Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.2307/2845670 |
CLIMATIC GRADIENTS IN WOODY PLANT-SPECIES RICHNESS - TOWARDS AN EXPLANATION-BASED ON AN ANALYSIS OF SOUTHERN AFRICA WOODY FLORA | |
OBRIEN, EM | |
来源期刊 | JOURNAL OF BIOGEOGRAPHY
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ISSN | 0305-0270 |
出版年 | 1993 |
卷号 | 20期号:2页码:181-198 |
英文摘要 | The distribution of southern Africa’s woody flora (N=1372 species) describes a west-to-east pattern of increasing species richness, being lowest in arid to semi-arid areas and highest in mesic to humid areas. Climate accounts for 77.8% (R2; P<0.0001) of the variation: species richness is greatest where the amount and duration of energy is optimized (not too much, not too little) and moisture maximized, and decreases as the amount or duration of energy moves above or below optimal conditions, or as moisture decreases. Given the perpetual and necessary relationship between climate and plant photosynthesis, climate provides a first-order, albeit partial, explanation for the persistence of pattern (especially latitudinal and elevational gradients) in the distribution of woody plant species richness over space and time. |
英文关键词 | SPECIES RICHNESS SOUTHERN AFRICA LATITUDINAL GRADIENT ELEVATIONAL GRADIENT SPECIES DIVERSITY WOODY PLANTS CLIMATE MACROSCALE |
类型 | Article |
语种 | 英语 |
国家 | ENGLAND |
收录类别 | SCI-E |
WOS记录号 | WOS:A1993LZ74800004 |
WOS关键词 | DIVERSITY ; PATTERNS ; FORESTS ; TREES |
WOS类目 | Ecology ; Geography, Physical |
WOS研究方向 | Environmental Sciences & Ecology ; Physical Geography |
来源机构 | University of Oxford |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/128952 |
作者单位 | (1)UNIV OXFORD,SCH GEOG,OXFORD OX1 3TB,ENGLAND |
推荐引用方式 GB/T 7714 | OBRIEN, EM. CLIMATIC GRADIENTS IN WOODY PLANT-SPECIES RICHNESS - TOWARDS AN EXPLANATION-BASED ON AN ANALYSIS OF SOUTHERN AFRICA WOODY FLORA[J]. University of Oxford,1993,20(2):181-198. |
APA | OBRIEN, EM.(1993).CLIMATIC GRADIENTS IN WOODY PLANT-SPECIES RICHNESS - TOWARDS AN EXPLANATION-BASED ON AN ANALYSIS OF SOUTHERN AFRICA WOODY FLORA.JOURNAL OF BIOGEOGRAPHY,20(2),181-198. |
MLA | OBRIEN, EM."CLIMATIC GRADIENTS IN WOODY PLANT-SPECIES RICHNESS - TOWARDS AN EXPLANATION-BASED ON AN ANALYSIS OF SOUTHERN AFRICA WOODY FLORA".JOURNAL OF BIOGEOGRAPHY 20.2(1993):181-198. |
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