Arid
DOI10.1093/forestry/cpw021
An ecohydrological approach to managing dryland forests: integration of leaf area metrics into assessment and management
Osem, Yagil1; O’Hara, K.2
通讯作者Osem, Yagil
来源期刊FORESTRY
ISSN0015-752X
EISSN1464-3626
出版年2016
卷号89期号:4页码:338-349
英文摘要

We review the use of leaf area metrics (LAM) for assessing and managing dryland forests. We propose a framework integrating individual tree to whole-ecosystem metrics representing a variety of forest features and review theory, empirical evidence and knowledge gaps. Four basic concepts underlie the LAM framework: (1) Max-LAI - an ecosystem can be characterized by an upper potential leaf area index (LAI) dictated mainly by water availability, (2) Leaf area distribution - the distribution of leaf area is proportional to the distribution of resources among vegetation components, (3) Safe-LAI - maintaining Ecosystem-LAI below Max-LAI is a way to reduce drought stress and (4) tree leaf area (TLA) - the leaf area of an individual tree as a proportion of its potential TLA, represents its vigour. Implementation of the LAM strategy requires the following: (1) better understanding how edaphic conditions and vegetation characteristics interact with climate in determining Max-LAI, (2) better understanding how leaf area is related to water use across species, vegetation strata and light regimes, (3) better understanding the interaction between LAI development and stand dynamics, (4) better capability of measuring or estimating individual tree leaf area and (5) development of species-specific references for tree vigour based on leaf area. The LAM strategy is promising for managing dryland forests under increasing drought stress.


英文关键词silviculture Arid-land climate change forest monitoring leaf area index silvopastoral system
类型Review
语种英语
国家Israel ; USA
收录类别SCI-E
WOS记录号WOS:000383899000002
WOS关键词AGE-RELATED-CHANGES ; STAND DEVELOPMENT ; WATER-USE ; CROWN CONDITION ; EUROPEAN BEECH ; QUERCUS-RUBRA ; PINE FORESTS ; REAR-EDGE ; INDEX ; GROWTH
WOS类目Forestry
WOS研究方向Forestry
来源机构University of California, Berkeley
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/193002
作者单位1.Agr Res Org, Volcani Ctr, Dept Nat Resources, POB 6, IL-50250 Bet Dagan, Israel;
2.Univ Calif Berkeley, Dept Environm Sci Policy & Management, 130 Mulford Hall 3114, Berkeley, CA 94720 USA
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Osem, Yagil,O’Hara, K.. An ecohydrological approach to managing dryland forests: integration of leaf area metrics into assessment and management[J]. University of California, Berkeley,2016,89(4):338-349.
APA Osem, Yagil,&O’Hara, K..(2016).An ecohydrological approach to managing dryland forests: integration of leaf area metrics into assessment and management.FORESTRY,89(4),338-349.
MLA Osem, Yagil,et al."An ecohydrological approach to managing dryland forests: integration of leaf area metrics into assessment and management".FORESTRY 89.4(2016):338-349.
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