生态种养模式对稻田水足迹的影响  

Effect of ecological cultivation pattern on water footprint of paddy field

作　　者：李雪纯[1] 陈丹[1] 王琳琳 马钰 叶志豪 吴松伟 梁怡帆 LI Xuechun;CHEN Dan;WANG Linlin;MA Yu;YE Zhihao;WU Songwei;LIANG Yifan(College of Agricultural Science and Engineering,Hohai University,Nanjing,Jiangsu 210098,China)

机构地区：[1]河海大学农业科学与工程学院,江苏南京210098

出　　处：《排灌机械工程学报》2023年第2期195-201,共7页Journal of Drainage and Irrigation Machinery Engineering

基　　金：国家重点研发计划项目(2020YFD0900703);中央高校基本科研业务费资助项目(B200203142);江苏省研究生科研创新计划项目(KYCX20-0554);江苏省水利科技项目(2021056)。

摘　　要：以江苏省淮安市涟水县传统稻田、稻虾生态种养田为研究对象,提出了稻田生态种养水足迹核算方法,测算分析了不同种养模式在不同阶段的供、用、排水量,耗水规律和水足迹.研究结果表明:研究区不同种养模式下水稻的灌溉定额、生产水足迹及其组成足迹均存在差异;稻虾生态种养灌溉定额为24 922.95 m3/ha,是传统水稻灌溉定额的5.75倍;水稻生产水足迹为19.9 m3/kg,高于传统水稻生产水足迹11.9 m3/kg;传统水稻的绿水生产水足迹相比最高,而稻虾生态种养的灰水生产足迹最高,且高于绿水和蓝水生产水足迹;从水足迹角度分析,研究区稻虾生态种养模式的用水效率不高,应针对不同用水环节采取适宜的节水减排策略.A water footprint accounting method for the rice-crayfish coculture field, located in Lianshui County of Huai′an City, Jiangsu Province was developed. An integrated view between the water consumption patterns and the blue, green and grey water footprints for the different cultivation patterns at different stages were provided. The results show that there are differences in the irrigation quota, unit production water footprint and the compositions of rice under different patterns. The irrigation quota for the rice-crayfish ecological cultivation is 24 922.95 m~3/ha, which is 5.75 times for the traditional rice cultivation. The water footprint of rice production is 19.9 m~3/kg for the former, much higher than 11.9 m~3/kg for the latter. The green water footprint is the highest in the compositions of production water footprint for the traditional rice. For the rice-crayfish ecological cultivation, the gray water footprint is the highest, far higher than the green and blue water footprint. From the perspective of water footprint, the water use efficiency for the rice-crayfish ecological cultivation in the study areas can be improved though water-saving and emission reduction strategies.

关 键 词：水稻 生态种养 水足迹 农业用水管理 克氏原螯虾 

分 类 号：S277.9[农业科学—农业水土工程]