Bulletin

wall bulletin
OverviewCrop and environmental conditions in major production zones

Authors: 超级管理员 | Edit: xingqiang

Chapter 2 presents the same indicators—RAIN, TEMP, RADPAR, and BIOMSS—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 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 C as well as the CropWatch bulletin online resources at www.cropwatch.com.cn. 

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 and five-year averages.


RAIN Current  (mm) RAIN Departure from 15YA (%) TEMP Current (°C) TEMP Departure from 15YA (%) RADPAR Current  (MJ/m2) RADPAR Departure from 15YA (%)
West Africa 230 6 27.1 -0.1 1167 0
South America 775 8 23.6 -0.7 1329 2
North America 310 4 6.5 1.4 538 -3
South and SE Asia 234 12 22.8 0.1 969 0
Western Europe 193 -29 4.8 -2.3 315 -2
C. Europe and W. Russia 220 9 -2.0 -1.7 225 -6

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-January) for 2002-2016.

Table 2.2. October 2016 - January 2017 agronomic indicators by Major Production Zone, current season values and departure from 5YA

BIOMSS Current  (gDM/m2) BIOMSS (gDM/m2) Departure from 5YA (%) Cropped arable land fraction Current Cropped arable land fraction Departure from 5YA (%) Maximum VCI Intensity Current
West Africa 598 1 1 5 0.90
South America 1835 4 1 0 0.66
North America 813 12 1 11 0.92
South and SE Asia 495 2 1 -1 0.91
Western Europe 752 -20 1 -2 0.81
C Europe and W Russia 591 -10 1 2 0.79

Note: Departures are expressed in relative terms (percentage) for all variables. 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 five-year (5YA) average for the same period (October-January) for 2012-2016.