Bulletin

wall bulletin
OverviewCrop and environmental conditions in major production zones

Authors: 超级管理员 | Edit: zhuliang

Chapter 2. Crop and environmental conditions in major production zones

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 (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 B 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-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 ( July- October 2020)



RAIN

TEMP

RADPAR

BIOMSS


Current (mm)

Departure
  (%)

Current
  (°C)

Departure
  (°C)

Current
  (MJ/m2)

Departure (%)

Current
  (gDM/m2)

Departure (%)

West   Africa

743

-22

24.9  

0.1

1071  

-1

684

-4

North   America

332

-3

20.2

-0.4

1129

-1

606

-1

South   America

270

-21

19.2  

-0.6  

1022  

0

398

-9

S.   and SE Asia

1374

3

25.8

0.3

1064

-1

664

0

Western   Europe

336

11

15.9  

0.1

925

-4

416

-2

Central   Europe and W. Russia

249

-3

15.8

0.6

885

1

404

0

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 2005-2019.


Table 2.2 Agronomic indicators by Major Production Zone, current season values and departure from 5YA (July- October 2020)


CALF (Cropped arable land fraction)

Maximum VCI

Cropping Intensity


Current

5A    Departure (%)

Current

Current

5A    Departure (%)

West   Africa

97

0

0.94  

134

3

North America

94

-1

0.90

101

0

South America

86

-5

0.75  

124

0

S.   and SE Asia

97

1

0.96

133

1

Western   Europe

89

-1

0.90  

107

-2

Central   Europe and W Russia

95

-1

0.88

102

0


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 2015-2019.