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Authors: 超级管理员 | Edit: qinxl
The reporting period covers the main growing stages for early maize, early soybean, and rice, and the planting of late maize and late soybean as well as the harvesting of wheat. For the whole country, rainfall showed a positive anomaly of +18%, TEMP showed a slight positive anomaly (+0.2℃), RADPAR was at average and BIOMSS showed a 5% positive anomaly. CropWatch subdivides Argentina into eight agro-ecological zones (AEZ) based on cropping systems, climatic zones, and topography; they are identified by numbers on the NDVI departure cluster map. During this monitoring period, most crops were grown in the following four agro-ecological zones: Chaco, Mesopotamia, Humid Pampas, and Subtropical Highlands. The other agro-ecological zones were less relevant for this period. Main crops in Chaco and Subtropical Highlands are soybean and maize. In Pampas and South Mesopotamia, main crops are soybean, maize and wheat, while in North Mesopotamia main crop is rice. RAIN showed a negative anomaly in Mesopotamia (-11%), a slight positive anomaly in Chaco (+4%) and strong positive anomalies in Humid Pampas (+32%) and Subtropical Highlands (+68%). TEMP showed negative anomalies in Chaco (-0.1℃) and Subtropical Highlands (-0.9℃). Positive TEMP anomalies were observed in Humid Pampas (+0.3℃) and Mesopotamia (+0.7℃). Related to the strong positive anomaly in RAIN, Subtropical Highlands showed a strong negative anomaly in RADPAR (-9%). Positive anomalies were observed in Chaco (+2%) and Mesopotamia (+5%), while Pampas showed no anomaly in RADPAR. BIOMSS showed negative anomalies in Chaco (-1%) and Mesopotamia (-4%), and positive anomalies in Humid Pampas (+10%) and Subtropical Highlands (+12%). CALF showed no anomaly in Mesopotamia and a positive anomaly (+2%) in Humid Pampas, being almost complete in both regions. Chaco and Subtropical highlands showed negative anomalies of -3% and -9%, respectively. VCIx showed regular values for Chaco (0.72), Subtropical Highlands (0.72) and Mesopotamia (0.78) and good conditions in Humid Pampas (0.87). For the whole country, crop condition development graph based on NDVI showed during most of the period values below average. Observed values were very similar to those observed during the last growing season. Humid Pampas showed above average values during October and beginning November, near average values since end November up to December and below average values during January. Chaco showed for all the reporting period, below average conditions. Values up to beginning December were higher than the last growing season, while values since end of December were below those observed in the last growing season mainly due to the shortage of rainfall in December and early January. Moisture tended to be normal thanks to favorable rainfall in mid and late-January which might accelerate crop development in Chaco region. Mesopotamia, which is major rice producing region, showed no anomalies during October and beginning November, but negative anomalies since then. Since end December, values were also lower than the last growing season. Subtropical Highlands showed below average values during all the reporting period, presenting values also lower than the last growing season since end December. Rainfall profiles showed near average conditions during most of the period in Argentina, except for end of December and beginning of January, when higher negative anomalies were observed. Chaco and Mesopotamia showed strong negative anomalies in precipitation at the beginning of December and January. Pampas showed also negative anomalies at end December and beginning January, and Subtropical highlands at beginning January only. TEMP profile changed between positive and negative anomalies along the reporting period with higher frequency of negative anomalies. Spatial distribution of NDVI profiles showed several homogeneous patterns. North of the country was dominated by the red profile, which showed below average conditions along all the reporting period, presenting its lowest values during end December and January. This profile was also observed in Center East of Pampas. Blue profile was observed in South East and North West Pampas and West Subtropical Highlands and showed below average values except for the beginning and the end of the reporting period where no anomalies were observed. Most of the Pampas was dominated by a mixture of dark green and light green profiles. The first profile showed average values in general and above average values in November and December. Light green profile showed negative anomalies during October and November and recovered to above average values since December. Maximum VCI showed quite good conditions (values higher than 0.8) in Humid Pampas, excepting an area in South West of Buenos Aires province which showed poor conditions (values below 0.5). Good conditions were also observed in West Subtropical Highlands, North East Chaco and South Mesopotamia. Argentina showed variable conditions among zones. Pampas, the main agricultural region, showed in general good conditions for crop growing with NDVI profiles above or near average and high VCIx values. Mesopotamia and Chaco showed negative anomalies in NDVI, precipitation and intermediate VCIx values. Subtropical Highlands showed also negative anomalies and variable VCIx values. Figure 3.7 Argentina’s crop condition, October 2021 – January 2022 |
a. Phenology of major crops
b. Crop condition development graph based on NDVI
c. Crop condition development graph based on NDVI (Pampas)
d. Crop condition development graph based on NDVI (Chaco)
e. Crop condition development graph based on NDVI (Mesopotamia)
f. Crop condition development graph based on NDVI (Subtropical Highlands)
g. Time series rainfall pofile (Pampas)
h. Time series rainfall pofile (Chaco)
i. Time series rainfall pofile (Mesopotamia)
j. Time series rainfall pofile (Subtropical Highlands)
k. Spatial distribution of NDVI profiles
l. Maximum VCI
Table 3.6 Argentina’s agroclimatic indicators by sub-national regions, current season’s values and departure from 15YA, October 2021 – January 2022
Region | RAIN | TEMP | RADPAR | BIOMSS | |||||
Current (mm) | Departure (%) | Current (°C) | Departure (°C) | Current (MJ/m2) | Departure (%) | Current (gDM/m2) | Departure (%) | ||
Chaco | 559 | 4 | 25.0 | -0.1 | 1397 | 2 | 1175 | -1 | |
Mesopotamia | 522 | -11 | 23.8 | 0.7 | 1487 | 5 | 1139 | -4 | |
Humid Pampas | 377 | 32 | 21.6 | 0.3 | 1508 | 0 | 1013 | 10 | |
Subtropical highlands | 1239 | 68 | 20.9 | -0.9 | 1235 | -9 | 1311 | 12 | |
Table 3.7 Argentina’s agronomic indicators by sub-national regions, current season’s values and departure from 5YA, October 2021 – January 2022
Region | Cropped arable land fraction | Maximum VCI | |
Current (%) | Departure (%) | Current | |
Chaco | 93 | -3 | 0.72 |
Mesopotamia | 100 | 0 | 0.78 |
Humid Pampas | 99 | 2 | 0.87 |
Subtropical highlands | 83 | -9 | 0.72 |