Carbon emissions from land-use change and management in China between 1990 and 2010

Li, Lai; Huang, Xianjin; Yang, Hong; Chuai, Xiaowei; Zhang, Mei; Zhong, Taiyang; Chen, Zhigang; Chen, Yi; Wang, Xiao; Thompson, J. R.

doi:10.1126/sciadv.1601063

Cited by 406 publications

(224 citation statements)

References 56 publications

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“…Chinese government executed stricter energy policies in the Tenth Five-Year Plan Period (2000e2005) by adjusting the energy and industrial structures (Yuan & Zuo, 2011). Land use change, particular farmland converted to settlement and industry parks, also change the carbon emission in the YRD (Lai et al, 2016;Zhang et al, 2015). With the effective measures, carbon intensity presented a downward trend during 2000e2002 and 2004e2010 (Fig.…”

Section: Discussionmentioning

confidence: 99%

Convergence of carbon intensity in the Yangtze River Delta, China

Huang

Yang

et al. 2017

Habitat International

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a b s t r a c tAs China's industrialization and urbanization have grown rapidly in recent years, China's CO 2 emissions rose from 3405.1799 Mt to 10,249.4630 Mt from 2000 to 2013, and it has reached the highest levels in the word since 2006. Chinese government has emphasized the importance of reducing carbon emissions and set the target of reducing carbon intensity to 60e65% of 2005 levels by 2030. Investigating the convergence of carbon intensity can identify the convergence rate, which is helpful in guiding allocations of carbon intensity reduction. The Yangtze River Delta is one of the key carbon emission regions in China, with higher urbanization levels and larger carbon emissions; thus, we employed prefecture-level panel data derived from grid data between 2000 and 2010 to examine whether the convergence of carbon intensity exists across prefecture-level cities in the Yangtze River Delta. Spatial panel data models were utilized to investigate b-convergence of carbon intensity. The results indicated that carbon intensity showed divergence during 2002e2004 and s-convergence over other periods (2000e2002 and 2004 e2010). Carbon intensity exhibited stochastic convergence, indicating that the shocks to carbon intensity relative to the average level of carbon intensity are only transitory. There was a spatial spillover effect and b-convergence of carbon intensity, suggesting that prefecture-level cities with higher carbon intensity would decrease rapidly in the Yangtze River Delta. Our results highlight the importance of considering the present state of carbon intensity, spatial factors, and socioeconomic factors such as industrial structure and economic levels during allocation planning for reducing carbon intensity.

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Section: Discussionmentioning

confidence: 99%

Convergence of carbon intensity in the Yangtze River Delta, China

Huang

Yang

et al. 2017

Habitat International

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“…In addition, the regression analyses show a significant relationship between GDP per capita and the cost per sown area (ρ = 0.84, p < 0.01). In the more developed areas with higher GDP per capita, for example, the eastern coastal area in China, land resources are expansive due to the wide use of land for industry, business, and urban and settlement development [57,58]. In the meantime, the costs of farmland in these areas are much higher than in less developed areas with lower GDP per capita in western China.…”

Section: Spatial Variation Of Amounts and Growth Ratesmentioning

confidence: 99%

Spatio-Temporal Variations of Health Costs Caused by Chemical Fertilizer Utilization in China from 1990 to 2012

Yang

Shen

et al. 2017

Sustainability

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Abstract:The health impacts caused by chemical fertilizer utilization have challenged long-term sustainable development in many countries, particularly developing countries. Based on the emergy analysis method, we estimated the temporal and spatial variations of the health costs, through atmospheric, water, and soil pathways, of chemical fertilizer utilization in China during the period from 1990 to 2012. The results showed an obvious increasing trend of health costs from 1.8 billion Yuan in 1990 to 23.0 billion Yuan in 2012, while the ratio of health costs to agriculture output value declined slowly and became stable in recent years. Regional differences were remarkable and were significantly correlated to the levels of economic development (r = 0.843 and p < 0.001) and crop-sown area in the region (r = 0.588 and p < 0.001). Economically developed regions, especially the eastern coastal provinces, had much higher costs than the western regions. Meanwhile, fertilizer consumption shifted from the eastern to the northwest region, which was the same as the health costs. This study provides a reference to estimate the health costs of fertilizer utilization, and the results highlight the importance of sustainable development in China.

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“…With rapid population growth and economic development, greater demands for agricultural products (i.e., food and bioenergy) have resulted in the expansion of agricultural land areas and enhancement of the degree of agricultural intensification (Alexander et al, 2015;Chou, Dong, Wang, & Fu, 2015;Lai et al, 2016;Piquer-Rodríguez et al, 2018;Vasenev & Kuzyakov, 2018). Compared with agricultural expansion, agricultural intensification plays a major role in meeting the growing demands for agricultural products (Johnson, Runge, Senauer, Foley, & Polasky, 2014).…”

Section: Introductionmentioning

confidence: 99%

Effects of agricultural land use change on organic carbon and its labile fractions in the soil profile in an urban agricultural area

Luo

Shen

et al. 2019

Land Degrad Dev

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The properties of soil organic carbon (SOC) required for carbon sequestration and nutrient availability are contradictory, and the changes in SOC caused by agricultural land use changes remain elusive. Data on the total soil organic carbon (TOC) and labile organic carbon, including easily oxidizable organic carbon (EOC), dissolved organic carbon (DOC), and microbial biomass carbon (MBC), of the soil profile were analysed for four typical agricultural land use scenarios in the Chengdu Plain, China. The impacts of agricultural land use changes on sequestration and nutrient availability of SOC were assessed in this urban agricultural area using the space‐for‐time substitution method. Conversion of land use from a traditional agricultural rotation (rice‐wheat/rapeseed rotation) to afforestation increased the MBC content and decreased the contents of EOC, DOC, and TOC due to the lower input of organic matter, improved aeration of the soil profile, and growth of aboveground biomass. Conversion of a traditional rotation to a rice–garlic rotation resulted in a significant increase in topsoil TOC, slight but insignificant decreases in subsoil TOC, and clear increases in labile organic carbon because of rice planting, rice straw mulch, and reasonable application of chemical fertilizers. In contrast, the conversion of a traditional rotation to a rice–leafy vegetable rotation decreased MBC due to the excessive use of chemical fertilizers that consequently increased EOC, DOC, and TOC. We conclude that afforestation on paddy soil has negative consequences for soil carbon sequestration and a rice–leafy vegetable rotation contributes to carbon sequestration but is detrimental to soil fertility. In addition, the MBC ratio in soil could be the optimal indicator for assessing SOC stability and soil fertility, and more attention should be paid to subsoil carbon changes.

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Carbon emissions from land-use change and management in China between 1990 and 2010

Abstract: Overall land-use change and management have contributed about 1.45 Pg of carbon to the total carbon released in China from 1990 to 2010.

Cited by 406 publications

References 56 publications

Convergence of carbon intensity in the Yangtze River Delta, China

Convergence of carbon intensity in the Yangtze River Delta, China

Spatio-Temporal Variations of Health Costs Caused by Chemical Fertilizer Utilization in China from 1990 to 2012

Effects of agricultural land use change on organic carbon and its labile fractions in the soil profile in an urban agricultural area

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