| Influence of soil salinity on vegetation distribution pattern in the Delta Oasis of Weigan and Kuqa Rivers |
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| DOI：10.7606/j.issn.1000-7601.2011.01.40 |
| Key Words: the Delta Oasis of Weigan and Kuqa Rivers soil salinity halophytic vegetation distribution pattern |
| Author Name | Affiliation | | WANG Xuemei | College of Geography Science and Tourism, Xinjiang Normal University, Urumqi 830054, China
College of Resources and Environment Sciences, Xinjiang University, Urumqi 830046， China | | CHAI Zhongping | College of Pratacultural and Environmental Science, Xinjiang Agricultural University, Urumqi 830052, China | | Tashpolat·Tiyip | College of Resources and Environment Sciences, Xinjiang University, Urumqi 830046， China |
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| Abstract: |
| The distribution changes of Halophytic Vegetation were studied by two-way indicator species analysis(TWINSPAN) and fuzzy set ord
ination(FSO) in the Delta Oasis of the Weigan and Kuqa Rivers. The results indicated that community Ⅴ with Tamarixram osissina and Phragm ites australis as the dominant species has the strongest ability of adapting to saline, and community Ⅲ made up of Tamarixram osissina, Halostachys caspica and Halocnemum strobilaceum as altogether the dominant species has the strong ability of adapting to saline, while community Ⅳ with Haloxylon ammodendron as single dominant species has weak ability of adapting to saline, and the other communities were the middle type. Tamarixram osissina and Halostachys caspica under high salty environment has very strong inter-specific competition ability, which are dominant plants under the oasis soil salinity; Phragm ites australis which has very strong ecological adaptivity becomes an important companion species in other communities frequently. It is also believed that the soil salinity is the main soil chemical factor determining the distribution patterns of halophytic vegetation. |
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