Changes in Forest Structure and Biomass over Ten Years in a Lowland Amazonian Forest

The topographic effects on biomass and its increment were evaluated for a terra-firme forest near Manaus, Brazil. We established three plots (60 × 60 m) on a plateau and at the bottom of a valley (namely baixio), and measured stem diameter at breast height D (> 10 cm) for tree and palm species in...

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Veröffentlicht in:JARQ. Japan agricultural research quarterly 2016/10/01, Vol.50(4), pp.379-386
Hauptverfasser: SUWA, Rempei, SILVA, Fernando da, LIMA, Adriano José Nogueira, PINTO, Alberto Carlos Martins, SANTOS, Joaquim dos, KAJIMOTO, Takuya, ISHIZUKA, Moriyoshi, HIGUCHI, Niro
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container_issue 4
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container_title JARQ. Japan agricultural research quarterly
container_volume 50
creator SUWA, Rempei
SILVA, Fernando da
LIMA, Adriano José Nogueira
PINTO, Alberto Carlos Martins
SANTOS, Joaquim dos
KAJIMOTO, Takuya
ISHIZUKA, Moriyoshi
HIGUCHI, Niro
description The topographic effects on biomass and its increment were evaluated for a terra-firme forest near Manaus, Brazil. We established three plots (60 × 60 m) on a plateau and at the bottom of a valley (namely baixio), and measured stem diameter at breast height D (> 10 cm) for tree and palm species in 2002 and 2012. Small trees (10 cm > D > 5 cm) were measured in subplots (20 × 60 m) within each plot. We also estimated tree height with the D – tree height H relationship model based on a hundred samples of the tree species in each topography. The aboveground biomass AGB was estimated as 315.4 ± 33.2 (average ± SE) Mg ha-1 on the plateau, which was higher than 224.2 ± 20.3 Mg ha-1 in baixio though the difference was statistically marginal (p = 0.09). The difference in AGB was partly ascribed to the decrease of H for large trees and a lack of large trees whose D > 80 cm at the baixio site. The AGB of palm species in baixio was 2.7 ± 0.87 Mg ha-1, which was higher than 0.24 ± 0.08 Mg ha-1 on the plateau though the difference was statistically insignificant (p = 0.11). On the other hand, the increment of AGB did not differ significantly between the two sites (p > 0.05), and the variation of AGB increment among the plots was mainly ascribed to the variation of biomass loss caused by mortality.
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Japan agricultural research quarterly</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>SUWA, Rempei</au><au>SILVA, Fernando da</au><au>LIMA, Adriano José Nogueira</au><au>PINTO, Alberto Carlos Martins</au><au>SANTOS, Joaquim dos</au><au>KAJIMOTO, Takuya</au><au>ISHIZUKA, Moriyoshi</au><au>HIGUCHI, Niro</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Changes in Forest Structure and Biomass over Ten Years in a Lowland Amazonian Forest</atitle><jtitle>JARQ. Japan agricultural research quarterly</jtitle><addtitle>JARQ</addtitle><date>2016</date><risdate>2016</risdate><volume>50</volume><issue>4</issue><spage>379</spage><epage>386</epage><pages>379-386</pages><issn>0021-3551</issn><eissn>2185-8896</eissn><abstract>The topographic effects on biomass and its increment were evaluated for a terra-firme forest near Manaus, Brazil. 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On the other hand, the increment of AGB did not differ significantly between the two sites (p &gt; 0.05), and the variation of AGB increment among the plots was mainly ascribed to the variation of biomass loss caused by mortality.</abstract><pub>Japan International Research Center for Agricultural Sciences</pub><doi>10.6090/jarq.50.379</doi><tpages>8</tpages><oa>free_for_read</oa></addata></record>
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subjects Amazon
biomass increment
topography
title Changes in Forest Structure and Biomass over Ten Years in a Lowland Amazonian Forest
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