Pollution Risk Assessment and Sources Analysis of Heavy Metal in Soil from Bamboo Shoots

Wang, Zhihong; Chen, Yingle; Wang, Song; Yu, Yujuan; Huang, Wenyan; Xu, Qiao-Lin; Zeng, Lingyu

doi:10.3390/ijerph192214806

Cited by 4 publications

(2 citation statements)

References 66 publications

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“…Therefore, arable land cannot be used to grow energy crops for liquid-fuel production, resulting in an insufficient and unstable supply of energy crops. Our research group has proposed the importance of evaluating the changes in land utilization by biomass fuel production in China [19]. Under this circumstance, how to solve the dilemma of competing with people for grain and with grain for arable land to produce liquid fuel will be the main direction to promote the development of biomass energy sources.…”

Section: Introductionmentioning

confidence: 99%

Exploring the potential of growing energy crops and then producing liquid fuels in marginal land: A China scenario

Li,

Liu,

Wang

et al. 2023

Preprint

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To explore the potential of growing energy crops and then producing liquid fuels in marginal land in China, in this paper, the status quo of existing biomass resources and marginal land utilization in China have been first analyzed and the development process of biomass liquid fuels has then been reviewed. Through the investigation, we have found that alternative fuels such as bio-diesel, bio-based alcohols, ethers, and esters will be the current and future research focuses. Secondly, using ethyl levulinate (EL) as our research subject, we have explored the production capacity of growing energy crops in marginal land and their potential to prepare liquid fuels. Then, the carbon sequestration of energy crops, the carbon emissions of liquid fuels, and the influence of liquid fuels on land use changes have been deeply analyzed. This study has revealed that the potential of sweet sorghum, cassava, jatropha curcas, and switchgrass cultivation in China in producing is 75.76 million tonnes, 1.52 million tonnes, 4.57 million tonnes, and 5.16 million tonnes, respectively. Among these crops, sweet sorghum and switchgrass have a higher production capacity and are more suitable to be planted on marginal land and used to produce liquid fuels. The planting of these two crops has absorbed about a 111.11million tonnes and 7.57 million tonnes of carbon dioxide (CO2), respectively, presenting significant carbon sequestration and oxygen-producing effects. Finally, the problems in developing marginal land have been summarized. Furthermore, we have proposed policy recommendations for marginal land development, energy crop cultivation, and liquid fuel development suitable for Chinese conditions, hoping to provide essential data for China's land restoration and biomass liquid fuel development.

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Section: Introductionmentioning

confidence: 99%

Exploring the potential of growing energy crops and then producing liquid fuels in marginal land: A China scenario

Li,

Liu,

Wang

et al. 2023

Preprint

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“…HMs in soil originate from natural lithospheric weathering and human activities [11,12] and can be detected using soil profile differentiation [13,14]. Meanwhile, the positive matrix factorization model (PMF), pollution indices (P i ), edge analysis, geoaccumulation indices (I geo ), enrichment factors (EF), and GeogDetector model [15][16][17][18], and chemical mass balance are commonly employed to quantify the sources, contributions, and pollution status of HM pollutants [19,20]. Taken together, these methods can provide a more accurate analysis of pollution characteristics and source identification associated with HMs.…”

Section: Introductionmentioning

confidence: 99%

Bioaccumulation and Potential Risk Assessment of Heavy Metals in Tropical Bamboo Plantations of Dendrocalamus brandisii under Two Cultivation Patterns in Yunnan, China

Cheng,

Dou,

Bao

et al. 2023

Forests

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Heavy metal (HM) pollution nowadays is a hot issue concerning global ecological and food safety. As one of the most important woody bamboos for edible shoots in Southeast Asia and southwest China, Dendrocalamus brandisii usually occurs in red soil with a high HM geological background. However, the bioaccumulation process and possible risks of HMs in their cultivation area remain unclear. In this study, a comprehensive risk assessment of HM pollution was conducted in the main cultivation area of D. brandisii under two cultivation patterns in Yunnan, China. The results revealed that moderate to heavy HM pollution existed in the soil of the study area, while bamboo shoots displayed either no pollution or weak contamination. The “large-area intensive afforestation” cultivation pattern can better control HM pollution in soil and shoots than the “small-scale farmer management” pattern. Strong and complex correlations among HMs were unveiled in both soil and shoot samples. The Cr content of 39% of the shoot samples exceeded China’s national standards. Cu and Zn were the two most easily accumulated HMs in shoots, with BCF of 0.1235 and 0.1101, respectively. Bioaccumulations of As and Cd were positively correlated with their concentrations in soil. Furthermore, the positive matrix factorization model (PMF) identified three main sources of soil HMs, i.e., Pb and Zn from traffic emissions accounting for 30%; Ni, Mn, and Cr from pedogenic parent material making up 35.4%; and As from mining and metallurgical activities accounting for 34.6%. Monte Carlo simulations suggested the probability of total noncarcinogenic risk for children from bamboo shoots was 24.82% and that As in the soil was the primary element of health risk to children (HQc = 13.94%). These findings emphasize the urgent need to control and mitigate HM pollution from the identified sources and may contribute to the sustainable cultivation of D. brandisii and food safety in Yunnan and similar tropical areas with high HM contents.

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Potential of Growing Energy Crops and Then Producing Liquid Fuels in Marginal Land: A China Scenario

Li,

Chen,

Liu

et al. 2024

j biobased mat bioenergy

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To explore the potential of growing energy crops and then producing liquid fuels in marginal land in China, in this paper, the status quo of existing biomass resources and marginal land utilization in China have been first analyzed and the development process of biomass liquid fuels has then been reviewed. Secondly, using ethyl levulinate (EL) as our research subject, the production capacity of growing energy crops in marginal land and their potential to prepare liquid fuels have been explored. Finally, the problems in developing marginal land have been summarized, and proposed policy recommendations for marginal land development, energy crop cultivation, and liquid fuel development suitable for Chinese conditions. The results showed that the potential of sweet sorghum, cassava, jatropha curcas, and switchgrass cultivation in China in producing is 75.76 million tonnes, 1.52 million tonnes, 4.57 million tonnes, and 5.16 million tonnes, respectively. Among these crops, sweet sorghum and switch grass have a higher production capacity and are more suitable to be planted on marginal land and used to produce liquid fuels. The planting of these two crops has absorbed about a 111.11 million tonnes and 7.57 million tonnes of carbon dioxide (CO2), respectively, presenting significant carbon sequestration and oxygen-producing effects, which provides a theoretical basis for the analysis of land use change.

show abstract

Pollution Risk Assessment and Sources Analysis of Heavy Metal in Soil from Bamboo Shoots

Cited by 4 publications

References 66 publications

Exploring the potential of growing energy crops and then producing liquid fuels in marginal land: A China scenario

Exploring the potential of growing energy crops and then producing liquid fuels in marginal land: A China scenario

Bioaccumulation and Potential Risk Assessment of Heavy Metals in Tropical Bamboo Plantations of Dendrocalamus brandisii under Two Cultivation Patterns in Yunnan, China

Potential of Growing Energy Crops and Then Producing Liquid Fuels in Marginal Land: A China Scenario

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