基于水分亏缺率的贵州地区烟草干旱指标  

Drought index of tobacco based on water deficit rate in Guizhou region

作　　者：朱晓萌 张泽中 袁义杰 慎东方 商崇菊[3] 李彦彬 ZHU Xiaomeng;ZHANG Zhezhong;YUAN Yijie;SHEN Dongfang;SHANG Chongju;LI Yanbin(Guizhou Quality and Safety Centre of Water Conservancy Engineering Construction,Guiyang 550002,China;School of Water Conservancy,North China University of Water Resources and Electric Power,Zhengzhou 450046,China;Guizhou Provincial Water Conservation Science and Research Institute,Guiyang 550002,China)

机构地区：[1]贵州省水利工程建设质量与安全中心,贵州贵阳550002 [2]华北水利水电大学水利学院,河南郑州450046 [3]贵州省水利科学研究院,贵州贵阳550002

出　　处：《水利水电科技进展》2021年第5期34-40,88,共8页Advances in Science and Technology of Water Resources

基　　金：国家自然科学基金(51779093);贵州省科技厅项目(KT202001,KT201705)。

摘　　要：为建立贵州地区烟草干旱灾害的监测与评估指标,以贵州烟草不同生育期水分亏缺率与减产率二者建立线性回归方程,结合农业干旱等级划分标准,得到烟草不同生育期干旱指标。结果表明:全生育期水分亏缺率为≤15%、(15%,35%]、(35%,55%]、>55%时,分别发生轻、中、重、严重干旱,对应的减产率分别为≤10%、(10%,20%]、(20%,30%]、>30%;旺长期水分亏缺率为≤35%、(35%,70%]、>70%时,分别发生轻、中、重旱,对应的减产率分别为≤10%、(10%,20%]、(20%,30%];成熟期水分亏缺率为≤35%、(35%,75%]、>75%时,分别发生轻、中、重旱,对应的减产率为≤10%、(10%,20%]、(20%,30%]。In order to construct monitoring and evaluation indexes of tobacco drought disaster in Guizhou region,a linear regression equation was established for the water deficit rate and yield reduction rate of Guizhou tobacco during different growth periods.According to the classification criteria of agricultural drought grade,the drought indexes of tobacco during different growth periods were obtained.The results indicate that when the ranges of the water deficit rate in the whole period were≤15%,(15%,35%],(35%,55%]and>55%,light drought,moderate drought,severe drought and extreme drought occurred,and the corresponding reduction rates were≤10%,(10%,20%],(20%,30%]and>30%,respectively.When the ranges of the water deficit rate in the flourishing period were≤35%,(35%,70%]and>70%,light drought,moderate drought and severe drought occurred,and the corresponding reduction rates were≤10%,(10%,20%]and(20%,30%],respectively.When the ranges of the water deficit rate in the maturing period were≤35%,(35%,75%]and>75%,light drought,moderate drought and severe drought occurred,and the corresponding reduction rate were≤10%,(10%,20%]and(20%,30%],respectively.

关 键 词：干旱指标 烟草 水分亏缺率 减产率 贵州 

分 类 号：S421[农业科学—植物保护] S166