不同节水灌溉方式下的黑龙江省水稻节水减排潜力评估  

Evaluation of Water Saving and Emission Reduction Potential of Rice in Heilongjiang Province Under Different Water-saving Irrigation Methods

作　　者：王光耀 刘巍[2,3] 雷波[2,3] 杜丽娟[2,3] 徐征和 WANG Guang-yao;LIU Wei;LEI Bo;DU Li-juan;XU Zheng-he(College of Water Conservancy and Environment,University of Jinan,Jinan,250022,China;Department of Irrigation and Drainage,China Institute of Water Resources and Hydropower Research,Beijing 100048,China;State Key Laboratory of Simulation and Regulation of Water Cycle in River Basins,China Institute of Water Resources and Hydropower Research,Beijing 100048,China)

机构地区：[1]济南大学水利与环境学院,济南250022 [2]中国水利水电科学研究院水利所,北京100048 [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,北京100048

出　　处：《节水灌溉》2023年第11期34-38,共5页Water Saving Irrigation

基　　金：国家自然科学基金项目(52109049);中国水科院基本科研业务费专项项目(ID110145B0012022)。

摘　　要：为探究黑龙江省不同节水灌溉方式下水稻节水减排潜力,基于黑龙江省水稻现状传统淹灌(TI)方式下的灌溉用水量和CH4排放量,收集相关试验研究数据,利用IPCC指南的中国官方省级温室气体清单方法计算水稻湿润灌溉(MI)、干湿交替灌溉(AWD)、间歇灌溉(II)、控制灌溉(CI)下产生的CH4排放量,继而计算出不同节水灌溉方式下的节水潜力和CH4减排潜力。结果表明:不同节水灌溉方式对水稻灌溉用水量和CH4排放影响明显,水分管理模式有利于减少水稻的用水量和CH4排放量;节水潜力由大到小依次为MI、AWD、CI、II,分别为25.03%、15.65%、10.80%、5.05%;减排潜力由大到小依次为AWD、MI、CI、II,分别为50.77%、46.30%、45.25%、38.14%;干湿交替灌溉(AWD)是减少水稻综合温室效应的有效措施。研究结果可为黑龙江省水稻节水减排提供参考依据。In order to explore the potential of water-saving and emission reduction of rice under different water-saving irrigation methods in Heilongjiang Province,the study analyzed the irrigation water consumption and CH4 emission of the traditional flooding irrigation(TI)method in Heilongjiang Province,collecting relevant experimental data on rice.The Chinese official provincial greenhouse gas inventory method of IPCC guidelines was used to calculate the CH4 emissions generated under wet irrigation(MI),dry-wet alternate irrigation(AWD),intermittent irrigation(II),and controlled irrigation(CI),and then the water-saving potential and CH4 emission reduction potential under different water-saving irrigation methods.The results showed that different water-saving irrigation methods had obvious effects on rice irrigation water consumption and CH4 emission,and the water management mode was beneficial in reducing rice water consumption and CH4 emission.The water-saving potential from large to small is MI,AWD,CI,and II,which are 25.03%,15.65%,10.80%,and 5.05%respectively.The emission reduction potential from large to small is AWD,MI,CI,and II,which are 50.77%,46.30%,45.25%,and 38.14%respectively.Dry-wet alternate irrigation(AWD)is an effective measure to reduce the comprehensive greenhouse effect of rice.The research results can provide a reference for water saving and emission reduction of rice in Heilongjiang Province.

关 键 词：节水灌溉 黑龙江省 水稻 节水减排潜力 

分 类 号：S511.4[农业科学—作物学]