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| Spatial heterogeneity of vegetation in artificially fenced area in Liuyangpu of Yanchi County in Ningxia |
| Wang Zhishu, Zhang Kebin, Wang Xiao |
| College of Soil and Water Conservation, Beijing Forestry University, 100083, Beijing, China |
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Abstract The community characteristics, including species composition, species diversity, biomass, and spatial distribution, of the artificially fenced area in Liuyangpu of Yanchi County in Ningxia were analyzed using the power-law method. The results showed that:1) the spatial heterogeneity of vegetation of three different fenced areas fit the power-law well and exhibited a strongly heterogeneous distribution than a random distribution. 2) The spatial heterogeneity index followed the order of edge area > core area > outside area, and the average biomass ranked as edge area > outside area > core area. The results indicate that fencing is an effective measure to improve the condition of the grassland, but it is suggested that appropriate razing or cutting could be used according to the state of the grassland.
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Received: 03 March 2014
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