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Research on the Speicies Diversity of Desert Steppe in  National Level Nature Protection Area of Helan Mountain of Ningxia(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2013年10期
Page:
87-91
Research Field:
Publishing date:

Info

Title:
Research on the Speicies Diversity of Desert Steppe in  National Level Nature Protection Area of Helan Mountain of Ningxia
Author(s):
ZHENG Guo-qi1; YANG Juan1; ZHANG Lei1; WANG Qiang-qiang1; HU Tian-hua2
1.College of Life Science，Ningxia University,Yinchuan，Ningxia 750021；
2.Administration Bareau of Helan Mountain National Natural Reserve,Yinchuan，Ningxia 750021
Keywords:
Ningxia; the Helan Mountain; national level nature protection area; upland meadow; plant diversity
PACS:
Q 948(243)
DOI:
-
Abstract:
The speicies diversity of the desert steppe and the grass savanna of the Helan Mountain which was one of the national level nature protection areas by surveying the sample plots were studied.The results showed that Ruqigou was the boundary of the species abundance index in the desert steppe.In the south，the species abundance index showed a gradual increase from south to north and reached the highest point in Chaqikou.While in the north，including Ruqigou，it showed a declining trend.The Simpson index of the Yushugou which was in the south of Helan Mountain as well as the Baisikougou and Chaqikougou which were in the middle of Helan Mountain was totally higher than it in the north part.It indicated that the species dominance in south and middle desert steppe was smaller than it in the north.That would had a close relatinship with the factor of the rainfall capacity in the different channel of Helan Mountains.

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Last Update: 2014-08-15