Investigation Of Land Use Change Research Articles

Study on land use and land cover change in Tianfu new area based on RS&GIS

Land use has taken on more significance as a result of population increase and urbanization, particularly in emerging nations. The management of natural resources like water, vegetation, and arable land is made easier by the direct observation of land use changes in particular locations at different periods through the use of land categorization photographs. This investigation of land use changes and their features in Tianfu New Area, Chengdu, is based on land satellite imagery from 2011 and 2021. Process the data, extract the land use Stochastic matrix, and do a thorough analysis using remote sensing and GIS tools. The findings show that there are five different forms of land usage in Tianfu District between 2011 and 2021: arable land, construction land, unused land, forest land, and water area, with arable land continually making up the greatest share of the overall area. The conversion of arable and forest land, along with relatively minor changes in the water area, has resulted in the highest rise in the area used for building among all other forms of land use. Additionally, there are large geographical disparities in land use changes, with the north and south of Tianfu New Area experiencing fewer major changes than the south.

Investigation of land use changes using the landscape ecology approach in Maragheh City, Iran

Urban development is an ongoing economic and social phenomenon that significantly impacts ecological systems. This study aims to investigate the land use changes and physical development patterns of Maragheh City and its effects on the urban landscape as a medium-sized city in the northwest of Iran. To reach this goal, land use maps for 1986, 1996, 2006, 2016, and 2020 were first processed from Landsat 5, 7, and 8 satellite images. ENVI 5.3 and ArcMap software were used to analyze land use alteration patterns, and FRAGSTATS software was used for land use metrics. The results indicate that constructed lands from 1986 to 2020 had the most changes and increased by 2157 ha, while green areas decreased by about 443 ha. This trend indicates the lack of land use integration and infill growth which created urban sprawl. Therefore, the growth pattern of Maragheh City in recent decades has followed scattered and unbalanced horizontal growth. There are significant ecological challenges in this area due to this trend, including the destruction of farms and fertile agricultural land and the replacement of it with scattered and incoherent urban and rural settlements.

Investigation of land use changes in rural areas using MCDM and CA-Markov chain and their effects on water quality and soil fertility in southof Iran.

The purpose of the study is to predict drought changes in Dariun, Fars Province, and their impact on water and soil quality. To prepare drought, water, and soil quality zoning maps, Landsat satellite images and the kriging method were used. The fuzzy maps and weights for each parameter were then determined using fuzzy and analytic hierarchy process (AHP) methods. Additionally, cellular automata (CA)-Markov chains were used in order to predict the impact of drought changes on water and soil quality. Using the fuzzy-AHP method, water quality and soil fertility in 2020 were lower compared to previous years, mainly because of land use changes that increased pollution. Based on results of the Markov and CA-Markov chains, approximately 31% of the region will have very poor levels of soil fertility and water quality in 2050. Further, based on remote sensing indicators, it is determined that about 25% of the region will be at high risk of drought in 2050. Thus, if adequate management of the region is not done, the possibility of living in these areas may diminish in the coming years due to drought and deteriorated water and soil quality.

Rio Doce State Park buffer zone: forest fragmentation and land use dynamics

The investigation of land use changes by anthropic processes, spatially and temporally, is a fundamental tool to establish correlations between landscape patterns and processes and management of the buffer zone of Conservation Units. This study aimed to analyze the forest fragmentation and land use dynamics in the buffer zone of the Rio Doce State Park (PERD), located in Minas Gerais, Brazil, for the year 2015. Its buffer zone was delimited to a radius of 10 km, covering a total area of 128.893,36 ha. Land use classification was based on Landsat 8 image, orbit 217, point 73 and 74, and two types of ecosystems were identified: natural and anthropic. In the thematic mapping, the pressure of the anthropic use over the natural was notified, as well as the high number of forest fragments, which is a negative impact on the resilience required for the conservation of biodiversity and the local Atlantic forest. The fragments have different shapes and sizes and are distributed throughout the buffer zone of the PERD. There is a need to adopt conservation strategies, such as environmental education, reforestation techniques, recovery of degraded areas and ecological corridors. Even with a worrying current scenario, this finding makes it possible to establish an optimistic point for biodiversity conservation, associated with a tendency to reduce the forces of direct changes on natural systems.

Looking back - Looking forward: A novel multi-time slice weight-of-evidence approach for defining reference conditions to assess the impact of human activities on lake systems

Lake ecosystems are sensitive recorders of environmental changes that provide continuous archives at annual to decadal resolution over thousands of years. The systematic investigation of land use changes and emission of pollutants archived in Holocene lake sediments as well as the reconstruction of contamination, background conditions, and sensitivity of lake systems offer an ideal opportunity to study environmental dynamics and consequences of anthropogenic impact that increasingly pose risks to human well-being. This paper discusses the use of sediment and other lines of evidence in providing a record of historical and current contamination in lake ecosystems. We present a novel approach to investigate impacts from human activities using chemical-analytical, bioanalytical, ecological, paleolimnological, paleoecotoxicological, archeological as well as modeling techniques. This multi-time slice weight-of-evidence (WOE) approach will generate knowledge on conditions prior to anthropogenic influence and provide knowledge to (i) create a better understanding of the effects of anthropogenic disturbances on biodiversity, (ii) assess water quality by using quantitative data on historical pollution and persistence of pollutants archived over thousands of years in sediments, and (iii) define environmental threshold values using modeling methods. This technique may be applied in order to gain insights into reference conditions of surface and ground waters in catchments with a long history of land use and human impact, which is still a major need that is currently not yet addressed within the context of the European Water Framework Directive.

OBJECT-LEVEL CHANGE DETECTION BASED ON HIGH-RESOLUTION REMOTE-SENSING IMAGES AND ITS APPLICATION IN JAPANESE EARTHQUAKE ON MARCH 11, 2011

Abstract. In accordance with the characteristics of change detection based on high-resolution remote-sensing images, this paper has put forward an object-level change detection method that is based on multi-feature integration and can take into account the properties of different types of object. This method classifies the most essential change information in applications into artificial objects related change information, water-related change information and vegetation-related change information. Direct association of object types and radiation, texture and geometric features is established by analyzing the characteristics of the three types of objects. During the application of object-level change detection method, first, feature vectors of objects are constructed by controlling the weight of radiation, texture and geometric features in different ways; then feature vectors of objects in multi-temporal images are analyzed with the method of object change vector analysis to obtain the change information of object types that are sensitive to a certain feature. In order to verify the validity of this method, this paper uses the high-resolution remote-sensing images from the Internet captured before and after the Japanese earthquake on March 11, 2011 to conduct some change detection experiments based on multifeature integration. Damage information is extracted and by controlling the weight of features, building damage, damage caused by submergence of seawater and vegetation damage are detected respectively. Experiments show that the method and processing put forward in this paper, flexible, practical and adaptable, are effective in such applications as the extraction of information about damage caused by earthquake and tsunami, and investigation of land use change.

The Engineering Management Research Based on Large-scale SPOT5 Images in the Second Investigation of Land-use Change

A new investigation of land use changes will be carried out under the ministry of land and resources which will construct a new system of land investigating methods and managements.The new investigation can obtain comprehensive and wide-ranging results respect to the first land investigation during 1980's through making full use of new techniques.This paper discussed the orthorectifying method for SPOT5 satellite image practicing in continuous SPOT5 images in large scale concerning the second investigation of land use changes.The engineered management of SPOT5 was introduced,and the methods of accuracy evaluation according to the error of the site-selecting,digital elevation model and endogenous factors of the transducer were expatiated.

Investigation of land use changes on soil erosion process using geographical information system

Land use change quantified for the last 50 years within and near a fast growing agricultural land in Neka River Basin, using geographic information systems. Land cover and land use change was projected for the next decade using topography, geology, land use maps and remote sensing data of the study area. The study explored the relationships between agricultural land growth and landscape changes. The land use changes assessed among the different land cover classes. It is important to mention that conducting of the present study a very severe land cover changes taken place as the result of agricultural land development. These changes in land cover led to the forest degradation of the study area. Relationship between land-use changes and agricultural growth offered a more robust prediction of soil erosion in Neka watershed. This study aims to find the relationships between land use pattern, erosion and the sediment yield in the study area. The land use coefficient has applied in the model of erosion potential method to forecast the effect of the land type to reduce the erosion. The results of this study indicated that the total sediment yield of the study area has notably decreased to 89.24 % after an appropriate land use/cover alteration. The estimated special erosion for the southern Neka Basin is about 144465.1 m 3 /km 2 where after management policy is predicted 15542.9 m 3 /km 2 /y. Therefore, the total difference for the study area has estimated about 128922.2 m 3 /km 2 /y.

Land-Use Model for Service Area Projection

A new method for projecting future sewer service areas is developed, based on a model of land use and intra-urban migration behavior. The derivation of a partial differential equation describing residential population density profiles through time is based on an analogy to the recharge well in an unconfined aquifer, and an adaptation of Darcy's Law. A numerical solution of this equation, coupled with an evaluation of the changes in residential density at the service area periphery, is the basis for generating successive future sewer service areas. Because the model forces the user into an investigation of land-use changes, it is suggested that the method provides a more rational basis for the specification of design year flows for interceptors and sewage treatment facilities than do the traditional subjective expedients.

Monographs of fragrance raw materials: l-carveol

Lake ecosystems are sensitive recorders of environmental changes that provide continuous archives at annual to decadal resolution over thousands of years. The systematic investigation of land use changes and emission of pollutants archived in Holocene lake sediments as well as the reconstruction of contamination, background conditions, and sensitivity of lake systems offer an ideal opportunity to study environmental dynamics and consequences of anthropogenic impact that increasingly pose risks to human well-being. This paper discusses the use of sediment and other lines of evidence in providing a record of historical and current contamination in lake ecosystems. We present a novel approach to investigate impacts from human activities using chemical-analytical, bioanalytical, ecological, paleolimnological, paleoecotoxicological, archeological as well as modeling techniques. This multi-time slice weight-of-evidence (WOE) approach will generate knowledge on conditions prior to anthropogenic influence and provide knowledge to (i) create a better understanding of the effects of anthropogenic disturbances on biodiversity, (ii) assess water quality by using quantitative data on historical pollution and persistence of pollutants archived over thousands of years in sediments, and (iii) define environmental threshold values using modeling methods. This technique may be applied in order to gain insights into reference conditions of surface and ground waters in catchments with a long history of land use and human impact, which is still a major need that is currently not yet addressed within the context of the European Water Framework Directive.

An Exploratory Profile of Land Use Development Patterns at Interstate Interchanges in Alabama

Optimal and efficient planning, use, and protection of interchanges in urban and nonurban areas is necessary if the Interstate Highway System is to achieve functional goals of traffic movement and serve as a catalyst to economic and social development, both in the short and long run. The initial monetary outlays for interchange construction are significant, and this reason alone partially justifies detailed socioeconomic and land use impact studies to insure proper interchange planning, development, and utilization. An orderly and controlled process of land development and change near interchanges is necessary for the most efficient allocation of resources and to avoid congestion and early obsolescence. However, there is presently a deficiency of information that will allow the planning process forthese areas to anticipate land uses and traffic demand and plan accordingly. The analysis focused on land use changes at every interstate interchange in Alabama on which construction began during the 1964-1970 period (157 inter changes). The basis for this investigation of land use changes was a series of aerial photographs taken annually by the Alabama Highway Department during the 1964-1970 period.