Bulletin

wall bulletin
OverviewCrop and environmental conditions in major production zones

Authors: 超级管理员 | Edit: zhuliang

Chapter 2 presents the same indicators—RAIN, TEMP, RADPAR, and BIOMSS— as those used in Chapter 1, and combines them with the agronomic indicators—cropped arable land fraction (CALF), maximum vegetation condition index (VCIx), minimum vegetation health index (VHIn) and cropping intensity (CI) — to describe crop production condition in six Major Production Zones (MPZ) across all continents. For more information about these zones and methodologies used, see the quick reference guide in Annex B as well as the CropWatch bulletin online resources at http://www.cropwatch.cn/htm/en/bullAction!showBulletin.action#.


2.1 Overview


Tables 2.1 and 2.2 present an overview of the agroclimatic (Table 2.1) and agronomic (Table 2.2) indicators for each of the six MPZs, comparing the indicators to their fifteen-year and five-year averages, respectively. The text mostly refers simply to "average" with the averaging period implied.


Table 2.1 Agroclimatic indicators by Major Production Zone, current value and departure from 15YA (July -October 2022)


RAINTEMPRADPARBIOMSS

CurrentDeparture  (%)CurrentDeparture(°C)CurrentDeparture  (%)CurrentDeparture (%)
 (mm)(°C)(MJ/m2)(gDM/m2)
West   Africa792-1624.7-0.11045-41212-7
North   America300-1520.90.511340758-11
South   America226-3419.1-0.6999-3603-18
South and   SE Asia1223-1025.60.21136614175
Western   Europe248-1917.41.810156693-7
C. Europe   and W. Russia250-115.90.7875-16801


Note: Departures are expressed in relative terms (percentage) for all variables, except for temperature, for which absolute departure in degrees Celsius is given. Zero means no change from the average value; relative departures are calculated as (C-R)/R*100, with C=current value and R=reference value, which is the fifteen-year average (15YA) for the same period (July to Octoberfor 2007-2021.


Table2.2 Agronomic indicators by Major Production Zone, current season values and departure from 5YA (July -October 2022)


Cropped arable land   fractionMaximum VCI Cropping Intensity

Current (%)Departure  (%)CurrentCurrent (%)Departure  (%)
West   Africa9700.92128-1
North   America91-30.8411210
South   America82-90.721314
South and   SE Asia9710.9215717
Western   Europe88-30.75109-1
C Europe   and W Russia9720.87103-1

Note: See note for Table 2.1, with reference value R defined as the five-year average (5YA) for the same period (July to October) for 2017-2021.