查询词典 desertification

At the same time, officials appear to have finally become aware of the environmental depredation China faces, and the damage that dams cause, and are frantically stopping farming and resettling villagers to plant forest in an effort to halt desertification and flood damage on denuded hills.

与此同时，政府官员似乎也意识到了中国面临的环境威胁，比如建设三峡大坝的副作用。因此在疯狂地征用粮食耕地，而要求农民在光秃秃的山上植树造林，试图阻止土地沙化和洪水的发生。

It studies prevention of soil erosion and land desertification, improvement of salinized soil, swamping soil, and degraded soil, restoration of contaminated soil, protection and utilization of arable land, and intensive use of land.

研究内容包括水蚀、沙化土壤的防治，盐渍化、沼泽化、贫瘠化土壤的改良，污染土壤的修复，耕地保护与利用，以及土地的集约节约利用等。

With development of man-made oases in headstream zone and upper and middle zone of trunk stream zone, the origin water resource system was destroyed. This caused a serial of ecological problem on tobogganing groundwater level, ruining Green Corridor, intensifying land desertification, etc.

源流区和干流上、中游人工绿洲的发展，破坏了原有自然水资源系统，使输往下游的水量不断减少至中断，从而造成塔河干流下游地下水位急剧下降、绿色走廊衰败、土地荒漠化趋势加剧等一系列生态问题。

At present, the aeolian desertification is still facing the situation of "partly controlled but whole worsen".

目前我国沙漠化防治仍然面临着&局部治理，整体恶化&的严峻态势。

In other words, underground water is an essential water resource, accounting for 41%-83% of the total. Meanwhile, the formation of limestone soil is slower.(2) Guangxi is a typical karst region. A large difference is noticed in vegetation coverage between karst regions and non-karst regions. The average coverage of bush and forest communities is 14.81% and 12.13% in the karst regions, 1.92% and 31.3% in the non-karst regions.(3) The wide distribution of rocky desertification in Guizhou Province indicates the karst environment is strongly affected by carbonate rocks'properties.

水资源以地下水资源为主，且难开发；土壤资源零星分散，土层薄，易流失；(2)现存广西区植被覆盖特征显示，岩溶石山区森林覆盖率明显低于非岩溶区，同时也暗示着岩溶石山区植被的恢复、演化慢于非岩溶区植被；(3)贵州石漠化分布特征表明岩性对岩溶生态环境的制约；(4)脆弱的岩溶生态环境制约着生态系统的人口承载力。

Based on the reflection spectral characteristic of the land surface feature in Duolun area, by using multispectral satellite image data and adopting image processing of false color composite and ratio false color composite, with support of Geographic Information System, the space disbribution of the land desertification is interpreted and measured in this paper.

在内蒙古多伦县土地沙化现状的调查中，利用多波段卫星图象数据，根据多伦地区各类地物的波谱特征，采用了假彩色合成及比值假彩色合成等遥感图象处理方法，在地理信息系统技术的支持下，对多伦地区沙化土地的空间分布和面积进行了详细的解译和测算。

Simulation of dust emission flux is very fundamental for evaluating climatic effects of dust aerosols and controlling desertification process and dust storm.

准确模拟粉尘释放通量对评价粉尘气溶胶的气候效应、沙漠化和沙尘暴防治具有重要意义。

The main results are as follows: The environment here is terribly vulnerable, and is facedwith the severe process of desertification and pasture degradation. The tendency of climatebecoming warmer and arider is the background factor of the environment degradation, and theinfluence of the human activities also expedites the process. The main reason that results inthe regional difference of the landscape changes is the the regional difference of the intensityof human activities.

研究结果表明：鄂托克旗生态环境十分脆弱，土地沙化、草地退化问题严重；气候朝干旱化与温暖化方向发展的趋势是生态环境退化的背景因素，人类活动的影响加剧了这种退化过程；不同景观小区人类活动强度的差异是引起景观变化差异性的主要原因。

Rocky desertification, loess, desert and frozen soil are the fragile ecological area of west China, which astricted the sustainable development of the area.

喀斯特地貌石漠化和黄土、荒漠、冻土等并称为中国西部的四大生态环境脆弱带，是限制可持续发展的一个十分重要的因素。

But don't fret – whatever catastrophe, armageddon or ecocide befalls us, measures are at hand to make sure that if we survive a nuclear winter or total desertification, we'll be able to recreate a bucolic paradise: This Tuesday (26th), Norway opened the Svalbard Global Seed Vault on the island of Spitsbergen in the Arctic circle.

但是不要担心-无论灾难，世界末日或生态灭绝的遭遇，我们的措施已经在手，以确保如果我们生存的一个核冬天或全部荒漠化，我们将能够重新建立一个b ucolic天堂：这周二（ 2 6日），挪威打开斯瓦尔巴群岛全球种子跳马于岛上的斯匹次卑尔根群岛，在北极圈内。

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。