Showing results for: Soils
This article presents the results from a new global soil erosion model, based on a combination of remote sensing, GIS modelling and census data. It finds that accelerated soil erosion due to land use change between 2001 and 2012 is a major threat to soil and future agriculture but that previous commonly used estimates of annual global soil erosion were twice too high. In comparison with previous studies which had a mapping resolution of around 10–60 km cell size, this model with its high-resolution 250m cell size has far greater predictive power than any previous model.
This paper, by researchers from the US and the Netherlands, presents the findings of a model analysis that estimates how much soil organic carbon (SOC) has been lost, and from where, as a result of land use and land cover change (LU-LCC) associated with human agricultural activities.
The United Nations Convention to Combat Desertification (UNCCD) has published its first edition of the Global Land Outlook (GLO), addressing future challenges and opportunities for the management and restoration of land resources in the context of sustainable development.
Breakthrough Strategies & Solutions has released a report based on their conference ‘Sequestering Carbon in Soil: Addressing the Climate Threat’ held in May 2017.
This book contains six chapters on food security and sustainability in the Middle East. The book can be purchased in its entirety or by chapter online.
In this short perspective piece, researchers from the Netherlands, USA and the UK critically assess the COP21 4 per 1000 initiative, which seeks to increase global yearly agricultural soil organic carbon sequestration by 4‰ (= 0.4%, or 1.2 billion tonnes). The authors argue that as soil organic matter (SOM) also contains nitrogen (N), with a C-to-N ratio always approaching 12, this will require the sequestration of an extra 100 million tonnes of N per year, and they question the feasibility of achieving this.
This paper discusses EU climate and agriculture policy instruments and analyses how these can motivate farmers to adopt soil carbon sequestration projects.
What is the latest science on soil's ability to pull carbon pollution out of the atmosphere? Breakthrough Strategies hosted a webinar on April 24 on the Technical Potential of Soil Carbon Sequestration. It featured three of the world’s leading experts on strategies for drawing carbon pollution out of the atmosphere and storing it in soils: Keith Paustian, Jean-François Soussana, and Eric Toensmeier.
This research brings together data from 389 field trials to determine how the root and shoot biomass, and carbon (C) stocks of major crops correlate to soil C in different environmental conditions. The analysis found all crops allocated more C to their shoots than roots. The greatest C allocation to roots was in grasses (which also had the highest plant biomass production).
In this post in the Conversation, crop scientist Matthew Wallenstein, Associate Professor and Director at the Innovation Center for Sustainable Agriculture, Colorado State University, discusses the potential of natural microbes to improve agriculture and make it more sustainable.
In this Nature commentary Jess Davies from Lancaster Environment Centre discusses the urgent need to deal with the degradation of our soils, focusing on the need for the private sector to take this sustainability threat seriously by taking action on soil. Today one-third of all soils and more than half of agricultural soils are moderately or highly degraded.
This review assesses the performance of organic cropping systems as an approach to sustainable agriculture, and seeks to identify the contextual considerations (such as type of cropping system) that may affect this performance. The scope of the review is constrained to the level of the farming system (i.e. excludes considerations of other components of the food system, such as packaging or transport). In order to provide an unbiased assessment of organic farming as a means of sustainable agriculture, rather than approaching the question from the usual “What does organic farming do well/badly?” angle, the authors ask “What constitutes successful sustainable agriculture?” then measure organic farming against this yardstick.
The Farm Carbon Cutting Toolkit (FCCT) has launched a crowdfunding campaign to support UK farmers in adopting Carbon Farming techniques. This approach aims to minimise carbon emissions and maximise carbon sequestration on farms, particularly in soils.