Soil hydro-physical properties under broadleaved Korean pine and dark coniferous forests on northern slope of Changbai Mountains
Yang, H.; Li, Z.; Pei, T-fan.; Wang, A-zhi.; Jin, C-jie.; Zhu, J-jun.
Ying Yong Sheng Tai Xue Bao 18(2): 272-276
2007
ISSN/ISBN: 1001-9332 PMID: 17450726 Document Number: 611554
The measurement of soil hydro-physical properties under broadleaved Korean pine and dark coniferous forests on the northern slope of Changbai Mountains showed that under these two forest types, soil bulk density and porosity had the same variation trend with increasing soil depth, i. e., bulk density and capillary porosity increased, while total porosity and non-capillary porosity decreased. The average bulk density, total porosity, capillary porosity and non-capillary porosity in 0-100 cm soil layer were 1. 41 g center dot cm(-3) 52. 31%, 46. 11 % and 6. 20% under broadleaved Korean pine forest, and 0. 98 g center dot cm 50. 65 %, 40. 32 %, 10. 33 % under dark coniferous forest, respectively. Owing to the differences in soil hydro-physical properties, the water storage capacity in 0-100 cm soil layer was 619. 89 t center dot hm(-2) under broadleaved Korean pine forest, but 1 033. 05 t center dot hm(-2) under dark coniferous forest. For these two forests, their soil water characteristic curves were consistent. with the general one.