造林

On mountainous sites, grade Ⅰ or Ⅱ stands including land below the crown of the secondary broadleaf forest and the Chinese-fir plantation or east-facing, shady dry land could be considered for the plantation. The transmittance of crown in the areas should be 55%~60%. One-year-old high quality seedlings above 25 cm tall and 0.25 cm in diameter near the ground-level should be used. For high-yield, field cultivation, shading facility should be considered and seedlings of taller than 15 cm and greater than 0.15 cm in diameter near the ground should be applied. The appropriate density and sunlight transmittance ought to be 30 cm×30 cm and 50%, respectively.

结果表明，利用山地种植，选择透光率为55%~60%的Ⅰ、Ⅱ类立地的残次阔叶林和杉木林冠下，或地形隐蔽、东向的山垅旱地，选用苗高25 cm以上、地径0.25 cm以上的1年生优质苗木造林；利用农田进行庇荫设施高产栽培，应选用苗高在15 cm以上、地径0.15 cm以上规格的苗木栽植，适宜栽植密度为30 cm×30 cm，遮阳透光率在50%左右。

Poplars are one of the most important deciduous trees in the world. China is rich natural resource of poplars.

杨树是世界上广泛栽培的重要造林树种之一，我国是世界上杨树资源丰富的国家。

I intend that humans cease to deforest and reforest those regions that have been deforested.

我希望人类停止滥砍伐，并对那些已经过度砍伐的森林重新造林。

Brazil is the world's biggest deforester, albeit one committed to slowing the pace; China is the world's biggest afforester (now planting 4m hectares of forest a year)—though some complain that its trading partners' trees are being felled to stoke its economic growth.

巴西是世界上最大的森林采伐国，虽然它承诺会减慢采伐速度；而中国却是世界上最大的造林国，每年种植四百万公顷森林——虽然不少人抱怨中国的贸易伙伴国为中国的经济增长付出了砍伐树木的代价。

SFI is a public research institution of national importance, with a comprehensive research programme focusing on biological, ecological, silvicultural and spatial aspects of forests and forested landscape including forest ecology, forest physiology and genetics, forest protection, ecology of forest fauna and hunting, dendrochronology, dendroecology and dendroclimatology, forest inventory, remote sensing and geographic information systems in forestry etc.

该研究所是国家重点研究机构，主要致力于生物学、生态学、造林学和森林空间森林覆盖等领域的研究，其研究范围涉及森林生态学、森林生理学和遗传学、森林保护、森林动物生态学和狩猎、树木年代学、年轮水文学、年轮气候学、森林资源调查、森林遥感和地理信息系统等。

The researches cover silviculture, vegetation management, tree physiology, ecophysiology, dendrochronology, forest ecology, forest fire ecology, forest soil biology, biotechnology, forest genetics, forest entomology and pathology, forest practices effects on biodiversity and sustainability and forest economics etc.

该杂志研究领域涉及造林学、植被管理、树木生理学、生态生理学、树木年代学、森林生态学、森林大火生态学、森林土壤生物学、生物技术、森林遗传学、森林昆虫学与病理学、森林实践对生物多样性与稳定性的影响以及森立经济学等。

We shall have the same respite ( and the same manner in rendering justice [4] ) concerning the disafforestation or retention of those forests [4] which Henry our father and Richard our brother afforested, and concerning guardianship of lands under the fief of another (that is, the guardianships we had up to now because of a knight's fee someone else held from us), and with abbeys founded in fiefs other than our own, in which the lord of the fief claims to have a right.

我们应具有相同的喘息（并以同样的方式伸张正义 [ 4 ] ）中有关废或保留这些森林 [ 4 ] ），其中亨利的父亲和我们的兄弟理查德造林，以及有关土地的监护下，封地的另一（即guardianships我们到现在因为骑士的费用别人从我们这里举行），并与修道院始建于领地以外我们自己，其中主的封地声称权利。

The fire's worst scars were effaceable by a comprehensive program of reforestation; a signal too loud to be erasable in a single pass through the erase head .

最严重的火灾痕迹可以通过全面的再造林计划予以消除；太大了的声音不能通过消音磁头一次给抹去。

18 The conservation of the moorland landscape has been a major issue on Exmoor since the designation of the National Park in 1954 and, whilst moors and heaths are no longer being lost to agricultural improvement and afforestation, there is still considerable concern over the long term management of these areas.

2.18养护的为人景观已经成为一个重要的问题，对营销自指定国家公园于1954年，虽然摩尔和石南不再失去联络农业改良场及造林，还有相当关注长远管理这些地区。

And the main plantation tree species should select fast growth timber and economically high efficiency species, such as poplar, peach etc.

造林树种可选择速生丰产的杨树等用材树种和经济效益高的桃树等果树。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。