This volume is an analytical summary and a critical synthesis of research at the International Water Management Institute over the past decade under its evolving research paradigm known popularly as 'more crop per drop'.

Land degradation – the reduction or loss of the productive potential of land – is a global challenge. Over 20% of the Earth’s vegetated surface is estimated to be degraded, affecting over 1.3 billion people, with an economic impact of up to US$10.6 trillion. Land degradation reduces agricultural productivity and increases the vulnerability of those areas already at risk of impacts from climate variability and change.

This report suggests that a new and explicit goal of sustainable development to be agreed as a result of Rio+20 should be the reduction of the rate of land degradation to achieve land degradation neutrality, which we refer to as “Zero Net Land Degradation” or ZNLD.

Soil information, from the global to the local scale, has often been the one missing biophysical information layer, the absence

Land degradation – the reduction or loss of the productive potential of land – is a global challenge. Over 20% of the Earth’s vegetated surface is estimated to be degraded, affecting over 1.3 billion people, with an economic impact of up to US$10.6 trillion. Land degradation reduces agricultural productivity and increases the vulnerability of those areas already at risk of impacts from climate variability and change.

Land degradation is a pervasive, systemic phenomenon: it occurs in all parts of the terrestrial world and can take many forms. Combating land degradation and restoring degraded land is an urgent priority to protect the biodiversity and ecosystem services vital to all life on Earth and to ensure human well-being

The publication presents updated and new analyses of land, labor, and total productivity trends in African agriculture. It brings together analyses of a unique mix of data sources and evaluations of public policies and development projects to recommend ways to increase agricultural productivity in Africa.

As investments in nature are needed more than ever, and are increasingly gaining traction, the challenge is to identify environmental and social risks and to demonstrate positive impacts associated with investing in nature-based projects in a standardized and comparable manner. To help create a clear track record of projects that can be assessed on risk-return-impact profiles, a certain degree of standardization is needed, while maintaining scientific rigor.

Most commonly in drylands the salinity levels are always high and evenly dispersed due to this salinity levels the plant cultivated are usually tremendously affected. Normal plants cannot grow in soils with high salinity levels. In this book the authors would like to analyze the effects of human acticities on the salinity lebvels in drylands.

With an expected 9.5 billion people living on earth by 2050, population pressure, higher consumer expectations and climate change will tax and degrade our natural resource base, especially the LAND. With an increasing awareness of the potential of land to meet public and private development goals, land is being seen as an ever more attractive investment vehicle.

This paper explores the role of the global food system as the principal driver of accelerating biodiversity loss. It explains how food production is degrading or destroying natural habitats and contributing to species extinction. The paper outlines the challenges and trade-offs involved in redesigning food systems to restore biodiversity and/or prevent further biodiversity loss, and presents recommendations for action. The paper introduces three ‘levers’ for reducing pressures on land and creating a more sustainable food system.

Monitoring progress towards the 2030 Development Agenda requires the combination of traditional and new data sources in innovative workflows to maximize the generation of relevant information. We present the results of a participatory and data-driven land degradation assessment process at a national scale, which includes use of earth observation (EO) data, cloud computing, and expert knowledge for Argentina.