河南农业科学2017，Vol.46Issue(2)：153-160,8.DOI:10.15933/j.cnki.1004-3268.2017.02.032
基于DSSAT模型的河南省冬小麦需水量分析
Analysis on Water Demand of Winter Wheat in Henan Province Based on DSSAT Model
摘要
Abstract
In order to quantitatively evaluate the change of winter wheat water requirement in different regions of Henan province,DSSAT model was applied to simulate the winter wheat yield,evapotranspiration ( ET) , transpiration ( EP ) and soil evaporation ( ES ) under full irrigation ( FI ) and no irrigation ( NI ) conditions in 15 ecological points for 10 consecutive years ( 2003 to 2012 ) in Henan province. The distribution of irrigation production and the water productivity were analyzed,and the average water demand and water shortage in different ecological points were calculated. The results showed that the average yield of winter wheat was 7847—9565 kg/ha,ET value was 445—539 mm,EP value was 319—380 mm,ES value was 96—166 mm and water productivity was 1. 67—1. 98 kg/(ha·m3)under FI condition. The average yield of winter wheat was 1927—6260 kg/ha,ET value was 209—370 mm,EP was 66—244 mm,ES was 120—195 mm,and water productivity was 0. 79—2. 17 kg/(ha·m3)under NI condition. The increased yield by irrigation was 1594—6698 kg/ha in 15 ecological points, which was overall higher in north and middle region of Henan province,while lower in the south region. The average value of water demand was 395—452 mm in 15 ecological points, the water demand were relatively lower in middleeast and south region of Henan provine. The average value of water shortage was 76—282 mm,the water shortage for winter wheat was overall more in the north region of Henan province,while fewer in the south region. The above research results could provide reference for the development of quantitative management measures of winter wheat in Henan province.关键词
河南省/冬小麦/DSSAT模型/需水量/时空分布Key words
Henan province/winter wheat/DSSAT model/water demand/spatial-temporal distribution分类
农业科技引用本文复制引用
陈丹丹,李国强,张杰,臧贺藏,胡峰,郑国清..基于DSSAT模型的河南省冬小麦需水量分析[J].河南农业科学,2017,46(2):153-160,8.基金项目
河南省科技攻关项目( 152102110134 ) （ 152102110134 ）
河南省重大科技专项( 121100110900 ) （ 121100110900 ）
河南省重点科技攻关计划项目(162102210378) （162102210378）
河南省超级产粮大省奖励资金扶持粮油良种培育项目(推广类)(ycm201513126) （推广类）
