查询词典 reforestation

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？

Reforestation and building terraced fields are the most important measures for soil and water conservation.

喀斯特山区的土壤移动受岩性、地形、地貌部位等具体条件的控制作用更为严格。

Reforestation and tree-planting programs are under way.

重新造林和植树项目正在进行中。

Phyllanthus emblica is one of the dominant species distributed in dry-hot valleys of southwestern China. Besides its function in ecology, environment and reforestation, it is also an important medicinal plant.

余甘子是我国西南干热河谷地带的优势植物，也是一种重要的药用经济植物，对其遗传多样性进行研究对生态环境的建设和恢复有着重要意义。

Don Hara. etc species for agricultural objects, and Eucommia ulmoides, Pterocarya stenoptera, Sinocalamus affinis etc species for reforestation objects.

通过土地单元间农林复合系统土壤呼吸以及土壤水分、养分等常规测定，筛选出林地—经济林—梯地、坡耕地—林地—经济林2种拓扑结构的土地单元间农林复合系统，并提出了生物带、生物埂功能调控技术。

Also the results indicated that soil properties could be changed by length of reforestation and soil quality index increased with vegetation recovery. The similarity index decreased for larger year interval between two reforested lands.

群落特征变化随林龄增加呈现一定的趋势，灌丛层生物多样性有所增加，草本层先增加后降低，均匀度变化不大，整体有所下降，而且林龄差异越大，物种的差异程度也变大。

In the right hand picture, the people have returned carrying tools, water and samplings for the reforestation of the land.

我认为，漫画家要告诉我们的是：树木对水土保持的重要性，以及每个人参与抵制沙化威胁的必要性。

In the right hand picture, the people have returned carrying tools, water and samplings for the reforestation of the l and.

我认为，漫画家要告诉我们的是：树木对水土保持的重要性，以及每个人参与抵制沙化威胁的必要性。

As a native species to China, Populus cathayana Rehd is well-adapted to the wet and cold environments where it occurs. It is considered to be an important reforestation species in western China.

青杨作为一个本土树种，能较好的适应潮湿和寒冷的环境，对中国西部的人工造林有着重要的参考价值。

Implementation of the requirements for intensive management of commercial forests, and to determine the reasonable amount of logging in; banned to protect the forests of the main stand a better site conditions, the test can be stratified business uneven-aged forest; Yilin according to the site conditions Provides a different mode of reforestation; priority to the development of the industrialization of edible fungi, mountain vegetables, almonds, fruit juice, and other items.

实施方案要求对商品林进行集约经营，并确定了合理年采伐量；对公益林以封禁保护为主，立地条件较好的林分，可以试营复层异龄林；对宜林地按立地条件不同规定了造林模式；产业化重点发展食用菌、山野菜、杏仁产品、浓缩果汁等项目。

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。