Mitigating Spatial Conflict of Land Use for Sustainable Wetlands Landscape in Li-Xia-River Region of Central Jiangsu, China

Li-Xia-river Wetlands make up the biggest freshwater marsh in East China. Over the last decades, social and economic developments have dramatically altered the natural wetlands landscape. Mitigating land use conflict is beneficial to protect wetlands, maintain ecosystem services, and coordinate local socioeconomic development. This study employed multi-source data and GIS-based approaches to construct a composite index model with the purpose of quantitatively evaluating the intensity of land use conflict in Li-Xia-river Wetlands from 1978 to 2018. The results showed that the percentage of the wetlands’ area declined from 20.3% to 15.6%, with an overall reduction rate of 23.2%. The mean index of land use conflict increased from 0.15 to 0.35, which suggests that the conflict intensity changed from “no conflict” to “mild conflict.” The number of severe conflict units increased by about 25 times. A conspicuous spatial variation of land use conflict was observed across different periods, although taking land for agricultural activities was the overriding reason for wetlands reduction. However, in recent years, urban sprawl has posed the greatest threat to Li-Xia-river Wetlands. Coordinating land use conflict and formulating a practical strategy are the initial imperative steps to mitigate the threat to wetlands.

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Measurement and prediction of land use conflict in an opencast mining area

Resources Policy ◽

10.1016/j.resourpol.2021.101999 ◽

2021 ◽

Vol 71 ◽

pp. 101999

Author(s):

Yuan Gao ◽

Jinman Wang ◽

Min Zhang ◽

Sijia Li

Keyword(s):

Land Use ◽

Mining Area ◽

Opencast Mining ◽

Land Use Conflict

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Spatial Differentiation of Cultivated Land Use Intensification in Village Settings: A Survey of Typical Chinese Villages

Land ◽

10.3390/land10030249 ◽

2021 ◽

Vol 10 (3) ◽

pp. 249

Author(s):

Quanfeng Li ◽

Zhe Dong ◽

Guoming Du ◽

Aizheng Yang

Keyword(s):

Land Use ◽

Food Security ◽

Socioeconomic Development ◽

Agricultural Land ◽

Spatial Differentiation ◽

Cultivated Land ◽

Output State ◽

Land Use Intensification ◽

Development Levels ◽

Business Entities

The intensified use of cultivated land is essential for optimizing crop planting practices and protecting food security. This study employed a telecoupling framework to evaluate the cultivated land use intensification rates in typical Chinese villages (village cultivated land use intensifications—VCLUIs). The pressure–state–response (PSR) model organizes the VCLUI indexes including the intensity press, output state, and structural response of cultivated land use. Empirical analysis conducted in Baiquan County, China, indicating that the cultivated land use intensification levels of the whole county were low. However, the intensifications of villages influenced by physical and geographic locations and socioeconomic development levels varied significantly. This paper also found that variations in the VCLUIs were mainly dependent on new labor-driven social subsystem differences. Thus, the expanding per capita farmland scales and increasing numbers of new agricultural business entities were critical in improving the VCLUI. Overall, the theoretical framework proposed in this study was demonstrated to be effective in analyzing interactions among the natural, social, and economic subsystems of the VCLUI. The findings obtained in this study potentially have important implications for future regional food security, natural stability, and agricultural land use sustainability.

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Effects of Contemporary Land Use Types and Conversions from Wetland to Paddy Field or Dry Land on Soil Organic Carbon Fractions

Sustainability ◽

10.3390/su12052094 ◽

2020 ◽

Vol 12 (5) ◽

pp. 2094

Author(s):

Di Zhao ◽

Junyu Dong ◽

Shuping Ji ◽

Miansong Huang ◽

Quan Quan ◽

...

Keyword(s):

Land Use ◽

Organic Carbon ◽

Soil Organic Carbon ◽

Constructed Wetland ◽

Paddy Field ◽

Heavy Fraction ◽

Light Fraction ◽

Paddy Fields ◽

Dry Land ◽

Natural Wetlands

Soil organic carbon (SOC) concentration is closely related to soil quality and climate change. The objectives of this study were to estimate the effects of contemporary land use on SOC concentrations at 0–20 cm depths, and to investigate the dynamics of SOC in paddy-field soil and dry-land soil after their conversion from natural wetlands (20 and 30 years ago). We investigated the dissolved organic carbon (DOC), light fraction organic carbon (LFOC), heavy fraction organic carbon (HFOC), and other soil properties (i.e., moisture content, bulk density, pH, clay, sand, silt, available phosphorous, light fraction nitrogen, and heavy fraction nitrogen) in natural wetlands, constructed wetlands, fishponds, paddy fields, and soybean fields. The results indicated that the content of DOC increased 17% in constructed wetland and decreased 39% in fishponds, and the content of HFOC in constructed wetland and fishponds increased 50% and 8%, respectively, compared with that in natural wetlands at 0–20 cm. After the conversion of a wetland, the content of HFOC increased 72% in the paddy fields and decreased 62% in the dry land, while the content of DOC and LFOC decreased in both types. In the paddy fields, LFOC and HFOC content in the topmost 0.2 m of the soil layer was significantly higher compared to the layer below (from 0.2 to 0.6 m), and there were no significant differences observed in the dry land. The findings suggest that the paddy fields can sequester organic carbon through the accumulation of HFOC. However, the HFOC content decreased 22% after 10 years of cultivation with the decrease of clay content, indicating that paddy fields need to favor clay accumulation for the purpose of enhancing carbon sequestration in the paddy fields.

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Spatial-temporal pattern of land use conflict in China and its multilevel driving mechanisms

The Science of The Total Environment ◽

10.1016/j.scitotenv.2021.149697 ◽

2021 ◽

Vol 801 ◽

pp. 149697 ◽

Cited By ~ 2

Author(s):

Song Jiang ◽

Jijun Meng ◽

Likai Zhu ◽

Haoran Cheng

Keyword(s):

Land Use ◽

Temporal Pattern ◽

Land Use Conflict ◽

Driving Mechanisms

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Smart Land-Use Analysis: The LUCIS Model: Land-Use Conflict Identification Strategy

Journal of the American Planning Association ◽

10.1080/01944360802540125 ◽

2008 ◽

Vol 75 (1) ◽

pp. 89-89 ◽

Cited By ~ 2

Author(s):

David Hart

Keyword(s):

Land Use ◽

Land Use Conflict ◽

Conflict Identification ◽

Identification Strategy

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Modeling Bioenergy and Land Use Conflict

Agent-Based Modeling of Environmental Conflict and Cooperation ◽

10.1201/9781351106252-13 ◽

2018 ◽

pp. 279-320

Author(s):

Todd K. BenDor ◽

Jürgen Scheffran

Keyword(s):

Land Use ◽

Land Use Conflict

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Identificación de conflictos de uso de suelo para la planificación del crecimiento urbano: ciudad Cuauhtémoc, Chihuahua (México)

Cuadernos de Investigación Geográfica ◽

10.18172/cig.3425 ◽

2019 ◽

Vol 45 (2) ◽

pp. 709

Author(s):

J.D. Maldonado-Marín ◽

L.C. Alatorre-Cejudo ◽

E. Sánchez-Flores

Keyword(s):

Land Use ◽

Development Planning ◽

Urban Land ◽

Urban Land Use ◽

Land Uses ◽

Land Use Conflict ◽

The Status ◽

Resolution Model ◽

Urban Planning And Development ◽

Land Use Policies

This research incorporates new forms of analysis for urban planning and development in Ciudad Cuauhtémoc, Chihuahua (Mexico), providing elements of reference by identifying areas with potentiality and limitations for urban land use, as well as for agricultural and conservation activities. The general objective was to identify the main conflicts between land uses and coverages to determine the areas of greatest territorial suitability for the city's growth. For this purpose, the Land Use Conflict Identification Strategy (LUCIS) model was used to understand the spatial significance of the status of land use policies, including likely urban patterns associated with agricultural and conservation trends. In the case study, a total of 149,139 inhabitants are estimated for the year 2030, which represents the need for an additional 392.42 hectares to accommodate the population growth. For that of the 16,272.21 hectares that has the population limit, 38 % were allocated to the category of agriculture, 11.95% to conservation soils and 49.67% to urban land (including the existing urban area). There is a significant portion of the area that is in conflict between the different land uses. It concludes, that the integration of a conflict resolution model for land use and land cover represents a practical solution that contributes to the improvement of processes of urban development planning.

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