1 resultado para anty-communist guerilla
em Chinese Academy of Sciences Institutional Repositories Grid Portal
Filtro por publicador
- Aberdeen University (5)
- Abertay Research Collections - Abertay University’s repository (1)
- Aberystwyth University Repository - Reino Unido (5)
- Academic Research Repository at Institute of Developing Economies (6)
- Adam Mickiewicz University Repository (8)
- AMS Tesi di Dottorato - Alm@DL - Università di Bologna (13)
- ArchiMeD - Elektronische Publikationen der Universität Mainz - Alemanha (2)
- Archive of European Integration (65)
- Aston University Research Archive (41)
- Biblioteca Digital | Sistema Integrado de Documentación | UNCuyo - UNCUYO. UNIVERSIDAD NACIONAL DE CUYO. (2)
- Biblioteca Digital de Teses e Dissertações Eletrônicas da UERJ (8)
- BORIS: Bern Open Repository and Information System - Berna - Suiça (14)
- Brock University, Canada (3)
- Bucknell University Digital Commons - Pensilvania - USA (1)
- CentAUR: Central Archive University of Reading - UK (31)
- Center for Jewish History Digital Collections (5)
- Central European University - Research Support Scheme (21)
- Chinese Academy of Sciences Institutional Repositories Grid Portal (1)
- Clark Digital Commons--knowledge; creativity; research; and innovation of Clark University (1)
- Cochin University of Science & Technology (CUSAT), India (1)
- Coffee Science - Universidade Federal de Lavras (1)
- CORA - Cork Open Research Archive - University College Cork - Ireland (2)
- Cornell: DigitalCommons@ILR (1)
- Corvinus Research Archive - The institutional repository for the Corvinus University of Budapest (9)
- Dalarna University College Electronic Archive (2)
- Deakin Research Online - Australia (30)
- DI-fusion - The institutional repository of Université Libre de Bruxelles (2)
- Digital Archives@Colby (2)
- Digital Commons - Michigan Tech (2)
- Digital Commons at Florida International University (11)
- Digital Peer Publishing (3)
- DigitalCommons@University of Nebraska - Lincoln (1)
- DRUM (Digital Repository at the University of Maryland) (2)
- Duke University (1)
- Fachlicher Dokumentenserver Paedagogik/Erziehungswissenschaften (1)
- Glasgow Theses Service (2)
- Helda - Digital Repository of University of Helsinki (8)
- Memoria Académica - FaHCE, UNLP - Argentina (41)
- Nottingham eTheses (1)
- Portal de Revistas Científicas Complutenses - Espanha (7)
- QSpace: Queen's University - Canada (2)
- QUB Research Portal - Research Directory and Institutional Repository for Queen's University Belfast (24)
- Queensland University of Technology - ePrints Archive (24)
- ReCiL - Repositório Científico Lusófona - Grupo Lusófona, Portugal (1)
- Repositorio Académico de la Universidad Nacional de Costa Rica (6)
- Repositório Científico da Universidade de Évora - Portugal (1)
- Repositório digital da Fundação Getúlio Vargas - FGV (3)
- Repositório Institucional da Universidade de Aveiro - Portugal (1)
- Repositório Institucional da Universidade de Brasília (1)
- Repositório Institucional da Universidade Estadual de São Paulo - UNESP (1)
- Repositorio Institucional de la Universidad de La Laguna (1)
- Repositorio Institucional de la Universidad de Málaga (1)
- Repositório Institucional UNESP - Universidade Estadual Paulista "Julio de Mesquita Filho" (41)
- Research Open Access Repository of the University of East London. (1)
- Royal College of Art Research Repository - Uninet Kingdom (1)
- RUN (Repositório da Universidade Nova de Lisboa) - FCT (Faculdade de Cienecias e Technologia), Universidade Nova de Lisboa (UNL), Portugal (1)
- SAPIENTIA - Universidade do Algarve - Portugal (2)
- South Carolina State Documents Depository (1)
- Universidad de Alicante (2)
- Universidad del Rosario, Colombia (19)
- Universidad Politécnica de Madrid (1)
- Universidade de Lisboa - Repositório Aberto (2)
- Universidade Federal do Pará (3)
- Universidade Federal do Rio Grande do Norte (UFRN) (7)
- Universidade Técnica de Lisboa (1)
- Université de Montréal (2)
- Université de Montréal, Canada (15)
- Université Laval Mémoires et thèses électroniques (1)
- University of Michigan (89)
- University of Queensland eSpace - Australia (1)
- University of Washington (3)
- WestminsterResearch - UK (7)
- Worcester Research and Publications - Worcester Research and Publications - UK (2)
Resumo:
中国植被的1860个样方资料的统计结果表明,克隆植物存在于不同类型的生态系统中,并在大部分生态系统中占有重要地位。同非克隆植物相比,克隆植物大多具有更强的适应环境压力的能力。在高纬度、高海拔地区,克隆植物的丰富度较高。在寒冷、低氮含量、养分贫瘠的生境中出现频率较高。在高山草甸、冻原、高山裸岩和砾石稀疏植被带等胁迫生境中克隆植物占的比例较高。克隆植物中,具有不同克隆生长器官的植物在不同生境中出现频率不同。根起源克隆植物在低纬度、低海拔,以及较温暖、湿润的生境中丰富度较高,相反,茎起源克隆植物在高纬度、高海拔,较寒冷、干旱的生境中丰富度较高。根起源克隆植物中,根出条型植物的生境条件和根起源克隆植物的相同,出现在灌丛、阔叶林和竹林中的频率较高;茎起源克隆植物中,根茎型植物的生境条件和茎起源植物的相同,出现在水生植被、草甸和草原中的频率较高,而匍匐茎型植物在较温暖、湿润、阴蔽的生境中出现频率较高。不同克隆生长构型的植物对生境的适应性不同。密集型克隆植物在高纬度、高海拔,寒冷、养分贫瘠生境中较丰富,如高山灌丛、草原,荒漠草原;同密集型克隆植物相比,游击型克隆植物在低纬度、低海拔,相对温暖、湿润的生境中丰富度较高,如水生植被、草甸。 在低植物密度生境中,物种多样性随密集型和游击型克隆植物相对重要值的增加而增加。在高植物密度生境中,高度密集的密集型克隆分株,阻止其它物种的定居,容易形成局部垄断的格局,从而降低群落物种多样性。当游击型克隆植物进入高密度生境中时,它会借助于其分散分株的空间扩展优势迅速在生境中取得优势地位,排斥其它物种,导致物种多样性的降低。群落中克隆性与多样性的关系同植物的克隆生长构型和克隆植物种群内部的调节机制,以及植物的生境状况有关系。在低密度生境中,物种多样性随克隆植物重要性的增加而增加,在高密度生境中,物种多样性随克隆植物重要性的增加而降低。克隆性与多样性的关系还需要通过生态学实验深入研究。