| 单词 | shelter wood |
| 释义 | > as lemmasshelter wood shelter wood n. trees left standing to provide shelter in which saplings can grow; frequently attributive. ΘΚΠ the world > plants > by growth or development > defined by habit > tree or woody plant > cultivated or valued > [noun] > shade- or shelter-tree nurse1788 nurse-tree1805 shade-tree1806 wind-break1861 shelter belt1869 shelter tree1884 shelter wood1889 wind-belt1903 the world > plants > by growth or development > defined by habit > tree or woody plant > cultivated or valued > [adjective] > providing shelter shelter wood1889 1889 W. Schlich Man. Forestry I. ii. 208 The wood is created, or regenerated, under the shelter of the whole or part of the old crop, which forms the shelter-wood. 1891 W. Schlich Man. Forestry II. 135 The old or shelter-wood gradually makes way for, and is replaced by, the new crop. 1928 R. S. Troup Silvicultural Syst. vii. 82 The original idea underlying the adoption of the shelter-wood strip system was the necessity for working against the prevailing westerly wind, so that the newly exposed edges of mature woods should always be protected from it. 1979 Sci. Amer. Feb. 71/3 The final system is called shelterwood cutting, because the mature stand is removed in two or more partial cuts so that the new stand can become established under the shelter of a partial canopy of remaining trees. < as lemmas |
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