防护林布局的评价方法

Evaluation Method of the Layout of Protective Forests

应用景观生态学理论,以防护林分布数据为基础,地理信息系统为手段,选取林网在景观中布局的数量、分布以及成型状况等景观指标———林网带班比、连接度、环度及走向,对吉林省松原市防护林宏观布局进行研究。提出了用地理信息系统计算理想景观指标值及现实景观指标值的计算方法。

The shelterbelts distribution in Songyuan of Jilin province was studied based on the landscape ecology theory and data of shelterbelt distribution, With GIS, the shelterbelts quantity, distribution and shaped factors were selected, such as the ratio of belt to patch, networks connectivity, networks ring, and etc, Some methods of calculating ideal and practical landscape indexes in large area with GIS were also put forward.