| 生物土壤与生态 |
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| Effects of Soil Texture and Soil Burial Depth on Seedling Emergence Rates of the Major Associated Species in Nitraria Communities |
| MA Quan-lin1,2, LI Xin-rong2, LIU You-jun1, ZHANG De-kui1, HE Ming-zhu2, WEI Lin-yuan1 |
| 1.Gansu Key Laboratory of Desertification Combating, Gansu Desert Control Research Institute, Lanzhou 730070, China; 2.Shapotou Desert Research and Experiment Station, Cold and Arid Regions Environmental and Engineer Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China |
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Abstract Sophora alopecuroides, Limonium aureum, Artemisia sphaerocephala, Artemisia ordosica and Reaumuria soongorica are the major associated species in Nitraria communities in the lower reaches of Shiyang River. The seedling emergence rates of those species at different soil textures and soil burial depths were researched under field condition in order to introduce excellent plant species used for the restoration of the degraded Nitraria vegetation. Results showed that the seedling emergence rates of the major associated species in Nitraria communities were all low under field condition, but their seedling emergence abilities were obviously different. Soil texture only had significant influence on the seedling emergence rates of S. alopecuroides, L. aureum and A. sphaerocephala, but soil burial depth had significant influence on the seedling emergence rates of S. alopecuroides, L.aureum, A. sphaerocephala, A. ordosica and R. soongorica. The mean seedling emergence rates of S. alopecuroides at different soil textures and burial depths were the biggest, those of R. soongorica, L.aureum and A. sphaerocephala were second, and that of A.ordosica were the lowest. The species with the highest seedling emergence rate at sandy soil was A. sphaerocephala, at sandy loam soil was L.aureum, and at clay soil was R. soongorica. The optimal soil burial depth was 1.0—2.0 cm for S. alopecuroides, and 0.5 cm for L.aureum, A. sphaerocephala, A.ordosica and R.soongorica. The results indicated that the selection of adaptive species and artificial promoting technologies were vital for restoration of the degraded Nitraria vegetation.
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Received: 09 October 2010
Published: 20 November 2011
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Cite this article:
MA Quan-lin;LI Xin-rong;LIU You-jun;ZHANG De-kui;HE Ming-zhu;WEI Lin-yuan. Effects of Soil Texture and Soil Burial Depth on Seedling Emergence Rates of the Major Associated Species in Nitraria Communities. JOURNAL OF DESERT RESEARCH, 2011, 31(6): 1423-1429.
URL:
http://www.desert.ac.cn/EN/ OR http://www.desert.ac.cn/EN/Y2011/V31/I6/1423
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2011, Vol. 31 
