[1]DU Jiaojiao,ZHOU Yunchao,BAI Yunxing,et al.Research of Soil Hydrophysical Properties of Pinus Massoniana Plantation After the Introduction of Broad-Leaved Tree Species[J].Research of Soil and Water Conservation,2021,28(04):105-112.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
28
Number of periods:
2021 04
Page number:
105-112
Column:
Public date:
2021-08-10
- Title:
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Research of Soil Hydrophysical Properties of Pinus Massoniana Plantation After the Introduction of Broad-Leaved Tree Species
- Author(s):
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DU Jiaojiao, ZHOU Yunchao, BAI Yunxing, ZHANG Xunyuan
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(Guizhou Key Laboratory of Plateau Mountain Forest Cultivation, Guizhou Provincial Forest Resources and Environment Research Center/College of Forestry, Guizhou University, Guiyang 550025, China)
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- Keywords:
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Pinus massoniana; broadleaf tree; soil hydro-physics; coordinate comprehensive evaluation
- CLC:
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S714.2
- DOI:
-
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- Abstract:
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In order to explore the soil hydrophysical properties of Pinus massoniana plantation after the introduction of broad-leaved tree species, the Pinus massoniana pure forest and the mixed forest stands of Pinus massoniana after the introduction of broad-leaved tree species(Bretschneidera sinensis, Manglietia guinanensis, Cercidiphyllum japonicum, Michelia maudiae, Camellia oleifera)in Longli Forest Farm of Guizhou Province were selected as the research objects, and the forest soils characteristics and hydrological characteristics of the different stand types were studied quantitatively through by ring knife method, drying method and indoor soaking method. The results showed that:(1)the soil bulk density of different forest types increased with the depth of soil layer; the soil bulk density of Pinus massoniana and Michelia maudiae(1.29 g/cm3)mixed forest was the smallest, and that of Pinus massoniana and Cercidiphyllum japonicum(1.54 g/cm3)mixed forest was the largest;(2)soil total porosity, capillary porosity, non-capillary porosity, soil maximum water holding capacity, capillary water holding capacity and field water holding capacity all decreased with the increase of soil layer, which was consistent with soil porosity and water holding capacity;(3)compared with the Pinus massoniana pure forest, the introduction of deep-rooted tree species had the positive influence on soil bulk density, porosity and water holding capacity; for example, Pinus massoniana and Michelia maudiae was the best, followed by Pinus massoniana and Camellia oleifera mixed forest, and the worst was Pinus massoniana and Cercidiphyllum japonicum mixed forest. From the perspective of soil hydrophysical characteristics, in the course of the future construction of Pinus massoniana soil and water conservation forest, the introduction of deep root tree species with easy decomposition of litter can be preferred, which is helpful for the improvement of soil structure and the forest to better play its ability of soil hydrologic regulation, meanwhile, the introduction of shallow root tree species can be avoided as far as possible.