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| Titel |
How do tree competition and stand dynamics lead to spatial patterns in monospecific mangroves? |
| VerfasserIn |
M. N. I. Khan, S. Sharma, U. Berger, N. Koedam, F. Dahdouh-Guebas, A. Hagihara |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1726-4170
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| Digitales Dokument |
URL |
| Erschienen |
In: Biogeosciences ; 10, no. 4 ; Nr. 10, no. 4 (2013-04-30), S.2803-2814 |
| Datensatznummer |
250018222
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| Publikation (Nr.) |
 copernicus.org/bg-10-2803-2013.pdf |
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| Zusammenfassung |
| Information on mangrove stand development is rare because long-term
monitoring data is often lacking. Such information is important in order to
plan management measures effectively. Novel approaches based on existing datasets
are required to bridge this gap of knowledge. This study uses a
unique combination of field data analyses with simulation experiments in
order to demonstrate how information on mangrove dynamics can be extracted
if data are sparse. The paper provides a baseline characterization of stand
development in a monospecific pioneer mangrove stand of Kandelia obovata. Point pattern
analyses revealed that in the young stage, self-thinning has started but has
not yet lead to a regularity of spatial tree distribution in the entire
stand, and trees located in smaller clumps hinder each other in growth but
do not lead to a significant size class differentiation. However, after
ca. 2 decades the self-thinning and the size class differentiation start to
become more visible. A mutual inhibition of growth was observed within 2 m
circular distance (r) in the young stage and within 3 m distance after two
decades of stand development as confirmed by the negative values of mark
correlation function. As a stand grows older the spatial pattern of
individuals become more regular from a clustered pattern. In order to
understand and predict the future stand development, simulation experiments
were carried out by means of the individual-based model KiWi. |
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