Bulletin

CropWatch bulletin
Lower Yangtze regionChina

Authors: 超级管理员 | Edit: Miao

Although it had already been accepted, I have edited this: RG

Lower Yangtze

From July to October, the late rice matured in the center of the region including in Hubei, Fujian, Jiangxi and Hunan provinces, while semi-late rice and maize have been harvested in the north of the region. Crop condition was not favorable compared with the recent five-year average in the crop condition development graph. According to CropWatch agroclimatic and agronomic indicators, the accumulated rainfall and radiation increased by 9% and 4%, respectively, while the temperature was slightly below its fifteen-year average (TEMP,-0.6℃)/. This brought about an increase of the production potential (BIOMSS, 17%). As shown in BIOMSS map, values were 20% below average in the north of this region including Hubei, Jiangsu, Henan province, while it was above average in the south, including east of Hunan, north of Guangdong and Fujian province and south of Jiangxi province. According to NDVI profiles, the crop condition was close to average in 33.7% of the area, mostly distributed in the south of the region including Hunan, Jiangxi and Guangxi province. The crops in the remaining areas suffered from unfavorable condition compared. 8.1% of the total area was significantly below average level, which coincides with the situation depicted by the VCIx map. Overall, the production of crops in the Lower Yangtze region is anticipated to be below but close to average.


Figure 4.10a. China Lower Yangtze crop condition development graph based on NDVI, comparing the July-October 2018 period to the previous season and the five-year average (5YA) and maximum

Figure 4.10b. China Lower Yangtze spatial NDVI patterns for July to October 2018 (compared to the (5YA) (left) and (c) NDVI profiles associated with these spatial patterns (right)

Figure 4.10d. China Lower Yangtze maximum VCI, July-October 2018

Figure 4.10e. China Lower Yangtze biomass, July-October 2018