[1]YU Yanghua,LI Guangrong,YAN Lingbin,et al.Soil Water Regulation Function in the Rhizosphere of Main Tree Species in the Upper Reaches of Chishui River[J].Research of Soil and Water Conservation,2015,22(05):284-288.
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Soil Water Regulation Function in the Rhizosphere of Main Tree Species in the Upper Reaches of Chishui River
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
22
Number of periods:
2015 05
Page number:
284-288
Column:
Public date:
2015-10-28
- Title:
- Soil Water Regulation Function in the Rhizosphere of Main Tree Species in the Upper Reaches of Chishui River
- Keywords:
- tree rhizosphere soil; hydrological function; regulate soil water; functional group; upper reaches of Chishui River
- CLC:
- S152.7;S715.7
- DOI:
- -
- Abstract:
- In order to understand the soil water regulation ability in rhizosphere of main tree species in the upper reaches of Chishui River, through field sampling and experimental analysis method, study on ecohydrological function was carried out based on the bulk density, water content, porosity and other aspects, and the division of water regulation function groups. The results showed that the maximum water holding capacity of 32 species in 0—60 cm layer is about 212.00~357.94 mm, available water content ranged from 11.07 mm to 85.15 mm, was the reservoir; water holding rate was greater than the rate of water loss, and the relationship between the two and the time followed the power function model. Using RDA ordination, tree species in this area could be divided into 5 types of functional group. Functional group Ⅰincluded Myricaceae rubra, Castanopsis fargesii, Camellia sinensis, Quercus aliena, Pinus massoniana and Neosino calamus affinis. Functional group Ⅱ included Populus trinervis, Cunninghamia lanceolata, Broussonetia papyifera, Viburnum chinshanense, Bambusa pervariabilis, Liquidamba formosana, Pyracantha fortuneana, Lindera glauca, Sapium sebiferum, Melia azedarach and Coriaria nepalensis. Functional group Ⅲ included Eriobotrya bengalensis, Nandina domestica, Prunus nalicina, Cupressus funebris, Platanus acerifolia and Toona sinensis. Functional group Ⅳ included Loropetalum chinense, Vitex negundo, Vernicia fordii, Mallotus barbatus and Choerospondias axillaria. Functional group Ⅴ included Rhus chinensis, Pistacia chinensis, Citrus reticulata and Camellia oleifera. Physical characteristics like soil bulk density, water content and porosity and water holding process are the key factors which affect the ability of regulation of soil hydrology. The results can provide theoretical basis for the selection and configuration of tree species in the water conservation forest of upper Chishui River.
- References:
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