Table 1 Variable’s definition, classification, and descriptive statistics.

From: Linear and non-linear impact of key agricultural components on greenhouse gas emissions

Variable overview

Descriptive statistics

Variables

Identifiers

Classification

Units

Source

Time

Mean

Std.dev

Max

Min

Greenhouse gas emissions

GHG

Dependent

(Mt of CO2 equivalent)

WDI-world bank (2024)

(1990 to 2020)

15.743

12.488

18.991

10.991

Agricultural land

AGL

Independent

(% of land

WDI-world bank

(1990 to 2020)

5.043

2.016

6.064

1.008

Fertilizer consumption

FC

Independent

(Kg per hectare of arable land)

WDI-world bank

(1990 to 2020)

7.838

1.241

8.141

0.326

Energy used in agriculture

EUA

Independent

(10 billion kwh)

NBSC, database

(1990 to 2020)

6.709

4.279

7.259

2.273

Crop production index

CPI

Control

(2014–2016 = 100)

WDI-world bank

(1990 to 2020)

4.266

2.313

5.679

2.694

Livestock production index

LPI

Control

(2014–2016 = 100)

WDI-world bank

(1990 to 2020)

5.274

3.349

7.611

0.410

Fisheries production

FP

Control

(Metric tons)

WDI-world bank

(1990 to 2020)

16.428

9.228

17.627

1.719

Agriculture value added

AVA

Control

(% of GDP)

WDI-world bank

(1990 to 2020)

4.546

3.400

6.280

0.953

Forest production

FL

Control

(Sq.km)

WDI-world bank

(1990 to 2020)

14.44

11.104

20.603

03.267