scholarly journals Traditional Villages in Forest Areas: Exploring the Spatiotemporal Dynamics of Land Use and Landscape Patterns in Enshi Prefecture, China

Forests ◽  
2021 ◽  
Vol 12 (1) ◽  
pp. 65
Author(s):  
Luqi Wang ◽  
Chen Wen
Keyword(s):  
Land Use ◽  
Urban Growth ◽  
Spatiotemporal Analysis ◽  
Environmental Conservation ◽  
Lower Proportion ◽  
Landscape Patterns ◽  
Landscape Diversity ◽  
Limited Attention ◽  
Cultivated Land ◽  
Rural Revitalization

In the context of the implementation of rural revitalization strategies in China, limited attention has been paid to the landscape patterns of traditional villages that are located in vulnerable environments. This study explores the land-use dynamics and landscape patterns of traditional villages in Enshi Prefecture, China. Based on a spatiotemporal analysis of land use and landscape metrics, we analyzed the prefecture and the environment surrounding 73 traditional villages. The results show that, from 2000 to 2020, most villages have had an increased share of forest, a decreased share of cultivated land and grassland, and a decreased level of landscape diversity and fragmentation. Additionally, villages at a higher elevation or with a steeper slope are associated with a lower level of landscape diversity, a lower proportion of cultivated land and grassland, and a higher proportion of forest. Overall, although the environment around the villages does not show dramatic changes in landscape patterns, land-use change at the prefecture level shows an increasing rate of urban growth from 2010 to 2020. For remote traditional villages in ecologically vulnerable and less-developed areas, caution is needed in the tradeoff between environmental conservation and economic development.

scholarly journals Evaluation of the status of land use/land cover change using remote sensing and GIS in Jewha Watershed, Northeastern Ethiopia

2021 ◽  
Vol 3 (4) ◽  
Author(s):  
Dereje Gebrie Habte ◽  
Satishkumar Belliethathan ◽  
Tenalem Ayenew
Keyword(s):  
Remote Sensing ◽  
Land Use ◽  
Land Cover ◽  
Change Detection ◽  
Catchment Area ◽  
Environmental Conservation ◽  
Land Use Land Cover ◽  
Cultivated Land ◽  
Plantation Forest ◽  
Bare Land

AbstractEvaluation of land use/land cover (LULC) status of watersheds is vital to environmental management. This study was carried out in Jewha watershed, which is found in the upper Awash River basin of central Ethiopia. The total catchment area is 502 km2. All climatic zones of Ethiopia, including lowland arid (‘Kola’), midland semi-arid (‘Woinadega’), humid highland (Dega) and afro alpine (‘Wurch’) can be found in the watershed. The study focused on LULC classification and change detection using GIS and remote sensing techniques by analyzing satellite images. The data preprocessing and post-process was done using multi-temporal spectral satellite data. The images were used to evaluate the temporal trends of the LULC class by considering the years 1984, 1995, 2005 and 2015. Accuracy assessment and change detection of the classification were undertaken by accounting these four years images. The land use types in the study area were categorized into six classes: natural forest, plantation forest, cultivated land, shrub land, grass land and bare land. The result shows the cover classes which has high environmental role such as forest and shrub has decreased dramatically through time with cultivated land increasing during the same period in the watershed. The forest cover in 1984 was about 6.5% of the total catchment area, and it had decreased to 4.2% in 2015. In contrast, cultivated land increased from 38.7% in 1984 to 51% in 2015. Shrub land decreased from 28 to 18% in the same period. Bare land increased due to high gully formation in the catchment. In 1984, it was 1.8% which turned to 0.6% in 1995 then increased in 2015 to 2.7%. Plantation forest was not detected in 1984. In 1995, it covers 1.5% which turned to be the same in 2015. The study clearly demonstrated that there are significant changes of land use and land cover in the catchment. The findings will allow making informed decision which will allow better land use management and environmental conservation interventions.

scholarly journals Modeling Land Use Changes and their Impacts on Non-Point Source Pollution in a Southeast China Coastal Watershed

2018 ◽  
Vol 15 (8) ◽  
pp. 1593 ◽  
Author(s):  
Xin Zhang ◽  
Lin Zhou ◽  
Yuqi Liu
Keyword(s):  
Land Use ◽  
Point Source ◽  
River Basin ◽  
Landscape Metrics ◽  
Land Use Changes ◽  
Landscape Patterns ◽  
Cultivated Land ◽  
Point Source Pollution ◽  
Coastal Watershed ◽  
Non Point Source Pollution

Changes in landscape patterns in a river basin play a crucial role in the change on load of non-point source pollution. The spatial distribution of various land use types affects the transmission of non-point source pollutants on the basis of source-sink theory in landscape ecology. Jiulong River basin in southeast of China was selected as the study area in this paper. Aiming to analyze the correlation between changing landscape patterns and load of non-point source pollution in this area, traditional landscape metrics and the improved location-weighted landscape contrast index based on the minimum hydrological response unit (HRULCI) were applied in this study, in combination with remote sensing and geographic information system (GIS) technique. The results of the landscape metrics showed the enhanced fragmentation extent and the decreasing polymerization degree of the overall landscape in the watershed. High values of HRULCI were concentrated in cultivated land, while low HRULCI values mostly appeared in forestland, indicating that cultivated land substantially enhanced non-point source pollution, while forestland inhibited the pollution process.

Changes of Land Use and its Prediction Based on CA-Markov Model in the Coastal Zone of Yancheng

2013 ◽  
Vol 726-731 ◽  
pp. 4929-4932
Author(s):  
Xian Bin Sun
Keyword(s):  
Land Use ◽  
Markov Model ◽  
Coastal Zone ◽  
Landscape Patterns ◽  
Space Distribution ◽  
Cultivated Land ◽  
Natural Wetland ◽  
Artificial Wetland ◽  
Wetland Area ◽  
Construction Land

For studying the influence of human activity on the change of land use type and ecological environment in coastal region, the coastal zone of Yancheng was selected to analyze the change of land use and spatial landscape pattern in the past 17 years by using geographic information system (GIS). The Markov model was applied to predict land use variation in the following 10 years. The results showed that: The land use structure in the coastal areas of Yancheng has undergone great changes from 1991 to 2008. It is demonstrated that the percentage of farmland area ascended from 36.42%. to 50.17%., and the artificial wetland area ascended from 9.96% to 20.22%,while the percentage of natural wetland area declined from 46.41% to 23.01%. Construction land increased five times (85.29km2) . Nature wetland, farmland and artificial wetland were the main land use types of research area with obvious reciprocal transformation. Nature wetland was mainly transferred to farmland and artificial wetland, and farmland was mainly transferred to artificial wetland and construction land in 1991-2008. The three types of time-space distribution extended to the coastal zone gradually. And the land exploitation activities became increasingly intensive. A series of landscape patterns changed because of severe human disturbance, such as obvious fragmentation, the dominance decrease, and the diversity and evenness increase, the degree of space across of the nature wetland and the artificial wetland increase. As a result of landscape fragmentation,ecological function in a landscape was declined. The simulated result by CA-Markov model indicated that cultivated land and artificial land continued to rise, the annual average increase rate of construction land was twice the earlier period and the reducing speed of natural wetland was 56.67% of the earlier stage. Between 1997 and 2018, the three types of land use (cultivated land, natural land and artificial wetland) have all extended to the coastal zone.

scholarly journals Using Satellite Image Fusion to Evaluate the Impact of Land Use Changes on Ecosystem Services and Their Economic Values

2021 ◽  
Vol 13 (5) ◽  
pp. 851
Author(s):  
Wang Shuangao ◽  
Rajchandar Padmanaban ◽  
Aires A. Mbanze ◽  
João M. N. Silva ◽  
Mohamed Shamsudeen ◽  
...  
Keyword(s):  
Land Use ◽  
Ecosystem Services ◽  
Economic Benefits ◽  
Landscape Patterns ◽  
Landscape Diversity ◽  
Shaanxi Province ◽  
Landsat 8 ◽  
Economic Values ◽  
Lulc Changes ◽  
The Impact

Accelerated land use change is a current challenge for environmental management worldwide. Given the urgent need to incorporate economic and ecological goals in landscape planning, cost-effective conservation strategies are required. In this study, we validated the benefit of fusing imagery from multiple sensors to assess the impact of landscape changes on ecosystem services (ES) and their economic values in the Long County, Shaanxi Province, China. We applied several landscape metrics to assess the local spatial configuration over 15 years (2004–2019) from fused imageries. Using Landsat-7 Enhanced Thematic Mapper Plus (ETM+), Landsat-8 Operational Land Imager (OLI) and Indian Remote Sensing Satellite System Linear Imaging Self Scanning Sensor 3 (IRS LISS 3) imageries fused for 2004, 2009, 2014 and 2019, we reclassified land use/land cover (LULC) changes, through the rotation forest (RF) machine-learning algorithm. We proposed an equivalent monetary metric for estimating the ES values, which also could be used in the whole China. Results showed that agriculture farmland and unused land decreased their spatial distribution over time, with an observed increase on woodland, grassland, water bodies and built-up area. Our findings suggested that the patterns of landscape uniformity and connectivity improved, while the distribution of landscape types stabilized, while the landscape diversity had a slight improvement. The overall ES values increased (4.34%) under a benefit transfer approach, mainly concerning woodland and grassland. A sensitivity analysis showed the selected economic value (EV) was relevant and suitable for the study area associated with our ES for LULC changes. We suggested that changes in landscape patterns affected the ESV trends, while the increases on some LULC classes slightly improved the landscape diversity. Using an interdisciplinary approach, we recommend that local authorities and environmental practitioners should balance the economic benefits and ecological gains in different landscapes to achieve a sustainable development from local to regional scales.

scholarly journals Simulation of Land Use Pattern Evolution from a Multi-Scenario Perspective: A Case Study of Suzhou City in Anhui Province, China

2021 ◽  
Vol 18 (3) ◽  
pp. 921
Author(s):  
Rongtian Zhang ◽  
Jianfei Lu
Keyword(s):  
Land Use ◽  
Thematic Mapper ◽  
Anhui Province ◽  
Landscape Patterns ◽  
Cultivated Land ◽  
Land Area ◽  
Construction Land ◽  
Ecological Protection ◽  
Suzhou City ◽  
S Model

Land use/land cover change is a frontier issue in the field of geography research. Taking Suzhou City in Anhui Province as the research case, based on thematic mapper /enhanced thematic mapper+ (TM/ETM+) remote sensing data from 1998 to 2018, through the transfer matrix model and modified conversion of land use and its effects at small region extent (CLUE-S) model, the simulation of the land use landscape pattern evolution was studied from a multi-scenario perspective. The results showed that in the past 20 years, landscape patterns have undergone spatial–temporal conversion, which was mainly manifested as the evolution from a cultivated land landscape and other agricultural land to construction land, and there was some transformation between other landscape types, but the transformation degree was not significant. The spatial autocorrelation factor was introduced to correct the CLUE-S model, and the Kappa index reached 0.83, indicating that the modified CLUE-S model had a good simulation accuracy. (I) In the cultivated land protection scenario, limiting the conversion of basic farmland use, and by 2028, the proportion of cultivated land increased by 5.23%, distributed in eastern Suzhou City; (II) in the economic development scenario, by 2028, the construction land area increased by 14.58%, and was distributed in the surrounding regions of the built-up areas; and (III) in the ecological protection scenario, by 2028, wood land, water, and other ecological protection land area increased, and were distributed in the central and eastern part of Suzhou City. Research can provide useful decision-making support for land use optimization and remediation.

scholarly journals Quantifying the Speed, Landscape Pattern Changes and Its Driving Factors of Shenzhen China

2021 ◽  
Vol 308 ◽  
pp. 02004
Author(s):  
Qinxue He ◽  
Yuhong Chen ◽  
Yunlei Su
Keyword(s):  
Land Use ◽  
Urban Area ◽  
Urban Growth ◽  
Urban Expansion ◽  
Urban Land ◽  
Driving Factors ◽  
Cultivated Land ◽  
Land Use Types ◽  
University Enrolment ◽  
Main Factors

Urban expansion has always been a topic of great concern. The purpose of this study is to explore land use change and the types of urban expansion in Shenzhen from 1995 to 2015, and to indicate the driving factors of this change, so as to provide a paradigm for other similar studies. By analysing the landscape expansion index and the correlation coefficient between urban area and various factors in Shenzhen, the following conclusions are obtained: 1) The main changes of land use types are the decrease of cultivated land and the increase of urban land. The land cover type changed most dramatically from 2000 to 2005, and the urban land transformed from cultivated land and grassland occupied most of the area. 2) Analysis shows that during the 20 years from 1995 to 2015, the main expansion type is edge-expansion. In detail, during the period from 1995 to 2010, the proportion of infilling has been increasing, while that of the outlying has been decreasing. After 2010, the urban area of Shenzhen increased slightly. Besides, according to the landscape expansion index, Shenzhen experienced dramatic urban expansion from 2000 to 2005. 3) Education and population growth are the main factors of urban growth in Shenzhen, which is reflected in the strongest correlation between university enrolment rate and urban area.

scholarly journals Agricultural Evolution: Process, Pattern and Water Resource Effect

2020 ◽  
Vol 10 (15) ◽  
pp. 5065
Author(s):  
Fengqin Yan ◽  
Jia Ning ◽  
Fenzhen Su
Keyword(s):  
Land Use ◽  
Water Resource ◽  
Paddy Field ◽  
Technological Development ◽  
Transition Probability ◽  
Land Use Changes ◽  
Landscape Patterns ◽  
Cultivated Land ◽  
Land Changes ◽  
Resource Effect

Assessing historical landscape change and its related land–use changes is necessary for understanding agricultural evolution processes and their ecological effects. In our study, the landscape patterns of paddy fields and dry farmland were studied using information obtained from remote-sensing data. Land-use changes related to cultivated land were analyzed based on transition probability index and trajectory computing method. Furthermore, the possible driving force and water resource effect of cultivated land changes were discussed. The results indicated that paddy field and dry farmland expanded by 56.99% and 10.92% in the West Songnen Plain, respectively, compared with their own area in 1990. Trajectory analyses showed that dry farmland was usually more stable than paddy field. Climate warming, wind speed reduction, population growth, technological development, as well as land use policies all drove cultivated land changes. The net water consumption of cultivated land showed an increased trend. To achieve the sustainable development of land-system, optimizing land-use structure as well as configuration between water and soil resources should be given more attention in the future.

scholarly journals MODIFICAÇÕES DO USO DA TERRA EM PAISAGENS COSTEIRAS: A ILHA COMPRIDA (SP) COMO ESTUDO DE CASO / Land Use Modifications in Coastal Landscapes: Comprida Island (São Paulo State) as Case Study

2016 ◽  
Vol 2 (1) ◽  
pp. 84
Author(s):  
Tissiana De Almeida de Souza ◽  
Regina Célia de Oliveira
Keyword(s):  
Land Use ◽  
Urban Growth ◽  
Spatial Organization ◽  
Sao Paulo ◽  
Environmental Conservation ◽  
São Paulo ◽  
Conservation Units ◽  
Paulo State ◽  
Coastal Landscapes ◽  
São Paulo State

As pesquisas sobre uso da terra revelam informações sobre a dinâmica socioeconômica e sobre a organização espacial atual e passada. Em áreas litorâneas, a aplicação de estudos temporais sobre o uso da terra é de suma importância, visto que são setores do território brasileiro associados ao processo de colonização e que se encontram sobre pressão antrópica ligada à especulação imobiliária e ao turismo. Neste contexto se enquadra o município de Ilha Comprida, localizado no litoral Sul do estado de São Paulo. Os objetivos do trabalho foram analisar as alterações de uso da terra no município nos cenários de 1962, 1981 e 2011-2012, a partir de cartas elaboradas na escala original de 1:10.000; e relacionar as modificações temporais do uso da terra com a legislação municipal e com a legislação ambiental referente às Unidades de Conservação da Natureza (UCs) existentes na ilha desde a década de 1980. Os resultados destacam modificações na cobertura vegetal natural associadas ao crescimento urbano e à especulação imobiliária, que se intensificaram durante a década de 1980. A instituição de UCs resultaram na sobreposição de zonas destinadas a objetivos diferenciados de proteção ambiental e de uso das terras.AbstractStudies on land use have provided information on the socioeconomic dynamics and the current and past spatial organization. The application of temporal studies on land use in coastal areas is of utmost importance, once these areas of the Brazilian territory are associated with the colonization process and are under anthropic pressure due to tourism and property speculation. The municipality of Comprida Island, located in the South coast of São Paulo state, is inserted in this context. The objectives of this study were to analyze the land use alterations in this municipality in the scenarios of 1962, 1981 and 2011-2012, using maps elaborated in the original scale of 1:10.000 and relate the temporal land use modifications with the municipal legislation and the environmental legislation regarding the Conservation Units existing in the island since the 1980s. The results highlight modifications in the natural vegetation cover associated with urban growth and property speculation, intensified in the 1980s. The creation of the Conservation Units resulted in the overlay of zones intended to distinct objectives; i.e., environmental conservation and land use.Keywords:Coastal areas; Land use; Conservation Units; Urban growth

Changes and driving forces of land use/cover and landscape patterns in Beijing-Tianjin-Hebei region

2012 ◽  
Vol 19 (5) ◽  
pp. 1182-1189 ◽  
Author(s):  
Qiao-Li HU ◽  
Yong-Qing QI ◽  
Yin-Cui HU ◽  
Yu-Cui ZHANG ◽  
Cheng-Ben WU ◽  
...  
Keyword(s):  
Land Use ◽  
Driving Forces ◽  
Landscape Patterns
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