| 2010年烟台沙漠学术研讨会论文选 |
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| Vegetation Recovery in Mongolian Pine Sand-fixing Belts in Response to Boundary Effect of Forest-Grassland |
| JIANG Li-na1,2, YANG Wen-bin2,3, YAO Yun-feng1, LU Qi2, DU Min4, WANG Lin-lin4 |
| 1.College of Ecology and Environment, Inner Mongolia Agricultural University, Hohhot 010019, China; 2.Institute of Desertification Studies, Chinese Academy of Forestry, Beijing 100091, China; 3.Institute of Forestry New Technology, Chinese Academy of Forestry, Beijing 100091, China; 4.Hailar Institute of Forest Research, Hulunbuir 021008, Inner Mongolia, China |
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Abstract A survey of vegetation diversity and recovery process in different Mongolian pine fixing sand belts was conducted in Baiyindai forestry centre, Hulunbuir City, Inner Mongolia, China. Its goal is to disclose the boundary ecological effect of forest and grassland, and clarify the effect of landscape boundary on vegetation restoration. The results show that there are two peaks of species richness and biomass change when the distance between neighboring forest belts was 24 meters; while there is only one peak when the distance between the belts is only 12 meters. Accordingly, the distance between belts should be no less than 12 meters. Herbage species richness and biomass will come into the maximum value when the distance between the belts vary from 16 meters to 28 meters. The vegetation restoration in the 12-m interval belt is poorer than that in the 24-m interval belt, and the vegetation restoration in the 24-m interval belt is poorer than that in natural vegetation. It show that the boundary effect accelerates the process of community succession. The boundary effect area of the pine forest belts is no more than 20 meters, and habitat heterogeneity is very obvious in the small scale. The duration of forest belt should not be more than 40 meters, otherwise the vegetation will be hard recovered because of not within the boundary effect area.
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Received: 30 August 2010
Published: 20 March 2011
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2011, Vol. 31 
