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.

scholarly journals Evaluation of Cultivated Land Use Efficiency with Environmental Constraints in the Dongting Lake Eco-Economic Zone of Hunan Province, China

Land ◽  
2020 ◽  
Vol 9 (11) ◽  
pp. 440
Author(s):  
Ying Chen ◽  
Suran Li ◽  
Long Cheng
Keyword(s):  
Land Use ◽  
Industrial Development ◽  
Dongting Lake ◽  
Hunan Province ◽  
Environmental Constraints ◽  
Cultivated Land ◽  
Irreversible Damage ◽  
Land Use Efficiency ◽  
Use Efficiency ◽  
Economic Zone

The rapid urban and industrial development in China has put pressure on the limited cultivated land resources. In ecologically fragile areas, such as the Dongting Lake Eco-economic Zone, land pollution and waste emissions from agricultural production cause irreversible damage to cultivated land. Thus, a method to assess the sustainability of cultivated land use efficiency (CLUE) is explored. Using the panel data of 25 districts in the province from 2007 to 2017, this study incorporates agricultural non-point source pollution and carbon emissions into undesirable outputs of cultivated land. The SBM(Slack-based Measure)-undesirable model was applied to measure the spatiotemporal characteristics of CLUE under environmental constraints. This study finds that CLUE with environmental constraints is significantly lower than CLUE without environmental constraints, and the degree of the impacts of the constraints differs among regions. Second, from 2007 to 2017, the average CLUE of the province showed a downward trend in each year; this is due to the side effects of redundant inputs and undesired outputs. Third, in 2017, the CLUE of the Dongting Lake Eco-economic Zone was high in the west and low in the east, and the redundant inputs of CLUE were livestock, fertilizer, and pesticide. The study concludes by recommending some policies.

scholarly journals The Study on Effects of Concurrent Business on Cultivated Land Use Efficiency -Based on Empirical Analysis of Gansu and Qinghai Province

2012 ◽  
Vol 1 (2) ◽  
pp. 7 ◽  
Author(s):  
Jian Qiang Li ◽  
Lu Jia Yang ◽  
Tao Zhu ◽  
Jie Fu
Keyword(s):  
Land Use ◽  
Analytical Framework ◽  
Cultivated Land ◽  
Qinghai Province ◽  
Land Use Efficiency ◽  
Different Types ◽  
Utilization Patterns ◽  
Use Efficiency ◽  
The Difference ◽  
Use Behavior

<p>This paper uses the farmer household’s model to structure the analytical framework of concurrent business cultivated land use behavior and its efficiency and then uses group comparison analysis and data envelopment analysis (DEA) to analyze the diversity of cultivated land use behavior and efficiency, among different types of concurrent business farmer which is based on the promise of separation not established and investigation data of farmer household. The results demonstrate that the concurrent business types have a significant influence on utilization patterns and farmer household’s behavioral options, different types of farmers’ investment, management and land scale have a big difference. Generally speaking, capital and labor input of concurrent business farmer household are high than that of specialized farmer, concurrent business farmer household Class ? are higher than that of Class ?; and different utilization patterns lead to the difference of cultivated land use efficiency. Moreover, technical efficiency of specialized farmer household is higher than that of concurrent business farmer household Class ? based on the separation was not established, and both of them are higher than that of concurrent business farmer household Class ?. That illustrates land use efficiency of farmer household will reduce as the level of concurrent business increase.</p>

scholarly journals Land-Use Change and Efficiency in Laos’ Special Economic Zones

Land ◽  
2021 ◽  
Vol 10 (10) ◽  
pp. 1012
Author(s):  
Dongxue Li ◽  
Xingping Wang
Keyword(s):  
Land Use ◽  
Information Entropy ◽  
Structural Evolution ◽  
Gray Relational Analysis ◽  
Land Use Intensity ◽  
Special Economic Zones ◽  
Land Use Efficiency ◽  
Medium Intensity ◽  
Use Efficiency ◽  
Economic Zones

Special economic zones (SEZs) are important in Laos due to their ability to attract foreign investment, realize industrialization, and promote economic globalization. Based on Laos’ SEZs in operation, this study explored land-use intensity, structural evolution and land-use efficiency in Laos’ SEZs via the land-use dynamic degree, information entropy, super-efficiency data envelopment analysis (DEA) and gray relational analysis (GRA). The study determined that the total land-use area in Laos’ SEZs continuously increased from 2014 to 2020. The land-use intensity changes in the SEZs can be divided into three types, i.e., high intensity, medium intensity and low intensity, and most SEZs belonged to the medium-intensity type. The proportion of land used in production systems in Laos’ SEZs increased the most, and the proportion of infrastructure land notably decreased. The overall information entropy of the land-use structure exhibited an initial downward and then an upward trend. In 2018, the land-use efficiency in the Savan-Seno SEZ, Vientiane Industrial and Trade Area, Dongphosy SEZ, and Golden Triangle SEZ was relatively optimal. The basic factors of the industrial space and the factors reflecting international cooperation attributes were highly related to the land-use efficiency in Laos’ SEZs.

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