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Health Risk Assessment of Employees Exposed to Chlorination By-products of Recreational Water in Large Amusement Parks in Shanghai

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Biomedical and Environmental Sciences 2024年第8期37卷 865-875页

作者： Weizhao Cao Yiming Zheng Wenxuan Zhao Lisha Shi Yunhui Zhang Lijun Zhang Jian Chen Key Lab of Health Technology Assessment National Health Commission of the People’s Republic of China(Fudan University)Shanghai 200032China Key Laboratory of Public Health Safety Ministry of EducationSchool of Public HealthFudan UniversityShanghai 200032China division of Public Health service and Safety Assessment Shanghai Municipal Center for Disease Control and PreventionShanghai 200336China Shanghai Institute of Preventive Medicine Shanghai 200336China

Objective Chlorination is often used to disinfect recreational water in large amusement parks;however,the health hazards of chlorination disinfection by-products(DBPs)to occupational populations are *** study aimed to assess the exposure status of chlorinated DBPs in recreational water and the health risks to employees of large amusement *** Exposure parameters of employees of three large amusement parks in Shanghai were investigated using a *** typical chlorinated DBPs in recreational water and spray samples were quantified by gas chromatography,and the health risks to amusement park employees exposed to chlorinated DBPs were evaluated according to the WHO's risk assessment *** Trichloroacetic acid,dibromochloromethane,bromodichloromethane,and dichloroacetic acid were detected predominantly in recreational *** carcinogenic and non-carcinogenic risks of the five DBPs did not exceed the risk *** addition,the carcinogenic and non-carcinogenic risks of mixed exposure to DBPs were within the acceptable risk *** Typical DBPs were widely detected in recreational water collected from three large amusement parks in Shanghai;however,the health risks of DBPs and their mixtures were within acceptable limits.

关键词： Risk assessment Water Environmental health Occupational exposure Chlorinated disinfection by-product

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Analyzing the spatiotemporal evolution and driving forces of gross ecosystem product in the upper reaches of the Chaobai River Basin

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Frontiers of Environmental Science & Engineering 2024年第8期18卷 117-132页

作者： Jiacheng Li Qi Han Liqiu Zhang Li Feng Guihuan Liu Beijing Key Laboratory for Source Control Technology of Water Pollution College of Environmental Science and EngineeringBeijing Forestry UniversityBeijing 100083China Engineering Research Center for Water Pollution Source Control&Eco-remediation College of Environmental Science and EngineeringBeijing Forestry UniversityBeijing 100083China Center of Eco-compensation Chinese Academy of Environmental PlanningMinistry of Ecology of EnvironmentBeijing 100041China

The Chaobai River Basin,which is a crucial ecological barrier and primary water source area within the Beijing-Tianjin-Hebei region,possesses substantial ecological *** gross ecosystem product(GEP)in the Chaobai River Basin is a reflection of ecosystem conditions and quantifies nature’s contributions to humanity,which provides a basis for basin ecosystem service management and *** study investigated the spatiotemporal evolution of GEP in the upper Chaobai River Basin and explored the driving factors influencing GEP spatial *** patterns from 2005 to 2020 were analyzed,and GEP was calculated for 2005,2010,2015,and *** driving factors influencing GEP spatial differentiation were identified using the optimal parameter-based geographical detector(OPGD)*** key findings are as follows:(1)From 2005 to 2020,the main ecosystem types were forest,grassland,and *** areas experienced significant changes,and conversions mainly occurred among urban,water,grassland and agricultural ecosystems.(2)Temporally,the GEP in the basin increased from 2005 to 2020,with regulation services *** the county(district)scale,GEP exhibited a north-west-high and south-east-low pattern,showing spatial differences between per-unit-area GEP and county(district)GEP,while the spatial variations in per capita GEP and county(district)GEP were similar.(3)Differences in the spatial distribution of GEP were influenced by regional natural geographical and socioeconomic *** these factors,gross domestic product,population density,and land-use degree density contributed *** among different driving forces noticeably impacted GEP spatial *** findings underscore the necessity of incorporating factors such as population density and the intensity of land-use development into ecosystem management decision-making processes in the upper reaches of the Chaobai River *** policies

关键词： Ecosystem pattern Gross ecosystem product(GEP) Spatiotemporal evolution Optimal parameter-based geographical detector(OPGD) Chaobai River Basin

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Diversity patterns and phylogenetic structure of vascular plants along elevational gradients in a mountain ecosystem, South Korea

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Journal of Mountain Science 2018年第2期15卷 280-295页

作者： CHUN Jung-Hwa LEE Chang-Bae division of forest Ecology National Institute of Forest Science Global Resources division Korea Forestry Promotion Institute

Recently, a phylogenetic diversity and community structure analysis as complementary to species-centric approaches in biodiversity studies provides new insights into the processes of community assembly. In this study, we analyzed species and phylogenetic diversity and community structures for woody and herbaceous plants along two elevational transects on Mt. Baekhwa, South Korea. The species richness and phylogenetic diversity of woody plants showed monotonic declining patterns with increasing elevation along all transects, whereas herbaceous plants showed different patterns, such as no relationship and a reversed unimodal pattern, between the study transects. The main drivers of these patterns were climate and habitat variables for woody and herbaceous plants, respectively. In addition, the phylogenetic community structure primarily showed phylogenetic clustering regulated by deterministic processes, especially environmental filtering, such as climate or habitat factors, along the two transects, although herbaceous plants along a transect depicted phylogenetic randomness as a result of a neutral process. Our findings suggest that deterministic and neutral processes may simultaneously control the community structures along small-scale elevational gradients such as local transects, although the deterministic process may be the predominant type.

关键词： Community structure Deterministicprocess Elevational gradient Neutral process Phylogenetic diversity Species richness

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Stand development patterns of forest cover types in the natural forests of northern Baekdudaegan in South Korea

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Journal of forestry Research 2015年第2期26卷 381-390页

作者： Ji Hong Kim Guangze Jin Sang Hoon Chung Department of forest Management College of Forest and Environmental SciencesKangwon National University School of forestry Northeast Forestry University forest Ecology division Forest Conservation DepartmentKorea Forest Research Institute

The purpose of this study was to classify current forest cover types,and to investigate stand development patterns for natural forests in six areas in northern Baekdudaegan,South ***-eight independent forest communities were aggregated into eight forest cover types by species composition in the overstory of each forest *** forest cover types were of mixed mesophytic,‘‘others’ ’ deciduous,Quercus mongolica dominant,*** pure,Pinus densiflora–***,***,Betula ermanii,and ***–*** ecological information was organized by importance value and species diversity for each forest *** on the correlation between species diversity index and the abundance of *** plus *** for corresponding forest cover types,we compared the developmental process and approximate successional pathway between each cover *** *** forest cover type changes into the ***–*** cover type,followed by the *** dominant cover type through continuous invasion of the oak ***,the *** pure cover type would spread toward the *** dominant cover type with a mixture of various deciduous tree *** *** dominant cover type progresses through the other deciduous cover types to the mixed mesophytic cover type with diversified composition and *** the mid to lower slopes,with loamy soils and good moisture conditions,various deciduous forest types should progress,by ecological succession,toward the mixed mesophytic cover type without any further disturbance.

关键词： Baekdudaegan forest cover type Species composition Species diversity Stand development patterns

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Taxonomic and community composition of epigeal arthropods in monoculture and mixed tree species plantations in a deciduous forest of Ghana

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Journal of forestry Research 2023年第3期34卷 641-653页

作者： Frederick Gyasi Damptey Emmanuel Opuni-Frimpong Collins Ayine Nsor James Addai Daniel Kwame Debrah Benjamin Schnerch Felicity Bentsi-Enchill Henn Korjus Department of Ecology Brandenburg University of Technology Cottbus-Senftenberg03046 CottbusGermany CSIR-forestry Research Institute of Ghana KumasiGhana School of Natural Resources University of Energy and Natural Resources(UENR)SunyaniGhana Department of forest Resources Technology Kwame Nkrumah University of Science and TechnologyKumasiGhana forest service division of the forestry commission Accra Department of Biology Education Faculty of Science EducationUniversity of EducationWinnebaGhana Institute of forestry and Rural Engineering Estonian University of Life SciencesTartuEstonia

Tropical forests provide several ecosystem services and functions and support approximately two-thirds of the world’s biodiversity but are seriously threatened by *** to counteract this menace have revolved around aff orestation with several or a single tree *** thus investigated how plantation forests with either a single or several tree species infl uenced arthropod taxonomic and community composition using pitfall traps to sample selected groups of epigeal arthropods(Araneae,Coleoptera,Orthoptera and Hymenoptera)and with environmental variables assessed *** results revealed 54 taxonomic groups with signifi cantly higher taxonomic richness,activity density,and diversity in the mixed stands than in the monoculture *** significant differences in community composition were mainly driven by families including Lycosidae,Formicidae,Staphylinidae,Scotylidae,Hydrophilidae,Gryllidae and Scarabaeidae and were explained by distinct habitat characteristics(canopy openness,litter depth,deadwood volume,and tree height).While the diverse tree communities and heterogeneous vegetation structure off ered food and habitat resources for diverse arthropod groups,the allelopathic nature coupled with homogenous stand characteristics of the Tectona grandis stands in the monoculture suppressed the growth of understorey vegetation that could otherwise serve as food and habitat resources for arthropods,which might have led to limited activities and diversity of arthropods in the monoculture plantation *** fi ndings thus highlight the need to promote mixed tree plantations in degraded tropical areas,especially when restoring biodiversity is the prime management focus.

关键词： Arthropod community forest plantations Structural complexity Tree diversity Tropical deforestation

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Monthly soil erosion monitoring based on remotely sensed biophysical parameters: a case study in Strymonas river basin towards a functional pan-European service

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International Journal of Digital Earth 2012年第6期5卷 461-487页

作者： Panos Panagos Christos G.Karydas Ioannis ZGitas Luca Montanarella Joint Research Centre of the European commission Institute for Environment and SustainabilityIspraItaly School of forestry and Natural Environment Laboratory of Forest Management and Remote SensingAristotle University of ThessalonikiThessalonikiGreece

Currently,many soil erosion studies at local,regional,national or continental scale use models based on the USLE-family *** of these models pay little attention to seasonal changes,despite evidence in the literature which suggests that erosion risk may change rapidly according to intra-annual rainfall figures and vegetation *** paper emphasises the aspect of seasonality in soil erosion mapping by using month-step rainfall erosivity data and biophysical time series data derived from *** latter,together with other existing pan-European geo-databases sets the basis for a functional pan-European service for soil erosion monitoring at a scale of 1:500,*** potential service has led to the establishment of a new modelling approach(called the G2 model)based on the inheritance of USLE-family *** G2 model proposes innovative techniques for the estimation of vegetation and protection *** model has been applied in a 14,500 km 2 study area in SE Europe covering a major part of the basin of the cross-border river,*** results were verified with erosion and sedimentation figures from previous *** study confirmed that monthly erosion mapping would identify the critical months and would allow erosion figures to be linked to specific land uses.

关键词： soil erosion biophysical parameters digital earth European geo-databases Strymonas/Struma Sobel filter

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Growth and yield of Solanum khasianum in Pinus roxburghii forest based silvi-medicinal system in mid hills of Indian Himalaya

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forest Ecosystems 2016年第4期3卷 320-328页

作者： Chandra Shekher Sanwal Raj Kumar Raheel Anwar Vijaysinha Kakade Sushma Kerketta S.D.Bhardwaj Indian forest service Uttarakhand Forest Department Haldwani Forest Division Haldwani 263139 Nainital Uttarakhand India ICAR-IISWC Research Center Vasad Anand 388306 Gujrat India Department of forestry and Natural Resources Punjab Agricultural University Ludhiana 141 004 India Department of Silviculture and Agroforestry Dr. Y. S. Parrnar University of Horticulture and Forestry Nauni Solan 173 032 Himachal Pradesh India

Background：In mid hills of Western Himalayas,Himachal Pradesh India,growth,yield and economics of Solanum khasianum as a potential medicinal herb under Pinus roxburghii（Chir pine） plantation has been studied for two consecutive years to assess the performance of Solanum khasianum in undercanopy of Pinus roxburghii for developing Solanum khasianum and Pinus roxburghii based innovative silvi-medicinal ***：Growth parameters such as plant height,number of branches per plant and leaf area index followed by yield were estimated after Solanum khasianum was grown on three topographical aspects as;Northern,North- western and Western at a spacing of 45 cm x 45 cm,followed by three tillage depths as;minimum（0 cm）,medium（up to 10 cm）and deep tillage（up to 15 cm）,in open and below canopy conditions *** study was conducted to explore the possibility of using Solanum khasianum based silvi-medicinal system to utilize the below canopy of Chir pine forest for enhancing the productivity of forests besides the conservation of the medicinal ***：The growth parameters such as plant height,number of branches per plant and leaf area index were nonsignificantly affected by topographical aspects and tillage practices,both below canopy and open conditions except fresh weight and dry weight of berries during harvesting *** maximum yield（0.61 t·ha^（-1）） was observed on Western aspect in open conditions as compared to below canopy of Chir *** highest gross returns were observed for the crop cultivated on Western aspect under deep tillage in open conditions than other aspect and tillage *** the positive net returns from the crops raised in below canopy of Chir pine indicates its possible economic viability under agroforestry system as the gross returns was higher than the cost of ***：Solanum khasianum when grown in below canopy of Pinus roxburghii,its growth and yield indicated positive net *** khasianum and P

关键词： Bio-economic evaluation Silvi-medicinal system Inter-specific competition Topographical aspect Tillage depth Leaf area index(LAI)

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Large-scale forest inventories of the United States and China reveal positive effects of biodiversity on productivity

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forest Ecosystems 2015年第4期2卷 272-287页

作者： James V Watson Jingjing Liang Patrick C Tobin Xiangdong Lei James S Rentch Catherine E Artis Davis College of Agriculture Natural Resources and DesignWest Virginia University forest service U.S.Department of AgricultureNorthern Research Station School of Environmental and forest Sciences University of Washington Research Institute of forest Resource Information Techniques Chinese Academy of Forestry

Background： With the loss of species worldwide due to anthropogenic factors, especially in forested ecosystems, it has become more urgent than ever to understand the biodiversity-ecosystem functioning relationship （BEFR）. BEFR research in forested ecosystems is very limited and thus studies that incorporate greater geographic coverage and structural complexity are needed. Methods： We compiled ground-measured data from approx, one half million forest inventory sample plots across the contiguous United States, Alaska, and northeastern China to map tree species richness, forest stocking, and productivity at a continental scale. Based on these data, we investigated the relationship between forest productivity and tree species diversity, using a multiple regression analysis and a non-parametric approach to account for spatial autocorrelation. Results： In general, forests in the eastern United States consisted of more tree species than any other regions in the country. The highest forest stocking values over the entire study area were concentrated in the western United States and Central Appalachia. Overall, 96.4 % of sample plots （477,281） showed a significant positive effect of species richness on site productivity, and only 3.6 % （17,349） had an insignificant or negative effect. Conclusions： The large number of ground-measured plots, as well as the magnitude of geographic scale, rendered overwhelming evidence in support of a positive BEFR. This empirical evidence provides insights to forest management and biological conservation across different types of forested ecosystems. forest timber productivity may be impaired by the loss of species in forests, and biological conservation, due to its potential benefits on maintaining species richness and productivity, can have profound impacts on the functioning and services of forested ecosystems.

关键词： Tree species diversity forest management Biological conservation Continental map of forest diversity Spatial autocorrelation Bootstrap

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A taxonomic review of the genus Miaenia Pascoe, 1864(Coleoptera: Cerambycidae) from South Korea with a new record of M. tonsa(Bates)

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Journal of forestry Research 2018年第3期29卷 822-829页

作者： Ik Je Choi Tae Sung Kwon Jongok Lim Silkworm and Insect Management Center Gyeongsangbuk-do Agricultural Resource Management Institute forest Insect Pests and Disease division Korea Forest Research Institute division of forest Biodiversity Korea National Arboretum

The cerambycid genus Miaenia Pascoe(Coleoptera: Cerambycoidea) of South Korea is taxonomically reviewed. Two species, Miaenia fasciata fasciata(Matsushita) and Miaenia maritima Tsherepanov have been recorded. In this paper, M. tonsa(Bates) is added to the Korean cerambycid fauna for the first time. A key to Korean Miaenia species, re-description and diagnostic illustrations, including male genitalia for each species, are provided.

关键词： Acanthocinini Cerambycidae Miaenia New species South Korea Taxonomy

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Comparison of litterfall production in three forest types in Jeju Island, South Korea

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Journal of forestry Research 2020年第3期31卷 945-952页

作者： Ji Young An Si Ho Han Woo Bin Youn Sang Ick Lee Afroja Rahman Huong Thi Thuy Dao Jeong Min Seo Aung Aung Hyung-Soon Choi Hwa Ja Hyun Byung Bae Park Department of Natural Resources Kyoto UniversityKyoto 606-8502Japan Department of Environment and forest Resources Chungnam National UniversityDaejeon 34134Republic of Korea forest Environment Conservation division Korea Forest ServiceDaejeon 35208Republic of Korea forest Conservation Department National Institute of Forest ScienceSeoul 02455Republic of Korea Warm Temperate and Subtropical forest Research Center National Institute of Forest ScienceSeogwipo 63582Republic of Korea

Litterfall, which is influenced by physical and biological factors, is a major pathway for carbon and nutrient cycling in forest ecosystems. The purpose of this study was to investigate monthly litterfall production in three forests in Jeju Island differentiated by forest composition and precipitation: Cheongsu(Quercus glauca as the dominant species;low precipitation), Seonheulb(Q. glauca as the dominant species;high precipitation), and Seonheulm(Q. glauca and Pinus thunbergii as the dominant species;high precipitation). Litterfall was collected monthly from April to December 2015 and divided into leaf litter, twig, bark, seeds, and unidentified *** patterns of litterfall production varied across stands according to their species composition. However,the amount of leaf litterfall and total litterfall were comparable among stands, ranging from 362 to 375 g m-2 for leaf litter and 524 g m-2 to 580 g m-2 for total *** leaf litter in May was the highest in all stands, while needle litter was the highest in December in *** twig litterfall in July may be attributable to high rainfall with strong winds and storms during the rainy season. Although forest type and climate factor had no influence on litterfall amounts in this study, the pattern of litterfall production was species dependent, suggesting diverse effects on carbon and nutrient cycling in these forests.

关键词： Coniferous forest Evergreen broadleaved forest Gotjawal Leaf litter Precipitation Temperature

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