Bulletin

CropWatch 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), minimum vegetation health index (VHIn) , and cropping intensity index (CI)—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, respectively.

Table 2.1. July-October 2018 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 Africa1004 18 25.9 -0.6 1139 7
South America380 9 19.3 -0.6 955 -4
North America477 27 20.0 -0.5 1111 -2
South and SE Asia1089 2 27.1 -0.3 1045 -3
Western Europe217 -19 17.4 1.1 1022 8
C. Europe and W. Russia222 -4 16.5 0.7 916 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 (July-October) for 2003-2017.

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

 BIOMSSCropped arable land fractionMaximum VCI Cropping Intensity
CurrentDeparture from 5YA (%)CurrentDeparture from 5YA (%)CurrentCurrentDeparture from 5YA (%)
(gDM/m2)   
West Africa1825 -2 960 0.93 132 3 
South America1235 25 901 0.68 176 5 
North America1325 13 952 0.91 137 10 
South and SE Asia1574 -13 94-1 0.89 167 3
Western Europe971 -7 922 0.77 112-8
C Europe and W Russia1022 2 93 -3 0.82 101 -2

Note: See note for table 2.1, with reference value R defined as the five-year average (5YA) for the same period (July-October) for 2013-2017.