The current monitoring season (July to October) covers the harvest of all spring crops in Northeast China. Maize, rice and soybeans reached maturity in August and September in Heilongjiang, Jilin and Liaoning Provinces, and the harvest had been completed by the end of October. CropWatch Agroclimatic Indicators (CWAIs) have shown that the precipitation greatly deviated from the average level (46% above average) and the temperature was slightly lower than the average level (-0.1°C). The photosynthetically active radiation was lower by 9%. Affected by typhoon Bawi, Maysak and Haishen, the precipitation in late August to September was significantly higher than the average especially in Heilongjiang and Jilin provinces. As for biomass, it was below the average level in most areas in Northeast China mainly due to below-average solar radiation. Only few areas in Jilin and Liaoning were slightly above average, and the overall potential biomass was 6% below average.  

In general, the crop conditions during the monitoring period were below the 5YA. VCIx was above 0.8 in most areas in Northeast China during the current monitoring season. But affected by typhoons Bawi, Maysak and Haishen, the crop conditions in most areas of Heilongjiang and Jilin provinces were below average from August to October, especially those areas affected by flooding and lodging due to excess precipitation. 

Figure 4.7 Crop condition China Northeast region,  July-October 2020

（a） Time series rainfall profile

（b） Time series temperature profile

（c） Crop condition development graph based on NDVI

（d） Spatial distribution of NDVI profiles

（e） Potential biomass departure from 5YA

（f） Maximum VCI