摘要
提出了面状和线状水源的点化方法,点化后的水源称为水源单位。在对阿城市全部河流、水库构造了水源单位后,计算其独占圆,每一个水源单位的独占圆代表该水源单位管辖(服务)的空间范围,独占圆越大,它管辖(服务)的范围也越大,说明水源需求量大;反之则说明水源需求量小。根据独占圆可求出阿城市水源均匀度,并对水源单位的格局进行检验,其结果为集聚格局,该格局可能是由阿城市的地形异质性造成的。根据水源单位独占圆可以判断出阿城市水源少的区域,利用2-1原理在缺水区域寻求新的水源单位,使水源均匀度增加,从而使水源分布均匀。
The method with which water source can be changed into point is put forward, and the changed point is called as point water unit. The point water unit of Acheng city was constructed, and then the monopolized circle was calculated. The monopolized circle of every point water unit represents a region that can be administered （or served）. The bigger the monopolized circle is, the more the water source demand, and vice verse. The evenness index of Acheng water source was obtained according to the monopolized circle, with that the pattern of the water source was tested. Result showed that the pattern of the water source in Acheng city is convergent due to the topographical heterogeneity, and this area is lack of water judging form the monopolized circle. The new point water unit can be searched by √2 - 1 rule in order to obtain an increased evenness index and a evener water distribution.
出处
《东北林业大学学报》
CAS
CSCD
北大核心
2006年第4期67-69,共3页
Journal of Northeast Forestry University
关键词
均匀度
水源单位
独占圆
Evenness indexes
Point water unit
Monopolized circles
