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基于SDI指数的南非共和国2001-2014年干旱监测时空分布 被引量:3
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作者 雷步云 赵书河 +3 位作者 覃志豪 peter johnston 贺可勋 张振克 《干旱区地理》 CSCD 北大核心 2016年第2期395-404,共10页
干旱在南非共和国地区是一种发生频率较高的自然灾害,干旱的发生会对粮食安全产生影响。根据南非共和国的自然气候特点和内部地表覆盖及地形特点,找出了一种合适的干旱监测指数。即通过NDVI的分级对南非共和国农业区不同地表覆盖度和不... 干旱在南非共和国地区是一种发生频率较高的自然灾害,干旱的发生会对粮食安全产生影响。根据南非共和国的自然气候特点和内部地表覆盖及地形特点,找出了一种合适的干旱监测指数。即通过NDVI的分级对南非共和国农业区不同地表覆盖度和不同地形植被进行单独计算归一化植被供水指数(VSWI),得到监测干旱的合成干旱监测指数(SDI)。用于干旱的监测数据是2001-2014年MOD13A1和MOD11A2数据,采用SDI指数结合农业种植区得到14 a南非共和国高时空分辨率农业干旱监测分布数据集。通过数据分析得出,南非共和国干旱主要发生于春季末、夏季初,一般在夏季末期影响达到最大。14 a间,干旱影响较严重的年份是2002年、2007年和2013年,各省发生干旱时,一般是以轻度干旱和中度干旱为主,夏季末出现重度干旱的影响。干旱发生时往往是由降雨稀少的中部地区出现,进而向东部和南部扩张,并且中部地区出现轻度干旱的频率较高。SDI得到的干旱监测结果与南非共和国干旱发生事件基本一致,弥补了气象干旱监测的不足,因此SDI干旱指数可用于南非共和国地区干旱监测。 展开更多
关键词 干旱监测 MODIS数据 SDI 南非共和国
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计算机病毒危机
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作者 Philip Fites peter johnston Martin Kratz 《计算机工程与科学》 CSCD 1991年第1期112-139,共28页
目录序言第一章绪论如何使用本书问题的实质什么是计算机病毒?病毒怎样进行传播?对于病毒怎么办?软件出版商怎样做第二章计算机病毒感染范围通讯、连通性和病毒传播我们为何称之为病毒?一些著名的病毒新操作系统的新病毒病毒与主机系统... 目录序言第一章绪论如何使用本书问题的实质什么是计算机病毒?病毒怎样进行传播?对于病毒怎么办?软件出版商怎样做第二章计算机病毒感染范围通讯、连通性和病毒传播我们为何称之为病毒?一些著名的病毒新操作系统的新病毒病毒与主机系统特洛伊木马、意大利香肠和其它计算机娱乐以后会有什么事情发生? 展开更多
关键词 计算机病毒 计算机安全
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FungalTraits:a user-friendly traits database of fungi and fungus-like stramenopiles 被引量:3
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作者 Sergei Põlme Kessy Abarenkov +125 位作者 RHenrik Nilsson Björn D.Lindahl Karina Engelbrecht Clemmensen Havard Kauserud Nhu Nguyen Rasmus Kjøller Scott T.Bates Petr Baldrian Tobias Guldberg Frøslev Kristjan Adojaan Alfredo Vizzini Ave Suija Donald Pfister Hans-Otto Baral Helle Järv Hugo Madrid Jenni Nordén Jian-Kui Liu Julia Pawlowska Kadri Põldmaa Kadri Pärtel Kadri Runnel Karen Hansen Karl-Henrik Larsson Kevin David Hyde Marcelo Sandoval-Denis Matthew E.Smith Merje Toome-Heller Nalin N.Wijayawardene Nelson Menolli Jr Nicole K.Reynolds Rein Drenkhan Sajeewa S.N.Maharachchikumbura Tatiana B.Gibertoni Thomas Læssøe William Davis Yuri Tokarev Adriana Corrales Adriene Mayra Soares Ahto Agan Alexandre Reis Machado Andrés Argüelles-Moyao Andrew Detheridge Angelina de Meiras-Ottoni Annemieke Verbeken Arun Kumar Dutta Bao-Kai Cui C.K.Pradeep César Marín Daniel Stanton Daniyal Gohar Dhanushka N.Wanasinghe Eveli Otsing Farzad Aslani Gareth W.Griffith Thorsten H.Lumbsch Hans-peter Grossart Hossein Masigol Ina Timling Inga Hiiesalu Jane Oja John Y.Kupagme József Geml Julieta Alvarez-Manjarrez Kai Ilves Kaire Loit Kalev Adamson Kazuhide Nara Kati Küngas Keilor Rojas-Jimenez Krišs Bitenieks Laszlo Irinyi LászlóGNagy Liina Soonvald Li-Wei Zhou Lysett Wagner M.Catherine Aime MaarjaÖpik María Isabel Mujica Martin Metsoja Martin Ryberg Martti Vasar Masao Murata Matthew PNelsen Michelle Cleary Milan C.Samarakoon Mingkwan Doilom Mohammad Bahram Niloufar Hagh-Doust Olesya Dulya peter johnston Petr Kohout Qian Chen Qing Tian Rajasree Nandi Rasekh Amiri Rekhani Hansika Perera Renata dos Santos Chikowski Renato L.Mendes-Alvarenga Roberto Garibay-Orijel Robin Gielen Rungtiwa Phookamsak Ruvishika S.Jayawardena Saleh Rahimlou Samantha C.Karunarathna Saowaluck Tibpromma Shawn P.Brown Siim-Kaarel Sepp Sunil Mundra Zhu-Hua Luo Tanay Bose Tanel Vahter Tarquin Netherway Teng Yang Tom May Torda Varga Wei Li Victor Rafael Matos Coimbra Virton Rodrigo Targino de Oliveira Vitor Xavier de Lima Vladimir S.Mikryukov Yongzhong Lu Yosuke Matsuda Yumiko Miyamoto Urmas Kõljalg Leho Tedersoo 《Fungal Diversity》 SCIE 2020年第6期I0001-I0016,共16页
The cryptic lifestyle of most fungi necessitates molecular identification of the guild in environmental studies.Over the past decades,rapid development and affordability of molecular tools have tremendously improved i... The cryptic lifestyle of most fungi necessitates molecular identification of the guild in environmental studies.Over the past decades,rapid development and affordability of molecular tools have tremendously improved insights of the fungal diversity in all ecosystems and habitats.Yet,in spite of the progress of molecular methods,knowledge about functional properties of the fungal taxa is vague and interpretation of environmental studies in an ecologically meaningful manner remains challenging.In order to facilitate functional assignments and ecological interpretation of environmental studies we introduce a user friendly traits and character database FungalTraits operating at genus and species hypothesis levels.Combining the information from previous efforts such as FUNGuild and FunFun together with involvement of expert knowledge,we reannotated 10,210 and 151 fungal and Stramenopila genera,respectively.This resulted in a stand-alone spreadsheet dataset covering 17 lifestyle related traits of fungal and Stramenopila genera,designed for rapid functional assignments of environmental stud-ies.In order to assign the trait states to fungal species hypotheses,the scientific community of experts manually categorised and assigned available trait information to 697,413 fungal ITS sequences.On the basis of those sequences we were able to summarise trait and host information into 92,623 fungal species hypotheses at 1%dissimilarity threshold. 展开更多
关键词 Fungal traits Trophic modes Function GUILD BIOINFORMATICS High-throughput sequencing Community ecology
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Correction to:FungalTraits:a user friendly traits database of fungi and fungus-like stramenopiles 被引量:1
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作者 Sergei Põlme Kessy Abarenkov +125 位作者 RHenrik Nilsson Björn D.Lindahl Karina Engelbrecht Clemmensen Havard Kauserud Nhu Nguyen Rasmus Kjøller Scott T.Bates Petr Baldrian Tobias Guldberg Frøslev Kristjan Adojaan Alfredo Vizzini Ave Suija Donald Pfister Hans-Otto Baral Helle Järv Hugo Madrid Jenni Nordén Jian-Kui Liu Julia Pawlowska Kadri Põldmaa Kadri Pärtel Kadri Runnel Karen Hansen Karl-Henrik Larsson Kevin David Hyde Marcelo Sandoval-Denis Matthew E.Smith Merje Toome-Heller Nalin N.Wijayawardene Nelson Menolli Jr Nicole K.Reynolds Rein Drenkhan Sajeewa S.N.Maharachchikumbura Tatiana B.Gibertoni Thomas Læssøe William Davis Yuri Tokarev Adriana Corrales Adriene Mayra Soares Ahto Agan Alexandre Reis Machado Andrés Argüelles-Moyao Andrew Detheridge Angelina de Meiras-Ottoni Annemieke Verbeken Arun Kumar Dutta Bao-Kai Cui C.K.Pradeep César Marín Daniel Stanton Daniyal Gohar Dhanushka N.Wanasinghe Eveli Otsing Farzad Aslani Gareth W.Griffith Thorsten H.Lumbsch Hans-peter Grossart Hossein Masigol Ina Timling Inga Hiiesalu Jane Oja John Y.Kupagme József Geml Julieta Alvarez-Manjarrez Kai Ilves Kaire Loit Kalev Adamson Kazuhide Nara Kati Küngas Keilor Rojas-Jimenez Krišs Bitenieks LászlóIrinyi LászlóGNagy Liina Soonvald Li-Wei Zhou Lysett Wagner M.Catherine Aime MaarjaÖpik María Isabel Mujica Martin Metsoja Martin Ryberg Martti Vasar Masao Murata Matthew P.Nelsen Michelle Cleary Milan C.Samarakoon Mingkwan Doilom Mohammad Bahram Niloufar Hagh-Doust Olesya Dulya peter johnston Petr Kohout Qian Chen Qing Tian Rajasree Nandi Rasekh Amiri Rekhani Hansika Perera Renata dos Santos Chikowski Renato L.Mendes-Alvarenga Roberto Garibay-Orijel Robin Gielen Rungtiwa Phookamsak Ruvishika S.Jayawardena Saleh Rahimlou Samantha C.Karunarathna Saowaluck Tibpromma Shawn P.Brown Siim-Kaarel Sepp Sunil Mundra Zhu-Hua Luo Tanay Bose Tanel Vahter Tarquin Netherway Teng Yang Tom May Torda Varga Wei Li Victor Rafael Matos Coimbra Virton Rodrigo Targino de Oliveira Vitor Xavier de Lima Vladimir S.Mikryukov Yongzhong Lu Yosuke Matsuda Yumiko Miyamoto Urmas Kõljalg Leho Tedersoo 《Fungal Diversity》 SCIE 2021年第2期129-132,共4页
Correction to:Fungal Diversity(2020)105:116 https://doi.org/10.1007/s13225-020-00466-2 There were errors in the name of author LászlóG.Nagy and in affiliation no.31 in the original publication.The original a... Correction to:Fungal Diversity(2020)105:116 https://doi.org/10.1007/s13225-020-00466-2 There were errors in the name of author LászlóG.Nagy and in affiliation no.31 in the original publication.The original article has been corrected. 展开更多
关键词 DATABASE RAM friendly
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