scholarly journals Measuring the Cultivated Land Use Efficiency of the Main Grain-Producing Areas in China under the Constraints of Carbon Emissions and Agricultural Nonpoint Source Pollution

2018 ◽  
Vol 10 (6) ◽  
pp. 1932 ◽  
Author(s):  
Hualin Xie ◽  
Yanwei Zhang ◽  
Yongrok Choi
Keyword(s):  
Land Use ◽  
Nonpoint Source Pollution ◽  
Carbon Emissions ◽  
Nonpoint Source ◽  
Cultivated Land ◽  
Land Use Efficiency ◽  
Agricultural Nonpoint Source Pollution ◽  
Use Efficiency ◽  
Agricultural Nonpoint Source

scholarly journals Spatial-Temporal Characteristics of Cultivated Land Use Efficiency in Major Function-Oriented Zones: A Case Study of Zhejiang Province, China

Land ◽  
2020 ◽  
Vol 9 (4) ◽  
pp. 114
Author(s):  
Chaozheng Zhang ◽  
Yangyue Su ◽  
Gangqiao Yang ◽  
Danling Chen ◽  
Rongxuan Yang
Keyword(s):  
Land Use ◽  
Carbon Emissions ◽  
Agricultural Production ◽  
Regional Disparity ◽  
Cultivated Land ◽  
Major Function ◽  
Ecological Economic ◽  
Land Use Efficiency ◽  
Use Efficiency ◽  
Economic Zones

Promoting cultivated land use efficiency (CLUE) coordinated development in various major function-oriented zones is a measure to deal with unbalanced development of territorial space in China. Taking the optimized development, key development, agricultural production, ecological function, and ecological economic zones of Zhejiang province as research objects, this study incorporated agricultural carbon emission into the measurement framework of CLUE and analyzed the regional disparity and the convergence of CLUE from 2008 to 2017, using slack-based measure model (SBM), the Theil index, and convergence theory. The main results are as follows: (1) The CLUE value that considered agricultural carbon emissions was lower than the CLUE value that did not consider agricultural carbon emissions; thus, agricultural carbon emissions had a negative effect on CLUE. (2) The CLUE value of the five major function-oriented zones showed an increasing trend; after ranking the CLUE value, the CLUE of the optimized development zones was the highest, followed by the ecological function, ecological economic, and key development zones, and that of the agricultural production zones was the lowest, indicating significant regional disparity. (3) The overall disparity of CLUE presented an upward trend, and the within-regional disparity is the main source of the overall disparity. (4) Neither σ convergence nor absolute β convergence occurred in the CLUE of the five major function-oriented zones, but conditional β convergence occurred among the optimized development and ecological economic zones. Although the planning of major function-oriented zones reflects the regional disparity and convergence of CLUE to some extent, the CLUE under the control of major function-oriented zones is not consistent with the function positioning.

scholarly journals Land Economic Efficiency and Improvement of Environmental Pollution in the Process of Sustainable Urbanization: Case of Eastern China

Land ◽  
2021 ◽  
Vol 10 (8) ◽  
pp. 845
Author(s):  
Binbin Chang ◽  
Lei Chen
Keyword(s):  
Land Use ◽  
Environmental Pollution ◽  
Carbon Emissions ◽  
Temporal Evolution ◽  
Eastern China ◽  
Land Resources ◽  
Land Use Efficiency ◽  
Use Efficiency ◽  
Spatio Temporal ◽  
Land Economic

Economic development, environmental protection and land resources are important components in sustainable cities. According to the environmental Kuznets curve, developing countries are prone to environmental pollution problems while developing their economies. At the same time, as urbanization progresses, the problem of inadequate land resources and land use efficiency in China is coming to the fore. Although China is a developing country, it began to actively implement environmental protection measures years ago in an effort to transform itself into an innovative country. Therefore, as an economic and policy pioneer region, can eastern China benefit from all three aspects of land–economy–environment at the same time? Or will the increase in land economic efficiency (Land_EcoE) and the improvement of environmental pollution occur simultaneously? With the characteristics of land use efficiency and other concepts, this study combines economic factors and land factors to establish a Land_EcoE evaluation system. On the basis of mapping the spatio-temporal evolution of carbon emissions and Land_EcoE, and discussing the spatio-temporal evolution characteristics and correlation between them initially and visually by means of geographic data visualization, this study uses the data of 84 prefecture-level cities and municipalities directly under the central government in eastern China from 2011 to 2017 to test the research hypotheses from a quantitative perspective. Specifically, this study analyzes the correlation between Land_EcoE and environmental pollution by constructing a panel regression model. The conclusions show that, in general, the increase in Land_EcoE in eastern China is associated with the increase in carbon emissions. For a group of prefecture-level cities with the most developed economies in eastern China, the increase in Land_EcoE is correlated with the decrease in carbon emissions. Based on this research, this study proposes a series of policy implications on how to promote simultaneous economic–land–environmental benefits.

Sign in / Sign up

Export Citation Format

Share Document