Are Soils in Degraded Dipterocarp Forest Ecosystems Deteriorated? A Comparison of Imperata Grasslands, Degraded Secondary Forests, and Primary Forests

Ohta, Seiichi; Morisada, Kazuhito; Tanaka, Nagaharu; Kiyono, Yoshiyuki; Effendi, Syarif

doi:10.1007/978-4-431-67911-0_4

Cited by 20 publications

(17 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the present study, a high positive correlation was observed between Total C and clay contents in both the surface soils and subsurface soils: = 0.832 * * and = 0.880 * * (data not shown), respectively. This indicated that they are ascribable to soil organic matter stabilization by the stable organomineral complexes formation [48,49]. However, the results of standardized multiple regression analysis showed no correlation between CEC values and either Total C or clay contents in either surface (CEC = 0.211 Total C − 0.057 clay ( = 0.167)) or subsurface soils (CEC = 0.504 Total C + 0.199 clay ( = 0.686)).…”

Section: Soil Texture Organic Matter and Cation Exchangementioning

confidence: 93%

Association between Soil Fertility and Growth Performance of Planted Shorea macrophylla (de Vriese) after Enrichment Planting at Rehabilitation Sites of Sampadi Forest Reserve, Sarawak, Malaysia

Perumal

Wasli

Ying

et al. 2017

International Journal of Forestry Research

View full text Add to dashboard Cite

A study was conducted to determine the status of soil properties after enrichment planting in comparison to an adjacent secondary forest and to evaluate the effect of enrichment planting of Shorea macrophylla (de Vriese) on the soil fertility status with special reference to Soil Fertility Index (SFI) and Soil Evaluation Factor (SEF) at Sampadi Forest Reserve, Sarawak. The study sites were stands rehabilitated in different years (1996: SM96; 1997: SM97; 1998: SM98; 1999: SM99) and secondary forest (SF). Findings indicated that the soils at rehabilitation sites and SF were strongly acidic in nature, with pH less than 5.50, poor soil exchangeable bases, and nutrient status. The soils were relatively of sandy clay loam to sandy clay. Principal Component Analysis revealed the three most significant components of the soil properties which explained 76.3% of the total variation. At surface soils, SFI was correlated with tree growth parameters of S. macrophylla, indicating that SFI is an applicable soil quality index as compared to SEF. Notwithstanding, a significant association was found between soil available phosphorus and planted S. macrophylla, indicating that soil phosphorus is a better indicator than SFI. Further studies on other environmental factors influencing tree growth performance, early establishment of experimental reforestation at nursery, and field should be implemented to obtain the initial data on seedling growth performance prior to outplanting.

show abstract

Section: Soil Texture Organic Matter and Cation Exchangementioning

confidence: 93%

Association between Soil Fertility and Growth Performance of Planted Shorea macrophylla (de Vriese) after Enrichment Planting at Rehabilitation Sites of Sampadi Forest Reserve, Sarawak, Malaysia

Perumal

Wasli

Ying

et al. 2017

International Journal of Forestry Research

View full text Add to dashboard Cite

show abstract

“…This topography is common in the lowlands of East Kalimantan. The geology of the study area is characterized by Tertiary sedimentary rocks of various textures (Ohta et al, 2000), and the soils are classified mainly as ultisols. From 1993 to 1997, the annual rainfall averaged about 1800 mm, and the mean temperature averaged approximately 28 C. There used to be dipterocarp forests with aboveground biomass of 509 t/ha (Yamakura et al, 1986a) in this area.…”

Section: Study Areamentioning

confidence: 99%

Allometric equations for pioneer tree species and estimation of the aboveground biomass of a tropical secondary forest in East Kalimantan

Hashimoto

Tange

Masumori

et al. 2004

Tropics

View full text Add to dashboard Cite

To estimate the aboveground biomass of tropical secondary forests dominated by pioneer species, allometric equations to relate diameter at breast height with the dry mass of the aboveground organs of several pioneer species were developed. The aboveground biomass of secondary forests was estimated using four methods based on the allometric equations. Biomass estimated with an allometric equation for all species combined was equivalent to that estimated with species-specific allometric equations. However, the estimated biomass based on a general-purpose allometric equation was substantially higher than that using other allometric equations. The allometric equation for all species combined is suitable for estimating the biomass of a secondary forest from the view points of accuracy and labor.

show abstract

“…The rehabilitation of the degraded forest ecosystems, which is one of the major tasks in the tropics within both regional and global contexts (Laurance 1999), requires well-understanding of the soil conditions (Ohta 1990;Ohta et al 2000). Although several studies on the soil properties of tropical rainforests in Sarawak, Malaysia, have been conducted (Beckett and Hopkinson 1961;Wood and Beckett 1961;Ishizuka et al 1998), information about the soil properties under degraded vegetation is rather limited (Ishizuka et al 2000).…”

mentioning

confidence: 99%

Soil Characteristics under Three Vegetation Types Associated with Shifting Cultivation in a Mixed Dipterocarp Forest in Sarawak, Malaysia

Hattori

Sabang

Tanaka

et al. 2005

Soil Science and Plant Nutrition

View full text Add to dashboard Cite

In order to provide appropriate soil information for the rehabilitation of tropical rainforest ecosystems, we examined the soil morphological, physico-chemical, mineralogical proper ties and charge characteristics in a degraded mixed dipterocarp forest with three type of vegetation, namely grassland, secondary forest, and remnant forest in Japan Sarawak Friendship Forest, Sarawak, Malaysia. We compared the soil properties at six representative locations Mering in topography and vegetation types, with special reference to the effect of anthropogenic activities on the catenary sequence. All the soils were acidic or weakly acidic. Contents of clay, exchangeable Al, Alo, Ald and Fed and the values of the cation exchange capacity and Al saturation increased with depth. The clay mineral composition was dominated by kaolin minerals. The value of point of zero salt effect ranged from 3.0 to 4.0, indicating that the soil was not yet strongly weathered. A catenary sequence of the soils was observed; softer in soil hardness, higher contents of total exchangeable bases in the lower slope plots than in the upper slope plots and higher values of Feo/Fed in the surface horizon in the lower slope plots than in the upper slope plots. However, the effect of anthropogenic activities was observed; higher contents of total exchangeable bases in the grassland than in the other vegetation types. Based on the stable condition on weather ing and erosion, the upper slope plot of the remnant forest exhibited a thicker 0 horizon, lower Feomed values and a relatively high amount of chlorite. Soil variability should be taken into account for appropriate management of rehabilitation in tropical rainforests.

show abstract

Are Soils in Degraded Dipterocarp Forest Ecosystems Deteriorated? A Comparison of Imperata Grasslands, Degraded Secondary Forests, and Primary Forests

Cited by 20 publications

References 5 publications

Association between Soil Fertility and Growth Performance of Planted Shorea macrophylla (de Vriese) after Enrichment Planting at Rehabilitation Sites of Sampadi Forest Reserve, Sarawak, Malaysia

Association between Soil Fertility and Growth Performance of Planted Shorea macrophylla (de Vriese) after Enrichment Planting at Rehabilitation Sites of Sampadi Forest Reserve, Sarawak, Malaysia

Allometric equations for pioneer tree species and estimation of the aboveground biomass of a tropical secondary forest in East Kalimantan

Soil Characteristics under Three Vegetation Types Associated with Shifting Cultivation in a Mixed Dipterocarp Forest in Sarawak, Malaysia

Contact Info

Product

Resources

About