Impact of Droughts on Winter Wheat Yield in Different Growth Stages during 2001–2016 in Eastern China

• DOI: 10.1007/s13753-018-0187-4
• Publication Date: 2018-09-20T16:27:46Z
• Authors: Huiqian Yu; Qiang Zhang; Peng Sun; Changqing Song
• Keywords: Winter wheat

Remote sensing can provide near real-time and dynamic monitoring of drought. The drought severity index (DSI), based on the normalized difference vegetation (NDVI) evapotranspiration/potential evapotranspiration (ET/PET), has been used for monitoring. This study examined relationship between DSI winter wheat yield prefecture-level cities in five provinces eastern China during 2001–2016. We first analyzed spatial temporal distribution droughts area. Then correlation coefficient drought-affected area detrended was quantified impact different intensities growth stages investigated. results show that incipient wintering period no significant wheat, while moderate same reduce yield. Drought affects significantly flowering filling stages. Droughts higher intensity have more negative effects wheat. Monitoring irrigation is critical these periods to ensure normal important practical implications planning food security.