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Long-term variation in soil moisture in Pasoh Forest Reserve, a lowland tropical rainforest in Malaysia

Clarifying variations in soil moisture is an important part of hydrological and ecological studies in tropical rainforests. Volumetric soil water content (VSWC) was measured at depths of 10, 20 and 30 cm at Pasoh Forest Reserve (PFR) in Peninsular Malaysia for 12 years. VSWC ranged from 0.280–0.442...

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Egile Nagusiak: Takanashi, S., Kosugi, Y., Niiyama, K., S. Siti Aisah, Noguchi, S., Lion, M., Tani, M.
Formatua: Journal Contribution
Hizkuntza:English
Argitaratua: 2017
Gaiak:
Soil moisture
Tropical rain forests
Soil water content
Forest reserves
Monsoon climate
Rainfall
Precipitation
Drought
Flowering
Sarrera elektronikoa:http://agris.upm.edu.my:8080/dspace/handle/0/12842
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spelling oai:http:--agris.upm.edu.my:0-12842Long-term variation in soil moisture in Pasoh Forest Reserve, a lowland tropical rainforest in MalaysiaTakanashi, S.Kosugi, Y.Niiyama, K.S. Siti AisahNoguchi, S.Lion, M.Tani, M.Soil moistureTropical rain forestsSoil water contentForest reservesMonsoon climateRainfallPrecipitationDroughtFloweringClarifying variations in soil moisture is an important part of hydrological and ecological studies in tropical rainforests. Volumetric soil water content (VSWC) was measured at depths of 10, 20 and 30 cm at Pasoh Forest Reserve (PFR) in Peninsular Malaysia for 12 years. VSWC ranged from 0.280–0.442 m3 m-3 (mean ± standard error; 0.373 ± 0.001 m3 m-3) and was affected not only by the south-west and north-east monsoons but also by El Niño and La Niña events. Mean VSWC was high during La Niña events and low during El Niño events. In a normal El Niño/Southern Oscillation (ENSO) phase, VSWC showed both low and high conditions. An antecedent precipitation index (API) was calculated using 20 years of rainfall data. API90 ranged from 1.2–257.3 mm (25.4 ± 0.2 mm). The variations in API90 followed a similar pattern to variations in the VSWC. API90 can be used to estimate soil moisture conditions as a drought indicator. An API90 of less than 10 mm lasted more than 14 successive days during the normal ENSO phases when five mass flowerings occurred at PFR from 1995–2014.2017-03-17T02:05:02Z2017-03-17T02:05:02Z2016Journal ContributionArticleNon-RefereedJournal of Tropical Forest Science (Malaysia), 28, p. 324-3330128-1283http://agris.upm.edu.my:8080/dspace/handle/0/12842MY2017050331enhttps://www.frim.gov.my/v1/jtfsonline/jtfs/v28n5/324-333.pdfMalaysiahttp://www.oceandocs.org/license
institution AGRIS
collection AGRIS
language English
topic Soil moisture
Tropical rain forests
Soil water content
Forest reserves
Monsoon climate
Rainfall
Precipitation
Drought
Flowering
spellingShingle Soil moisture
Tropical rain forests
Soil water content
Forest reserves
Monsoon climate
Rainfall
Precipitation
Drought
Flowering
Takanashi, S.
Kosugi, Y.
Niiyama, K.
S. Siti Aisah
Noguchi, S.
Lion, M.
Tani, M.
Long-term variation in soil moisture in Pasoh Forest Reserve, a lowland tropical rainforest in Malaysia
description Clarifying variations in soil moisture is an important part of hydrological and ecological studies in tropical rainforests. Volumetric soil water content (VSWC) was measured at depths of 10, 20 and 30 cm at Pasoh Forest Reserve (PFR) in Peninsular Malaysia for 12 years. VSWC ranged from 0.280–0.442 m3 m-3 (mean ± standard error; 0.373 ± 0.001 m3 m-3) and was affected not only by the south-west and north-east monsoons but also by El Niño and La Niña events. Mean VSWC was high during La Niña events and low during El Niño events. In a normal El Niño/Southern Oscillation (ENSO) phase, VSWC showed both low and high conditions. An antecedent precipitation index (API) was calculated using 20 years of rainfall data. API90 ranged from 1.2–257.3 mm (25.4 ± 0.2 mm). The variations in API90 followed a similar pattern to variations in the VSWC. API90 can be used to estimate soil moisture conditions as a drought indicator. An API90 of less than 10 mm lasted more than 14 successive days during the normal ENSO phases when five mass flowerings occurred at PFR from 1995–2014.
format Journal Contribution
author Takanashi, S.
Kosugi, Y.
Niiyama, K.
S. Siti Aisah
Noguchi, S.
Lion, M.
Tani, M.
author_facet Takanashi, S.
Kosugi, Y.
Niiyama, K.
S. Siti Aisah
Noguchi, S.
Lion, M.
Tani, M.
author_sort Takanashi, S.
title Long-term variation in soil moisture in Pasoh Forest Reserve, a lowland tropical rainforest in Malaysia
title_short Long-term variation in soil moisture in Pasoh Forest Reserve, a lowland tropical rainforest in Malaysia
title_full Long-term variation in soil moisture in Pasoh Forest Reserve, a lowland tropical rainforest in Malaysia
title_fullStr Long-term variation in soil moisture in Pasoh Forest Reserve, a lowland tropical rainforest in Malaysia
title_full_unstemmed Long-term variation in soil moisture in Pasoh Forest Reserve, a lowland tropical rainforest in Malaysia
title_sort long-term variation in soil moisture in pasoh forest reserve, a lowland tropical rainforest in malaysia
publishDate 2017
url http://agris.upm.edu.my:8080/dspace/handle/0/12842
_version_ 1819284984805982208
score 13.4562235

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