Atlas of Cropland Abandonment in Africa

Wei Song, Editor-in-Chief

978-988-74384-5-8

https://dx.doi.org/10.48014/978-988-74384-5-8

Editor-in-Chief

Wei Song

Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, China

Associate Editors

Jimin Zhang

Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, China

Ze Han

Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, China

Editors

Zisong Yan

Southwest University, Chongqing, China

Bowen Qiang

‌Chongqing University‌, Chongqing, China

Xintao Xu

Soochow University, Suzhou, China

Pengxuan Chen

University of International Business and Economics, Beijing, China

Tingyu Cui

Huazhong University of Science and Technology, Wuhan, China

Yilin Du

Nanjing University, Nanjing, China

Jinru Tang

The University of Hong Kong, Hong Kong SAR, China

Ziyi Wang

Renmin University of China, Beijing, China

Weizhao Li

‌East China Normal University, Shanghai, China

Spanning the equator from north to south, the African continent encompasses globally representative geomorphic units such as the Sahara Desert, the Congo Basin, the East African Plateau, and the Southern African tablelands, integrating diverse ecosystems including tropical rainforests, savannas, and deserts/semi-deserts. Its cropland utilization patterns exhibit significant complexity, shaped by the interplay of distinct natural gradients and anthropogenic drivers. This atlas, based on remote sensing monitoring and ground verification data from 2004 to 2023, employs a three-year moving window approach to temporally correct cropland use status, effectively mitigating random fluctuations in remote sensing classification and significantly enhancing the accuracy of abandonment identification.

This atlas systematically presents the spatiotemporal differentiation patterns of cropland abandonment in Africa: it reveals the spatial agglomeration characteristics of high-abandonment areas such as the southern fringe of the Sahara, the East African Rift Zone, and the rain-fed agricultural regions of Southern Africa, and visually illustrates the dynamic pathways of cropland use change. The contents cover the evolution of abandonment patterns at the regional scale, case studies at the national level, and the distribution of abandonment across different slope gradients, providing a visual tool for understanding the driving mechanisms behind the evolution of cropland resources in Africa.

This work aims to provide a scientific basis for formulating food security strategies, combating land degradation, planning ecological restoration projects, and achieving sustainable development goals in Africa. Through multi-dimensional mapping and analysis of the abandonment phenomenon, it seeks to deepen the understanding of the coupling mechanisms within the human-land system in Africa and offer a reference paradigm for cropland resource management research in the Global South.

Due to constraints related to data resolution and regional heterogeneity, limitations in this study are inevitable. Criticisms and suggestions from readers and experts are sincerely welcomed to jointly advance related research.

This study was supported by the Project of the National Natural Science Foundation of China (Grant No. 42071233).

Front Cover

Copyright Page

Preface

Contents

1 Natural and Socio-Economic Environment

1.1 Data and Preprocessing Methods

1.2 Mapping the Natural and Socio-Economic Environment of Africa

Elevation of Africa

Slope of Africa

Aspect of Africa

Average Annual Precipitation in Africa (2020)

Average Annual Temperature in Africa (2020)

GDP Per Capita in Africa (2020)

Population Density of Africa (2020)

2 Land Use/Land Cover

2.1 Spatiotemporal Evolution of Land Use/Land Cover in Africa (2001–2023)

2.2 Mapping Land Use/Land Cover in Africa

Land Use/Land Cover of Africa in 2001

Land Use/Land Cover of Africa in 2002(a), 2003(b) and 2004(c)

Land Use/Land Cover of Africa in 2005

Land Use/Land Cover of Africa in 2006(a), 2007(b), 2008(c) and 2009(d)

Land Use/Land Cover of Africa in 2010

Land Use/Land Cover of Africa in 2011(a), 2012(b), 2013(c) and 2014(d)

Land Use/Land Cover of Africa in 2015

Land Use/Land Cover of Africa in 2016(a), 2017(b), 2018(c) and 2019(d)

Land Use/Land Cover of Africa in 2020

Land Use/Land Cover of Africa in 2021(a), 2022(b) and 2023(c)

Land Use/Land Cover Change in Africa (2001-2005)

Land Use/Land Cover Change in Africa (2005-2010)

Land Use/Land Cover Change in Africa (2010-2015)

Land Use/Land Cover Change in Africa (2015-2020)

Land Use/Land Cover Change in Africa (2020-2023)

3 Cropland Abandonment

3.1 Concepts and Definitions of Cropland Abandonment in Africa

3.2 Data Production Process of Cropland Abandonment in Africa

3.3 Spatiotemporal Evolution of Cropland Abandonment

in Africa (2004–2023)

3.4 Mapping Cropland Abandonment in Africa

Cropland Abandonment in Africa (2004)

Cropland Abandonment in Africa (2005)

Cropland Abandonment in Africa (2006)

Cropland Abandonment in Africa (2007)

Cropland Abandonment in Africa (2008)

Cropland Abandonment in Africa (2009)

Cropland Abandonment in Africa (2010)

Cropland Abandonment in Africa (2011)

Cropland Abandonment in Africa (2012)

Cropland Abandonment in Africa (2013)

Cropland Abandonment in Africa (2014)

Cropland Abandonment in Africa (2015)

Cropland Abandonment in Africa (2016)

Cropland Abandonment in Africa (2017)

Cropland Abandonment in Africa (2018)

Cropland Abandonment in Africa (2019)

Cropland Abandonment in Africa (2020)

Cropland Abandonment in Africa (2021)

Cropland Abandonment in Africa (2022)

Cropland Abandonment in Africa (2023)

Dynamics of Cropland Abandonment in Africa from 2004 to 2008

Dynamics of Cropland Abandonment in Africa from 2009 to 2013

Dynamics of Cropland Abandonment in Africa from 2014 to 2018

Dynamics of Cropland Abandonment in Africa from 2019 to 2023

Dynamics of Cropland Abandonment in East Africa from 2004 to 2008

Dynamics of Cropland Abandonment in East Africa from 2009 to 2013

Dynamics of Cropland Abandonment in East Africa from 2014 to 2018

Dynamics of Cropland Abandonment in East Africa from 2019 to 2023

Dynamics of Cropland Abandonment in West Africa from 2004 to 2008

Dynamics of Cropland Abandonment in West Africa from 2009 to 2013

Dynamics of Cropland Abandonment in West Africa from 2014 to 2018

Dynamics of Cropland Abandonment in West Africa from 2019 to 2023

Dynamics of Cropland Abandonment in Southern Africa from 2004 to 2008

Dynamics of Cropland Abandonment in Southern Africa from 2009 to 2013

Dynamics of Cropland Abandonment in Southern Africa from 2014 to 2018

Dynamics of Cropland Abandonment in Southern Africa from 2019 to 2023

Dynamics of Cropland Abandonment in North Africa from 2004 to 2008

Dynamics of Cropland Abandonment in North Africa from 2009 to 2013

Dynamics of Cropland Abandonment in North Africa from 2014 to 2018

Dynamics of Cropland Abandonment in North Africa from 2019 to 2023

Dynamics of Cropland Abandonment in Central Africa from 2004 to 2008

Dynamics of Cropland Abandonment in Central Africa from 2009 to 2013

Dynamics of Cropland Abandonment in Central Africa from 2014 to 2018

Dynamics of Cropland Abandonment in Central Africa from 2019 to 2023

Dynamics of Cropland Abandonment in Ethiopia from 2004 to 2008

Dynamics of Cropland Abandonment in Ethiopia from 2009 to 2013

Dynamics of Cropland Abandonment in Ethiopia from 2014 to 2018

Dynamics of Cropland Abandonment in Ethiopia from 2019 to 2023

Dynamics of Cropland Abandonment in Ghana from 2004 to 2008

Dynamics of Cropland Abandonment in Ghana from 2009 to 2013

Dynamics of Cropland Abandonment in Ghana from 2014 to 2018

Dynamics of Cropland Abandonment in Ghana from 2019 to 2023

Dynamics of Cropland Abandonment in Nigeria from 2004 to 2008

Dynamics of Cropland Abandonment in Nigeria from 2009 to 2013

Dynamics of Cropland Abandonment in Nigeria from 2014 to 2018

Dynamics of Cropland Abandonment in Nigeria from 2019 to 2023

Dynamics of Cropland Abandonment in Senegal from 2004 to 2008

Dynamics of Cropland Abandonment in Senegal from 2009 to 2013

Dynamics of Cropland Abandonment in Senegal from 2014 to 2018

Dynamics of Cropland Abandonment in Senegal from 2019 to 2023

Dynamics of Cropland Abandonment in Uganda from 2004 to 2008

Dynamics of Cropland Abandonment in Uganda l from 2009 to 2013

Dynamics of Cropland Abandonment in Uganda from 2014 to 2018

Dynamics of Cropland Abandonment in Uganda from 2019 to 2023

0–2° Slope Cropland Abandonment in Africa, 2005

2-6° Slope Cropland Abandonment in Africa, 2005

6-15° Slope Cropland Abandonment in Africa, 2005

>15° Slope Cropland Abandonment in Africa, 2005

0–2° Slope Cropland Abandonment in Africa, 2010

2-6° Slope Cropland Abandonment in Africa, 2010

6-15° Slope Cropland Abandonment in Africa, 2010

>15° Slope Cropland Abandonment in Africa, 2010

0–2° Slope Cropland Abandonment in Africa, 2015

2-6° Slope Cropland Abandonment in Africa, 2015

6-15° Slope Cropland Abandonment in Africa, 2015

>15° Slope Cropland Abandonment in Africa, 2015

0–2° Slope Cropland Abandonment in Africa, 2020

2-6° Slope Cropland Abandonment in Africa, 2020

6-15° Slope Cropland Abandonment in Africa, 2020

>15° Slope Cropland Abandonment in Africa, 2020

0-2° Slope Cropland Abandonment in East Africa, 2020

2-6° Slope Cropland Abandonment in East Africa, 2020

6-15° Slope Cropland Abandonment in East Africa, 2020

>15° Slope Cropland Abandonment in East Africa, 2020

0-2° Slope Cropland Abandonment in West Africa, 2020

2-6° Slope Cropland Abandonment in West Africa, 2020

6-15° Slope Cropland Abandonment in West Africa, 2020

>15° Slope Cropland Abandonment in West Africa, 2020

0-2° Slope Cropland Abandonment in Southern Africa, 2020

2-6° Slope Cropland Abandonment in Southern Africa, 2020

6-15° Slope Cropland Abandonment in Southern Africa, 2020

>15° Slope Cropland Abandonment in Southern Africa, 2020

0-2° Slope Cropland Abandonment in North Africa, 2020

2-6° Slope Cropland Abandonment in North Africa, 2020

6-15° Slope Cropland Abandonment in North Africa, 2020

>15° Slope Cropland Abandonment in North Africa, 2020

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