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华南区 China

Authors: 超级管理员 | Edit: Miao

Crop condition was generally average in southern China during the entire period. The precipitation (RAIN) increased by 12% above average, with the following values at provincial level: Fujian +55%, Guangxi +36% and Guangdong +19%. Temperature (TEMP) dropped by 0.3°C, while radiation (RADPAR) increased by 2%. As a result, potential accumulated biomass increased by 12% on the whole, compared to the five-year average. 

中国南部地区在本监测时段内作物长势总体处于平均水平。其中,降水与平均水平相比偏多12%,具体到省级尺度上如下:福建、广西和广东分别偏多55%,36%和19%。气温偏低0.3°C,光合有效辐射偏高2%。与过去5年平均水平相比,潜在生物量总体偏高12%。

The crop condition development graph based on NDVI shows crop condition in the region was below average in April but that it recovered in May. Although condition dropped again to below average in June, it returned to average in July on average. Nearly all arable land was actually cropped over the region, with the CALF decreasing by only 1 percentage point.

NDVI长势过程线显示该地区作物长势在4月份低于平均水平,5月份开始恢复。尽管在6月份再次降低至平均水平以下,从7月份即开始恢复至平均水平。该地区几乎所有耕地都种植了作物,种植比例仅比近5年平均偏低1%。

The spatial NDVI pattern and profiles indicate overall average condition, except for the central and eastern parts of southern Guangdong and some limited areas in Guanxi, where the crop condition was below average with somewhat lower VCImax of 0.5-0.8. The affected area makes up about 12.9% (7.0% + 5.9%) of arable land in the region.

NDVI空间分布和过程线也表明中国南部地区作物长势总体处于平均水平,只有广东南部的中部和东部部分地区,以及广西的零星地区的作物长势低于平均水平,最佳植被状况指数较低,位于0.5-0.8之间,这些受影响地区约占中国南部地区耕地面积的12.9%。

With the maximum VCI reaching 0.89, crop prospects are favourable except in some limited areas near the centre of the region. 

中国南部地区的最佳植被状况指数达到0.89,除中部的零星地区以外,总体作物长势较好。


(a) 基于NDVI的作物生长过程线

 

(b) NDVI距平空间聚类图(与5年平均相比) 

(c) NDVI距平聚类过程线


(d) 最佳植被状况指数


(e) 潜在生物量