Gang LUO, Tian RUAN, Cai CHEN, Chao GAO, Peng LI, Song-gen MA, He-li LI, Huan WANG. Agricultural drought and its association with meteorological drought: A case study of the Huaihe River Basin above the Bengbu Sluice, China[J]. Journal of Natural Resources, 2020, 35(4): 977
- Journal of Natural Resources
- Vol. 35, Issue 4, 977 (2020)
Fig. 1. Geographical location map of the study area
Fig. 2. Drought event identification process
Fig. 3. Interannual variation of CWDI and M mean values in the whole growth period from 1961 to 2015
Fig. 4. Interannual variation of CWDI and M mean value in the growth period of winter wheat from 1961 to 2015
Fig. 5. Spatial distribution of CWDI and M indexes above moderate drought level in the whole growth period of winter wheat
Fig. 6. Spatial distribution of CWDI and M indexes in the above moderate drought level and M-K trend test
Fig. 7. Response of winter wheat drought to meteorological drought
Fig. 8. Frequency curve of winter wheat drought and meteorological drought duration and severity (EX is the mean value)
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Table 1. The crop water deficit index (CWDI) and relative moisture (M) index drought classification
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Table 2. Comparison of the consistency between CWDI and M indexes in the growth period of winter wheat (%)
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Table 3. Winter wheat drought and meteorological drought events in 1961-2015
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Table 4. Comparison of measured and simulated values of winter wheat drought events
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Table 5. Recurrence period of drought events based on CWDI and M indexes
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