Exploring the Relationships Among Canopy Structure, Stand Productivity, and Biodiversity of Temperate Forest Ecosystems
Authors: Hiroaki T. Ishii1; Shin-ichi Tanabe2; Tsutom Hiura3
Source: Forest Science, Volume 50, Number 3, June 2004 , pp. 342-355(14)
Publisher: Society of American Foresters
Abstract:
Impacts of human activity on forest ecosystems are most pronounced in the temperate region. Simplification of stand structure has resulted in diminished ecosystem function and biodiversity decline, raising much debate over future management policies. Ecosystem functions and biodiversity may be enhanced by managing forests for increased structural complexity. However, processes that determine relationships among structural complexity, ecosystem functions, and biodiversity of forest ecosystems remain unclear. In this review, we present examples of studies conducted at two canopy research facilities located in different types of temperate forest to illustrate that structural complexity of forest canopies enhances stand productivity and biodiversity: (1) development of structurally complex canopies comprising various tree species enhances stand productivity by promoting complementary resource utilization among species through spatial, physiological, and temporal differentiation; and (2) development of complex canopy structure enhances biodiversity of canopy-dwelling organisms by creating a resource-rich habitat. These ecological observations stress the importance of including three-dimensional structural attributes of forest canopies in management plans and silvicultural prescriptions that aim to maintain ecosystem functions and biodiversity. FOR. SCI. 50(3):342355.Keywords: Ecosystem function; ecosystem management; habitat template; canopy structure; structural complexity; environmental management; forest; forest management; forest resources; forestry; forestry research; forestry science; natural resources; natural resource management
Document Type: Regular article
Affiliations: 1: Assistant Professor Division of Forest Resources, Graduate School of Science and Technology Kobe University Kobe Japan 657-8501 Phone: 81-78-803-5826;, Fax: 81-78-803-5349, Email: hishii@alumni.washington.edu 2: Research Assistant Biodiversity Group, Institute of Low Temperature Science Hokkaido University Sapporo Japan 060-0819 Current Address: COE21 Postdoctoral Fellow Terrestrial Biodiversity, Institute of Nature and Environmental Technology Kanazawa 3: Associate Professor and Director Tomakomai Research Station, Field Science Center for Northern Biosphere Hokkaido University Tomakomai Japan 053-0035 Phone: 81-144-33-2171, Email: hiura@exfor.agr.hokudai.ac.jp
Publication date: 2004-06-01
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