scholarly journals Spatio-Temporal Coordination and Conflict of Production-Living-Ecology Land Functions in the Beijing-Tianjin-Hebei Region, China

Land ◽  
2020 ◽  
Vol 9 (5) ◽  
pp. 170 ◽  
Author(s):  
Zhuxiao Yu ◽  
Erqi Xu ◽  
Hongqi Zhang ◽  
Erping Shang
Keyword(s):  
Land Use ◽  
Temporal Trends ◽  
Evaluation Process ◽  
Utilization Efficiency ◽  
Entropy Weight ◽  
Temporal Coordination ◽  
The North ◽  
Spatio Temporal ◽  
Coordination Degree ◽  
Land Use Functions

Assessment of multiple land use functions promotes both utilization efficiency of land and regional coordination. Different personal and public products and services are offered by various land use types, meaning their functionality varies. Lack of judgment on temporal trends, turning points, or consideration of multi-source indicators like the ecological and air quality index leads to uncertainties in urban multifunctionality evaluation and functional orientation. In this study, the production-living-ecology land use function index system and evaluation process was improved using an entropy weight, triangle model, and coupling coordination degree. The production-living-ecology land use function (PLELUF) is defined from land use multi-functions. The Beijing-Tianjin-Hebei urban agglomeration was the representative area. The model was applied to quantify land use functions and measure spatio-temporal coordination and conflict from 1990 to 2015. Results found that the production and living functions displayed an overall upward trend and the growth rate of production function is larger, doubling from 1990 to 1995, while living function increases steadily. Ecology function remained steady from 1990 to 2000 but increased afterward. Land use function stage became balanced in ecology-living-production after 2005. No function-balanced cities existed in 1990; nine function-balanced cities were found in 2015. The coupling coordination degree increased from a slight conflict to a high coordination. Land use multi-functionality was high in the north and low in the south in 2015; Beijing had the most significant multifunctionality. This study can aid land use zoning and sustainable land management.

scholarly journals Recessive Transition Mechanism of Arable Land Use Based on the Perspective of Coupling Coordination of Input–Output: A Case Study of 31 Provinces in China

Land ◽  
2021 ◽  
Vol 10 (1) ◽  
pp. 41
Author(s):  
Yi Lou ◽  
Guanyi Yin ◽  
Yue Xin ◽  
Shuai Xie ◽  
Guanghao Li ◽  
...  
Keyword(s):  
Land Use ◽  
Evaluation Model ◽  
Arable Land ◽  
Temporal Trends ◽  
Mainland China ◽  
Input Output ◽  
Transition Mechanism ◽  
Input And Output ◽  
Spatio Temporal ◽  
Arable Land Use

In the rapid process of urbanization in China, arable land resources are faced with dual challenges in terms of quantity and quality. Starting with the change in the coupling coordination relationship between the input and output on arable land, this study applies an evaluation model of the degree of coupling coordination between the input and output (D_CCIO) on arable land and deeply analyzes the recessive transition mechanism and internal differences in arable land use modes in 31 provinces on mainland China. The results show that the total amount and the amount per unit area of the input and output on arable land in China have presented different spatio-temporal trends, along with the mismatched movement of the spatial barycenter. Although the D_CCIO on arable land increases slowly as a whole, 31 provinces show different recessive transition mechanisms of arable land use, which is hidden in the internal changes in the input–output structure. The results of this study highlight the different recessive transition patterns of arable land use in different provinces of China, which points to the outlook for higher technical input, optimized planting structure, and the coordination of human-land relationships.

scholarly journals Coupling Analysis of Urban Land Use Benefits: A Case Study of Xiamen City

Land ◽  
2020 ◽  
Vol 9 (5) ◽  
pp. 155
Author(s):  
Xuanming Ji ◽  
Kun Wang ◽  
Tao Ji ◽  
Yihua Zhang ◽  
Kun Wang
Keyword(s):  
Land Use ◽  
Urban Land ◽  
Urban Land Use ◽  
Environmental Benefits ◽  
Sustainable Urban Development ◽  
Positive Trend ◽  
Entropy Weight ◽  
Xiamen City ◽  
The Government ◽  
Coordination Degree

The high coupling coordination of urban land use benefits is a significant factor for urbanization and sustainable urban development. This study, based on the statistical data from 2002 to 2017 of Xiamen City, constructs an index system that includes social, economic, ecological, and environmental benefits by evaluating the overall coupling coordination degree of land use benefits, using the entropy weight method (EWM), the coupling coordination degree (CCD) model, and the dynamic coupling coordination degree (DCCD) model. The results show that the coupling degree of Xiamen City’s land use is relatively low, while showing a positive trend of development. In terms of the management of land use, the market should play a major role to achieve more efficient land use and promote industrial upgrading. The government should take responsibility for supplying infrastructure, perfecting related laws and regulations, intervening the land use according to the law of markets, and expanding the investment in education, as well as science and technology.

Dynamics of land cover and land use in Pernambuco (Brazil): Spatio-temporal variability and temporal trends of biophysical parameters

2021 ◽  
pp. 100677
Author(s):  
Alan Cézar Bezerra ◽  
Jhon Lennon Bezerra da Silva ◽  
Geber Barbosa de Albuquerque Moura ◽  
Pabrício Marcos Oliveira Lopes ◽  
Cristina Rodrigues Nascimento ◽  
...  
Keyword(s):  
Land Use ◽  
Land Cover ◽  
Temporal Variability ◽  
Temporal Trends ◽  
Biophysical Parameters ◽  
Spatio Temporal

scholarly journals Research on Sustainable Land Use Based on Production–Living–Ecological Function: A Case Study of Hubei Province, China

2021 ◽  
Vol 13 (2) ◽  
pp. 996
Author(s):  
Chao Wei ◽  
Qiaowen Lin ◽  
Li Yu ◽  
Hongwei Zhang ◽  
Sheng Ye ◽  
...  
Keyword(s):  
Land Use ◽  
Rapid Development ◽  
Hubei Province ◽  
Sustainable Land Use ◽  
Added Value ◽  
Key Factors ◽  
Entropy Weight ◽  
Absolute Level ◽  
The World ◽  
Coordination Degree

After decades of rapid development, there exists insufficient and contradictory land use in the world, and social, economic and ecological sustainable development is facing severe challenges. Balanced land use functions (LUFs) can promote sustainable land use and reduces land pressures from limited land resources. In this study, we propose a new conceptual index system using the entropy weight method, regional center of gravity theory, coupling coordination degree model and obstacle factor identification model for LUFs assessment and spatial-temporal analysis. This framework was applied to 17 cities in central China’s Hubei Province using 39 indicators in terms of production–living–ecology analysis during 1996–2016. The result shows that (1) LUFs showed an overall upward trend during the study period, while the way of promotion varied with different dimensions. Production function (PF) experienced a continuous enhancement during the study period. Living function (LF) was similar in this aspect, but showed a faster rising tendency. EF continued to increase during 1996–2011, but declined during 2011–2016. LUFs were higher in the east than in the west, and slightly higher in the south than in the north. The spatial coordination was enhanced during the study period. (2) The overall level of coupling coordination degree continued to increase during 1996–2016, while regional difference declined obviously, indicating a good developing trend. However, the absolute level was still not satisfactory. (3) The obstacle degree of PF was always dominant, and LF showed a downward trend, while EF showed an increasing trend. Benefit index (A2), Comfort index (B2) and Green index (C1) constituted the primary obstacle factor for each dimension. Added-value of high and new technology industry (A2-3) and land use intensity (A3-2) were key factors restricting PF. Number of medical practitioner (B1-4) and internet penetration rate (B2-3) were key factors restricting LF. Air quality rate (C3-1) and wetland coverage rate (C1-4) were key factors restricting EF. This study can help to give a more detailed understanding of sustainable land use for the particularity of China from a land function perspective and provide lessons and suggestions for other developing countries in the world.

scholarly journals Analysis of Long-Term Spatio-Temporal Trends in Land Use/Land Cover in Devikulam Taluk, Kerala Using Geospatial Techniques

2019 ◽  
Vol 8 (3) ◽  
pp. 34-52
Author(s):  
Srishti Solanki ◽  
Chindu Chandran ◽  
J.K. Garg ◽  
Prodyut Bhattacharya
Keyword(s):  
Land Use ◽  
Land Cover ◽  
Land Use Planning ◽  
Temporal Trends ◽  
Thematic Mapper ◽  
Anthropogenic Pressure ◽  
Land Use Land Cover ◽  
The Sustainable Development ◽  
Drastic Increase ◽  
Spatio Temporal

This study was undertaken to evaluate the spatial as well as the temporal changes in land use/ land cover in Devikulam Taluk, Idukki District, Kerala, and to assess the effects of increasing anthropogenic pressure on the fragile ecosystem of this area. For analysis, land use/ land cover maps of four different years, i.e., 1988, 1999, 2008 and 2017, were generated using LANDSAT TM (Thematic Mapper), ETM+ (Enhanced Thematic Mapper Plus) and OLI/TIRS (Operational Land Imager/Thermal InfraRed Sensor) satellite imagery. The results of the study suggested that there has been a drastic increase in the built-up area and a continuous decline in the forest area in Devikulam from 35.31 km2 built-up in 1988 to 73.92 km2 in 2017, and 1374.52 km2 forest in 1988 to 1247.24 km2 in 2017, respectively. Over this period of approximately 40 years, around 47.85 km2 area of the forest got converted to built-up. This could be due to the increasing anthropogenic pressure in terms of migration or booming tourism contributing to the increased demand for infrastructures. Therefore, appropriate land use planning is a fundamental step towards the sustainable development of this biogeographically rich and unique area of Devikulam Taluk.

scholarly journals Spatio-temporal difference analysis of land use efficiency in Lanxi Urban Agglomeration based on SBM-Undesirable model

2020 ◽  
Vol 194 ◽  
pp. 05062
Author(s):  
Chunyu Fu ◽  
Peiji Shi ◽  
Tao Feng ◽  
Weiping Zhang
Keyword(s):  
Land Use ◽  
Regional Differences ◽  
Urban Agglomeration ◽  
Theil Index ◽  
Spatial Difference ◽  
Land Use Efficiency ◽  
The North ◽  
Green Development ◽  
Use Efficiency ◽  
Spatio Temporal

Based on the connotation of green development, SBM-Undesirable model was used to measure the land use efficiency of Lanxi Urban Agglomeration in 2006, 2010, 2014 and 2018, and Theil Index and Spatial Autocorrelation Methods were used to reveal the spatial difference characteristics. The results show that: (1) From 2006 to 2018, the county land use efficiency of Lanxi Urban Agglomeration increased steadily, and the regional differences first expanded and then narrowed. (2) The land use efficiency of counties in Lanxi Urban Agglomeration presents a spatial difference law of “high in the middle-low in the periphery, high in the west and low in the east, and differentiated between the north and the south”, while the two provinces present a decreasing law of “west-east”. (3) The spatial agglomeration characteristics of land use efficiency in Lanxi Urban Agglomeration are remarkable. Locally, the high-high agglomeration is typical in the central region, while the low-low agglomeration spreads from southeast to southwest.

scholarly journals Spatio-temporal analysis of Maximum temperature over Iraq

2018 ◽  
Vol 29 (1) ◽  
pp. 1
Author(s):  
Aws Ali Al Khudhairy
Keyword(s):  
Temporal Trends ◽  
Surface Air Temperature ◽  
Kendall Test ◽  
Temporal Analysis ◽  
Maximum Temperature ◽  
Positive Trend ◽  
Seasonal Temperature ◽  
The North ◽  
Four Seasons ◽  
Spatio Temporal

Monthly Maximum surface air temperature at 23 stations in Iraq were analyzed for temporal trends and spatial variation during 1980-2015.Seasonal and annual temperature was analyzed using Mann-Kendall test to detect the significant trend .The results of temporal analysis showed that during winter ,spring , summer and Autumn have a positive trend in all the parts of Iraq. A tendency has also been observed towards warmer years, with significantly warmer summer and spring periods and slightly warmer autumn and winter, The highest increase is (3.9) oC in Basrah during the summer. The results of spatial analysis using the ArcGIS showed that the seasonal temperature can be divided into two or three distinct areas with high temperature in the south and decreasing towards north, where the trend of spatial temperature were decreasing from south to the north in all the four seasons.

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