Land cover changes that alter the reflection of sunlight from land surfaces albedo are another major driver of global climate change. The simplest example of manipulating landscape stability by pattern is the contour arrangement of land parcels to prevent soil erosion. The indirect land use change impacts of biofuels, also known as iluc or iluc pronounced as iluck, relates to the unintended consequence of releasing more carbon emissions due to land use changes around the world induced by the expansion of croplands for ethanol or biodiesel production in response to the increased global demand for biofuels. Patterns, causes and consequences of land usecover dynamics.
But it also reflects the importance of land as a key and finite resource for most human activities including agriculture, industry, forestry, energy production, settlement, recreation. A land use dynamic regionalization method was proposed to analyze major land use conversions. On the other hand, farm land cover reduced from 88 ha with a rate of land change. Patterns, causes and consequences of land usecover. Participants in the nca workshop nov 29dec 1, 2011, in salt lake city on land use and land cover presented and discussed a number of examples showing the influences of land use decisions on climate change adaptation options. The cause of land use change and effect of the change on crop. Cooper, anna gueorguieva, and robert johansson economic research service economic research report number 25 the role of economics and policy. The causal mechanism behind this shift in land use from one location to another is the influence of agricultural markets on regional or global land use. This research focus on the areas in the city, which are closer to the central business district, or town centre like rhodes park. Many studies have addressed effects of land use changes and land management on soil properties, and most of them have analyzed soil properties under different land use systems e.
Land degradation involves two interlocking systems. These processes have not been a major component of past intergovernmental panel on climate change ipcc reports. Landuse and landcover change introduction causes and. Spatial patterns and root causes of land use change east africa. Land use changes in different periods and a spatial illustration were calculated by gis and office excel figure 2, table 2. Land use change simply refers to the conversion of a piece of land s use by humans, from one purpose to another. Mulkey, june 2007 2 executive summary over this century anthropogenic climate change will present significant challenges to florida and to the world, as it will influence nearly every aspect of. Chapter four presents a discussion of population change on land sue patterns while chapter five presents the root causes of land use change. The influence of land use on the greenhouse effect is important, not only in terms of net emissions of greenhouse gases, but also in the potential to reduce emissions through changing land use policies. When the land is disturbed, the stored carbon dioxidealong with methane and nitrous oxideis emitted, reentering the atmosphere. Lambin department of geography, university of louvain, louvain, belgium abstract this study attempts to identify how much understanding of the driving forces of landuse changes can be gained through a spatial, statistical. Landuse changes lucs across china indicated a significant variation in. Spatiotemporal characteristics, patterns, and causes of land.
Land use and land use changes can significantly contribute to overall climate change. Land pollution is a major problem around the world and is caused by a variety of factors. Abstract this research study examines the causes of forest cover change, the rate of land use land cover change in gog district, gambella regional state between the years 19902017 using geospatial techniques. Landuse change and emerging infectious disease on an. Therefore, land use patterns may be essential factors in determining landscape stability and should have the attention of land use planners. This constitutes both the policy content and direction. The most direct influence is through the alteration of earths albedo, or surface reflectance.
Shifting into possibility negative impact through the land use perspective for social activities is affecting land cover to change, especially in biodiversity, water and earth radiation, trace gas emission, and other processes that come together to affect the climate and biosphere 2, 3. Land use land cover changes in detection of water quality. This study looks at the effects of residential commercial land use changes on formal housing stock, in lusaka city. The report is part of the idbs ongoing commitment to address the challenges of agriculture and climate change in latin america, in this case. Land use is obviously constrained by environmental factors such as soil characteristics, climate, topography, and vegetation. Environmental effects of agricultural land use change united states department of agriculture ruben n. Lubowski, shawn bucholtz, roger claassen, michael j. In the last decades, due to climate changes, soil deterioration, and land useland cover changes lulccs, land degradation risk has become one of the most important ecological issues at the global level.
Climate change and land use report to the century commission s. Causes of the global warming observed since the 19th century. In addition to emissions of heattrapping greenhouse gases from energy, industrial, agricultural, and other activities, humans also affect climate through changes in land use activities taking place on land, like growing food, cutting trees, or building cities and land cover the physical characteristics of the land surface, including grain crops, trees, or concrete. Moving beyond the myths article pdf available december 2001 with 7,254 reads how we measure reads. A landuse dynamic regionalization method was proposed to analyze major landuse conversions. Abstract this research study examines the causes of forest cover change, the rate of land use land cover change in gog district, gambella regional state between. This article tracks some of the major myths on driving forces of landcover change and proposes alternative pathways of change that are better supported by case study evidence. Landuse change and emerging infectious disease on an island. Some of main causes of soil pollution include deforestation and consequent erosion, agriculture, industry, mining, landfills and illegal dumping of waste as well as urbanization and construction 8.
This article tracks some of the major myths on driving forces of land cover change and proposes alternative pathways of change that are better supported by case study evidence. This area has experienced rapid and extensive land use change over the past 30 years in response to a variety of economic, cultural, political, institutional and demographic processes campbell et al. This may first have occurred with the burning of areas to enhance the. Developing a residential area due to land use change. The change from grassland to farmland took place in the grazing and farming interlocked west. We found that cropland and forest always occupied the largest area in 2010, with the proportion being approximately 89%, followed by. Deforestation and climate change congressional research service 1 lobal climate change is a widespread and growing concern that has led to extensive congressional and international discussions and negotiations.
However, between urban expansion and agricultural land use change it effect. The report is part of the idbs ongoing commitment to address the challenges of agriculture and climate change in. Today, we have brought you the causes and effects of it. Climate change mitigation strategies have focused on reducing emissions of greenhouse gases ghgs, especially carbon dioxide co 2. Land is one of three major factors of production in classical economics along with labor and capital and an essential input for housing and food production. Spatial patterns and root causes of land use change east. Spatiotemporal characteristics, patterns, and causes of. Furthermore, any landuse change that influences the amount, distribution, or type of vegetation in a region can affect the concentrations of biogenic aerosols, though the impact of such changes on climate is indirect and relatively minor. Moving beyond the myths article pdf available in global environmental change 114 december 2001 with 3,548 reads how we measure reads. An assessment of the global impact of 21st century land. Mulkey, june 2007 2 executive summary over this century anthropogenic climate change will present significant challenges to florida and to the world, as it will influence nearly every aspect of our planets living systems and human economy. An overview land use cover changes are influenced by a variety of factors operating on more than one spatial and temporal level and acting not in isolation but in intricate webs of place.
Proximate causes of landuse change in narok district, kenya. As a result, scientific investigation of the causes and consequences of lulcc. Land use and land cover change is driven by human actions and also drives changes that limit availability of products and services for human and livestock, and it can undermine environmental health as well. The purpose of this report is to synthesise findings on the patterns and processes of land use and land management change, and their root causes. Pdf land use change and causes in the xiangxi catchment. Thus, land use is the backbone of agricultural economies and it provides substantial economic and social benefits. Land pollution is common, and it is important for us all to know about its crippling effects. Although natural forces have the greatest potential for altering landscapes and land cover, the current human imprint on the land in the great lakes area is obvious and substantial. For example, the replacement of forest by cropland and pasture in the middle latitudes over the past several centuries has led to an increase in albedo, which in turn.
The present rural land use patterns have been determined by the interaction of man with the vegetation cover and in response to the changing climate since the. The conversion of natural forests and wetland to cultivated and settlement land is major change observed in the study period. These chaotic and occasionally conflicting changes were largely caused by lack of stability and consistency in agricultural land use policies promulgated. Land use and land cover change national climate assessment. For example, land may be converted from cropland to grassland, or from wild land e. Land use, landuse change, and forestry lulucf, also referred to as forestry and other land use folu, is defined by the united nations climate change secretariat as a greenhouse gas inventory sector that covers emissions and removals of greenhouse gases resulting from direct humaninduced land use such as settlements and commercial uses, landuse change, and forestry activities. Factors influencing landuse and landcover change eolss.
We use ssa to determine the amount of temperature change caused by the internal variability. Land use control must strike a balance between private property rights and the public. Land use changes and their effects on the value of ecosystem. Chapter three presents the impact on land tenure and utilisation. The spatiotemporal characteristics, differences, and causes of land use changes at a national scale were then examined. Land use changes and their effects on the value of. Climate change and agriculture in jamaica agricultural. There are a number of ways in which changes in land use can influence climate. The focus on the consequences of land use and land cover change at the usgs has evolved to be a principal research. Similarly, landuse change may involve either conversion from one type of use to another i. An overview landusecover changes are influenced by a variety of factors operating on more than one spatial and temporal level and acting not in isolation but in intricate webs of place. Effects of land use change on land degradation reflected.
Climate change and land use in florida university of south. Land use changes therefore have both direct and indirect effects on freshwater ecosystems with the former having immediate ecological impacts e. Change the type of use, like a big house into office. Human activities ranging from farming to city building are affecting the.
We use our scm 9 to produce simulations of the his torical globalmean temperature change by minimizing the rootmeansquare differences between observed and. We found that cropland and forest always occupied the largest area in 2010, with the proportion being approximately 89%, followed by wetland, building land, grassland, and wasteland. Historical patterns of land use change were examined in six sites. These emissions are believed to cause regional and global cooling by the reflection of sunlight from particulates and aerosols, and by their effects on cloud cover. Common understanding of the causes of landuse and landcover change is dominated by simplifications which, in turn, underlie many environmentdevelopment policies. The book is a guide to the scientific and policy debate concerning the roles of agriculture, forestry and other activities leading to global warming. Indeed, luc, food production and agricultural change are reported to collectively account for almost half of all global zoonotic eids.
Pdf common understanding of the causes of landuse and landcover change is dominated by simplifications which, in turn, underlie many. Common understanding of the causes of land use and land cover change is dominated by simplifications which, in turn, underlie many environmentdevelopment policies. Lets have a look at these activities in detail to see. Pdf the impact of land useland cover changes on land.
The effects of a changing planet are not limited to those caused by atmospheric and climate changes but also to more subtle changes in land use and. Land use changes lucs across china indicated a significant variation in. Factors influencing land use and land cover change. Desertification has been defined as land degradation in arid, semiarid, and dry subhumid areas resulting from various factors, including climatic variations and human activities11. Vegetation and soils typically act as a carbon sink, storing carbon dioxide that is absorbed through photosynthesis. However there is some lack of consistency in the use this term, elsewhere defined simply as the management of land to meet human. Aug 09, 2018 land pollution is a major problem around the world and is caused by a variety of factors. Proximate causes of landuse change in narok district. Adjusting to the current space condition, like classify a big house into flat. The interactions of population, affluence, and technology as causes of environmental change have been explored extensively for implications appropriate for land use, see lee 1986, but research on the direct association of affluence or technology with landuse change is not as common.
Landuse change luc is reported to be a major driver of emerging infectious diseases e. Editorial impacts of land use change on climate the us national research council nrc, 2005 recommended the expansion of the climate change issue to include land use and landcover processes as an important climate forcing. Human activity and related land use change are the primary cause of accelerated soil erosion, which has substantial implications for nutrient and carbon cycling, land productivity and in turn. Identifying distal and proximate drivers of tropical deforestation has been one of the main concerns of the literature on landuse change kaimowitz and angelsen. Root causes of land use change in the loitokitok area. Land use change simply refers to the conversion of a piece of lands use by humans, from one purpose to another. Environmental effects of agricultural landuse change. Editorial impacts of land use change on climate the us national research council nrc, 2005 recommended the expansion of the climate change issue to include land use and land cover processes as an important climate forcing. Estimated changes in land use from 1700 to 1995 goldewijk and battjes, 1997. Beyond proximate and distal causes of landuse change. Effects of land use change on land degradation reflected by. These changes are attributed to only one main factor in. The spatiotemporal characteristics, differences, and causes of landuse changes at a national scale were then examined.
The change is presented as a culmination of the land tenure problem. Patterns of lulc change the land usecover trend analysis made for the two consecutive periods 19571985 and 19852005 has indicated that the watershed was subject to considerable land use changes figs. Indirect land use change takes place when a direct change in land use in one location, is causally connected to a corresponding change in land use in another location. Environmental effects of agricultural landuse change united states department of agriculture ruben n. Many studies have addressed effects of landuse changes and land management on soil properties, and most of them have analyzed soil properties under different landuse systems e. Certain types of land use change have well known words associated with. The indirect land use change impacts of biofuels, also known as iluc or iluc pronounced as iluck, relates to the unintended consequence of releasing more carbon emissions due to landuse changes around the world induced by the expansion of croplands for ethanol or biodiesel production in response to the increased global demand for biofuels as farmers worldwide respond to higher crop.
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