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Implicit Heaviside filter with high continuity based on suitably graded THB splines
Frontiers of Mechanical Engineering 2022, Volume 17, Issue 1, Pages 14-14 doi: 10.1007/s11465-021-0670-2
Keywords： topology optimization truncated hierarchical B-spline isogeometric analysis black and white designs
Extraction of silica and alumina from fly ash
Jing Fu,Yi Maosen,Zhang Zhongwen and Rao Shuanmin
Strategic Study of CAE 2012, Volume 14, Issue 2, Pages 96-106
Keywords： fly ash white carbon black alumina comprehensive utilization
CROP DIVERSITY AND SUSTAINABLE AGRICULTURE: MECHANISMS, DESIGNS AND APPLICATIONS
Frontiers of Agricultural Science and Engineering 2021, Volume 8, Issue 3, Pages 359-361 doi: 10.15302/J-FASE -2021417
Intensive monoculture agriculture has contributed greatly to global food supply over many decades, but the excessive use of agricultural chemicals (fertilizers, herbicides and pesticides) and intensive cultivation systems has resulted in negative side effects, such as soil erosion, soil degradation, and non-point source pollution[1]. To many observers, agriculture looms as a major global threat to nature conservation and biodiversity. As noted in the Global Biodiversity Outlook 4[2], the drivers associated with food systems and agriculture account for around 70% and 50% of the projected losses by 2050 of terrestrial and freshwater biodiversity, respectively[3].
In addition, agricultural development and modernization of agriculture has led to a decline in the total number of plant species upon which humans depend for food[4]. Currently, fewer than 200 of some 6000 plant species grown for food contribute substantially to global food output, and only nine species account for 67% of total crop production[3]. The global crop diversity has declined in past decades.
Crop species diversity at a national scale was identified as one of the most important factors that stabilize grain production at a national level[5]. A group of long-term field experiments demonstrated that crop diversity also stabilizes temporal grain productivity at field level[6]. Therefore, maintaining crop diversity at both national and field levels is of considerable importance for food security at national and global scales.
Crop diversity includes temporal (crop rotation) and spatial diversity (e.g., intercropping, agroforestry, cultivar mixtures and cover crops) at field scale. Compared to intensive monocultures, diversified cropping systems provide additional options to support multiple ecosystem functions. For instance, crop diversity may increase above- and belowground biodiversity, improve yield stability, reduce pest and disease damage, reduce uses of chemicals, increase the efficiency of the use land, light water and nutrient resources, and enhance stress resilience in agricultural systems.
To highlight advances in research and use of crop diversity, from developing and developed countries, we have prepared this special issue on “Crop Diversity and Sustainable Agriculture” for Frontiers of Agricultural Sciences and Engineering, mainly focusing on intercropping.
Intercropping, growing at least two crops at the same time as a mixture, for example, in alternate rows or strips, is one effective pathway for increasing crop diversity at the field scale. Over recent decades, there have been substantial advances in terms of understanding of processes between intercropped species and applications in practice. There are 10 articles in this special issue including letters, opinions, review and research articles with contributions from Belgium, China, Denmark, France, Germany, Greece, Italy, the Netherlands, Spain, Switzerlands, UK, and Mexico etc.
The contributors are internationally-active scientists and agronomists contributing to intercropping research and extension. For example, Antoine Messean is coordinator of the EU H2020 Research project DiverIMPACTS “Diversification through rotation, intercropping, multiple cropping, promoted with actors and value chains towards sustainability”. Eric Justes is coordinator of the EU H2020 Research project ReMIX “Redesigning European cropping systems based on species mixtures”. Maria Finckh has worked on crop cultivar mixture and organic agriculture over many years. Henrik Hauggaard-Nielsen has outstanding expertise in intercropping research and applications, moving from detailed studies on species interactions in intercropping to working with farmers and other stakeholders to make intercropping work in practical farming. In addition to these established scientists, young scientists who have taken an interest in intercropping also contribute to the special issue, including Wen-Feng Cong, Yixiang Liu, Qi Wang, Hao Yang and others.
The first contribution to this special issue addresses how to design cropping systems to reach crop diversification, with Wen-Feng Cong and coworkers ( https://doi.org/10.15302/J-FASE-2021392) considering that it is necessary to optimize existing and/or design novel cropping systems based on farming practices and ecological principles, and to strengthen targeted ecosystem services to achieve identified objectives. In addition, the design should consider regional characteristics with the concurrent objectives of safe, nutritious food production and environmental protection.
The benefits of crop diversification have been demonstrated in many studies. Wen-Feng Cong and coworkers describe the benefits of crop diversification at three scales: field, farm, and landscape. Hao Yang and coauthors reviewed the multiple functions of intercropping. Intercropping enhances crop productivity and its stability, it promotes efficient use of resources and saves mineral fertilizer, controls pests and diseases of crops and reduces the use of pesticides. It mitigates climate change by sequestering carbon in soil, reduces non-point source pollution, and increases above- and belowground biodiversity of other taxa at field scale ( https://doi.org/10.15302/J-FASE-2021398).
Eric Justes and coworkers proposed the “4C” framework to help understand the role of species interactions in intercropping ( https://doi.org/10.15302/J-FASE-2021414). The four components are competition, complementary, cooperation (facilitation) and compensation, which work often simultaneously in intercropping. Hao Yang and coworkers used the concept of diversity effect from ecology to understand the contribution of complementarity and selection effects to enhanced productivity in intercropping. The complementarity effect consists of interspecific facilitation and niche differentiation between crop species, whereas the selection effect is mainly derived from competitive processes between species such that one species dominates the other ( https://doi.org/10.15302/J-FASE-2021398). Also, Luis Garcia-Barrios and Yanus A. Dechnik-Vazquez dissected the ecological concept of the complementarity and selection effects to develop a relative multicrop resistance index to analyze the relation between higher multicrop yield and land use efficiency and the different ecological causes of overyielding under two contrasting water stress regimes ( https://doi.org/10.15302/J-FASE-2021412).
Odette Denise Weedon and Maria Renate Finckh found that composite cross populations, with different disease susceptibilities of three winter wheat cultivars, were moderately resistant to brown rust and even to the newly emerged stripe rust races prevalent in Europe since 2011, but performance varied between standard and organic management contexts ( https://doi.org/10.15302/J-FASE-2021394).
Comparing the performance of intercrops and sole crops is critical to make a sound evaluation of the benefits of intercropping and assess interactions between species choice, intercrop design, intercrop management and factors related to the production situation and pedoclimatic context. Wopke van der Werf and coworkers review some of the metrics that could be used in the quantitative synthesis of literature data on intercropping ( https://doi.org/10.15302/J-FASE-2021413).
Interspecific interactions provide some of the advantages of intercropping, and can be divided into above- and belowground interactions. Aboveground interactions can include light and space competition, which is influenced by crop species traits. Root exudates are also important in interspecific interactions between intercropped or rotated species. Qi Wang and coworkers estimated the light interception of growth stage of maize-peanut intercropping and corresponding monocultures, and found that intercropping has higher light interception than monoculture, and increasing plant density did not further increase light interception of intercropping ( https://doi.org/10.15302/J-FASE-2021403). Yuxin Yang and coworkers reported that the root exudates of fennel (Foeniculum vulgare) can reduce infection of tobacco by Phytophthora nicotianae via inhibiting the motility and germination of the spores of the pathogen ( https://doi.org/10.15302/J-FASE-2021399).
Focusing on the application of intercropping, Wen-Feng Cong and coworkers formulated species recommendations for different regions of China for different crop diversity patterns and crop species combinations. These authors also suggested three steps for implementing crop diversification on the North China Plain. Although there are multiple benefits of crop diversification, its extension and application are hindered by various technical, organizational, and institutional barriers along value chains, especially in Europe. Based on the findings of the European Crop Diversification Cluster projects, Antoine Messéan and coworkers suggested that there needs to be more coordination and cooperation between agrifood system stakeholders, and establish multiactor networks, toward an agroecological transition of European agriculture ( https://doi.org/10.15302/J-FASE-2021406). In addition, Henrik Hauggaard-Nielsen and coworkers report the outcomes of a workshop for participatory research to overcome the barriers to enhanced coordination and networking between stakeholders ( https://doi.org/10.15302/J-FASE-2021416).
Intercropping, though highly effective in labor-intensive agriculture, may be difficult to implement in machine-intensive, large-scale modern agriculture because appropriate large equipment is not commercially available for planting and harvesting various crop mixtures grown with strip intercropping[6]. Thus, the appropriate machinery will need to be developed for further practical application in large-scale agriculture.
As the guest editors, we thank all the authors and reviewers for their great contributions to this special issue on “Crop Diversity and Sustainable Agriculture”. We also thank the FASE editorial team for their kind supports.
Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 5, doi: 10.1007/s11783-020-1372-4
• The MCNZVI is prepared as an interesting material for PS activation.
Keywords： MCNZVI Core-shell structure Reactive Black 5 Persulfate Mechanism
Loss of monocarboxylate transporter 1 aggravates white matter injury after experimental subarachnoid
Frontiers of Medicine 2021, Volume 15, Issue 6, Pages 887-902 doi: 10.1007/s11684-021-0879-9
Keywords： microRNAs monocarboxylate transporter 1 motor training subarachnoid hemorrhage white matter injury
Suchera LOYPRASERT-THANANIMIT, Akrapon SALEEDANG, Proespichaya KANATHARANA, Panote THAVARUNGKUL, Wilaiwan CHOTIGEAT
Frontiers of Chemical Science and Engineering 2012, Volume 6, Issue 2, Pages 216-223 doi: 10.1007/s11705-012-1289-y
Keywords： recombinant protein polyclonal antibody label-free biosensor impedance white spot syndrome virus (WSSV
Optimization of spatial structure designs of control rod using Monte Carlo code RMC
Frontiers in Energy 2021, Volume 15, Issue 4, Pages 974-983 doi: 10.1007/s11708-021-0769-5
Keywords： control rod optimized spatial structure neutronic performance burnup stability
Yulin LI,Deping HAN,Junying LI,Dawn KOLTES,Xuemei DENG
Frontiers of Agricultural Science and Engineering 2014, Volume 1, Issue 4, Pages 299-306 doi: 10.15302/J-FASE-2014040
Keywords： Silky Fowl White Leghorn melanoblast migration gene expression
A Real-time Monitoring Network and Fault Diagnosis Expert System for Compressors and Pumps
Gao Jinji
Strategic Study of CAE 2001, Volume 3, Issue 9, Pages 41-47
Keywords： engineering real-time monitoring network artificial intelligent diagnosis first reason analysis method black-gray-white
Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 12, doi: 10.1007/s11783-022-1585-9
● The physicochemical and structural properties of DBC were characterized.
Keywords： Dissolved black carbon (DBC) Chlorine Chloramine Disinfection by-products (DBPs) Disinfection by-products
Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 6, Pages 704-715 doi: 10.1007/s11705-022-2270-z
Keywords： bio-based multifunction colorimetric indicator active and intelligent packaging
Property-performance relationship of core-shell structured black TiO photocatalyst for environmental
Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 9, doi: 10.1007/s11783-023-1711-3
● Properties and performance relationship of CSBT photocatalyst were investigated.
Keywords： Black TiO2 Core-shell structure Property-performance relationship Agro-industrial effluent
Min-Ho CHEY, Jae-Ung KIM
Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 3, Pages 267-280 doi: 10.1007/s11709-012-0170-x
Keywords： tuned mass damper parametric optimization passive control white noise earthquake excitation
Chunhong Chen, Hong Liang, Dawen Gao
Frontiers of Environmental Science & Engineering 2019, Volume 13, Issue 4, doi: 10.1007/s11783-019-1146-z
AOA amoA genes in the soils of the two wetlands affiliated with three lineages. The main drivers of AOA community were pH and total organic carbon and ammonium. The soil characteristics rather than the vegetation control the AOA community.
Keywords： Ammonia-oxidizing archaea amoA gene Freshwater marsh Diversity Distribution
Contribution of black carbon to nonlinearity of sorption and desorption of acetochlor on sediment
Jianqiu LIU, Yaobin ZHANG, Hong CHEN, Yazhi ZHAO, Xie QUAN
Frontiers of Environmental Science & Engineering 2009, Volume 3, Issue 1, Pages 69-74 doi: 10.1007/s11783-008-0076-y
Keywords： black carbon (BC) sorption desorption sediment
Title Author Date Type Operation
Extraction of silica and alumina from fly ash
Jing Fu,Yi Maosen,Zhang Zhongwen and Rao Shuanmin
Journal Article
Preparation of nZVI embedded modified mesoporous carbon for catalytic persulfate to degradation of reactive black
Journal Article
Loss of monocarboxylate transporter 1 aggravates white matter injury after experimental subarachnoid
Journal Article
Production of a polyclonal antibody to the VP26 nucleocapsid protein of white spot syndrome virus (wssv
Suchera LOYPRASERT-THANANIMIT, Akrapon SALEEDANG, Proespichaya KANATHARANA, Panote THAVARUNGKUL, Wilaiwan CHOTIGEAT
Journal Article
A microarray study of altered gene expression during melanoblasts migration in normal pigmented White
Yulin LI,Deping HAN,Junying LI,Dawn KOLTES,Xuemei DENG
Journal Article
A Real-time Monitoring Network and Fault Diagnosis Expert System for Compressors and Pumps
Gao Jinji
Journal Article
Characteristics of typical dissolved black carbons and their influence on the formation of disinfection
Journal Article
oxide for active and intelligent packaging: comparison of anthocyanins source from purple tomato or black
Journal Article
Property-performance relationship of core-shell structured black TiO photocatalyst for environmental
Journal Article
control of structural responses using an optimal passive tuned mass damper under stationary Gaussian white
Min-Ho CHEY, Jae-Ung KIM
Journal Article
Community diversity and distribution of ammonia-oxidizing archaea in marsh wetlands in the black soil
Chunhong Chen, Hong Liang, Dawen Gao
Journal Article
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