Bulletin

wall bulletin
OverviewCrop and environmental conditions in major production zones

Authors: 超级管理员 | Edit: qinxl

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), and minimum vegetation health index (VHIn) — 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 and 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 (October 2022-January 2023)


RAINTEMPRADPARBIOMSS

CurrentDeparture  (%)CurrentDeparture(°C)CurrentDeparture  (%)CurrentDeparture (%)
 (mm)(°C)(MJ/m2)(gDM/m2)
West   Africa163-2224.5-0.61220-1608-9
North   America301-15.80.6521-24795
South   America397-5523.70.613432974-22
South   and SE Asia294020.5-0.1103726161
Western   Europe353-27.11.631835778
C.   Europe and W. Russia25911.21.2222-43743

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 (October of the previous year to Januaryfor 2008-2022.


Table2.2 Agronomic indicators by Major Production Zone, current season values and departure from 5YA (October 2022-January 2023)


Cropped arable land   fractionMaximum VCI 

Current (%)Departure  (%)Current
West   Africa9500.89
North   America61-90.72
South   America95-40.80
South   and SE Asia9710.88
Western   Europe9310.90
C. Europe   and W. Russia8180.84

Note: See note for Table 2.1, with reference value R defined as the five-year average (5YA) for the same period (October of the previous year to January) for 2018-2022.