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首页> 外文期刊>Global Ecology and Conservation >Influences of planning unit shape and size in landscapes dominated by different land-cover types on systematic conservation planning
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Influences of planning unit shape and size in landscapes dominated by different land-cover types on systematic conservation planning

机译：不同土地覆盖类型主导的景观规划单位形状和大小对系统保护规划的影响

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摘要

The shape and size of planning units (PUs) at the initial stage of regional systematic conservation planning (SCP) can strongly affect the final portfolio. In previous studies, the influence of PU shape and size has typically been considered for single study sites that include mainly natural land cover types. The impacts of PU shape and size in areas dominated by different land cover types have not been compared. We identified and compared the influence of three types of land uses, and shape and size of PUs in the efficiency of final portfolios in SCP. We show that PU shape is not significant for portfolio efficiency in all areas dominated by different land cover types, while smaller size of PUs would be more useful in the heterogeneous landscapes like agricultural and urban areas than the homogeneous landscapes like forest. We also show that the magnitude of the influences of PU shape and size differs depending on the dominant land cover type. Areas dominated by agricultural land cover were the most sensitive to the influence of PU shape and size, whereas areas dominated by forest were the least sensitive. Therefore, we recommend to planners to understand the different impacts of PU shape and size by the dominant land cover type and consider a similar approach with this study.
机译：区域系统保护规划（SCP）初始阶段的规划单位（PU）的形状和规模会严重影响最终的投资组合。在以前的研究中，通常会考虑将PU形状和尺寸的影响用于主要包括自然土地覆盖类型的单个研究地点。尚未比较PU形状和尺寸对以不同土地覆盖类型为主的区域的影响。我们确定并比较了三种土地利用类型，PU的形状和大小对SCP最终投资组合效率的影响。我们发现，在所有以不同土地覆盖类型为主的地区，PU形状对于投资组合效率均不显着，而较小尺寸的PU在农业和城市地区等异质景观中比森林等均质景观更有用。我们还表明，PU形状和尺寸影响的大小取决于主要的土地覆盖类型。以农业用地覆盖为主的地区对PU形状和大小的影响最敏感，而以森林为主的地区最不敏感。因此，我们建议规划人员了解主要土地覆盖类型对PU形状和尺寸的不同影响，并考虑与本研究类似的方法。

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