C为28.9%,西北地区WUE_C提升最为显著达到了49.29%;年均降水量在200～800 mm的区域,CRDI能够使WUE_C提升29.92%,而在南方地区和年均降水量>800 mm的区域,WUE_C提升不显著;在年均气温高于12℃的区域WUE_C提升更明显,可以达到36.98%;CRDI在温室大棚中WUE_C提升最为显著,达到了53.45%;CRDI技术应用到地面畦灌、固定灌溉、沟灌和滴灌后,其WUE_C分别提升37.03%,21.41%,16.59%和32.56%.可见控制性分根交替灌溉能有效提高WUE_C,但提升率会受到作物种植条件、种植区域的气候条件、灌溉方法和作物种类等因素的影响.To determine the effects of controlled root-dividing alternate irrigation (CRDI) on crop water use efficiency ( WUE C), the test data of CRDI was collected, and the effects of CRDI on WUE C in different regions, climatic conditions, planting conditions, irrigation schemes and crop types were analyzed by Meta-analysis method. The results show that CRDI can increase WUE C by 28.9% in China, and WUE C is increased most significantly by 49.29% in Northwest. In the area where the annual average precipitation is between 200 and 800 mm, CRDI can increase the crop WUE C by 29.92%. However, in the south and the area where the annual average precipitation is greater than 800 mm, the increasing of WUE C is not significant. CRDI significantly increases the WUE C of crops by 36.98% when the average annual temperature is higher than 12 ℃. In the greenhouse, the increasing of WUE C is the most significant by 53.45%. Applying CRDI into flood irrigation, fixed irrigation, furrow irrigation and drip irrigation, the values of WUE C are increased by 37.03%, 21.41%, 16.59% and 32.56%, respectively. CRDI can significantly improve the WUE C of different crops, and it is affected by the physiological growth characteristics of crop and test area.

关 键 词：控制性分根交替灌溉 水分利用效率 提升率 影响因素 META分析 

分 类 号：S275.9[农业科学—农业水土工程]