Spatial-temporal characteristics of cultivated land use eco-efficiency under carbon constraints and its relationship with landscape pattern dynamics

Wei, Cao; Zhou, Wen; Wu, Tao; Wang, Xiaochun; Jin-hai, XU

doi:10.1016/j.ecolind.2022.109140

Cited by 34 publications

(19 citation statements)

References 58 publications

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“…Due to the uncertainty of accounting coe cients, consumption cycles, and consumption ratios, this part of carbon emissions cannot be accounted for temporarily. Wu et al (2022) explored the coupling coordination degree between net carbon sink and agricultural output value in terms of the relationship between the carbon effect and grain yield. They found that the relationship between the economy and ecology of cultivated land use has changed from overall imbalance to preliminary balance, with a certain gap between the realization of overall coordination and growth coupling.…”

Section: Discussionmentioning

confidence: 99%

“…According to Wu (2022), this study rede nes the coupling index of net carbon sink of cultivated land use and grain yield based on the original Tapio decoupling index, and the calculation formula is as follows:…”

Section: Improved Coupling Index Based On Tapio Decoupling Modelmentioning

confidence: 99%

“…In addition, the carbon sequestration function of cultivated land soils and covers makes cultivated land use activities have dual effects of carbon emission and carbon absorption (Aertsens et al, 2013;Okolo et al, 2020;SMITH et al, 1997;West et al, 2010). Studies regarded the carbon content of the annual net biomass of crops as the carbon sequestration of cultivated land use (L. , and have used the unit area method (Yin et al, 2016), the mass balance equation , and the net primary productivity of crops (Cao et al, 2022;Yang and Chen, 2016) to measure it. Among them, the net crop productivity method has been popularly applied to the study of regional crop carbon sink accounting, taking into account convenience and accuracy.…”

Section: Introductionmentioning

confidence: 99%

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Research on the Spatial-Temporal Coupling Characteristics between China's Net Carbon Sink of Cultivated Land Use and Grain Yield

Wang

Zhang

Yao

2023

Preprint

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In order to alleviate the increasingly severe climate warming problem, countries are actively promoting low-carbon economic transformation. Cultivated land use activities have dual effects of carbon emission and carbon absorption. An in-depth analysis of China’s net carbon source/sink of cultivated land use and its relationship with grain yield can provide decision-making references for ensuring food security and achieving China's "30.60 dual carbon" goal. Taking China's 31 provinces as the research unit, the net carbon sink of cultivated land use between 1991 and 2021 was calculated, the driving factors of carbon emission from cultivated land use were analyzed, the spatial-temporal characteristics of carbon emission and net carbon sink were pictured, and the improved Tapio coupling index was used to explore the relationship between the net carbon sink of cultivated land use and grain yield. The results showed that: (1) The carbon emission of cultivated land use showed an upward first and then downward trend, reaching a peak of 81.0579 million tons in 2015. Among the factors influencing carbon emissions of cultivated land use, the efficiency and economic factors have the most significant positive and negative effects on the carbon emission reduction of cultivated land use, respectively. (2) In the past 31 years, the net carbon sink of cultivated land use has increased from 404.595 million tons to 666.848 million tons, and China's cultivated land use system has always been in a state of carbon sinks. (3) At the national level, the net carbon sink of cultivated land use and grain yield are growth coupling or yield-dominant coupling in most years. The types of coupling at the regional level are varied but still dominated by growth coupling. Typically, provinces have a balanced relationship between the increased net carbon sink of cultivated land use and the increase in grain yield. Accordingly, the transformation of cultivated land use should be accelerated, the industrial structure of the plantation industry should be optimized, reasonable cultivated land protection policies should be formulated, and the reduction of carbon sources and increase of carbon sinks in large emitting provinces should be promoted by classification and batch.

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Section: Discussionmentioning

confidence: 99%

Section: Improved Coupling Index Based On Tapio Decoupling Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Research on the Spatial-Temporal Coupling Characteristics between China's Net Carbon Sink of Cultivated Land Use and Grain Yield

Wang

Zhang

Yao

2023

Preprint

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“…Scholars have conducted preliminary explorations on the carbon emission effects brought about by the marketization of land transfer (Zhang and Xu, 2017;Cao et al, 2022). These studies are mainly based on multidimensional theoretical perspectives such as overall land use planning, land supply, land transfer intervention, land use structure and intensity, and land intensification or expansion (Houghton et al, 2012;Chen et al, 2014;Chen et al, 2019;Fei et al, 2021;Gong et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

Analysis of the coupling characteristics of land transfer and carbon emissions and its influencing factors: A case study of China

Zhang

Tong

et al. 2023

Front. Environ. Sci.

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The rapid and disorderly expansion of urban construction land has exacerbated the contradiction between land use and low-carbon development. In this paper, we use the spatial autocorrelation model and coupling model to analyze the spatial characteristics of the coupled coordination degree of land transfer and carbon emissions in 291 cities in China. The multi-scale geographically weighted regression (MGWR) model is used to explore the spatial heterogeneity of the influence of socioeconomic factors on their coupled coordination degree. The results show that: from 2005 to 2015, the scale of land transfer and carbon emissions has been increasing quantitatively and spatially showing a shift from the southeast coast to the central and western regions. In 2005, 2010, and 2015, the global Moran’s I of the coupled coordination degree are .3045, .3725, and .3388, respectively, indicating that the coupled coordination degree between land transfer and carbon emissions has a significant positive spatial autocorrelation. The MGWR model indicates that the influence of socioeconomic factors on the coupling coordination degree has significant spatial heterogeneity at different time nodes. In 2005 and 2015, the coefficients of the NGR on the coupling coordination of land transfer and carbon emissions have obvious stratification characteristics, with the coefficients decreasing from northeast to southwest. In 2010, the high coefficient (.924∼.989) of GPC is mainly distributed in the central region. The coefficient of the PD ranges from .464 to .918, but the difference of influence degree between the southeast coast and the northwest is obvious. This study may provide new clues for sustainable urban development and carbon reduction.

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“…Some characterized the spatiotemporal variation and explored the optimization of cropland patterns, which is the premise of sustainable societal development [27]. In recent years, several studies have focused on mapping cropping intensity [28], quality patterns of cropland [29] by integrating multiple data sources, and cropland use efficiency while minimizing the associated environmental impacts [4,30]. Regarding the distribution of sloping cropland, studies have focused more on the evaluation of the cultivated layer's soil quality [31], soil and water dynamics [32,33] and soil loss in sloping farmland [12,34,35], ignoring the characteristics of farmland on a vertical-gradient terrain.…”

Section: Introductionmentioning

confidence: 99%

Prediction of Spatiotemporal Changes in Sloping Cropland in the Middle Reaches of the Yangtze River Region under Different Scenarios

Yao

Luo

et al. 2022

IJERPH

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With the rapid urban expansion and extensive occupation of cropland, sloping cropland has become an important cropland resource across China. How sloping cropland will change under different socioeconomic scenarios is poorly understood. Therefore, we modeled land-cover change using SSP-RCP multi-scenario simulations and analyzed the evolution and driving factors of sloping cropland change in the middle reaches of the Yangtze River Region (MRYRR). The results indicate the following: In the past twenty years, the cropland and sloping cropland areas in this region declined but the proportion of sloping cropland in total area has been increasing. The average slope of sloping cropland has increased from 7.95° to 8.28°. By 2035, the sloping cropland and total cropland areas will continue to decrease according to the current trend (SSP2-4.5). The average slope will increase maximally to 8.63° under the SSP4-3.4 scenario and minimally to 8.45° under the SSP4-6.0 scenario. Under SSP4-3.4, the extent of slope increase will exceed that in 2005–2010, when regional cropland slope showed the strongest increase in the past. Among 14 social, economic, and ecological factors, average annual precipitation and GDP contributed the most to the change in sloping cropland. This study provides support for decision-making in sustainable land resource allocation to balance urban expansion and cropland conservation.

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Spatial-temporal characteristics of cultivated land use eco-efficiency under carbon constraints and its relationship with landscape pattern dynamics

Cited by 34 publications

References 58 publications

Research on the Spatial-Temporal Coupling Characteristics between China's Net Carbon Sink of Cultivated Land Use and Grain Yield

Research on the Spatial-Temporal Coupling Characteristics between China's Net Carbon Sink of Cultivated Land Use and Grain Yield

Analysis of the coupling characteristics of land transfer and carbon emissions and its influencing factors: A case study of China

Prediction of Spatiotemporal Changes in Sloping Cropland in the Middle Reaches of the Yangtze River Region under Different Scenarios

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