|
|
Soil water storage efficiency of different stand types in Sandy Mountain of Shandong Province |
Hu Jianpeng, Yang Jihua, Luo Mingda, Li Xingchen |
Shandong Province Key Laboratory of Soil Erosion and Ecological Restroration,College of Forestry, Shandong Agricultural University,271018,Taian,Shangdong, China |
|
|
Abstract The study on soil water storage of five stand types were conducted in Soil and Water Conservation Experiment Station of Linqu County. The results show that: Robinia pseudoacacia Linn., Acer mono Maxim. and Pistacia chinensis Bunge. stands of more litter layer, which improved soil physical and chemical properties and increased soil water storage capacity after decomping. Compared to control, the increased saturated water storage in Robinia pseudoacacia Linn. was the largest by 549.8m3/hm2, followed by Acer mono Maxim. and Pistacia chinensis Bunge., 416.9 and 392.3m3/hm2 respectively, and in conifers species such as Pinus thunbergii Parl., Platycladus orientalis (Linn.) Franco were relatively not so much by 257.9m3/hm2 and 223.7m3/hm2 correspondingly. The correlation analysis between the amount of decomposed litter layer and 0-20cm soil physical and chemical properties shows that: the amount of decomposed litter layer were extremely significant correlated with soil organic matter content and soil noncapillary porosity, significantly associated with soil bulk density and total soil porosity, but not significantly related to the soil capillary porosity. The soil water storage efficiency of the five different stands decreased in the order of Robinia pseudoacacia Linn., Acer mono Maxim., Pistacia chinensis Bunge., Pinus thunbergii Parl., Platycladus orientalis (Linn.)Franco.
|
Received: 15 March 2011
|
|
|
|
|
|
|