【摘要】 应用地统计学原理和方法研究了宁夏围栏内野生蒺藜种群的空间分布格局及其空间相关关系。结果表明:宁夏野生蒺藜种群的分布格局主要受随机因素(如土壤、水分、动物)等的影响,且样点内蒺藜株数与距离具有相关关系,相关范围在0～61.5m,野生蒺藜的有性繁殖方式和土壤质地的空间异质性是导致蒺藜空间分布格局的重要原因。更多还原

【Abstract】 The distribution pattern and spatial correlation of Tribulus terrestris L. population in Ningxia are studied by using the theory of geostatistics. The results show that distribution patterns of the tribulus terrestris are influenced by random fac- tors ( eg soil,water and animals) in Ningxia. When the space between tribulus terrestris clusters is within 0 to 61. 5 m,the plant numbers show an autocorrelation with the sample spot. The sexual reproduction and spatial herterogeneity of the soil quality are the main contribution factors to the spatial herterogeneity of tribulus terrestris.更多还原