Function and value of water conservation in different age classes of Acacia mangium plantations |
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| Authors: | Bin He Wuming Qin Qingbiao Wu Jun Dai Yong Huang Feng Liu |
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| Institution: | (1) Forestry College of Guangxi University, Nanning, 530004, China;(2) Gaofeng Forestry Farm of Guangxi, Nanning, 530001, China;(3) Guangxi Forestry Surveying and Planning Institute, Nanning, 530011, China |
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| Abstract: | For this paper, we studied the water-holding capacity of canopy, vegetation layer under canopy and litter layer, the water-holding
capacity and permeability of soil as well as their changes with growth of stands in Acacia mangium plantations of three different age classes (four-, seven-and 11-year-old). Results show that total water-holding above ground
in the order of 11-year stand age (52.86 t/hm2)>seven-year stand age (41.90 t/hm2)>seven-year stand age (25.78 t/hm2), the increment tendency increased with stand age. Similar sequence also obtained on the water-holding capacity and permeation
capacity of soil (0–40 cm). The total water-storage capacity both above ground and soil in four-year-old, seven-year-old and
11-year-old of A. mangium plantations were 2,023.0, 2,158.4 and 2,260.4 t/hm2, respectively, and the all value of water conservation were 1,372.70, 1,474.42 and 1,549.91 yuan (RMB)/hm2, respectively. Therefore, A. mangium plantation had a good ability to modify soil structure and good water conservation function.
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Translated from Journal of Soil and Water Conservation, 2006, 20(5): 5–8, 27 译自: 水土保持学报] |
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| Keywords: | Acacia mangium plantation age classes water conservation function |
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