| Biology and Soil |
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| Influence of Groundwater Level on Community Characteristics of Liuwanlin Ecosystem in Mu Us Sandy Land |
| ZHANG Lin, YANG Jie, Hugejiletu, SONG Bing-yu, DING Yue-kui |
| College of Life Sciences/Inner Mongolia Key Laboratory of Grassland Ecology, Inner Mongolia University, Hohhot 010021, China |
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Abstract Based on the field survey data of typical plots and quadrats, the thesis researched the change of community types, species diversity and biomass of Liuwanlin ecosystem in Mu Us Sandy Land with cluster analysis method. Results indicate that as the groundwater level reduces, the community components of Liuwanlin ecosystem transit from Salixmicrostachya+Hippophae rhamnoides to Salix psammophila, and the Simpson index, Shannon-Wiener index, Margalef species abundance index, Pielou evenness index and biomass of community components of Liuwanlin ecosystem all present an obviously decreasing trend, and the correlation coefficients between the indices and the groundwater level are 0.837, 0.784, 0.617, 0.615, and 0.710, respectively. So groundwater level is one of the important factors which influence species biodiversity and productivity of the Liuwanlin ecosystem in the Mu Us Sandy Land.
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Received: 24 January 2012
Published: 20 September 2012
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2012, Vol. 32 
