Cultivated Land Change, Driving Forces and Its Impact on Landscape Pattern Changes in the Dongting Lake Basin

Li, Junhan; Zhou, Kaichun; Dong, Honggang; Xie, Binggeng

doi:10.3390/ijerph17217988

Cited by 30 publications

(14 citation statements)

References 65 publications

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“…In typical agricultural planting areas, the various functions of the cultivated land system are fundamentally coordinated. Under the influence of high-intensity cultivated land use, this region faces issues such as sluggish growth of the economic contribution function, declining social security function, overall ecological adjustment, and weakening of the landscape carrying function [ 90 ]. In the future, this sub-region must improve agricultural production conditions, enhance cultivated land quality and soil fertility, increase investment in agricultural science and technology, develop distinctive agriculture, ensure the production efficiency of superior varieties, and pursue product benefits [ 91 ].…”

Section: Discussionmentioning

confidence: 99%

The Spatiotemporal Evolution Characteristics of Cultivated Land Multifunction and Its Trade-Off/Synergy Relationship in the Two Lake Plains

Xiao

Yong

et al. 2022

IJERPH

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The material foundation of sustainable agricultural development is cultivated land resources, and their sustainable use is critical to fostering agricultural sustainability and guaranteeing national food security. In this paper, the multifunctional evaluation framework of the cultivated land system based on the “GESEL” model at the grid scale (5 km × 5 km) is constructed to explore the spatiotemporal evolution characteristics of a multifunctional cultivated land system in two lake plains and the trade-off and synergy between the functions. The five functions are all unstable in time scales, and their spatial distribution characteristics are also different. The trade-off and synergy between the multiple functions of the cultivated land system in the two lake plains from 2000 to 2019 showed significant spatial heterogeneity. Most of the functions were mainly collaborative, and a few were trade-offs. The two lake plains can be divided into four multi-functional cultivated land zones: a grain production leading zone, a distinctive agricultural planting zone, a high-efficiency agricultural development zone, and an ecological agricultural construction zone. This research puts forward some countermeasures and suggestions to promote the sustainable utilization of cultivated land resources.

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Section: Discussionmentioning

confidence: 99%

The Spatiotemporal Evolution Characteristics of Cultivated Land Multifunction and Its Trade-Off/Synergy Relationship in the Two Lake Plains

Xiao

Yong

et al. 2022

IJERPH

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“…The SHAPE_MN is an indication of the complexity of the tidal flat landscape. Because they express the influence of human activities on a landscape pattern, the FRAC_AM values of natural landscapes with less interference are higher than the values for disturbed landscapes (Li et al, 2020a). COHESION refers to the connectivity between tidal flats within a YRD, while SPLIT represents the degree of separation.…”

Section: Landscape Index Calculationmentioning

confidence: 99%

Spatiotemporal variations of tidal flat landscape patterns and driving forces in the Yangtze River Delta, China

et al. 2023

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As a crucial coastal wetland habitat in the transition zone between land and sea, global tidal flats have severely declined by 16% over the last two decades under the dual threats of intense human activities and climate change. The Yangtze River Delta of China, the largest estuary in the western Pacific Ocean, has abundant mudflat resources and a dense human population. It also has some of the most prominent conflicts between economic development and ecological conservation. The current lack of understanding of landscape patterns and influencing factors of the Yangtze River Delta mudflats has severely hampered the region’s ecological conservation and restoration efforts. Based on Landsat time-series images, this study generated a 30-m spatial resolution map of mudflats in the Yangtze River Delta, which shrank by 47% during 1990–2020, with a higher density of mudflat loss in Yancheng and Nantong cities of the Jiangsu province and Hangzhou, Shaoxing, and Ningbo cities of the Zhejiang province. Landscape indices, such as the patch density of tidal flats, have gradually changed since 2000, with most of them showing significant changes in 2010. Mudflats in Lianyungang, northwestern Yancheng, Nanhui, Jiaxing, and Hangzhou showed sharp negative changes in landscape characteristics. Natural and anthropogenic factors had synergistic effects on the above changes in mudflat landscape patterns in the Yangtze River Delta. Mudflat landscape features were mainly influenced by population growth, economic development, reclamation, sediment discharge, and air temperature. Based on the evolving characteristics of mudflat landscape patterns, we recommend improving mudflat landscape management and planning by strengthening mudflat policies, laws, and regulations, developing countermeasures against threats from major stressors, and enhancing the effectiveness of nature reserves for mudflat protection.

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“…In each gird, the hydrological components were obtained by averaging the results of hydrodynamic model, and the landscape pattern indices (J. Li et al, 2020) the landscape level by the Fragstats 4.2 (Ma et al, 2019). Then, the explanatory power of hydrological components to landscape pattern indices could be calculated.…”

Section: Model Configurationsmentioning

confidence: 99%

Impact of Short‐Term Hydrological Components on Landscape Pattern of Waterbird Habitat in Floodplain Wetlands

Yao

Chen

et al. 2022

Water Resources Research

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Periodic flooding in floodplain wetlands dominates the landscape pattern, creating rich and diverse habitats for waterbirds. However, most studies on floodplain wetland landscape are conducted at interannual scale, while few researches investigate the effect of short‐term changes of hydrological components, such as maximum continuous flooding day, average flooding depth, maximum continuous drought day, and distance from water body. This study developed an effective approach by integrating a two‐dimensional hydrodynamic model and a geographic detector model to investigate the single and interactive effects of short‐term hydrological components on the landscape pattern of waterbird habitat in floodplain wetlands. The developed approach was demonstrated in the Poyang Lake in Jiangxi province of China, an important conservation floodplain wetland in the Ramsar Convention. We found the short‐term hydrological components could impose a significant impact on the landscape pattern of waterbird habitat. Particularly, the interactive effects of multiple hydrological components were stronger than that of a single component, showing nonlinear enhancement. The developed approach could provide a viable way to study the ecological impacts of short‐term hydrological components on the landscape pattern of waterbird habitat in floodplain wetlands, thus offer scientific references for waterbird habitat management in floodplain wetlands.

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Cultivated Land Change, Driving Forces and Its Impact on Landscape Pattern Changes in the Dongting Lake Basin

Cited by 30 publications

References 65 publications

The Spatiotemporal Evolution Characteristics of Cultivated Land Multifunction and Its Trade-Off/Synergy Relationship in the Two Lake Plains

The Spatiotemporal Evolution Characteristics of Cultivated Land Multifunction and Its Trade-Off/Synergy Relationship in the Two Lake Plains

Spatiotemporal variations of tidal flat landscape patterns and driving forces in the Yangtze River Delta, China

Impact of Short‐Term Hydrological Components on Landscape Pattern of Waterbird Habitat in Floodplain Wetlands

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