文献类型：期刊文献

中文题名：气候变化下贵州中西部玉米生态需水量变化研究

英文题名：Ecology Water Demand of Maize in Central and Western Guizhou Province under Climate Change

作者：张新鼎 郜红娟

第一作者：张新鼎

机构：[1]贵州理工学院建筑与城市规划学院,贵州贵阳550003;[2]贵州师范学院地理与资源学院,贵州贵阳550018

第一机构：贵州理工学院建筑与城市规划学院

年份：2019

卷号：39

期号：4

起止页码：50-53

中文期刊名：黔南民族师范学院学报

外文期刊名：Journal of Qiannan Normal University for Nationalities

收录：国家哲学社会科学学术期刊数据库

基金：贵州省教育厅青年科技人才成长项目(黔教合KY字[2017]217);贵州理工学术新苗培养及探索创新项目(黔科合平台人才[2017]5789-23);贵州理工学院高层次人才科研启动项目“气候变化对贵州淡水系统服务的影响”阶段性成果

语种：中文

中文关键词：气候变化;玉米;生态需水量;贵州中西部

外文关键词：climate change;maize;ecological water demand;central and western Guizhou Province

摘要：利用贵州省中西部14个气象观测站1960—2017年的降水量、气压、风速、相对湿度、日照时数、平均气温以及最高和最低气温等逐日观测资料,采用Penman-Monteith模型、线性回归、克里金插值法分析了贵州省中西部58年来玉米生态需水量的时空变化。结果表明:58年间贵州省中西部玉米生态需水量整体呈现不同程度下降趋势,下降幅度表现为拔节-抽雄期>灌浆-成熟期>播种-出苗期。玉米播种-出苗期的年均生态需水量自西南向东北逐渐递减,灌浆-成熟期和拔节-抽雄期则呈现自东向西逐渐递减的规律。贵州省中西部玉米生态需水量的变化趋势整体上表现为中心区域的玉米生态需水量呈上升趋势,外围呈下降趋势,且下降趋势的范围大于上升趋势的范围。
Based on the daily observations data of the precipitation, atmospheric pressure, wind speed, relative humidity, sunshine duration, mean temperature, maximum temperature and minimum temperature from 1960 to 2017 for 14 meteorological stations in central and western Guizhou Province, this paper analyzed the spatial variation of ecological water demand of maize in central and western Guizhou Province in past 58 years by the method of Penman-Monteith model, linear regression and Kriging interpolation.The results showed that the ecological water demand of maize in the central and western Guizhou Province exhibited a declined trend in the past 58 years, and the degree of decline ecological water demand presented a characteristics of jointing-tasseling stage> grouting-mature stage> sowing-out of seedling stage.The annual ecological water demand in the sowing-out of seedling stage gradually decreased from southwest to northeast, and the grouting-mature stage and sowing-out of seedling stage gradually declined from east to west.The increasing region of ecological water demand was mainly in central part of Guizhou Province, while the other parts of Guizhou Province except for central part showed an increasing trend.The spatial range of decreasing region was greater than decreasing regions.