| Effects of shrub density on growth of artificial Salix psammophila and soil moisture dynamics in Mu Us sandy land |
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| DOI：10.7606/j.issn.1000-7601.2012.01.34 |
| Key Words: Salix psammophila planting density soil moisture dynamics biomass |
| Author Name | Affiliation | | AN Hui | Key Laboratory of Restoration and Reconstruction of Degraded Ecosystem in Northwestern China of Ministry of Education, United Center for Ecology Research and Bioresource Exploitation in Western China, Ningxia University, Yinchuan, Ningxia 750021, China | | WANG Junbo | Key Laboratory of Restoration and Reconstruction of Degraded Ecosystem in Northwestern China of Ministry of Education, United Center for Ecology Research and Bioresource Exploitation in Western China, Ningxia University, Yinchuan, Ningxia 750021, China | | AN Yu | Institute of Desertification Control, Ningxia Academy of Agriculture and Forestry Sciences, Yinchuan, Ningxia 750002, China |
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| Abstract: |
| The patterns of the growth of artificial Salix psammophila shrubs and soil moisture in Mu Us sandy land was compared under different planting density during growing season. The experiment density included 0.2 plants/m2, 0.6 plants/m2 and 0.8 plants/m2. The results showed that plant
ing density had significant effect on the patterns of the growth of artificial Salix psammophila shrubs. With the increasing of planting density, the plant height, average canopy, aboveground biomass, leaf biomass and stem biomass of Salix psammophila shrubs decreased after an initial increase. Planting density had significant effect on the soil moisture dynamic of artificial Salix psammophila shrubs. Soil moisture of Salix psammophila shrubs increased and then decreased with increasing of planting density, and the inflection point of the curve appeared in 0.6 plants/m2 density. The optimal density of artificial Salix psammophila shrubs was found to be approximately 0.6 plants/m2, because the best growth of Salix psammophila shrubs was in this density treatment. |
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