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| Stumping and Rejuvenating Techniques for Natural Ammopiptanthus mongolicus |
| DONG Xue1,2, YU Yi1, GAO Yong3, YANG Yonghua4, CHAO Gejile5, GAO Jianbin4 |
1. International Centre for Bamboo and Rattan, Beijing 100102, China;
2. Desert Forestry Experimental Center, China Academy of Forestry Sciences, Bayannur 015200, China;
3. Institute of Ecological Environment, Inner Mongolia Agricultural University, Hohhot 010019, China;
4. Western Ordos National Nature Reserve, Ordos 016100, China;
5. Ordos Forestry Bureau, Ordos 017000, China |
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Abstract: Natural Ammopiptanthus mongolicus in the desert region plays an important role in maintaining natural ecological balance, thus having high research value. Because of multiple factors, however, it has become endangered plant. For protecting and optimizing the population structure of this plant, it is important to explore the rejuvenation techniques. The stumping experiment was carried out on A. mongolicus in the western Ordos National Nature Reserve under different stumping heights, ground diameters, and treatments. The results show that the growth increment of new branches had apparent negative correlation with stumping heights, but had apparent positive correlation with stubble diameters. The appropriate stubble height for natural A. mongolicus was 3 cm. After the second growing season, the plant height was 44.5 cm, and the average quantity of new germinated branches was 37.4, 5.9 times of the control. After two years' growth, the length of new germinated branches reached 45.9 cm, an increase of 33.2 cm compared with that of the control, and the base diameter reached 9.98 mm. Treatment of different A. mongolicus brush had better effects than that of the same brush. The appropriate stubble diameter was 15.09-19.95 mm, and painting the stubble side helps to rejuvenate the plant.
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Received: 08 April 2014
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2014, Vol. 32 
