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| Sprouting capacity of artificial <i>Hippophae rhamnoides</i> forest in soft sandstone areas |
| Hu Jianzhong1,Du Wenyan1,Yin Liqiang1,Guo Hai1,Liu Liying2,He Jingliang3,Guo Jianying3,Xia Bo3 |
| 1.Plant Development Center for Soil and Water Conservation,Ministry of Water Resources,100038;2.Chinese Academy of Forestry,100091;3.College of Soil and Water Conservation,Beijing Forestry University,100083: Beijing,China |
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Abstract For a quick method to controlling the soft sandstone areas,the author investigated the sprouting capacity of newly planted Hippophae rhamnoides forest in Zhungar township through the method of sample plot.The result shows that Hippophae rhamnoides has strong capability of sprouting,for example,2-8 years' artificial Hippophae rhamnoides forest can sprout 2 000-80 000 seedlings per hectare.The sprouting ability(SA) always changes with the age of stand,that is,the SA for 2-4 ages' forests increase gradually,and achieve the highest in 5-6 ages' forests,and gradually drop tendency for 7-8 years' forests.In the best site,like alluvial gully bed,the SA may reach 21 000 per hectare,one times higher than that of the bad site.In medium coverage of Hippophae rhamnoides(40%-70%),the SA appears to be the highest;whereas it drops rapidly for the coverage which is higher than 70% or lower than 40%.Thereby the SA can be used in the rehabilitation practice in order to reduce the original plantation density effectively,and seedling and planting costs as well,and restore the vegetation rapidly,economically,and effectively in the area for harnessing the severe soil and water losses.
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Received: 12 January 2009
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