Li Qiu-shuang, Zhang Chao, Wang Fei, Lai Li-ming, Zhang Li, Li Wen-ting, Bai Hua, Zheng Yuan-run
State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China.
Ying Yong Sheng Tai Xue Bao. 2009 Sep;20(9):2105-10.
Five sites along the precipitation gradient (336-249 mm x a(-1)) from east to west in Ordos Plateau were selected to study the spatial distribution pattern of Artemisia ordosica population and its responses to the precipitation gradient by the methods of variance mean ratio, aggregative index, and point pattern analysis. The reduction of precipitation affected the spatial distribution pattern of A. ordosica population significantly. With decreasing precipitation gradient, the spatial pattern of A. ordosica population changed from uniform to random in small scale, and from random to clumpy in large scale, suggesting that in the ecological restoration of Ordos Plateau, a rational arrangement of A. ordosica should be made.
沿鄂尔多斯高原自东向西的降水梯度（336 - 249 mm·a⁻¹）选取了5个样地，采用方差均值比、聚集度指标和点格局分析方法，研究了油蒿种群的空间分布格局及其对降水梯度的响应。降水量的减少对油蒿种群的空间分布格局有显著影响。随着降水梯度降低，油蒿种群的空间格局在小尺度上由均匀分布变为随机分布，在大尺度上由随机分布变为聚集分布，这表明在鄂尔多斯高原生态恢复中，应合理安排油蒿的种植。
