造林

Deforestation accounts for roughly 20% of the world's greenhouse-gas emissions, which reforestation could potentially counter.

森林砍伐大约占世界温室气体排放量的20％，而重新造林可能会降低这一数字。

Why do the authors praise reforestation in Yunnan?

为什么作者要称赞云南的重新造林项目？

First,we must save our forests,and even replant them.

首先，我们要拯救森林，也可采用人工造林。

It was suggested that much attention should be paid on woodland improvement and plant species selection, especially shrub species, before revegetation in similar areas.

退化人工林的防治重点应放在现有林的改良和造林植物种特别是灌木种的选择上。

So Robinia pseudoacacia was planted in semi-cloudy and gully and valley slope with better water condition, and effect foster measure was made.

因此刺槐造林应选栽在半阴坡、沟谷等水分条件较好的生境，并要施加得当的抚育措施。3。

Haba Lake tourism area through the natural growth of vegetation, artificial afforestation and closed forest, plant a wide range of dense forest vegetation, microclimate clear that the formation of a good ecological environment, to clean the air, reducing soil erosion, the county seat of Yanchi with ecological barrier, Love of the Mountains in beautiful scenic area, sand hills, golden, fresh air, the negative particle concentration is high, forest bath, light bath, sand treatment of the ideal, and therefore known as the "Desert Oasis","natural oxygen bar."

哈巴湖旅游区植被经过天然生长，人工造林和封山育林，植物种类繁多，森林植被茂密，小气候明显，形成了良好的生态环境，净化了空气，减少了水土流失，对盐池县城具有生态屏障的作用，景区内山恋锦绣，沙山金色，空气清新、负粒子含量高，是进行森林浴、光浴、沙疗的理想之地，因而被誉为"沙漠绿洲"、"天然氧吧"。

18 A woman on a sapling plantation in Linyi, Shandong, China.

在中国山东临沂，一名女子在一个人工造林幼树场。

The afforested area jumped from 868 ha in 1990 to 19,069 ha in 2007, registering a more than 20-fold increase. The area of shelter-forest, which plays an important role in ecological protection, rose from 440 ha in 1990 to 13,132 ha in 2007, an increase of nearly 30-fold see Fig.

造林面积从1990年的868公顷增长到2007年的19069公顷，增长了20多倍，其中对生态环境保护具有重要作用的防护林面积由1990年的440公顷增长到2007年的13132公顷，增长了近30倍（注24）。

Standard pattern Er is upland the area is the area with most broken cut of landform of churchyard of Nei Monggol Autonomous Region, it is " 3 north " shelter-forest project is in E Er is much this downy key afforestation administers an area.

准格尔丘陵地区是内蒙古自治区境内地形切割最为破碎的地区，又是"三北"防护林工程在鄂尔多斯高原重点造林治理地区。

Implementation of the key projects, such as the afforestation project in Lhasa and its outskirts, the construction of the shelter-forest system of the Yarlungzangbo River, the pilot project of the Yangtze River shelter-forest system in Markam and the pilot project for controlling sand by afforestation in Xigaze, has, to a great extent, improved the natural eco-environment of those localities.

拉萨及周边地区造林绿化工程、雅鲁藏布江防护林体系建设工程、芒康长江防护林体系建设试点示范工程、日喀则林业治沙示范工程等重点项目的实施，在很大程度上改善了所在区域的自然生态环境。

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。