Soil Physical Properties and Preferential Flow Pathways in Tropical Rain Forest, Bukit Tarek, Peninsular Malaysia

Noguchi, Shoji; Nik, Abdul Rahim; Kasran, Baharuddin; Tani, Makoto; Sammori, Toshiaki; Morisada, Kazuhito

doi:10.1007/bf02348479

Cited by 84 publications

(75 citation statements)

References 7 publications

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“…The BTEW is located in Selangor Darul Ehsan, Peninsular Malaysia (latitude: 3° 31' N, longitude: 101° 35' E, altitude: 48-213 m; Fig. 1), and is divided into three catchments designated C1, C2 and C3 [25][26][27] . Catchments C2 and C3 were logged in November 1999 15,34 , and C3 was cleared from December 2003 to January 2004 38 .…”

Section: Study Areamentioning

confidence: 99%

“…These results suggest that accumulated soils on steep concave slopes may accelerate the occurrence of surface flow. Noguchi et al 25 showed that saturation overland flow may not be dominant in the C1 forest catchment (an undisturbed basin), but subsurface flow must play an important role in stormflow generation. In C2 catchment buffer zones, especially on steep concave slopes, lower side-hollows, and channel walls, low fine porosity could decrease the subsurface flow, and low coarse porosity may accelerate the generation of surface flow; the discharged sediment would therefore be transported into streams.…”

Section: Physical Properties Of Soils and Sediment Dischargementioning

confidence: 99%

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Sediment Discharge through Buffer Zones in a Tropical Rainforest of Peninsular Malaysia

Ohnuki

Nik

Noguchi

et al. 2010

JARQ

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To prevent soil runoff from logging roads and skid trails, buffer zones are commonly established along both sides of streams. These buffers range in width from 10 to 100 m from the center of the stream, depending on stream width, (from 1 to > 40 m) as dictated by the Reduced-Impact Logging Guidelines for Lowland and Hill Dipterocarp Forests in Indonesia. In the Bukit Tarek Experimental Watershed in Malaysia, sediment accumulations were observed along narrow streams after logging despite the presence of 20-m-wide buffer zones, double the width set out in the guidelines. Thus, we examined erosion-accumulation depths on different slopes in 20-m-wide buffer zones to clarify the spatial effects on sediment discharge, particularly as it relates to the microtopography and the vegetation cover, including fallen trees. Some of the accumulation depths at lower elevations and along streams were small, whereas on steep concave slopes and hollows that extend to streams, large accumulations were observed 1 year after logging. These findings indicated that, although a 20-m-wide buffer zone may be partly effective at preventing sediment discharge, it is not adequate on concave slopes (lower side-hollows and channel walls) where surface flows often converge. We compared several physical properties of the surface soil in accumulated areas relative to undisturbed areas and demonstrated that bulk density was larger and total porosity and coarse porosity were smaller in the accumulated soils, especially on lower side-hollows. These results indicate that soils accumulated on concave slopes would accelerate the occurrence of surface flow. Tree distribution was not dense in the buffer zones, but fallen trees and the relatively dense understory vegetation including rattans and palms partly prevented the discharge of sediment into streams. Our findings suggested that 20-mwide buffer zones with dense fallen trees and understory vegetation are partly sufficient to prevent sediment discharge; however, along steep concave slopes and hollows where rain water converges, wider and thicker buffer zones are needed.Discipline: Forestry and forest products Additional key words: fallen tree, physical property, soil runoff, vegetation cover

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Section: Study Areamentioning

confidence: 99%

Section: Physical Properties Of Soils and Sediment Dischargementioning

confidence: 99%

Sediment Discharge through Buffer Zones in a Tropical Rainforest of Peninsular Malaysia

Ohnuki

Nik

Noguchi

et al. 2010

JARQ

Self Cite

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“…These hillslope experiments have been conducted at South Creek, Australia (Bonell and Gilmour 1978;Bonell et al 1981Bonell et al , 1983, Reserva Ducke, Brazil (Nortcliff and Thornes 1981), Fazenda Dimona, Brazil (Hodnett et al 1997), Ulu Belalong, Brunei (Dykes and Thornes 2000), Bukit Tarek, Peninsular Malaysia (Noguchi et al 1997), Danum, East Malaysia (Sinun et al1992;Chappell et al 1998Chappell et al , 1999aChappell et al ,b, 2004cChappell and Sherlock 2005), Luquillo, Puerto Rico (Schellekens 2000), Lutz Creek, Panama (Godsey et al 2004;Kinner and Stallard 2004), La Cuenca, Peru (Elsenbeer and Lack 1996), and Bukit Timah, Singapore (Sherlock et al 1995(Sherlock et al , 2000Chappell and Sherlock 2005). Others have attempted to generalise the runoff pathways illustrated in these studies (Chappell and Ternan 1992;Elsenbeer 2001;Bonell 2004), particularly in the upper layers of the ground; we attempt to add to this work.…”

Section: D2mentioning

confidence: 99%

“…Figure 1a,b shows the locations of the key hillslope hydrology studies (i.e., studies with at least permeability and soil-water measurements) published in the international literature. Six out of ten are on Acrisol-Alisol soils, the dominant soil of Southeast Asia (Sherlock et al 1995;Noguchi et al 1997;Chappell et al 1998;Dykes and Thornes 2000;Schellekens 2000;Kinner and Stallard 2004). A further two studies (Bonell and Gilmour 1978;Elsenbeer and Lack 1996) have results from a mix of Acrisol-Alisol and other soils.…”

Section: Dominant Soil Type In Southeast Asiamentioning

confidence: 99%

“…The observations of Chappell and Sherlock (2005) confirm this. Second, Elsenbeer (2001) classifies the Bukit Tarek soils as being part of the Ferralsol end-member, whereas they are Acrisol soils (Yusop 1996;Noguchi et al 1997). Third, the soil at Bukit Timah is derived from a granite regolith very similar to that of Bukit Tarek.…”

Section: Dominant Soil Type In Southeast Asiamentioning

confidence: 99%

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