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It's basically a (rough) description of the relative wind speed on the site compared to the local average. If a site is sheltered, it will typically experience: lower wind speeds, potentially warmer mean temperatures, and (in temperate zones) a lower risk of frost (although some sites may actually have an increase due to catabatic airflow: "frost hollows") ...


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Depends on the context. Examples can be: In depressions instead of lonely on the plain, inside of the forest instead of at the edge, along a river bank or lakeside instead of on dry ground. Or, in short: exposed to wind & weather instead of sheltered from the rigour. Also depends on the tree. Some pioneer trees can grow individually in adverse ...


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