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Authors: 超级管理员 | Edit: zhangxin
Bangladesh experienced good crop conditions during this monitoring period as a result of excess rainfall (RAIN, +72%)during the growing season, even if floods harmed the standing crops in selected localized areas. Even though the temperature (TEMP) was average andphotosynthetically active radiation (RADPAR) was low (-8%) the biomass accumulation potential (BIOMSS) rose to 8% over the recent 5-year average. Thecropped arable land fraction (CALF) remained unchanged. The crop condition developmentgraphs (national NDVI curves) show a situation comparable to the previousfive-year average. The NDVI values increased from early August to October forthe whole country. The maximum VCI ranged from 0.5 to 1, indicating averagecrop condition except some scattered areas in Sylhet, Dhaka and Rajshahi wherethe maximum VCI recorded was below 0.5, indicating poor crop condition.Altogether, CropWatch assesses the overall crop condition is average.
Figure3.7. Bangladesh crop condition, July-October 2015
(a)Crop condition development graph based on NDVI (b)Maximum VCI
(c)Spatial NDVI patterns compared to 5YA (d)NDVI profiles