When the UN Convention to Combat Desertification was created at the Rio Earth Summit over 25 years ago, it became the only international convention dedicated to protecting, managing and restoring our land. The environmental benefits of that work are already well documented, particularly when it comes to the inextricablelinks with climate change and biodiversity. But this book goes much further by highlighting the impact on the wellbeing of over three billion people – nearly half the world’s population – who are directly affected by land degradation.

A new post-2015 development agenda demands a new vision and a responsive framework with

Why is it so important to restore degraded landscapes? It’s actually very simple.
We rely on healthy ecosystems to provide us with our food, water, clean air, climate stability, social and economic wealth; even our happiness and well-being. We only have to look at history to see the devastating consequences of not valuing or understanding ecosystems: whole civilizations have vanished after overexploiting their natural resources.

Land is of multi-dimensional character. It is multi-scale, multi-functional, multi-sectorial, multi-actor based: it needs people from practice and research to interact as equal partners to make sense of research for sustainable land management. The kind of research needed to deal with this complexity and these challenges we term implementation-oriented research. With its many practical examples, this book explores alternatives to the often perceived ‘either – or’ choice between agricultural intensification on the one hand, and expansion of arable land on the other.

Land restoration has tremendous potential to help the world limit climate change and achieve its aims for sustainable development. In its latest study, the International Resource Panel finds positive spin-offs to support all 17 Sustainable Development Goals agreed to by the world’s nations as part of the 2030 Agenda for Sustainable Development. While other reports have focused on a subset of the SDGs, this report has intentionally considered all of them, and has done so by inviting a large number of diverse authors to participate in the process.

In a world grappling with the challenges of food insecurity, climate change, landscape degradation, and rural poverty, regreening offers a path forward, especially in dryland areas. The transformation of degraded landscapes—restoring productivity and increasing resilience through the widespread adoption of agroforestry and sustainable land management practices—can deliver food, climate, and livelihood benefits.
Table of contents:
Part I. Introduction
Part II. How and Where is Regreening Happening?
Part III. The Impacts Of Regreening

For the African continent, the ability to manage trade-offs at a landscape scale has huge potential to influence the future of migration and conflict, as well as the future of land resources, food security and biodiversity. Integrated land management can act as an accelerator for achieving the Sustainable Development Goals and can be considered an essential element of a sustainable strategy to address the root causes of irregular migration.

‘Over the past three decades hundreds of thousands of farmers in Burkina Faso and Niger, on the fringes of the Sahara Desert, have transformed large swathes of the region’s arid landscape into productive agricultural land, improving food security for about three million people. Once-denuded landscapes are now home to abundant trees, crops, and livestock.'

The West African Sahel is very vulnerable to the effects of climate change, due to land degradation, dependence on rainfed farming, political instability, poor governance, food insecurity, terrorism, poor infrastructure, and limited technical capacity. This has particular impacts on the agricultural sector (Sissoko et al. 2011; Zougmoré et al. 2016).

Restoration is more complex than just planting trees. It requires that farmers, rural communities, businesses, and government agencies—all with different interests—unite behind a shared vision. Establishing common goals and measuring progress facilitates deeper collaboration among diverse actors.

Ecosystems and Biodiversity Facts and Figures # The IPBES Report (5) stated that “around 1 million animal and plant species are now threatened with extinction, many within decades, more than ever before in human history”.

The authors briefly review how microbial biotechnology can contribute to improve activities aiming to restore degraded drylands and to combat their desertification, which are an integral part of the Sustainable Development Goal 15 of the 2030 Agenda. Microbial biotechnology offers notable promise to improve restoration actions based on the use of biocrust‐forming engineered cyanobacteria, which play key roles in maintaining ecosystem structure and functioning in drylands worldwide.