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Article ; Online: Study on agricultural water resource utilization efficiency under the constraint of carbon emission and water pollution.

Feng, Yin / Cheng, Jinhua / Deng, Ying

2024 , Page(s) 119142

Abstract: Agricultural water resource utilization efficiency in China is facing significant challenges due to the dual constraints of carbon emissions and water pollution. The inefficiency in water usage in agriculture not only impacts the sustainability of water ... ...

Abstract	Agricultural water resource utilization efficiency in China is facing significant challenges due to the dual constraints of carbon emissions and water pollution. The inefficiency in water usage in agriculture not only impacts the sustainability of water resources but also contributes to environmental degradation through increased carbon emissions and water pollution. Agricultural water resource utilization efficiency under the constraint of carbon emission and water pollution has been a critical issue in China from 2005 to 2022. This study employs the Quantile Autoregressive Distributed Lag (QARDL) method to comprehensively assess and analyze the complex relationship that exists between agricultural water usage, carbon emissions, and water pollution. By analyzing distinct quantiles of the data distribution, the research investigates how different levels of water resource utilization efficiency relate to carbon emissions and water pollution under various conditions. The findings reveal nuanced insights into the dynamic interactions among these components within the agricultural sector. This research project focuses on the efficiency of water resource utilization in agriculture while considering the constraints of carbon emission and water pollution. Given the dynamic and time-dependent character of these components, the QARDL methodology makes it possible to get a detailed knowledge of how they interact within the framework of agriculture. The study aims to give significant insights and policy suggestions to improve agricultural practices while minimizing environmental concerns linked to carbon emissions and water pollution.
Language	English
Publishing date	2024-05-13
Publishing country	Netherlands
Document type	Journal Article
ZDB-ID	205699-9
ISSN	1096-0953 ; 0013-9351
ISSN (online)	1096-0953
ISSN	0013-9351
DOI	10.1016/j.envres.2024.119142
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Article ; Online: Comparison of the effects of litter decomposition process on soil erosion under simulated rainfall.

Zhu, Fangfang / Cheng, Jinhua

Scientific reports

2022 Volume 12, Issue 1, Page(s) 20929

Abstract: Overland flow parameters play a pivotal role in soil erosion, which are affected by litter cover in forests. In this study, the litter layer of Pinus massoniana (Masson pine) was divided into non-decomposed and semi-decomposed layers. Seven litter ... ...

Abstract	Overland flow parameters play a pivotal role in soil erosion, which are affected by litter cover in forests. In this study, the litter layer of Pinus massoniana (Masson pine) was divided into non-decomposed and semi-decomposed layers. Seven litter coverage mass gradients, two slopes (5° and 10°), and two rainfall intensities (60 and 120 mm·h
MeSH term(s)	Soil Erosion ; Soil ; Forests ; Pinus ; Plant Leaves
Chemical Substances	Soil
Language	English
Publishing date	2022-12-03
Publishing country	England
Document type	Journal Article
ZDB-ID	2615211-3
ISSN	2045-2322 ; 2045-2322
ISSN (online)	2045-2322
ISSN	2045-2322
DOI	10.1038/s41598-022-25035-2
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Variability in the Hydrological Processes of Six Typical Woodlands Based on Stable Isotopes in Subtropical Regions in Central China

Zhu, Fangfang / Li, Yuchen / Cheng, Jinhua

Forests. 2023 June 23, v. 14, no. 7

2023

Abstract: Changes in woodland characteristics induced by plants and soil greatly affect soil hydrological processes. Stable isotope technology and indoor soil moisture characteristic experiments were conducted at three rainfall levels (3.6, 23.5, and 49.8 mm) to ... ...

Abstract	Changes in woodland characteristics induced by plants and soil greatly affect soil hydrological processes. Stable isotope technology and indoor soil moisture characteristic experiments were conducted at three rainfall levels (3.6, 23.5, and 49.8 mm) to investigate the hydrological processes under six woodlands (two pure forests and four mixed forests). The main influencing factors contributing to these changes were identified in a low mountain and hilly region in central China. The soil waterline equation in this area was soil water δD = 5.626 δ18O − 16.791 (R² = 0.798). The slope and intercept in the soil waterline equation were smaller than the atmospheric waterline equation. From a temporal perspective, the soil moisture content varied in the same trend under different rainfall events, with the maximum and minimum values on the first day after rainfall and the day before rainfall, respectively. However, an overall trend that first increased and then decreased was observed. From a spatial perspective, the soil moisture content increased with soil depth, and the increase rate was in the order of 0–20 cm and 20–40 cm in different soil layers. The soil moisture content in mixed conifer broadleaved woodlands was high. The soil water δD and δ18O in mixed conifer broadleaved woodlands and underground soil were relatively depleted. The effects of soil water-holding capacity, particle size composition, slope, canopy closure, and other factors on soil hydraulic parameters were comprehensively analyzed. The results showed that the extremely coarse sand (1–2 mm) particle content was the main parameter affecting soil-saturated hydraulic conductivity Ks, whereas the slope was the main factor affecting soil water δD and δ18O. In needle-leaved forests, the soil water infiltration form was a rainwater and soil water mixture downward diffusion, whereas the rainwater replaced the original soil water in the needle and mixed conifer broadleaved forests.
Keywords	canopy ; conifers ; equations ; hydraulic conductivity ; infiltration (hydrology) ; particle size ; rain ; sand ; soil depth ; soil water ; soil water characteristic ; soil water content ; soil water retention ; stable isotopes ; woodlands ; China
Language	English
Dates of publication	2023-0623
Publishing place	Multidisciplinary Digital Publishing Institute
Document type	Article ; Online
ZDB-ID	2527081-3
ISSN	1999-4907
ISSN	1999-4907
DOI	10.3390/f14071296
Database	NAL-Catalogue (AGRICOLA)

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Article ; Online: Preferential Flow and Preferential Path Characteristics of the Typical Forests in the Karst Region of Southwest China

Guan, Ning / Cheng, Jinhua / Shi, Xueqi

Forests. 2023 June 15, v. 14, no. 6

2023

Abstract: The ecological environment in the karst region of southwest China is fragile, and vegetation degradation is considered the main cause of this phenomenon. Vegetation growth is affected by preferential flow due to a large number of fissures and macropores ... ...

Abstract	The ecological environment in the karst region of southwest China is fragile, and vegetation degradation is considered the main cause of this phenomenon. Vegetation growth is affected by preferential flow due to a large number of fissures and macropores in the soil. Therefore, the preferential flow and preferential paths in local typical vegetation need to be studied. The distribution and developmental characteristics of preferential flow and preferential paths in three typical local stands were obtained by conducting field staining tracer experiments and using image processing techniques. The results showed that there was preferential flow movement in the soil moisture of the local understorey and that there was a high degree of preferential flow development and high variability. The degree of preferential flow in several typical forests can be expressed, from highest to lowest, in the following order: secondary forests, Cupressus duclouxiana Hickel (Hickel., 1814) forest, and Pinus massoniana (Lamb., 1803) forest. The preferential paths in the soil were mainly distributed above 15 cm, and the number of preferential paths with a small influence radius was much greater than that with a large influence radius. The preferential paths with an influence radius of 2.5~5 mm accounted for the largest proportion. The total number of preferential paths in the P. massoniana forest was small. The preferential paths in the secondary and C. duclouxiana Hickel forests were similar in number, but the secondary forests had more preferential paths with a large influence radius. This study investigated the characteristics of preferential flow and preferential paths in the typical forests of the karst region in southwest China, and it can provide data and research directions for the study of hydrological processes in local forest vegetation.
Keywords	Cupressus ; Pinus massoniana ; forests ; karsts ; macropores ; preferential flow ; soil water ; understory ; China
Language	English
Dates of publication	2023-0615
Publishing place	Multidisciplinary Digital Publishing Institute
Document type	Article ; Online
ZDB-ID	2527081-3
ISSN	1999-4907
ISSN	1999-4907
DOI	10.3390/f14061248
Database	NAL-Catalogue (AGRICOLA)

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Article ; Online: Investigating the effect of soil cracks on preferential flow using a dye tracing infiltration experiment in karst in Southwest China

Hou, Fang / Cheng, Jinhua / Guan, Ning

Land Degradation & Development. 2023 Apr. 15, v. 34, no. 6 p.1612-1628

2023

Abstract: Soil cracks significantly affect the preferential flow, and various uncertainties are associated with the effect of soil cracks on preferential flow in karst areas in Southwest China. This study investigated soil crack properties (inclusions, width, and ... ...

Abstract	Soil cracks significantly affect the preferential flow, and various uncertainties are associated with the effect of soil cracks on preferential flow in karst areas in Southwest China. This study investigated soil crack properties (inclusions, width, and configuration) by applying ground‐penetrating RADAR (GPR) to pedons. Blue dye‐tracing experiments were designed based on the geophysical detection results to assess the influences of crack inclusions (sand grains and rock fragments), crack widths (1, 1.5, and 2 cm), and configurations (I‐shape, V‐shape, and Λ‐shape) on preferential flow. The following results were obtained: (1) the GPR envelope can describe the configuration of isolated soil cracks; (2) soil cracks can accelerate infiltration and increase the maximum dye‐penetration depth, cumulative infiltration, and wetting‐front depth by averages of at least 5.2%, 63.2% and 4.4%, respectively; and (3) the I‐ and Λ‐shaped soil crack configurations contributed to preferential flow, but the preferential flow was not observed along the V‐shaped‐configuration‐crack pore paths despite the retardation of brilliant blue FCF. The I‐shaped configurations, with a crack width of 1.5 cm, were filled with rock fragments and had higher preferential flow ratios (18.2%–52.3%) and length indices (4.0%–33.8%) compared to the other configurations. In summary, inclusions, crack width, and configuration significantly influence the preferential flow (p < 0.05), and the influence of these soil crack properties on preferential flow cannot be neglected during vegetation restoration and groundwater security operations in karst areas.
Keywords	dyes ; ecological restoration ; geophysics ; ground-penetrating radar ; groundwater ; karsts ; land degradation ; preferential flow ; sand ; wetting front ; China
Language	English
Dates of publication	2023-0415
Size	p. 1612-1628.
Publishing place	John Wiley & Sons, Ltd.
Document type	Article ; Online
Note	JOURNAL ARTICLE
ZDB-ID	1319202-4
ISSN	1085-3278
ISSN	1085-3278
DOI	10.1002/ldr.4557
Database	NAL-Catalogue (AGRICOLA)

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Article ; Online: Risk assessment and prediction of critical mineral resources supply for China

CHENG Jinhua / SHUAI Jing / ZHAO Yujia / DUAN Haoran / SHUAI Chuanmin

Ziyuan Kexue, Vol 45, Iss 9, Pp 1778-

A case of copper

2023 Volume 1788

Abstract: Objective] In today’s world, global risks have increased dramatically, and critical mineral resources are no exception. What are the supply risks of critical minerals for China and how should China deal with the increasing risks of critical mineral ... ...

Abstract	[Objective] In today’s world, global risks have increased dramatically, and critical mineral resources are no exception. What are the supply risks of critical minerals for China and how should China deal with the increasing risks of critical mineral resources supply? [Methods] To answer these questions, we established an evaluation and prediction indicator system of environment-market-resource-competitiveness (EMRC) for assessing the supply risks of critical mineral resources by introducing an international competitiveness index, evaluated the supply risk of copper resources in China from 2008 to 2021 by using the stochastic multicriteria acceptability analysis (SMAA-TRI) method, and predicted the supply risk of copper resources in China by adopting the back propagation (BP) neural network. [Results] The results show that: (1) The international competitiveness dimension had the greatest impact on China’s copper supply risk, while the environmental dimension had the least impact; (2) From the perspective of the overall supply risk of copper resources, China’s risk is generally in the medium-high to high range, with a rising trend year by year; (3) From 2022 to 2023, the predicted value of China’s copper resources supply risk is medium-high. [Conclusion] To enhance the security of copper resources supply, China should increase investment in copper exploration, improve the utilization rate of domestic copper resources, strengthen resource diplomacy, and diversify import sources.
Keywords	\|critical minerals\|copper resources\|supply risk\|evaluation and prediction\|international competitiveness\|smaa-tri ; Environmental sciences ; GE1-350 ; Biology (General) ; QH301-705.5
Subject code	950
Language	Chinese
Publishing date	2023-09-01T00:00:00Z
Publisher	Science Press, PR China
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Spatial evolution and decomposition of energy-related CO

Zuo, Zhili / Li, Yonglin / Guo, Haixiang / Cheng, Jinhua

Environmental science and pollution research international

2023 Volume 30, Issue 45, Page(s) 101599–101615

Abstract: To ensure China's energy security, the mining industry faces increasing emissions reduction and energy conservation pressures. This study combined index and production-theoretical decomposition analyses to decompose the energy-related ... ...

Abstract	To ensure China's energy security, the mining industry faces increasing emissions reduction and energy conservation pressures. This study combined index and production-theoretical decomposition analyses to decompose the energy-related CO
MeSH term(s)	Carbon Dioxide/analysis ; Industry ; Industrial Development ; Economic Development ; China ; Carbon/analysis
Chemical Substances	Carbon Dioxide (142M471B3J) ; Carbon (7440-44-0)
Language	English
Publishing date	2023-08-31
Publishing country	Germany
Document type	Journal Article
ZDB-ID	1178791-0
ISSN	1614-7499 ; 0944-1344
ISSN (online)	1614-7499
ISSN	0944-1344
DOI	10.1007/s11356-023-29244-8
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: How does digital economy development affect renewable energy innovation?

Yi, Jiahui / Dai, Sheng / Li, Lin / Cheng, Jinhua

Renewable and Sustainable Energy Reviews

2024 Volume 192

Abstract: The digital economy has been remarkably fueling the sustainability of renewable energy worldwide. However, how it accelerates renewable energy development, particularly renewable energy innovation, remains unknown. Using a panel of 65 countries from 2002 ...

Abstract	The digital economy has been remarkably fueling the sustainability of renewable energy worldwide. However, how it accelerates renewable energy development, particularly renewable energy innovation, remains unknown. Using a panel of 65 countries from 2002 to 2019, this research applies a dynamic panel model to explore the relationship between the digital economy and renewable energy innovation and analyze their impact mechanisms. The heterogeneous effects of the digital economy on innovation are further investigated. The main empirical findings suggest that the digital economy has a significant positive impact on renewable energy innovation. Such an effect is also observed in solar, wind, and biomass energy but geothermal energy. Furthermore, the role of human capital, renewable energy investment, and market potential can contribute to this positive effect. Countries with high incomes, high policy intensity, and strong manufacturing fundamentals are found to have a more significant positive impact. It is therefore recommended that governments develop digital infrastructure and applications, integrate the digital economy with renewable energy, and improve renewable energy innovation.
Keywords	Digital economy ; Global perspective ; Heterogeneous effects ; Renewable energy innovation
Subject code	339
Language	English
Publishing country	nl
Document type	Article ; Online
ZDB-ID	2019940-5
ISSN	1879-0690 ; 1364-0321
ISSN (online)	1879-0690
ISSN	1364-0321
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article: Soil Water Use Strategies of Dominant Tree Species Based on Stable Isotopes in Subtropical Regions, Central China

Li, Yuchen / Zhu, Fangfang / Wang, Yu / Cheng, Jinhua

Water. 2022 Mar. 18, v. 14, no. 6

2022

Abstract: Water is a crucial factor affecting plant growth and ecosystem processes. In the subtropical region, global climate change leads to frequent seasonal droughts. How plant water strategies and the adaptability of forest ecosystems change is an urgent issue ...

Abstract	Water is a crucial factor affecting plant growth and ecosystem processes. In the subtropical region, global climate change leads to frequent seasonal droughts. How plant water strategies and the adaptability of forest ecosystems change is an urgent issue to be discussed. In this study, four sample plots (P. massoniana for Plot 1, C. lanceolata for Plot 2, Q. acutissima for Plot 3, C. funebris and I. corallina for Plot 4) were selected in the Taizishan Mountain area of Hubei, China, including three forest types (coniferous forest, broad-leaved forest and coniferous broad-leaved mixed forest) and five dominant tree species. The δD and δ¹⁸O isotope compositions in plant and soil water were analysed, and the water use strategies of dominant species were predicted by using the MixSIAR model. The water absorption depth and proportion of the five species were significantly different in different seasons. In plot 4, I. corallina and C. funebris derived (58.8 ± 14.0% and 55.7 ± 23.4%, respectively) water from 10–40 cm soil in wet season, but C. funebris shifted to derive water from deep soil in dry season. This result indicates that the mixing of C. funebris and I. corallina can effectively prevent water competition in dry season with water deficit. From wet season to dry season, the depth of water utilisation of the P. massoniana, C. lanceolata, Q. acutissima and C. funebris with deep roots converted from shallow to deep soil, suggesting that the four species had significant dimorphic root systems and strong ecological plasticity.
Keywords	climate change ; coniferous forests ; deciduous forests ; dominant species ; dry season ; mixed forests ; models ; plant growth ; soil water ; subtropics ; trees ; water uptake ; water utilization ; wet season ; China
Language	English
Dates of publication	2022-0318
Publishing place	Multidisciplinary Digital Publishing Institute
Document type	Article
ZDB-ID	2521238-2
ISSN	2073-4441
ISSN	2073-4441
DOI	10.3390/w14060954
Database	NAL-Catalogue (AGRICOLA)

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Article: Renewable energy product competitiveness: Evidence from the United States, China and India

Shuai, Jing / Zhao, Yujia / Wang, Yilan / Cheng, Jinhua

Energy. 2022 June 15, v. 249

2022

Abstract: In order to achieve the goal of limiting the global average temperature increase by 2 °C in the Paris Agreement on climate change, the international community must make unprecedented changes to the current human lifestyle, energy and transportation ... ...

Abstract	In order to achieve the goal of limiting the global average temperature increase by 2 °C in the Paris Agreement on climate change, the international community must make unprecedented changes to the current human lifestyle, energy and transportation system. Under such circumstances, the United States, China, India and other developing and developed countries have made remarkable progress in renewable energy production and trade. In order to systematically evaluate the international competitiveness of renewable energy products of the United States, China and India, the current study has built a new multi-dimensional evaluation index to estimate the international competitive edge of renewable energy products exported from these countries, by abandoning the traditional methods for measuring trade competitiveness and adopting the projection pursuit (PP), TOPSIS model and the improved weighting methodology. The results demonstrate that the overall international competitiveness of renewable energy products of the United States is very strong, whereas China and India have seen a rapid growth; and distinct differences exist in the component factors leading to the international competitiveness among the three countries. Based on these findings, this study has put forward corresponding policy implications.
Keywords	United Nations Framework Convention on Climate Change ; energy ; humans ; issues and policy ; lifestyle ; models ; renewable energy sources ; temperature ; trade ; transportation ; China ; India
Language	English
Dates of publication	2022-0615
Publishing place	Elsevier Ltd
Document type	Article
ZDB-ID	2019804-8
ISSN	0360-5442 ; 0360-5442
ISSN (online)	0360-5442
ISSN	0360-5442
DOI	10.1016/j.energy.2022.123614
Database	NAL-Catalogue (AGRICOLA)

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