Correlation between soil physicochemical properties and vegetation parameters in secondary tropical forest in Sabal, Sarawak, Malaysia

1st International Conference on Tropical Studies and Its Application

Karyati, K.^1 ; Ipor, I.B.^2 ; Jusoh, I.^2 ; Wasli, M.E.^2

Faculty of Forestry, University of Mulawarman, Kampus Gunung Kelua, East Kalimantan, Samarinda

75119, Indonesia^1

Faculty of Resource Science and Technology, Universiti Malaysia Sarawak, Sarawak, Kota Samarahan

94300, Malaysia^2

关键词: Floristic diversity;    Physicochemical property;    Secondary forests;    Secondary tropical forests;    Soil physico-chemical properties;    Structure parameter;    Vegetation parameters;    Vegetation surveys;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/144/1/012060/pdf
DOI  :  10.1088/1755-1315/144/1/012060

来源: IOP

【 摘 要 】

The tree growth is influenced by soil morphological and physicochemical properties in the site. The purpose of this study was to describe correlation between soil properties under various stage secondary forests and vegetation parameters, such as floristic structure parameters and floristic diversity indices. The vegetation surveys were conducted in 5, 10, and 20 years old at secondary tropical forests in Sarawak, Malaysia. Nine sub plots sized 20 m × 20 m were established within each study site. The Pearson analysis showed that soil physicochemical properties were significantly correlated to floristic structure parameters and floristic diversity indices. The result of PCA clarified the correlation among most important soil properties, floristic structure parameters, and floristic diversity indices. The PC1 represented cation retention capacity and soil texture which were little affected by the fallow age and its also were correlated by floristic structure and diversity. The PC2 was linked to the levels of soil acidity. This property reflected the remnant effects of ash addition and fallow duration, and the significant correlation were showed among pH (H2O), floristic structure and diversity. The PC3 represented the soil compactness. The soil hardness could be influenced by fallow period and it was also correlated by floristic structure.