Showing results for: Land use and land use change
The last decade has witnessed major crises in both food and energy security across the world. One response to the challenges of climate change and energy supply has been the development of crops to be used for biofuels. But, as this book shows, this can divert agricultural land from food production to energy crops, thus affecting food security, particularly in less developed countries.
This paper looks at how soil can help contribute to climate mitigation. It argues that by decreasing greenhouse gas emissions, sequestering carbon and using prudent agricultural management practices that improve the soil-nitrogen cycle (tighter cycle with less leakage), it is possible to enhance soil fertility, bolster crop productivity, improve soil biodiversity, and reduce erosion, runoff and water pollution.
Taking as their starting point a hypothetical zero-deforestation for agricultural production, where people would refrain from clearing any further forests for agricultural purposes, the researchers behind this study look at both supply side and demand side measures to assess how changes in production and diet can assist in halting deforestation
This report produced by Food Research Collaboration (FRC) outlines the horticulture sector’s potential to create a shift towards healthier diets in the UK by contributing to overall fruit and vegetable consumption.
This paper looks at China’s National Forest Conservation Program (NFCP) and concludes that overall, it has been successful in reforesting the country. Prior to this study, scientists did not have proof of China’s claims of forest growth and the effectiveness of the program and China has been under international pressure to scientifically report their findings.
This study is the first to look at the net balance of the three major (biogenic, non-fossil fuel) greenhouse gases; carbon dioxide, methane, and nitrous oxide - for every region of earth's land masses. It analyses emissions from land use and land use change and uptakes from land and forests and concludes that the terrestrial biosphere (land and forests) is a net emitter of these greenhouse gases.
This article in Nature Climate Change titled Cropping frequency and area response to climate variability can exceed yield response, suggests that previous studies may have underestimated the impact of climate change on the world’s food supply.
This paper in Science discusses the potential of yield increase incentives as a way of convincing farmers to save land to protect biodiversity rather than increasing farmland. The increase of agricultural land is one of the leading causes of biodiversity loss and greenhouse gas emissions in tropical countries. This paper argues that increasing yields on existing agricultural land can provide farmers with the incentive to spare land for wildlife and nature.
In this Nature Comment, Phil Williamson of the Natural England Research Council and the University of East Anglia, argues that in order for the climate goals agreed at the COP21 in Paris last year to be achieved, a full assessment must be made of the methods for removing carbon dioxide (CO2) from the atmosphere.
In this study, researchers from the Netherlands and Italy investigate the long-term (past and future) changes in phosphorus (P) budgets in grasslands used for grazing and in connection with croplands. The authors recognise a lack in the literature of studies characterising the P cycle in relation to grasslands and croplands, and - as grass-dependent livestock demand is increasing – they seek to address this lack of understanding.
Extract from book introduction:
The growth in global population and more demanding consumption patterns around the world are placing ever increasing pressures on land and its resources. This is resulting in conflicts and the unsustainable use of humanity’s resource base.
In this paper, researchers from James Cook University, Australia, assess the impact on the environment and agriculture of 33 planned or existing “development corridors” in sub-Saharan Africa. Development corridors are tracts of land earmarked for large-scale infrastructure expansions (e.g. road access) with the aim of increasing agricultural production.
This commentary published in Science Letters, discusses new data recently released by FAO’s statistical division, and makes the case that the current large-scale reversion in pasture area is opening up a potential conservation opportunity. Author and FCRN member Joseph Poore argues that as grazing of land has become more intensive globally, we are seeing ruminant outputs increasing while large agricultural areas are being abandoned, and he argues that this offers a new opportunity for land-sparing conservation.
This very useful paper focuses on Brazilian beef production in the Cerrado grasslands region of Brazil makes an important contribution to the on-going debate about the merits of different livestock production systems, and of different consumption patterns.
In this paper, researchers at the National University of Singapore identify the major land use changes associated with mangrove deforestation in Southeast Asia, with an aim of ultimately facilitating appropriately targeted policy interventions to manage the forests. Over a 12-year period, the researchers quantified LULCC in deforested patches, and classified the replacement land uses (e.g. aquaculture).