Since the mid-1980s, the positive impacts of these simple, cost-efficient water harvesting techniques become clear, following their increasingly widespread adoption. Their use has allowed smallholders to reverse land degradation, improve soil fertility, sustainably increase crop production, achieve food security, and create more productive, diverse and resilient farming systems. At the same time, groundwater is recharged, improving access to drinking water for the entire year, and creating opportunities for irrigated vegetable gardening around wells.

The Great Green Wall is one of the main vehicles for delivering the Sustainable Development Goals and the Rio conventions in the Sahel. Biodiversity is the foundation of the Great Green Wall in many ways, determining soil productivity and water cycles and providing the foundation for risk management and resilient ecosystems. The Great Green Wall can make a major contribution to achieving many of the Sustainable Development Goals.

As a farmer in northern Kenya, I came to understand the importance of dryland restoration. After moving to Kaijaido country in the south, I started an initiative to restore the land, increase food security and reduce poverty, supported by a grant from the East African Community with various activities supported by FAO and Yale University.

Drylands occupy more than 40% of the world’s land area and are home to some two billion people. This includes a disproportionate number of the world’s poorest people, who live in degraded and severely degraded landscapes. The United Nations Convention to Combat Desertification states on its website that 12 million hectares are lost annually to desertification and drought, and that more than 1.5 billion people are directly dependent on land that is being degraded, leading to US$42 billion in lost earnings each year.

The Lawra district of the Upper West region was selected as the case study. This study compared crop yields for FMNR and non-FMNR farmers. FMNR farmers are classified as having at least 8 trees per acre, with an average of 13 trees per acre (33 per ha) and a maximum of 40. Non-FMNR farmers are classified as having between 1 and 7 trees per acre, with an average of 5.Qualitative (focus group discussion) and quantitative (household survey) data were collected in April to May 2019. Over 500 households were interviewed in both CIKOD intervention communities and control sites.

Meeting the Sustainable Development Goals requires drylands sustainability. Treating drylands as global environmental commons enables better tailored governance responses. Key nested governance elements for drylands involve setting goals, monitoring and delivering sanctions across scales. The present global governance system for drylands only partially delivers these elements. Drylands require a particular focus on linking local and global governance.

The world’s drylands are among the most vulnerable ecosystems on our planet. Desertification and land degradation are affecting huge land areas, jeopardizing the livelihoods of millions of people. Unsustainable management practices in dryland cultivation and pastoralism have given rise to widespread soil erosion, reduction of the biological production of soils, reduction of vegetation cover, and depletion of surface and groundwater resources.

The drylands of the world occur on every continent, covering some 41% of the terrestrial surface. One third
of humanity inhabits these harsh degrading landscapes, eking out a living through adaptive processes that
have served them well until recent increases of land degradation. Growing pressures from population growth,

Asia and the Pacific, for the purposes of this book, encompasses a vast territory extending from Mongolia in the north to New Zealand in the south; from the Cook Islands in the east to Kuwait in the west (Map 1). The environmental diversity of Asia and the Pacific is therefore vast, and is contrasted by the region’s coldest and hottest deserts, verdant tropical rainforests, extensive steppe, desert steppe, grassland and rangelands, mountains and plains.

Natural rangelands occupy about 5.5 million hectares of Tunisia’s landmass, and 38% of this area is in Tataouine governorate. Although efforts towards natural restoration are increasing rapidly as a result of restoration projects, the area of degraded rangelands has continued to expand and the severity of desertification has continued to intensify. Any damage caused by disturbances, such as grazing and recurrent drought, may be masked by a return of favorable rainfall conditions.

The Sustainable Development Goals (SDGs) adopted by the United Nations General Assembly in September 2015 include a target on land degradation neutrality (LDN) (SDG 15.3). Attaining and maintaining LDN requires addressing a land governance challenge to steer land management towards avoiding, reducing and reversing land degradation.

Key Messages and Recommendations

• Combating desertification and land degradation while mitigating the effects of drought can secure long-term socio-economic benefits for people living in drylands and reduce their vulnerability to climate change.

• Land degradation neutrality (LDN) is an approach that counterbalances the expected loss of productive land with the recovery of degraded areas.

• Land tenure insecurity, especially for women, often prevents farmers from adopting sustainable land management practices