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| Soil Water Reserves Changes in Loess Hilly-gully Region |
| Cheng Yiben1,2, Xiao Honglang1, Li Shuang1,2 |
1. Key laboratory of Ecohydrology and Inland River Basin, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China;
2. University of Chinese Academy of Sciences, Beijing 100049, China |
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Abstract Tamarix chinensis has astrong tolerance to the drought stress, salt stress, wind erosion stress, and it is widely distributed in arid-desert areas of northwest China for ecological restoration. We studied a 10-years-old cultivated T. chinensis community with different planting density, and monitored the soil moisture around the root. From the quantitative study, soil moisture near the root could be divided into 3 groups: evaporated layer (0-40 cm), active layer(40-180 cm), stable layer(180-220 cm). And the classification changed in the planting space, as evaporated layer (0-40 cm), active layer (40-120 cm), stable layer (120-200 cm). Besides, along with the planting density' increasing, the inter-annual of soil water storage will change in shape of a parabola. Our results suggested that the appropriate planting space for the studied region could be 1 923 plants per hectare.
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Received: 19 January 2014
Published: 20 March 2015
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2015, Vol. 35 
