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作 者 ：周新华,孙中伟

期 刊 ：生态学报 1994年 14卷 1期 页码：24~31

关键词：防护林；景观生态；空间布局；宏观度量；宏观评价；经营。；

Keywords:shelterbelt, landscape ecology, spatial pattern, measurement in macro-cosm, evaluation in macrocosm, management.,

摘 要 ：为通过对林网在景观中布局进行度量与评价而探讨在宏观上确定经营林网主要方向的依据，根据景观生态学原理，研究了适合于度量林网在景观中布局的数量、分布以及成型状况等景观指标─—林网带斑比、优势度、连接度和环度。提出了用由林网建设方案得到的林网结构参数计算林网合理景观指标值和用由调查得到的现有林网结构参数计算现有林网实际景观指标值的方法；讨论了用这两套林网景观指标值对现有林网布局进行评价，在宏观上确定经营林网主要方向的方法。最后，以对吉林省农安县前岗乡林网现状进行度量与评价为例，示范了本文研究结果的应用。

Abstract:In order to probe the basis of determining orientation for managing the shelterbelt net-works on large scale by measuring and evaluating the spatial pattern of the network in land-scape,the landscape indexes that are appropriate to describe quantity,distribution,and in-tegrity of the networks are studied on the basis of Landscape Ecology.The indexes,ratio ofbelt to patch,dominance,connectivity,and ring,are defined as fitting in with the needs ofmeasuring the spatial pattern of the networks in landscape.The m...

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