查询词典 desertification

In the KARST area whererock desertification is very serious, how to actualize industr-ialisation, how to keepthe agriculture sustainable development in the process of citilization, how to protectthe limited cultivated land resource, how to ensure food basically self-support, andhow to ensure food security, have been the strategetic problems of sustainableeconomy and society development in this area.

在石漠化严重的喀斯特地区，如何在实现工业化、城镇化过程中保持农业可持续发展、保护有限的耕地资源、保证粮食基本自给、保障粮食安全是该地区经济和社会可持续发展的全局性战略问题。

The unsafely land right is the warm bed for land resources over exploration;forest and grassland right empty and imperfect have lead over uses of these resources and also restrict investment enthusiasm;investment main body fault location, unstable policies, restrict among departments, poor expiation mechanism and un-rational water resources management policy, these all have cause un-effect desertification control.

土地权属的不安全给人们随意开垦土地提供了负向激励；林权草权虚置和缺位，导致人们竞相利用，制约投资者积极性；投资主体错位，政策的不可持续性、部门间的相互制肘、补偿机制无力、水资源管理制度不合理等导致不能有效防治土地沙漠化。

Condensation water plays an important role in sustaining the vegetation and eco-environment in the desertification areas. The development of condensation water may be influenced by day and night trends of temperature and moisture in the vadose zone.

凝结水对维持荒漠地区的植被生态环境起到至关重要的作用，而凝结水的形成机制又反映在包气带地温与含水量的昼夜动态过程中。

But at the same time,itexisted in the fact that the water environment was amended,showingthat many lakes and ponds such as Hong Jiannuo Lake appearing andexpanding in the end of Qing dynasty.4.The vegetation in Mu Su Desert passed through several phases inhistorical times,the main phases are:the species composition ofvegetation community was gradually simplified;xeromorphous and sandyplant increased;the status of desert vegetation rose evidently.However,the change of vegetation zonation means that forest plainchanged into drought plain did not occur.5.The main modality of Mu Su Desert land degenerating has beendesertification,it had occurred before human activities intervenedintensively.Two-thirds of land has been desertification at variousdegrees.

但与此同时，也存在着局部的水环境改善，突出表现为红碱淖等湖沼在清末民初的出现和扩大。4、毛乌素沙地的植被在历史时期经历了群落种类组成渐趋简单、旱生沙生资源植物增加、荒漠植被地位明显上升等变化，但是并不存在由森林草原到干草原的地带性植被变化。5、沙漠化是毛乌素沙地土地退化的主要表现形式，在人类活动强烈干预以前就存在着，秦汉以来，有大约2／3的土地发生了程度不同的沙漠化。

These effects can reflect in the following several points: the desertification occurred in large scop...

这些影响在很大程度上限制了塔里木河下游经济的发展。

China has passed its experiences and techniques on controlling desertification and building ecological agriculture on to many countries through the UNEP.

在环境署的组织下，中国将防治沙漠化、建设生态农业的经验和技术传授到许多国家。

This study will offer scientific basis and important consults to combat desertification ,and it is import in theory and reality.

本研究为荒漠化的防治提供了科学依据和重要参考，具有较强的理论和现实意义。

It put forward stable public fiscal investment mechanism and ecological expiating mechanism for desertification control. Long stable land right should be given to fanners, trees ownership right should be cleared, ecological purchasing, improvement of water resource and grassland management, etc., 34 system innovation have been put forward.

建立以公共财政为主的稳定投资机制；完善生态补偿机制；完善产权制度；实行国家生态购买制度；改革水资源管理和草原管理等。4制度保障策略。

Overgrazing is the major cause of desertification worldwide.

过度放牧是全球沙化的主要原因。

It is such a cycle that has led to widespread desertification in some parts of the world, primarily through overgrazing that can be compounded by naturally occurring droughts.

这样的循环导致在世界的某些地方大范围的人为沙漠化，这主要是由于过度放牧并伴随着自然干旱的发生。

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。