Journal of Forest Research

Items from 1 to 8 out of 8 results

article

Interspecific variation in leaf water use associated with drought tolerance in four emergent dipterocarp species of a tropical rain forest in Borneo

Toru Hiromi, Tomoaki Ichie, Tanaka Kenzo, Ikuo Ninomiya

Journal of Forest Research > 2012 > 17 > 4 > 369-377

By use of tree-tower and canopy-crane systems we studied variations in the water use, including transpiration, stomatal conductance, and leaf water potential, of the uppermost sun-exposed canopy leaves of four emergent dipterocarp species in an aseasonal tropical rain forest in Sarawak, Malaysia. Midday depression in stomatal conductance and leaf water potential was observed in all the species studied...

article

Comparison of the fine root dynamics of Populus euphratica forests in different habitats in the lower reaches of the Tarim River in Xinjiang, China, during the growing season

Zhi-Qin Pei, Chun-Wang Xiao, Dan Dong, Shou-Ren Zhang

Journal of Forest Research > 2012 > 17 > 4 > 343-351

The fine root dynamics of Populus euphratica forests in the upper section (Yingsu) and lower section (Alagan) habitats of the lower reaches of the Tarim River, southern Xinjiang, China, were investigated and compared by a sequential soil coring method during the growing season of 2008. Soil organic carbon, total nitrogen, soil water content, fine root biomass, necromass, and production were significantly...

article

Differences in soil organic matter, extractable nutrients, and acidity in European beech (Fagus sylvatica L.) forest soils related to the presence of ground flora

Frida Andreasson, Anna-Maj Balsberg Påhlsson, Bo Bergkvist

Journal of Forest Research > 2012 > 17 > 4 > 333-342

Differences in soil organic matter (SOM) content, soil acidity, and soil exchangeable nutrients (NH₄–N, NO₃–N, Ca, K, Na, Mg) related to the presence of ground flora were studied. The study was carried out for a growing season in two different Fagus sylvatica L. forests in southern Sweden, and the differences in soil characteristics below naturally occurring patches of Deschampsia flexuosa (L.) Trin...

article

Seasonal variations in the incidence of pine wilt and infestation by its vector, Monochamus alternatus, near the northern limit of the disease in Japan

Kazumasa Ohta, Kazuhiko Hoshizaki, Katsunori Nakamura, Akihiko Nagaki, more

Journal of Forest Research > 2012 > 17 > 4 > 360-368

During the last few decades, pine wilt disease has spread to cool-climate regions in Japan and, more recently, the potential risk of it spreading into the European midwest has also become a concern. In a coastal pine stand (84.7 ha) in Akita, near the northern limit of pine wilt disease in Japan, we investigated seasonal variations in the incidence of damage caused by the disease to trees and oviposition...

article

Virulence of Raffaelea quercivora isolates inoculated into Quercus serrata logs and Q. crispula saplings

Dai Kusumoto, Hayato Masuya, Kazuya Ohmura, Naoto Kamata

Journal of Forest Research > 2012 > 17 > 4 > 393-396

This study was conducted to compare the virulences of various isolates of Raffaelea quercivora—a fungus that causes Japanese oak wilt disease—towards Japanese oak trees. Five isolates were collected from a wide range of Japan and inoculated into Quercus serrata logs and Q. crispula saplings. The tangential length of the discolored sapwood in the Q. serrata logs differed significantly among the isolates...

article

Fruiting behavior of dipterocarps in two consecutive episodes of general flowering in a Malaysian lowland rain forest

Shinya Numata, Ryo O. Suzuki, Sen Nishimura, Yoko Naito, more

Journal of Forest Research > 2012 > 17 > 4 > 378-387

We examined fruiting behaviors of 24 dipterocarp species in a lowland rain forest of Peninsular Malaysia during two consecutive episodes of general flowering (GF). The first GF episode (GF2001) occurred from August 2001 to February 2002, and the second GF episode (GF2002) followed immediately, from March to September 2002. The magnitude of GF2002 was greater than that of GF2001 at the community level...

article

Potential role of frugivorous birds in the recovery process of forest vegetation after feral goat eradication in Mukojima Island, the Bonin Islands

Naoko Emura, Kazuto Kawakami, Tomohiro Deguchi, Koichi Sone

Journal of Forest Research > 2012 > 17 > 4 > 352-359

Some introduced frugivorous birds disperse introduced plants and are thus a substitute for extinct native birds. Introduced birds have negative and/or infrequently positive effects on local ecosystems. It is important for management of the ecosystems to understand the relationships between native and introduced frugivorous and plant species. In this study, we elucidated these relationships in Mukojima...

article

Ectomycorrhizal fungal community associated with naturally regenerating Pinus densiflora Sieb. et Zucc. seedlings on exposed granite slopes along woodland paths

Keisuke Obase, Joo Young Cha, Jong Kyu Lee, Sang Yong Lee, more

Journal of Forest Research > 2012 > 17 > 4 > 388-392

We investigated the ectomycorrhizal (EcM) fungal community of naturally regenerating Pinus densiflora seedlings on exposed decomposed granite (DG) slopes along woodland paths in the Republic of Korea. We sampled three- to five-year-old seedlings from slopes where DG was exposed (habitat S) and from the surrounding forest edge or gaps (habitat F). We classified EcMs into morphological groups and counted...

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Number:
4
Volume:
17
Year:
2012

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Keywords

DIPTEROCARPACEAE (2)
PINUS DENSIFLORA (1)
QUERCUS (1)
RAFFAELEA QUERCIVORA ISOLATES (1)
COLONIZATION (1)
COOL-CLIMATE CONDITIONS (1)
DISCOLORATION ONSET MONTH (1)
ECTOMYCORRHIZAL FUNGI (1)
EL NIÑO (1)
FINE ROOT BIOMASS (1)
FRUGIVOROUS BIRDS (1)
GRANITE SLOPE (1)
INFESTATION RATIO OF MONOCHAMUS ALTERNATUS (1)
INTRODUCED SPECIES (1)
JAPANESE OAK WILT DISEASE (1)
JAPANESE WHITE-EYE (1)
LEAF WATER USE (1)
MUKOJIMA ISLAND (1)
NECROMASS (1)
NITROGEN (1)
PENINSULAR MALAYSIA (1)
PRODUCTION (1)
REGENERATION (1)
REPRODUCTIVE PHENOLOGY (1)
RISK ANALYSIS (1)
SEASONAL PATTERN (1)
SEASONAL VARIATION (1)
SEED DISPERSAL (1)
SIZE DEPENDENCY (1)
SOIL CHARACTERISTICS (1)
SOIL ORGANIC MATTER (1)
SPATIAL DISTRIBUTION PATTERN (1)
TURNOVER RATE (1)
UNDERSTOREY (1)
UNUSUAL DROUGHT (1)
VIRULENCE (1)
WOOD DENSITY (1)
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