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Complex causes and consequences of rangeland greening in South America -multiple interacting natural and anthropogenic drivers and simultaneous ecosystem degradation and recovery trends

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Geography and Sustainability 2020年第4期1卷 304-316页

作者： Wang Li Robert Buitenwerf renata nicora chequín Javier Elias Florentín Roberto Manuel Salas Julia Carolina Mata Li Wang Zheng niu Jens-Christian Svenning Center for Biodiversity Dynamics in a Changing World(BIOCHAnGE) Aarhus UniversityNy Munkegade 114Aarhus C 8000Denmark Section for Ecoinformatics and Biodiversity Department of BiologyAarhus UniversityNy Munkegade 114Aarhus C 8000Denmark State Key Laboratory of Remote Sensing Science Aerospace Information Research InstituteChinese Academy of SciencesBeijing 100101China Instituto de Botánica del nordeste(COnICET-UnnE) Sargento Cabral 2131c.c.209C.P.3400Argentina University of Chinese Academy of Sciences Beijing 100049China

Land-surface greening has been reported globally over the past *** often seen to represent ecosystem recovery,the impacts on biodiversity and society can also be *** has been widely reported from rangelands,where drivers and processes are complex due to its high environmental heterogeneity and societal ***,we assess the complexity behind greening and assess its links to various drivers in an iconic,heterogeneous rangeland area,the IberáWetlands and surroundings,in ***-series satellite imagery over the past 19 years showed overall net greening,but also substantial local browning both in protected and unprotected areas,linking to land use,temporal changes in surface water,fire,and *** found substantial woody expansion mainly in the unprotected land,with 37%contributed by tree plantations and the remaining 63%by spontaneous woody expansion,along with widespread transitions from terrestrial land to seasonal surface *** occurrences tended to reduce greening with unprotected areas experiencing widespread and frequent ***,protected areas had more browning in unburnt areas than burned *** variation in annual precipitation and temperature tended to nonlinearly influence fire occurrences with an interplay of human fire management,further shaping the vegetation greening,pointing to high complexity behind the observed rangeland greening involving interactions among local *** findings highlight that the observed overall greening is an outcome of multiple trends with clear negative impacts on biodiversity and the local livestock-oriented culture(notably expanding tree plantations)and spontaneous vegetation dynamics,partly involving spontaneous woody *** latter has positive potential for biodiversity and ecosystem services in terms of woodland recovery,but can become negative in such a natural savanna region if expansions develop on a too broad scale,highlighting the importance of ensu

关键词： South America Rangeland Vegetation greening Climate change Sustainability Remote sensing

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Elucidating regulatory processes of intense physical activity by multi-omics analysis

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Military Medical Research 2024年第4期11卷 479-499页

作者： Ernesto S.nakayasu Marina A.Gritsenko Young-Mo Kim Jennifer E.Kyle Kelly G.Stratton Carrie D.nicora nathalie Munoz Kathleen M.navarro Daniel Claborne Yuqian Gao Karl K.Weitz Vanessa L.Paurus Kent J.Bloodsworth Kelsey A.Allen Lisa M.Bramer Fernando Montes Kathleen A.Clark Grant Tietje Justin Teeguarden Kristin E.Burnum-Johnson Biological Sciences Division Pacific Northwest National LaboratoryRichlandWA 99352USA Environmental and Molecular Sciences Division Pacific Northwest National LaboratoryRichlandWA 99352USA Centers for Disease Control and Prevention National Institute for Occupational Safety and HealthWestern States DivisionDenverCO 80204USA Computational Analytics Division Pacific Northwest National LaboratoryRichlandWA 99352USA national Security Directorate Pacific Northwest National LaboratoryRichlandWA 99352USA Los Angeles County Fire Department Los AngelesCA 90063USA Centers for Disease Control and Prevention National Institute for Occupational Safety and HealthRespiratory Health DivisionMorgantownWV 26505USA Environmental and Molecular Toxicology Oregon State UniversityCorvallisOR 97331USA

Background:Physiological and biochemical processes across tissues of the body are regulated in response to the high demands of intense physical activity in several occupations,such as firefighting,law enforcement,military,and sports.A better understanding of such processes can ultimately help improve human performance and prevent illnesses in the work ***:To study regulatory processes in intense physical activity simulating real-life conditions,we performed a multi-omics analysis of 3 biofluids(blood plasma,urine,and saliva)collected from 11 wildland firefighters before and after a 45 min,intense exercise *** profiles ***-exercise were compared by Student’s t-test followed by pathway analysis and comparison between the different omics ***:Our multi-omics analysis identified and quantified 3835 proteins,730 lipids and 182 metabolites combining the 3 different types of *** blood plasma analysis revealed signatures of tissue damage and acute repair response accompanied by enhanced carbon metabolism to meet energy *** urine analysis showed a strong,concomitant regulation of 6 out of 8 identified proteins from the renin-angiotensin system supporting increased excretion of catabolites,reabsorption of nutrients and maintenance of fluid *** saliva,we observed a decrease in 3 pro-inflammatory cytokines and an increase in 8 antimicrobial peptides.A systematic literature review identified 6 papers that support an altered susceptibility to respiratory ***:This study shows simultaneous regulatory signatures in biofluids indicative of homeostatic maintenance during intense physical activity with possible effects on increased infection susceptibility,suggesting that caution against respiratory diseases could benefit workers on highly physical demanding jobs.

关键词： Multi-omics analysis Intense exercise Human performance Biofluids Metabolism Immunity

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The Global boundary Stratotype Section and Point （GSSP） of the Ladinian Stage （Middle Triassic） at Bagolino （Southern Alps, northern Italy） and its implications for the Triassic time scale

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Episodes 2005年第4期28卷 233-244页

作者： Peter Brack Hans Riebe Alda nicora Roland Mundil Departement Erdwissenschaften ETH-Zentrum CH-8092 Zurich Switzerland. Palaontologisches Instituit Universitat ZurichCH-8006ZurichSwitzerland. Dipartimento di Scienze della Terra Universita di Milano Via Mangiagaiii 341-20133 Milano Italy. Berkeley Geochronology Center 2455 Ridge Road Berkeley CA 94709 USA

The Global boundary Stratotype Section and Point （GSSP） for the base of the Ladinian Stage （Middle Triassic） is defined in the Caffaro river bed （45°49＇09.5＂n, 10°28＇15.5＂E）, south of the village of Bagolino （Province of Brescia, northern Italy）, at the base of a 15-20-cm-thick limestone bed overlying a distinct groove （＂Chiesense groove ＂） of limestone nodules in a shaly matrix, located about 5 m above the base of the Buchenstein Formation. The lower surface of the thick limestone bed has the lowest occurrence of the ammonoid Eoprotrachyceras curionii （base of the E. curionii Zone; onset of the Trachyceratidae ammonoid family）. Secondary global markers in the uppermost Anisian include the lowest occurrence of conodont neogondolella praehungafica and a brief normal-polarity magnetic zone recognized in closely correlated sections including the principal auxiliary section at Seceda in the Dolomites. The GSSP-level is bracketed by U-Pb single zircon age data from volcaniclastic horizons, indicating a boundary age of ca 241 Ma.

关键词：三叠纪镧阿尔卑斯山意大利 GSSP

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A revision of the Carnian/norian boundary radiolarian assemblages: insight from the biostratigraphic record of the norian GSSP, Pizzo Mondello section(Western Sicily, Italy)

A revision of the Carnian/Norian boundary radiolarian assemb...

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2023年中国地球科学联合学术年会

作者： Qiangwang Wu Angela Bertinelli Alda nicora Manuel Rigo Department of Geosciences University of Padova Department of Physics and Geology University of Perugia Department of Earth Sciences University of Milan

The Pizzo Mondello section in Western Sicily (Italy) is one of the best localities for the study of the Carnian/norian boundary (CnB). At this site, a 450-m continuous succession of upper Carnian to upper norian marine limestones is well-exposed and very easily accessible. The succession belongs to the Scillato Formation, which is an open marine succession characterized by high sedimentation rates, almost uniform facies, and a rich paleontologic record, combined with paleomagnetic and stable isotope records.

关键词： Radiolarian Carnian/norian boundary Pizzo Mondello section GSSP

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用于化妆品的可生物降解表面活性剂在钻井液中的应用

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国外油田工程 2001年第11期17卷 29-33页

作者： Lui F.nicora William M.Mcgregor 史俊谢炜西安石油学院

烷基多苷 (APG)是一种高效的可生物降解的表面活性剂 ,在此之前它通常用于诸如化妆品之类的领域中 ,而从未在钻井液中使用过。本文将APG与钻井液中常用的聚合物相复配 ,室内测试其对钻井液性能的协同作用。实验结果表明 ,在聚合物泥浆... 详细信息

烷基多苷 (APG)是一种高效的可生物降解的表面活性剂 ,在此之前它通常用于诸如化妆品之类的领域中 ,而从未在钻井液中使用过。本文将APG与钻井液中常用的聚合物相复配 ,室内测试其对钻井液性能的协同作用。实验结果表明 ,在聚合物泥浆中加入极低浓度的APG后 ,即使是在高温下仍可产生明显的降滤失效果。

关键词：钻井液添加剂 APG 生物降解液体损失流变性表面活性剂

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