期刊：
Journal of Cleaner Production,2022年335:130288 ISSN：0959-6526
通讯作者：
Wei Li<&wdkj&>Fu Jia
作者机构：
[Liu, Kanying; Lan, Yong] Hunan Agr Univ, Sch Business, Changsha 410128, Hunan, Peoples R China.;[Liu, Kanying; Li, Wei] Hunan Univ, Sch Econ & Trade, Changsha 410079, Hunan, Peoples R China.;[Li, Wei] Hunan Key Lab Logist Informat & Simulat Technol, Changsha 410079, Hunan, Peoples R China.;[Jia, Fu] Univ York, York Management Sch, York YO10 5GD, N Yorkshire, England.
通讯机构：
[Wei Li] S;[Fu Jia] Y;School of Economics and Trade, Hunan University, Changsha, Hunan, 410079, PR China<&wdkj&>Hunan Key Laboratory of Logistics Information and Simulation Technology, Changsha, Hunan, 410079, PR China<&wdkj&>York Management School, University of York, YO10 5GD, UK
摘要：
Behaviour-based pricing (BBP) fully considers the willingness to pay, behavioural characteristics and rational expectations of new and old customers and can dynamically adjust pricing strategies based on purchase histories. Therefore, compared with uniform pricing, BBP can promote the development of green products in the market. Additionally, BBP gradually influences the pricing decisions of the supply chain. Therefore, this paper explores for the first time the pricing decisions and coordination mechanisms of the green product supply chain (GPSC) under a behavioural pricing model. BBP is implemented under two scenarios, centralisation and decentralisation, and the optimal pricing and supply chain decision-making are compared. Under the centralised scenario, the profit, greenness, market share and environmental friendliness are all higher than those under the decentralised scenario, and in most cases, consumers can better afford green products. Therefore, a revenue-sharing model is designed to realise GPSC coordination under BBP. The numerical experiments show that the proportion of revenue shared by green product retailers is positively correlated with the initial market share of green products; the proposed coordination mechanism can improve the greenness and profits of enterprises in a GPSC, the consumer surplus of green products and the overall environment performance.
关键词：
image processing;quality of agricultural products;image denoising;LSTM network
摘要：
Farmers should provide high-quality agricultural products and companies should receive high-quality agricultural products, which is the purpose and pursuit of the business model of "companies plus farmers". In order to increase the stability of the cooperation mode between companies and farmers, it is necessary to detect the quality of agricultural products accurately, objectively and efficiently. Therefore, this article studies the quality inspection method of agricultural products based on image processing. Firstly, the traditional threshold calculation method and threshold function are improved to obtain more ideal denoising effect of agricultural products images. Aiming at the problem that the traditional image processing model cannot obtain fine-grained feature information of image objects, a multi-level feature dependence extraction network is constructed, and the structure and working principle of the network model are introduced in detail. Experimental results verify the effectiveness of the proposed algorithm and model for agricultural product quality inspection.
摘要：
To explore the optimal government subsidy strategy for a green supply chain (GSC) under behaviour-based pricing (BBP), three types of GSC subsidy models under BBP are explored by using game theory, and the influence of different subsidy ratios and subsidy coefficients on pricing and greenness under BBP was analysed for the first time. Additionally, the effects of different strategies are compared. Our results reveal the following: First, when the subsidy is based on output or green degree, the proportion of green product retailers receiving subsidies has only a positive impact on the wholesale price of green products. Second, when the product R&D input cost is subsidized, the proportion of green product retailers receiving subsidies is negatively correlated with greenness, wholesale price, loyalty price, poaching price, market share of green products and GSC profit. Third, when the product R&D input cost is subsidized, the loyalty and poaching prices of green products always increase with an increase in the subsidy coefficient. However, when the subsidy is based on output or green degree, the loyalty and poaching prices of green products increase or decrease with the increased subsidy coefficient. A numerical case example shows that the optimal subsidy strategy of a GSC under a BBP is different from those of previous studies. Subsidies based on green degrees are the optimal strategy for green product retailers, green consumers and governments.
作者机构：
[Zhou, Ping; Li, Hailing] Hunan Agr Univ, Business Sch, Changsha 410128, Peoples R China.
通讯机构：
[Hailing Li] B;Business School, Hunan Agricultural University, Changsha 410128, China<&wdkj&>Author to whom correspondence should be addressed.
关键词：
Tapio decoupling;carbon emissions;low-carbon transformation;sustainable development;Jiangsu
摘要：
Based on the Tapio decoupling model, this paper discusses the decoupling relationship between the economic growth and carbon emissions of the manufacturing sector in southern Jiangsu, northern Jiangsu and middle Jiangsu during the 13th Five-Year-Plan period. By using the LMDI method, the carbon emissions and influencing factors of 31 subindustries of the manufacturing sector in Jiangsu Province from 2016 to 2020 were quantitatively analyzed by region and industry. The main findings are as follows: (1) during the 13th Five-Year-Plan period, the growth rate of the energy consumption and carbon emissions of the manufacturing sectors in southern Jiangsu, northern Jiangsu and middle Jiangsu slowed down, and the industrial structure was increasingly optimized; (2) economic growth is the primary driving force behind the manufacturing carbon emissions in the three regions of Jiangsu Province, while energy intensity is the main factor that affects the carbon-emission differences among the manufacturing subsectors in the different regions; (3) improving the energy efficiency of high-emission-intensity industries, such as the ferrous metal smelting and calendering industry, chemical industry and textile industry, is the key to reducing the carbon emissions of the manufacturing sector in the different regions of Jiangsu in the future. Jiangsu Province should promote the upgrading of the manufacturing-industry structure, and it should encourage the high-energy-consumption industry to reduce its energy intensity by technological innovation to achieve the goal of emission reduction and economic growth.
作者机构：
[Liu, Zhicheng; Cui, Gang] Hunan Agr Univ, Coll Business, Changsha 410128, Peoples R China.;[Cui, Gang] Hunan Agr Univ, Coll Water Resources & Civil Engn, Changsha 410128, Peoples R China.
通讯机构：
[Zhicheng Liu] C;College of Business, Hunan Agricultural University, Changsha 410128, China<&wdkj&>Author to whom correspondence should be addressed.
期刊：
POLISH JOURNAL OF ENVIRONMENTAL STUDIES,2022年31(6):5419-5425 ISSN：1230-1485
通讯作者：
Yi, H
作者机构：
[Huang Yi; Yi Hua; Wei Yong-Jun; Yi, H; Liu Quan-Xi] Changsha Social Work Coll, Sch Business, Changsha 410004, Hunan, Peoples R China.;[Deng Zhi-Ying] Changsha Social Work Coll, Sch Finance & Management, Changsha 410004, Hunan, Peoples R China.;[Wang Ran] Hunan Agr Univ, Sch Business, Changsha 410128, Hunan, Peoples R China.;[Li Bo] Hunan Inst Engn, Sch Management, Xiangtan 411104, Hunan, Peoples R China.
通讯机构：
[Yi, H ] C;Changsha Social Work Coll, Sch Business, Changsha 410004, Hunan, Peoples R China.
关键词：
heavy metal polluted region;crop rotation and fallowing;cumulative logistic model;rational farmers
摘要：
Significant progress has been made in environmental management since 2016, when crop rotation and fallow were introduced in heavy metal-contaminated areas. The result shows that the satisfaction of farmers with the treatment effect of heavy metal pollution and their income after crop rotation and fallow was higher. Using the cumulative logistic regression model, this paper makes an empirical study on the factors influencing of 400 households in 10 villages and towns of 4 districts and counties in Hunan Province. The results show that education level, pollution degree have positive influence on the satisfaction degree of environmental governance and income, but family income has a negative influence. Age level has positive influence on the satisfaction degree of environmental governance, but negative influence on income.
摘要：
Abstract: Rice is the staple food for 2.5 billion people worldwide and most farmers depend solely on rice for their livelihood. This study estimates how paddy ecosystem elasticity and external human activity affect paddy ecosystem sustainable food supply. In particular, we analyzed how sustainable food supply is affected by three key domains of external factors—ecological factors, including the proportion of paddy Area (Are), per capita cultivated land area (Lan), and annual wastewater discharge per capita (Was); economic factors, including the agricultural economy level (Inv) and urbanization rate (Urb); and social factors, including the education of farmers (Edu) and rural medical level (Med). We use ANEV, or net paddy ecosystem services value per unit area, to assess the sustainable food supply, which not only represents the food supply quantity and quality, but also the sustainability of the food supply. Results from our panel and threshold regressions suggest that Lan and Urb have a threshold effect on paddy ANEV; Are, Was, Inv, and Edu have a linear negative correlation with ANEV; and Med has a positive linear correlation with ANEV. Based on our findings, we lay out a series of recommendations that may guide future formulation of policies on paddy ecosystem protection and sustainable food supply. Keywords: sustainable food supply; policy; paddy ecosystem elasticity; threshold effect; ANEV
期刊：
MATHEMATICAL BIOSCIENCES AND ENGINEERING,2022年19(12):14056-14073 ISSN：1547-1063
作者机构：
[Long, Jianjun] Chongqing Technol & Business Univ, Sch Management Sci & Engn, Chongqing 400067, Peoples R China.;[Huang, Hui] Hunan Agr Univ, Sch Business, Changsha 410128, Peoples R China.
关键词：
Cournot-Bertrand game;asymmetric information;cluster spillovers;bifurcation;chaos control
摘要：
Bounded rationality, asymmetric information and spillover effects are widespread in the economic market, and had been studied extensively in oligopoly games, however, few literature discussed the incomplete information between bounded rational oligopolists in an enterprise cluster. Considering the positive externalities brought by the spillover effect between cluster enterprises, a duopoly Cournot-Bertrand game with bounded rationality and asymmetric information is proposed in this paper. in our model, firm 1 with an information advantage knows all the price information of firm 2 with an information advantage, while firm 2 only partially knows the output information of firm 1, and they adopt boundedly rational expectation and nave expectation respectively. Interestingly, our theoretical analysis reveals that: (1) When the output adjustment speed of enterprises with information advantage is large or the substitutability between monopoly products is high, moderate effective information is beneficial to the stability of product market, while too low or too high effective information may lead to market disorder. (2) The relationship between cluster spillover and Nash equilibrium stability depends on product substitutability. When the substitutability is small, smaller cluster spillovers are more conducive to the stability of product output or price; when the substitutability is large, the larger the cluster spillover is, the more stable the product market is. Our research has an important theoretical and practical significance to the production-price competition in oligopoly markets.
期刊：
Journal of Food Processing and Preservation,2021年45(11):e15903- ISSN：0145-8892
通讯作者：
Su-Chun Liu
作者机构：
[Hu, Zhi-Yuan; Liu, Su-Chun] Hunan Agr Univ, Coll Food Sci & Technol, Changsha, Peoples R China.;[Hu, Zhi-Yuan; Li, Tao-Tao; Yu, Song-Lin; Liu, Shi-Quan] Dark Tea & Jin Hua Hunan City Univ, Hunan Prov Key Lab, Yiyang, Peoples R China.;[Xu, Zheng-Gang] Northwest A&F Univ, Coll Forestry, Key Lab Natl Forestry & Grassland Adm Management, Yangling, Shaanxi, Peoples R China.;[Zhao, Wei-Ping] Hunan Agr Univ, Coll Business, Changsha, Peoples R China.
通讯机构：
[Su-Chun Liu] C;College of Food Science and Technology, Hunan Agricultural University, Changsha, China
摘要：
In this study, the whole mitochondrial genome sequencing of Aspergillus chevalieri, which was isolated from dark tea were analyzed and compared with its two related species (Aspergillus cristatum and Aspergillus pseudoglaucus). Results indicated that the mitochondrial genome of A. chevalieri was 56,139 bp in length, the content of the four bases A, T, C and G are 36.83%, 35.79%, 12.30% and 15.08% respectively, its genome encoded 44 genes. The phylogenetic tree constructed with mitochondrial protein-encoding genes could effectively clarify the evolutionary relationship between A. chevalieri, A. cristatum, A. pseudoglaucus and other Aspergillus species. The morphological characteristics and extracellular enzyme activities of the 3 Aspergillus were further analyzed. Results showed that there were certain differences in the microstructure and enzymatic characteristics of the three Aspergillus species. This study improves the taxonomy status of Aspergillus and is conducive to the control of the fermentation process of dark tea. Practical applications Aspergillus is a dominant and essential microorganism in several types of fermented foods, especially dark tea. However, Aspergillus species were easy to be confused. Our research compares and analyzes the Aspergillus chevalieri, Aspergillus cristatum, and Aspergillus pseudoglaucus in dark tea from the three aspects of the mitochondrial genome, morphological characteristics, and enzyme activity, which is helpful for identify and control of the key microorganisms in the fermentation of dark tea and stabilize the product quality.
关键词：
Investment;Renewable energy sources;Decision making;Fuzzy sets;Bibliographies;Licenses;Companies;Renewable energy investments;incomplete preferences;consensus group decision making;Pythagorean fuzzy sets;balanced scorecard;DEMATEL
摘要：
The aim of this study is to generate appropriate strategies to improve renewable energy investments. Within this framework, a novel model has also been proposed which includes three different stages. Firstly, incomplete preferences of the relation matrixes are calculated. For this purpose, 4 different decision makers evaluate the balanced scorecard-based criteria. In this stage, missing values are estimated by incomplete preferences to complete the relation matrixes. Additionally, the second stage includes the computing the fuzzy preferences by considering the consensus-based group decision-making (CGDM). The final stage is related to the calculation of the weights of the criteria by considering Pythagorean fuzzy decision-making trial and evaluation laboratory (DEMATEL) methodology. Hence, the main motivation of this study is to identify innovative strategies for the renewable energy investments with a novel multi-criteria decision-making (MCDM) model based on incomplete preferences, CGDM and Pythagorean fuzzy sets. The findings indicate that learning and growth is the most important balanced scorecard-based perspective to improve the performance of renewable energy investments. Additionally, the perspective of internal process is identified as another significant factor for this situation. The biggest problem in renewable energy projects is their high initial costs. Hence, technological developments reduce the production costs of renewable energy sources. Additionally, it is also possible to increase the amount of electricity from renewable energy sources owing to the innovative technologies. Thus, renewable energy investors should follow up-to-date technological developments so that it will be possible to reduce the cost of renewable energy investments.
摘要：
The existing literature on the environmental Kuznets curve (EKC) fails to investigate the spatial attribute of the “pollution halo” effect or to integrate the “pollution haven” effect. This paper extends the EKC model to the spatial Durbin model by exploring the spatial spillover of disembodied technology and the pollution transfer effect of environmental regulation. Taking Chinese agricultural foreign trade as an example, our paper finds that the technology spillover does not bring a pollution halo effect to local areas but to adjacent areas. The pollution haven effect impacts the EKC’s turning point, which can be divided into two curves in the spatial dimension: an inverted U-shaped curve, in which the turning point represents the effect of technological innovation, and a U-shaped curve, in which the turning point represents the transfer effect of pollution-intensive industries. Based on the conclusion, this paper recommends that agricultural non-point pollution reduction should be nationally coordinated to establish transport infrastructure and the agricultural human capital conditions for the spatial diffusion of disembodied technology.
摘要：
Comprehensive evaluation of the sustainability of paddy ecosystems is key to success in paddy ecosystem management. In this research, we propose a novel quantitative method for sustainability evaluation based on the net value of ecosystem services, which consists of a new elasticity-based sustainability evaluation framework for agricultural ecosystems. The sustainability of ecosystems, evaluated through ecosystem elasticity, is reflected in seven measurable indicators within three domains: ecological, which includes the proportion of paddy area, per capita cultivated land area, and annual waste water discharge per capita; economic, which includes the agricultural economy level and urbanization rate; and social, which includes education of farmers and rural medical level. The evaluation approach we propose constitutes an important contribution to sustainability evaluation methodology. We apply the proposed approach to evaluate the sustainability of China?s paddy ecosystems. The results suggest that the overall paddy ecosystem elasticity in China was on the rise in 2009e2017, indicating the weakening of anti interference ability and stability of the paddy ecosystem and the deterioration of paddy ecosystem sustainability. Our results also reveal obvious sustainability imbalance in paddy ecosystems across different regions of China. These findings offer empirical evidence substantiating the urgent need for Chinese governmental initiatives to improve the sustainability of paddy ecosystems, particularly those in the Northeastern region. The findings also necessitate inter-regional collaborations, especially collaborations between adjacent paddy ecosystems, to institute cross-regional standards and policies pertaining to the sustainability of paddy ecosystems. The results from the evaluations of China?s paddy ecosystems may serve as a wake-up call for other countries to assess the sustainability of their own ecosystems using the approach we propose. The findings are also likely to raise the awareness of ecosystem sustainability and its evaluation, and promote global ecosystem sustainability research. ? 2021 Elsevier Ltd. All rights reserved.
期刊：
ISPRS International Journal of Geo-Information,2021年10(7):466- ISSN：2220-9964
通讯作者：
Nan Yang
作者机构：
[Zhao, Yunlin; Xu, Zhenggang; Mo, Wenbo] Cent South Univ Forestry & Technol, Key Lab Forestry Remote Sensing Based Big Data &, Changsha 410004, Peoples R China.;[Mo, Wenbo] Hunan City Univ Design & Res Inst Co LTD, Changsha 410028, Peoples R China.;[Mo, Wenbo] Hunan Urban & Rural Ecol Planning & Restorat Engn, Changsha 410028, Peoples R China.;[Yang, Nan] Hunan City Univ, Coll Architecture & Urban Planning, Lab Key Technol Digital Urban Rural Spatial Plann, Yiyang 413000, Peoples R China.;[Zhao, Weiping] Hunan Agr Univ, Sch Business, Changsha 410128, Peoples R China.
通讯机构：
[Nan Yang] L;Laboratory of Key Technologies of Digital Urban-Rural Spatial Planning of Hunan Province, College of Architecture & Urban Planning, Hunan City University, Yiyang 413000, China<&wdkj&>Author to whom correspondence should be addressed.
关键词：
water yield services;InVEST;land use;land cover;Dongjiang Lake Basin
摘要：
Spatial and quantitative assessments of water yield services in watershed ecosystems are necessary for water resource management and improved water ecological protection. In this study, we used the InVEST model to estimate regional water yield in the Dongjiang Lake Basin in China. Moreover, we designed six scenarios to explore the impacts of climate and land use/land cover (LULC) changes on regional water yield and quantitatively determined the dominant mechanisms of water yield services. The results are expected to provide an important theoretical reference for future spatial planning and improvements of ecological service functions at the water source site. We found that (1) under the time series analysis, the water yield changes of the Dongjiang Lake Basin showed an initial decrease followed by an increase. Spatially, water yield also decreased from the lake area to the surrounding region. (2) Climate change exerted a more significant impact on water yield changes, contributing more than 98.26% to the water yield variability in the basin. In contrast, LULC had a much smaller influence, contributing only 1.74 %. (3) The spatial distribution pattern of water yield services in the watershed was more vulnerable to LULC changes. In particular, the expansion of built-up land is expected to increase the depth of regional water yield and alter its distribution, but it also increases the risk of waterlogging. Therefore, future development in the basin must consider the protection of ecological spaces and maintain the stability of the regional water yield function.
作者机构：
[Mo, Ping; Zhao, Yunlin; Xu, Zhenggang; Fan, Li] Cent South Univ Forestry & Technol, Hunan Res Ctr Engn Technol Utilizat Environm & Re, Changsha 410004, Peoples R China.;[Yang, Guiyan; Fan, Li] Minist Agr & Rural Affairs, Key Lab Microbial Resources Collect & Preservat, Beijing 100081, Peoples R China.;[Zhao, Weiping] Hunan Agr Univ, Sch Business, Changsha 410128, Peoples R China.;[Xu, Zhenggang; Feng, Wendan; Yang, Guiyan] Northwest A&F Univ, Coll Forestry, Key Lab Natl Forestry & Grassland Adm Management, Xianyang 712100, Peoples R China.;[Mo, Ping] Hunan Univ Arts & Sci, Coll Life & Environm Sci, Changde 415000, Peoples R China.
通讯机构：
[Xu, Zhenggang] C;[Xu, Zhenggang] N;Cent South Univ Forestry & Technol, Hunan Res Ctr Engn Technol Utilizat Environm & Re, Changsha 410004, Peoples R China.;Northwest A&F Univ, Coll Forestry, Key Lab Natl Forestry & Grassland Adm Management, Xianyang 712100, Peoples R China.
关键词：
microbial diversity;bacterial community structure;illumina MiSeq sequencing;mining area soil
摘要：
Soil microorganisms play an important role in regulating a variety of ecological functions. In recent years, the research on ecological restoration after mining has made people more aware of the importance of microbial diversity to ecosystem restoration. The present study investigated the effect of ecological restoration on microbial community structure and its relationship with soil physicochemical properties in the Dabaoshan mining area, China. High throughput sequencing technology was used to analyze and compare the microbial community composition of three types of soil (undamaged area, unrestoration area, and ecological restoration area). The contents of organic carbon, total nitrogen, and total phosphorus were 2.38-12.97 g/kg, 0.39-1.62 g/kg, and 0.99-1.51 g/kg, respectively. In different soil states, undamaged area and ecological restoration area were significantly higher than those in unrestoration area. The results showed that the structure of soil microbial community was significantly correlated with soil physicochemical properties, and formations in the repaired and unrepaired soils were different. Operational Taxonomic Unit (OTU) cluster analysis and diversity index analysis showed that soil microbial community changed at phylum and genus levels. The results showed that at the phylum level, all soil samples contained Firmicutes, Proteobacteria, and actinobacteria. Firmicutes and Proteobacteria of the ecological restoration area (ER1, ER2) were the highest in relative abundance compared with other samples, accounting for more than 45%. Proteobacteria and Acidobacteria were the dominant phylum in the undamaged area (UD), accounting for 32.7% and 22.3%, respectively. It can be seen that soil restoration produced a new dominant population, and Proteobacteria showed an absolute competitive advantage in the mining soil.
