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OverviewCrop and environmental conditions in major production zones

Authors: 超级管理员 | Edit: zhangxin

Chapter 2 presents thesame indicators—RAIN, TEMP, RADPAR, and BIOMSS—used in Chapter 1, and combinesthem with the agronomic indicators—cropped arable land fraction (CALF) andmaximum vegetation condition index (VCIx)—to describe crop condition in sixMajor Production Zones (MPZ) across all continents. For more information aboutthese zones and methodologies used, see the quick reference guide in Annex C aswell as the CropWatch bulletin online resources at www.cropwatch.com.cn.

2.1 Overview

Tables2.1and 2.2present an overview of the agroclimatic (table2.1) and agronomic (table2.2)indicators for each of the six MPZs, comparing the indicators to their fifteenand five-year averages.

Table 2.1. January-April 2016 agroclimaticindicators by Major Production Zone, current value and departure from 15YA

 

RAIN

TEMP

 

          RADPAR

 

 

Current (mm)

Departure from 15YA (%)

Current
(°C)

Departure from 15YA (°C)

Current
(MJ/m2)

Departure from 15YA (%)

West Africa

176

1

28.7

-0.5

1259

1

South America

751

12

24.1

-0.4

1106

-2

North America

340

15

6

1.4

797

-2

South and SE Asia

108

-13

24.9

0.4

1180

1

Western Europe

246

12

5.6

-0.4

549

-7

C. Europe and W. Russia

241

41

1

1.9

486

-9

Note: Departuresare expressed in relative terms (percentage) for all variables, except fortemperature, for which absolute departure in degrees Celsius is given. Zeromeans 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-yearaverage (15YA) for the same period (January-April) for 2001-15.

Table 2.2. January-April 2016agronomic indicators by Major Production Zone, current season values anddeparture from 5YA

 

 

 

 

 

 

 

 

 

 

 

BIOMSS (g DM/m2)

Cropped arable land fraction (CALF)

 

Maximum VCI Intensity

West Africa

Current

Departure from 5YA (%)

Current

Departure from 5YA (%)

Current

South America

580

4

72

0

0.73

North America

1795

3

90

1

0.73

South and SE Asia

844

16

67

5

0.76

Western Europe

298

-31

80

3

0.68

C Europe and W Russia

881

20

93

0

0.79

West Africa

754

23

89

-1

0.75

Note: Departuresare expressed in relative terms (percentage) for all variables. Zero means nochange 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 (January-April) for 2011-2015.