They are supported every two meters by thick Douglas pine wood battens -outdoor resistant tree specie -.

它们由每隔两米的厚道格拉斯松木压条所支撑——一种户外的耐抗树种。

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Contains: organic essential oil of lemongrass, pine Douglas and juniper berry in a blend of organic sunflower, soybean, almond and macadamia carrier oils.

精油配方：有机香茅，道格拉斯松木，杜松，向日葵油，大豆油，杏仁油，夏威夷坚果油。

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In 2002 a fire in Oregon's Six Rivers and Siskiyou national forests scorched 500, 000 acres of Douglas fir and ponderosa pine.

FORBES: Hug a Dead Tree Today

Mr. WALLY COVINGTON (Northern Arizona University): To try to extrapolate results from hemlock, Douglas fir, western ridge cedar to Ponderosa pine or to loblolly pine is nuts.

NPR: Study: Salvage Logging Boosts Forest-Fire Threat

The Douglas fir, which produces more seeds than the Ponderosa pine but is much less tolerant of drought or fire, did especially well.

ECONOMIST: Fire in the west: Another costly war that America can never win? | The