scholarly journals The Spatiotemporal Dynamics of Soybean and Cattle Production in Brazil

2019 ◽  
Vol 11 (7) ◽  
pp. 2150 ◽  
Author(s):  
Rebecca Lima Albuquerque Maranhão ◽  
Osmar Abílio de Carvalho Júnior ◽  
Potira Meirelles Hermuche ◽  
Roberto Arnaldo Trancoso Gomes ◽  
Concepta Margaret McManus Pimentel ◽  
...  
Keyword(s):  
Land Use ◽  
Temporal Dynamics ◽  
Sustainable Land Use ◽  
Cattle Production ◽  
Time Dynamics ◽  
South Central ◽  
Acceleration Rate ◽  
Soy Production ◽  
Rates Of Growth

The expansion of agricultural frontiers in Brazil has caused substantial changes in land use and land cover. This research aims to analyze the space-time dynamics of soybeans and cattle production in the Brazilian territory during the period 1991–2015. The spatial analysis adopted the following procedures: (a) The change vector from the annual calculation of the midpoint of production; (b) mapping of the growth and acceleration rates of the two productions, and (c) mapping of the correlation between the time series of soybean and cattle. The results showed high rates of growth and acceleration for soy production in the South, Central-West and Matopiba regions. The growth acceleration rate identified the long-term deviations that characterized the effective soybean and cattle expansion areas. The results demonstrated the effects of Brazil’s soy moratorium contained soybean expansion into the Amazon region. However, as a side effect, the soybean production replaced cattle production in the savanna region, which in turn, migrated to the Amazon rainforest. Therefore, the present study highlights the importance of public policies that comprehensively understand the spatial-temporal dynamics of Brazilian agriculture to promote sustainable land-use practices.

scholarly journals Food-for-work for poverty reduction and the promotion of sustainable land use: can it work?

2006 ◽  
Vol 11 (1) ◽  
pp. 15-38 ◽  
Author(s):  
STEIN HOLDEN ◽  
CHRISTOPHER B. BARRETT ◽  
FITSUM HAGOS
Keyword(s):  
Land Use ◽  
Poverty Reduction ◽  
Sustainable Land Use ◽  
Northern Ethiopia ◽  
Negative Effects ◽  
Labor Allocation ◽  
Project Outcomes ◽  
Private Investments ◽  
Crowd Out

Food-for-work (FFW) programs are commonly used both for short-term relief and long-term development purposes. This paper assesses the potential of FFW programs to reduce poverty and promote sustainable land use in the longer run. There is a danger that such programs distort labor allocation or crowd out private investments and therefore have unintended negative effects. We explore this issue using survey evidence from northern Ethiopia that we use to motivate a simple theoretical model, a more detailed version of which we then implement through an applied bio-economic model calibrated to northern Ethiopia. The analysis explores how FFW project outcomes may depend on FFW project design, market conditions, and technology characteristics. We show that FFW programs may either crowd out or crowd in private investments and highlight factors that condition whether FFW promotes or undercuts sustainable land use.

Long-term spatio-temporal dynamics of a hedgerow network landscape in Flanders, Belgium

2005 ◽  
Vol 32 (1) ◽  
pp. 20-29 ◽  
Author(s):  
B. DECKERS ◽  
E. KERSELAERS ◽  
H. GULINCK ◽  
B. MUYS ◽  
M. HERMY
Keyword(s):  
Land Use ◽  
20Th Century ◽  
Network Structure ◽  
18Th Century ◽  
Temporal Dynamics ◽  
Network Dynamics ◽  
Landscape Position ◽  
Hedgerow Networks ◽  
Insight Into

Although the importance of hedgerows for sustainable agriculture and conservation of rural biodiversity is increasingly being recognized, obtaining insight into the spatial and temporal dynamics of hedgerow networks remains an important challenge for landscape ecologists, with the key factors driving changes in rural landscape structure especially deserving further attention. The present study analyses the long-term history of a hedgerow network landscape in Flanders, Belgium. A detailed reconstruction of the hedgerow network is made at five points in time, starting at the end of the 18th century until present, for 367 distinct 400 m×400 m samples. Whilst hedgerows were mainly concentrated around historical village centres and within valleys at the end of 18th century, the network expanded progressively during the 19th century. In the 20th century, the hedgerow network degraded strongly, with hedgerow density and connectivity declining and mesh-size heterogeneity and network fragmentation increasing, although the network recovered slightly during the 1990s. Different trajectories of change in hedgerow network structure were observed depending on landscape position, with both topography and village proximity significantly affecting hedgerow network dynamics. The present network structure was mainly governed by land use, with highly developed networks being predominantly associated with pasture. Three main conclusions arise from the results of this study. First, the role of land use and landscape position as basic factors steering hedgerow network dynamics at the landscape scale is demonstrated. Second, the long-term perspective of the study enabled insight into the poorly known expansion phase of hedgerow networks, linked mainly with the development of small-scale labour-intensive agriculture. Finally, the findings confirm the large-scale degradation of linear semi-natural habitats in European agricultural landscapes during most of the 20th century, and indicate that a pro-active rural policy can halt and even reverse this process.

Understanding recurrent land use processes and long-term transitions in the dynamic south-central United States, c. 1800 to 2006

2017 ◽  
Vol 68 ◽  
pp. 345-354 ◽  
Author(s):  
Mark A. Drummond ◽  
Glenn E. Griffith ◽  
Roger F. Auch ◽  
Michael P. Stier ◽  
Janis L. Taylor ◽  
...  
Keyword(s):  
United States ◽  
Land Use ◽  
South Central ◽  
Central United States

Potential Effect of Conservation Tillage on Sustainable Land Use: A Review of Global Long-Term Studies

Pedosphere ◽  
2006 ◽  
Vol 16 (5) ◽  
pp. 587-595 ◽  
Author(s):  
Xiao-Bin WANG ◽  
Dian-Xiong CAI ◽  
W.B. HOOGMOED ◽  
O. OENEMA ◽  
U.D. PERDOK
Keyword(s):  
Land Use ◽  
Conservation Tillage ◽  
Potential Effect ◽  
Sustainable Land Use ◽  
Long Term Studies

scholarly journals Growth, death, and resource competition in sessile organisms

2021 ◽  
Vol 118 (15) ◽  
pp. e2020424118
Author(s):  
Edward D. Lee ◽  
Christopher P. Kempes ◽  
Geoffrey B. West
Keyword(s):  
Evolutionary Dynamics ◽  
Resource Competition ◽  
Temporal Dynamics ◽  
Population Level ◽  
Individual Growth ◽  
Local Competition ◽  
Large Colony ◽  
Rates Of Growth ◽  
Sessile Organisms

Population-level scaling in ecological systems arises from individual growth and death with competitive constraints. We build on a minimal dynamical model of metabolic growth where the tension between individual growth and mortality determines population size distribution. We then separately include resource competition based on shared capture area. By varying rates of growth, death, and competitive attrition, we connect regular and random spatial patterns across sessile organisms from forests to ants, termites, and fairy circles. Then, we consider transient temporal dynamics in the context of asymmetric competition, such as canopy shading or large colony dominance, whose effects primarily weaken the smaller of two competitors. When such competition couples slow timescales of growth to fast competitive death, it generates population shocks and demographic oscillations similar to those observed in forest data. Our minimal quantitative theory unifies spatiotemporal patterns across sessile organisms through local competition mediated by the laws of metabolic growth, which in turn, are the result of long-term evolutionary dynamics.

scholarly journals Benefits of water-related ecological infrastructure investments to support sustainable land-use: a review of evidence from critically water-stressed catchments in South Africa

2021 ◽  
Vol 8 (4) ◽  
Author(s):  
Alanna J. Rebelo ◽  
Petra B. Holden ◽  
Karen Esler ◽  
Mark G. New
Keyword(s):  
Land Use ◽  
Ecosystem Services ◽  
South African ◽  
Evidence Base ◽  
Sustainable Land Use ◽  
Financial Investment ◽  
Ecological Infrastructure ◽  
Catchment Areas ◽  
Infrastructure Investments

Investments to promote sustainable land-use within critical river catchment areas are often undertaken to provide benefits to society. Investments generally aim to protect or restore ecological infrastructure—the underlying framework of ecosystems, functions and processes that supply ecosystem services—for multiple benefits to society. However, the empirical evidence base from studies across the world on both mechanisms and outcomes to support these assumptions is limited. We collate evidence on the benefits of ecological infrastructure interventions, in terms of ecosystem services provided to society, from three major South African water-providing catchments using a novel framework. In these catchments, millions of US Dollars' worth of investments have been made into ecological infrastructure since 1996. We ask the question: is there evidence that ecological infrastructure interventions are delivering the proposed benefits? Results show that even in catchments with substantial, long-term financial investment into ecological infrastructure, research has not empirically confirmed the benefits. Better baseline data collection is required, and monitoring during and after ecological infrastructure interventions, to quantify benefits to society. This evidence is needed to leverage investment into ecological infrastructure interventions at scale. Investment at scale is needed to transition to more sustainable land-use to unlock greater benefits to nature and people.

scholarly journals An investigation of farm restructuring and sustainable land use - Tutira region, northern Hawke's Bay

1990 ◽  
pp. 51-54
Author(s):  
I.C. Brown ◽  
R.D. Black ◽  
J.M. King
Keyword(s):  
Land Use ◽  
Sustainable Land Use ◽  
Market Forces ◽  
Permanent Damage ◽  
Commercial Enterprise ◽  
Sufficient Magnitude

The severity of permanent damage caused by Cyclone Bola to an estimated 65 000 ha in northern Hawke's Bay is of sufficient magnitude to necessitate complete changes in land use over that region as a whole. Traditional responses to this problem have included a range of incentives which have been principally designed to ensure the continuation of the existing pastoral use. Recent studies have emphasised the need to rationalise land use on the basis of long term sustainability. The costs of facilitating and permanently establishing this change in land use will be high, and an appropriate sponsor must be found, as market forces and commercial enterprise alone will have insufficient incentive to effect the changes. Keywords sustainable land use, farm restructuring, Hawke's Bay

A sustainable plan for conserving forest biodiversity in far East Russia and northeast China

1997 ◽  
Vol 73 (5) ◽  
pp. 565-571 ◽  
Author(s):  
Bruce G. Marcot ◽  
Sergei S. Ganzei ◽  
Tiefu Zhang ◽  
Boris A. Voronov
Keyword(s):  
Land Use ◽  
Resource Use ◽  
Northeast China ◽  
Far East ◽  
Sustainable Land Use ◽  
Forest Biodiversity ◽  
River Watershed ◽  
East Russia ◽  
Land Use Plan

An ongoing, trinational project is providing the first environmentally sustainable economic development plan for the Ussuri River watershed (URW) in Far East Russia and northeast China. The URW is host to a unique mix of northern taiga and southern subtropical biota, and contains many endemic, relict, and highly threatened species of plants and animals. In Russia, severe monetary inflation and a shift to a market economy have left some aspects of forest biodiversity in jeopardy, particularly policing for wildlife poachers, regulating CITES (international wildlife trafficking) violations, ensuring long-term sustained production of timber and non-timber forest products, protecting unique habitats, and adequately staffing scientific reserves and funding needed research. In China, broad scale conversion of remaining wetlands to agriculture and rice paddies, and of diverse native forests to intensively managed, monocultural plantations, is helping to sustain the economy but is sacrificing biodiversity. A proposed sustainable land use plan has (1) mapped resource use areas, including both proposed and existing transborder nature areas, (2) encouraged foreign investment in both countries, and (3) encouraged sustainable development of natural resource markets that will be compatible with long-term conservation of biodiversity. A hallmark of this plan is integrating the needs of the people with the capacity of the land through both environmental protection and wise resource use. Key words: Russia, China, Far East, Ussuri River watershed, biodiversity, sustainable, land use plan, wildlife

scholarly journals The quality and health of soil in terms of sustainable land use

2014 ◽  
Vol 69 (3) ◽  
pp. 42-53
Author(s):  
DANICA FAZEKAŠOVÁ ◽  
EVA MICHAELI ◽  
STANISLAW BARAN ◽  
JANA CHOVANCOVÁ ◽  
STANISLAV TORMA
Keyword(s):  
Land Use ◽  
Chemical Properties ◽  
Monitoring And Evaluation ◽  
Sustainable Land Use ◽  
Available Phosphorus ◽  
Organic Carbon Content ◽  
Marginal Areas ◽  
Alkaline And Acid Phosphatase ◽  
Physical And Chemical

Soil quality represents the ability of the soil to secure environmental functions in a particular way of using it. Health of soil expresses protection and increasing biological productivity, environmental quality and health promotion of all living forms, including humans. This study presents the results of long-term monitoring and evaluation of selected parameters of soil in terms of sustainable land use in the marginal areas of the northeastern Slovakia During 1997–2013 (48º57'N, 20°05'E). Physical (bulk density, porosity), chemical (pH, anorganic nitrogen, available phosphorus, potassium, magnesium and organic carbon content) and biological (soil enzyme activity – urease, alkaline and acid phosphatase) soil properties and available heavy metal content (Cd, Pb and Ni) were monitored and statistically evaluated. The results show that in assessing the quality of soil and environmental pollution of soil the microbial parameters (activity of soil enzymes) appear to be useful. These parameters rapidly respond to environmental stress and can lead to changes in physical and chemical properties leading to early detection of soil degradation.

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