Bulletin

wall bulletin
OverviewCrop and environmental conditions in major production zones

Authors: 超级管理员 | Edit: mazh

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 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 (Januray-April 2022)


RAINTEMPRADPARBIOMSS

CurrentDeparture  (%)CurrentDeparture(°C)CurrentDeparture  (%)CurrentDeparture (%)
 (mm)(°C)(MJ/m2)(gDM/m2)
West   Africa112-1327.0-0.213311594-3
North   America343-14.0-0.57742442-8
South   America483-4323.10.511933996-14
South   and SE Asia144323.50.0121115823
Western   Europe254-215.30.46185497-6
C. Europe   and W. Russia26850.41.2458-6369-1

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 (Januray to Aprilfor 2007-2021.


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


Cropped arable land   fractionMaximum VCI 

Current (%)Departure  (%)Current
West   Africa5410.86
North   America38-150.71
South   America10000.89
South   and SE Asia87130.92
Western   Europe9400.88
C Europe   and W Russia57-120.82


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