Bulletin

wall bulletin
OverviewCrop and environmental conditions in major production zones

Authors: 超级管理员 | Edit: Miao

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 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 http://www.cropwatch.com.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 and five-year averages, respectively.

Table 2.1. October 2018-January 2019 agroclimatic indicators by Major Production Zone, current value and departure from 15YA

 RAINTEMPRADPAR
CurrentDeparture from 15YA (%)CurrentDeparture from 15YA (°C)CurrentDeparture from 15YA (%)
 (mm)(°C)(MJ/m2)
West Africa2641026.9-0.312502
North America421414.6-0.6495-8
South America725223.7-0.513581
South and SE Asia176-2022.80.110442
Western Europe266-36.5-0.53164
C. Europe and W. Russia254-2-0.4-0.32416

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 2004-2018.

Table 2.2.  October 2018-January 2019 agronomic indicators by Major Production Zone, current season values and departure from 5YA

 BIOMSSCropped arable land fractionMaximum VCI 
CurrentDeparture from 5YA (%)CurrentDeparture from 5YA (%)Current
(gDM/m2)(%)  
West Africa65469410.94
North America839862-90.81
South America1803210030.75
South and SE Asia453-89510.86
Western Europe91739000.86
C Europe and W Russia685271-20.79
Note: See note for table 2.1, with reference value R defined as the five-year average (5YA) for the same period (October-January) for 2014-2018.