生态学杂志2024，Vol.43Issue(8)：2414-2420,7.DOI:10.13292/j.1000-4890.202408.039
攀西地区芒果关键生育期干旱指标判识
Drought identification indicators for the critical growth period of mango in Panxi region
摘要
Abstract
Considering water supply and demand situation of mango at different growth stages,the drought identifi-cation indicators of mango at flowering and fruiting stage and fruit expansion stage were determined using meteoro-logical data,phenological data of mango and small samples of mango disaster data in Panxi region by cluster analy-sis and sample distance analysis.The validity of drought identification indicators was verified by T-test,reserved history sample test,typical station,and identification of typical years.The drought-triggering threshold at the flow-ering and fruiting stage and fruit expansion stage were 0.89 and 0.80,respectively.The drought indices extracted based on the drought identification indicators at critical growth stages were consistent with that in historical disaster samples.The identification accuracy of the identification indicators for the reserved historical samples was 81.5％,and the identification accuracy of the indicators for long time-series disaster samples of a typical station was 95％.The drought identification indicators can be used to drought disaster identification in typical years,and the accuracy of the indicator identification in drought areas in typical years was 85.7％.The results can provide technical support for drought monitoring and drought prevention and mitigation of mango in Panxi region.关键词
芒果/水分盈亏指数/干旱指数/指标判识Key words
mango/water budget index/drought index/index identification引用本文复制引用
袁月,陈东东,杜成勋,廖伟,冉津江,栗晓玮..攀西地区芒果关键生育期干旱指标判识[J].生态学杂志,2024,43(8):2414-2420,7.基金项目
高原与盆地暴雨旱涝灾害四川省重点实验室科技发展基金项目(SCQXKJQN202123)和四川省科技厅重点研发项目(2023YFS0441和2023YFS0376)资助. （SCQXKJQN202123）
