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PhilippinesMain producing and exporting countries

Authors: 超级管理员 | Edit: zhuliang

During this monitoring period, the harvest of main-season maize and rice in the Philippines started in July and September, respectively, while both second-season maize and second-season rice started to be planted in October. The weather in the Philippines was more humid than usual during the monitoring period. The precipitation (RAIN) and radiation (RADPAR) were about 9% and 3% higher, respectively, compared to the same period in the past 15 years, while the temperatures (TEMP) remained around average. The abundant precipitation was generally favorable for crop growth, resulting in a positive departure of potential biomass by about 2% (BIOMSS). The NDVI time series graph also indicates that the crop growth was consistently below average during the monitoring period. According to the NDVI trend line, there was a significant drop in NDVI in late October, and this was associated with Tropical Storm Nalgae. It made landfall in the Philippines in late October and not only brought record daily rainfall but also caused extensive flooding in Maguindanao province (Maguindanao) on Mindanao Island. Although the intense rainfall in late October may have delayed or disrupted the sowing of second-season corn and second-season rice, its consequences were not evident during this monitoring period. According to the spatial distribution map of VCIx, the VCIx in almost all areas was higher than 0.8. According to the spatial NDVI pattern map, the NDVI in almost all cultivated areas remained near the average level, except for a sudden drop in NDVI due to cloud and rain cover in some areas, indicating generally normal crop growth.


Regional analysis

Based on the cropping systems, climatic zones and topographic conditions, three main agro-ecological regions can be distinguished for the Philippines. They are the Lowlands region (northern islands), the Hilly region (Island of Bohol, Sebu and Negros), and the Forest region (mostly southern and western islands).

The Lowland region (agroecological subzone 155) had higher precipitation (RAIN +7%), near average temperature (TEMP), higher radiation (RADPAR +3%), and higher potential biomass (BIOMSS +3%). The proportion of cultivated land was 100%. The NDVI in general stayed slightly below average during the monitoring period. The VCIx index for the subzone was 0.95 and the CI index was 134. Overall, crop growth in the subzone was generally normal.

In the Hilly region (agroecological subzone 154), the precipitation was above the average of the last 15 years (RAIN +15%). The temperature was lower (TEMP -0.2ºC) and radiation was higher (RADPAR +3%). The potential biomass was higher than the average (BIOMSS +1%) and all cultivated land was planted. NDVI values were significantly lower in early July and September. The VCIx index for this subzone was 0.93. The results indicated that crop growth in this subzone was normal.

The precipitation in the Forest region (agroecological subzone 153) was also more than adequate at 1644 mm. It was higher than the average of the last 15 years  (RAIN +12%), with a higher temperature (TEMP +0.3ºC) and radiation (RADPAR +4%). The potential biomass was   higher (BIOMSS +2%) and the arable land was fully utilized. The NDVI was always slightly below average and the VCIx index was 0.95. Crop growth in this subzone was generally normal.


Figure 3.35 Philippines' crop condition, July- October,2022

(a) Phenology of major crops

(b) Crop condition development graph based on NDVI                     (c) Maximum VCI

(d) Spatial NDVI patterns compared to 5YA                      (e) NDVI profiles

(f) Time series temperature profile (left) and rainfall profile (right)

(g) Crop condition development graph based on NDVI in Lowland region (left) and in the Hilly region (right)

(h) Crop condition development graph based on NDVI in Forest region


Table 3.61 Philippines' agroclimatic indicators by sub-national regions, current season's values, and departure from 15YA, July - October, 2022

RegionRAINTEMPRADPARBIOMSS
Current(mm)Departure from 15YA(%)current(℃)Departure from 15YA(℃)Current(MJ/m2)Departure from 15YA(%)Current(gDM/m2)Departure from 15YA (%)
Forest region16441225.50.31274415642
Hilly region19291526.5-0.21287316441
Lowlands region2028725.40.01206316193


Table 3.62 Philippines' agronomic indicators by sub-national regions, current season's values, and departure from 5YA, July- October, 2022

regionCALFCropping IntensityMaximum VCI
Current(%)Departure from 5YA(%)Current(%)Departure from 5YA(%)Current
Forest region100014530.95
Hilly region1000119-50.93
Lowlands region1000134-100.95