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 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 (October 2021-Januray 2022)


RAINTEMPRADPARBIOMSS

CurrentDeparture  (%)CurrentDeparture(°C)CurrentDeparture  (%)CurrentDeparture (%)
 (mm)(°C)(MJ/m2)(gDM/m2)
West   Africa145-3125.60.612562615-9
North   America264-156.31.15554453-1
South   America529-4123.70.5134831108-12
South and   SE Asia3251320.3-0.31017066410
Western   Europe316-135.6-0.13339505-7
C. Europe   and W. Russia25900.70.624373711

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 January) for 2007-2021.


Table2.2 Agronomic indicators by Major Production Zone, current season values and departure from 5YA (October 2021-Januray 2022)


Cropped arable land   fractionMaximum VCI 

Current (%)Departure  (%)Current
West   Africa9400.92
North   America66-20.78
South   America9800.85
South   and SE Asia9820.93
Western   Europe9110.93
C Europe   and W Russia7840.83

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 Januaryfor 2017-2021.