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Assessment of ecological risks and spatiotemporal monitoring of heavy metal contamination in cultivated soils of the Liaohe River Basin, Jilin Province, China

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Science of the Total Environment 2025年 968卷 178870页

作者： Chen, Yanan Wang, Jie Pan, Dianqi Zhang, Yichen Zhang, Jiquan Zhang, Feng Lu, Zengkang College of Jilin Emergency Management Changchun Institute of Technology Changchun130012 China College of Surveying and Mapping Engineering Changchun Institute of Technology Changchun130021 China College of Graduate Studies Changchun Institute of Technology Changchun130012 China Institute of Natural Disaster Research School of Environment Northeast Normal University Changchun130024 China College of Resources and Environment Jilin Agricultural University Changchun130118 China

Ensuring the quality and safety of soil is crucial for achieving ecological sustainability. This study systematically analyzed and evaluated the ecological risks, early warning mechanisms, and mitigation strategies for heavy metals in the Liaohe River Basin of Jilin Province, employing methods such as multiple index models, environmental capacity prediction models, and spatiotemporal cube models. The results indicate that local soil heavy metals range from non-polluted to moderately polluted (0.5–1), with Cr, Cd, and Ni exhibiting relatively high risks. Early warning results reveal that Cr is in a state of low capacity (capacity index = 0.67), and the environmental capacity of soil heavy metals is projected to decline over the next 15 years. Notably, after 15 years, the environmental capacities of As and Cd are expected to decrease to 4.579 kg/hm2 and 0.198 kg/hm2, respectively. Based on the findings, systematic mitigation recommendations, including graded management and land-use optimization, were proposed. This not only provides insights into heavy metal research but also establishes a theoretical foundation for soil pollution management. © 2025

关键词： Abiotic

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Morphological and molecular identification of Neopestalotiopsis clavispora causing flower blight on Anthurium andraeanum in Thailand

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Horticultural Plant Journal 2021年第6期7卷 573-578页

作者： Wilailuck Daengsuwan Prisana Wonglom Siwaret Arikit Anurag Sunpapao Science Program in Plant Pathology Graduate SchoolPrince of Songkla UniversityHatyaiSongkhla 90110Thailand Agricultural Innovation and Management Division(Pest Management) Faculty of Natural ResourcesPrince of Songkla UniversityHatyaiSongkhla 90110Thailand Faculty of Technology and Community Development Thaksin UniversityPhatthalung CampusPhattalung 93110Thailand Rice Science Center Kasetsart University Kamphaeng Saen CampusNakhon Pathom73140Thailand Department of Agronomy Faculty of Agriculture at Kamphaeng SaenKasetsart University Kamphaeng Saen CampusNakhon Pathom 73140Thailand

Flower blight on anthurium(Anthurium andraeanum)was observed during August 2018 on an anthurium cultivation farm in the Songkhla Province of southern *** fungal isolate was identified as Neopestalotiopsis clavispora based on the morphology and DNA sequence of the internal transcribed spacer(ITS),translation elongation factor 1-α(tef1-α),andβ-tubulin(tub)*** phylogenetic tree,based on the combined sequences of ITS,tef1-α,and tub,confirmed this pathogen as *** of the species was confirmed according to Koch’s postulate:*** could infect *** the best of our knowledge,this is the first report of *** as a pathogen of anthurium.

关键词： Flamingo flower Morphology Molecular properties Neopestalotiopsis clavispora Pathogenicity test

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Capnesterones A and B, new steroids isolated from the soft coral Capnella imbricata

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Phytochemistry Letters 2024年 61卷 115-119页

作者： Cheng, Ting-Yu Yang, Chia-Jung Chen, Po-Jen Chen, Yu-Li Peng, Bo-Rong Kung, Te-An Wen, Zhi-Hong Lai, Kuei-Hung Chung, Hsu-Ming Department of Applied Chemistry National Pingtung University Pingtung 900393 Taiwan Clinical Immunology Laboratory Department of Medical Research E-Da Hospital I-Shou University Kaohsiung 824005 Taiwan Research Center for Chinese Herbal Medicine Graduate Institute of Healthy Industry Technology College of Human Ecology Chang Gung University of Science and Technology Taoyuan 33305 Taiwan Graduate Institute of Biomedical Sciences Graduate Institute of Natural Products College of Medicine Chang Gung University Taoyuan 33305 Taiwan Graduate Institute of Pharmacognosy College of Pharmacy Taipei Medical University Taipei 11031 Taiwan Institute of Food Safety Management National Pingtung University of Science and Technology Pingtung 91201 Taiwan Department of Marine Biotechnology and Resources National Sun Yat-sen University Kaohsiung 804201 Taiwan Institute of BioPharmaceutical Sciences National Sun Yat-sen University Kaohsiung 804201 Taiwan PhD Program in Clinical Drug Development of Herbal Medicine College of Pharmacy Taipei Medical University Taipei 11031 Taiwan Traditional Herbal Medicine Research Center Taipei Medical University Hospital Taipei 11031 Taiwan

Two new non-withanolidal steroids with a cross-conjugated dienone structural unit in ring A, capnesterones A (1) and B (2), were isolated from the soft coral Capnella imbricata in the southeast waters of Taiwan. The compounds' structures were elucidated through a comprehensive analysis of spectroscopic data, including IR, ESIMS, ¹H NMR, and ¹³C NMR, and through comparison with previous literature. At a concentration of 10 μM, steroids 1 and 2 exhibited reductions in iNOS levels (60 % and 82 %) compared to LPS-stimulated control cells, along with increased release (134 % and 110 %) against COX-2 protein expressions. © 2024 Phytochemical Society of Europe

关键词： Capnella imbricata COX-2 INOS Steroid

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The impact of copper oxide nanoparticles reinforced nanocellulose acetate membrane on antibacterial and dye removal Potency

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Results in engineering 2024年 23卷

作者： Yanuhar, Uun Suryanto, Heru Amin, Muhamad Maulana, Jibril Mohamad Lal, Mohammad Tamrin Caesar, Nico Rahman Study Program of Aquatic Resources Management Faculty of Fisheries and Marine Sciences Universitas Brawijaya East Java Indonesia Department of Mechanical and Industrial Engineering Faculty of Engineering Universitas Negeri Malang Jl. Semarang 5 Malang65145 Indonesia Department of Aquaculture Faculty of Fisheries and Marine Universitas Airlangga Jl. Dharmahusada Permai Surabaya60115 Indonesia Borneo Marine Research Institute Universiti Malaysia Sabah Jalan UMS Sabah Kota Kinabalu88400 Malaysia Doctoral Program of Environment Science Post Graduate Program Universitas Brawijaya Jalan Veteran East Java Malang65145 Indonesia

With the rapid growth of the textile, leather, cosmetics, and pharmaceutical industries, concerns about pollutants in these sectors, especially dye pollutants, are increasing. This research characterizes bacterial nanocellulose acetate membranes made from Sargassum extract reinforced with copper oxide nanoparticles and tests their antibacterial properties and dye removal in water. Sargassum sp. extract was fermented using Acetobacter xylinum for 10 days, producing bacterial nanocellulose, which was then esterified to create bacterial nanocellulose acetate. Copper oxide nanoparticles were added to the bacterial nanocellulose acetate solution in varying concentrations, cast, and oven-dried. The membrane was analyzed using Fourier-transform infrared spectroscopy, X-ray diffraction, scanning electron microscope, antibacterial activity, and dye removal. Results showed uniform copper oxide nanoparticles distribution on the membrane surface. Structure analysis revealed diffraction peaks at 35.44° and 38.57°, indicating a reduced crystalline index but improved membrane effectiveness. Antibacterial tests showed a zone of inhibition against bacterial growth, increasing with higher copper oxide nanoparticle content. The addition of copper oxide nanoparticles also influenced the dye removal capacity for Metanil Yellow, Congo Red, Eosin Yellow, Methylene Blue, and Malachite Green. The kinetic analysis showed that the adsorption process follows a pseudo-first-order model, with higher correlation coefficients (R2) compared to the pseudo-second-order model. © 2024 The Author(s)

关键词： Fourier transform infrared spectroscopy

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Educational Tourism Potentials of Argapura Village, Bogor Regency towards Pongkor UNESCO Global Geopark 4

Educational Tourism Potentials of Argapura Village, Bogor Re...

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4th International Symposium of Sustainable Landscape Development, ISSLD 2019

作者： Setianata, A.A. Aidi, M.N. Gunawan, A. Study Program Natural Resources and Environmental Management Science Graduate School IPB University Indonesia Department of Statistics IPB University Indonesia Department of Landscape Architecture IPB University Indonesia

Argapura is one of the village areas in Cigudeg Subdistrict which has potential unique characteristics for a tourist destination, namely Geopark. Argapura Village is one of the Pongkor National Geopark development villages covering 15 sub-districts in Bogor Regency. Pongkor National Geopark is a unitary space with geodiversity, culturediversity and biodiversity which aims to preserve and protect the wealth of natural resources. The geopark is located very close to tourism activities, but the existing tour has not specifically touched the educational aspect (educational tourism). Educational tourism is a tourism packaging program that is loaded with educational values in each of its activities. Argapura Village needs to be developed educational tourism aimed at all visitors. The objectives of this study were to identify and analyze the potential of educational tourism objects in Argapura Village, and to arrange educational tourism program in Argapura Village. Data collection through literature studies, field surveys and interviews with stakeholders. Data analysis using tables and described based on the criteria of educational values and geopark elements. The results of study showed that Argapura Village has two main potential attractions/educational tourism objects, namely Angklung Gubrag and Gudawang Caves. Angklung Gubrag is an educational tourism attraction that has high cultural, historical and religious values. Gudawang Cave is an educational tourism object in the form of karst ecosystem. In addition to the both of tourism objects, there are several other potential tourism objects and characteristics of the Geopark. The Argapura Village educational tourism was compiled includes two main programs, namely the half-day and the full-day visiting programs. © Published under licence by IOP Publishing Ltd.

关键词： Biodiversity

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Challenges and Prospects of Multilayer Plastic Waste management in Several Countries: A Systematic Literature Review

SSRN

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SSRN 2024年

作者： Anwar, Mayrianti Annisa Suprihatin, Suprihatin Sasongko, Nugroho Adi Najib, Mukhamad Pranoto, Bono Prof BJ Habibie Complex Area Banten15314 Indonesia Natural Resources and Environmental Management Graduate Study Program IPB University IPB Baranangsiang Campus Jl. Pajajaran Bogor16144 Indonesia Kampus IPB Darmaga P.O. Box 220 Bogor Indonesia IPSC Sentul Area West Java16810 Indonesia Faculty of Economics and Management Jl. Agatis Kampus IPB Darmaga-Bogor West Java16680 Indonesia Research Center for Limnology and Water Resources National Research and Innovation Agency Bogor Indonesia

Multilayer plastic waste, is a complex structure and widespread use in packaging need to adopting circular economy principles and advanced recycling technologies to mitigate the environmental impact of these plastics. Several key strategies, including the development of innovative recycling methods, the promotion of sustainable packaging, and the implementation of extended producer responsibility (EPR) programs. It also emphasizes the need for collaborative efforts among governments, industries, and the public to enhance recycling efficiency and reduce plastic waste. Recommendations for integrating advanced sorting technologies, chemical recycling methods, and public awareness campaigns to foster a more sustainable approach to plastic waste management globally. © 2024, The Authors. All rights reserved.

关键词： Waste management

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Assessments of moisture damage resistance of asphalt concrete mixtures and asphalt mastic with various mineral fillers

Transportation Engineering

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Transportation engineering 2022年 7卷

作者： Kumlai, Sarayoot Jitsangiam, Peerapong Nikraz, Hamid Graduate Program in Civil Engineering Department of Civil Engineering Chiang Mai University Faculty of Engineering Huay Kaew Road Mueang Chiang Mai50200 Thailand Center of Excellence in Natural Disaster Management Department of Civil Engineering Chiang Mai University Faculty of Engineering Huay Kaew Road Mueang Chiang Mai50200 Thailand Department of Civil Engineering Curtin University BentleyWA6102 Australia

Resistance to moisture damage is crucial for asphalt concrete. Fine-particle mineral fillers have been used to leverage such resistance. This study examines the effects of different types of mineral fillers on the rheology and resistance to moisture damage of asphalt binders and asphalt concrete mixtures. These mineral fillers, namely baghouse dust, lime kiln dust, and hydrated lime, were targeted in this study. These fillers were added to two types of asphalt binders during the initial stage to examine their effects on the rheology of the binders with dynamic shear modulus tests. The effects of the fillers on affinity were evaluated through rolling bottle tests. It was found that mineral fillers can stiffen asphalt binder/mastic, thus providing a higher dynamic shear modulus and better affinity and moisture resistance in terms of a higher percentage of asphalt binder coverage. The properties of asphalt materials were influenced more by filler type than binder type. Hydrated lime provided superior results compared to the others. Consequently, the hydrated lime was used to examine the moisture resistance in the mixture scale in the final stage. It was found that the stiffening behavior can be attributed to the moisture resistance properties in the binder/mastic scale. © 2022 The Author(s)

关键词： Fillers

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Effect of Edible Film Nano-Biocomposite Packaging and Storage Temperature on the Store Quality of Strawberry (Fragaria X Ananassa ***)

SSRN

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SSRN 2023年

作者： Aprilia, Sri Ratna Arahman, Nasrul Munawar, Agus Arip Department of Agricultural Engineering Universitas Syiah Kuala Darussalam Banda Aceh23111 Indonesia Doctoral Program School of Engineering Post Graduate Program Universitas Syiah Kuala Darussalam Banda Aceh23111 Indonesia Department of Chemical Engineering Universitas Syiah Kuala Darussalam Banda Aceh23111 Indonesia Graduate School of Environmental Management Universitas Syiah Kuala Darussalam Banda Aceh23111 Indonesia Research Center for Environmental and Natural Resources Universitas Syiah Kuala Jl. Hamzah Fansuri No. 4 Darussalam Banda Aceh23111 Indonesia Atsiri Research Center Universitas Syiah Kuala Jl. Syeh A. Rauf Darussalam Banda Aceh23111 Indonesia

An edible film is a type of bioplastic packaging that can be used to package strawberries. Therefore, this study aimed to determine the packaging effect using nanobiocomposite edible film based on gelatin/nanocrystalline cellulose with the addition of antioxidants nanopropolis and storage temperature on the quality and shelf life of strawberries. The strawberries fruit were packed with edible film nanobiocomposite and stored at 5°C, 10°C, and 30°C. The parameters analyzed were water content, Vitamin C, hardness, total dissolved solids, pH, and shelf life. The results showed that the water content ranged from 23.95 to 65.89%w/b at the end of the storage period and was stable at 5°C and 10°C. Furthermore, hardness at the end of storage ranged from 0.265 to 0.431 kg/cm2 and all treatments experienced a decrease in Vitamin C content during storage. The total dissolved solids content at the end of storage was 5.92-12%Brix, with a shelf life ranging from 3-21 days of storage, as determined by all treatment parameters. These results showed that bionanocomposite edible film packaging can increase the shelf life of strawberries. © 2023, The Authors. All rights reserved.

关键词： Food storage

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The Petiole of the Miriti Palm: A sustainable material for wind turbine blades?

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Journal of Physics: Conference Series 2024年第8期2767卷 082007-082007页

作者： I. Dos S. Gomes J. R. P. Vaz J. C. H. Wong D. H. Wood Graduate Program in Natural Resources Engineering Institute of Technology Federal University of Para Belém Pará 66075-110 Brazil Graduate Program in Natural Resources Engineering Institute of Technology Federal University of Para Ananindeua Pará 67130-660 Brazil Department of Mechanical and Manufacturing Engineering University of Calgary Calgary Alberta T2N 1N4 Canada

The Miriti Palm (Mauritia flexuosa) grows abundantly in the Amazon Region of Brazil. The petiole (PMP) that supports the leaves, has a density of about one-half of Balsa wood (BW), which is used in the manufacture of wind turbine blades. A further possible advantage of PMP is that harvesting does not kill the palm tree, in contrast to the harvesting of BW. Because the mechanical properties of PMP have not been measured, we determined the shear and tensile properties of 16 samples of PMP and BW to allow a preliminary assessment of PMP as a possible material for blades. The absolute shear and tensile strengths for BW are higher, but specific properties (normalized by the density) are similar and can favour PMP. Direct substitution of BW by PMP would reduce the weight of a typical large blade by around 2%.

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Characteristics and community perception on mitigation of Human-Tapanuli Orangutans conflict around Dolok Sipirok natural Reserve, South Tapanuli 2

Characteristics and community perception on mitigation of Hu...

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2nd International Conference on natural resources and Technology, ICONART 2020

作者： Kuswanda, W. Harahap, R.H. Alikodra, H.S. Sibarani, R. Post-Graduate in Program of Environmental and Natural Resources Management Universitas Sumatera Utara Medan Indonesia Faculty of Social and Political Science University of Sumatera Utara Medan Indonesia Faculty of Forestry Bogor Agricultural University Bogor Indonesia Faculty of Cultural Science University of Sumatera Utara Medan Indonesia Environmental and Forestry Research and Development Institute of Aek Nauli Simalungun Indonesia

The frequency of human-tapanuli orangutan (Pongo tapanuliensis) conflict has been increased with the widespread on degradation and fragmentation at Batangtoru Forest, South Tapanuli Regency. Orangutans often come on community lands to look for food, especially while the durian fruit season. This study aims to obtain information on socio-economic characteristics and public perception index to mitigate on human-tapanuli orangutan conflict around the Dolok Sipirok Nature Reserve, South Tapanuli Regency. Data was collected using a questionnaire distribution, interviews and descriptive observations, starting from October 2019 to January 2020. Respondents were selected by purposively sampling method, i.e. people had met and interacted with orangutans as many as 61 respondents from three villages. Data analyzed using frequency tables, likers scale and spearman rank correlation. The results showed that the community is Muslim majority, productive age, education below senior high school, farmers and income below IDR. 4,000,000. The public perception has declared orangutans as animals that consume community plants. They will drive away the orangutans found in processed land. The perception of conflict mitigation has strongly agreed with the program that must be done including providing compensation for losses, increasing patrol programs, developing local wisdom and building corridors in state forests. The characteristics were a significant (a © Published under licence by IOP Publishing Ltd.

关键词： Digital storage

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