查询词典 desertification

Basing on the introduction of natural circumstances concluding topography,landforms and landscape,expounded the resource character of the area s,pointed out the six serious problems of alkalization,desertification,grassland degeneration,etc.

在介绍吉林省西部地区的地形、地貌、人文景观等自然环境的基础上，阐述了该区的资源特点，指出了该区经济发展存在的碱化、沙化、草原退化严重等六个问题。

Desert vegetation acting as the ecotone between desert and oasis plays an absorbable and alleviatory role in threatening of desertification in the outer space of Karamay Agricultural Comprehensive Developmental Region.

荒漠生态系统是建立新疆平原人工绿洲生态系统的物质基础和生态基础。

This thesis discusses the evolvement of Hebei Province water resources situation in detail, making clear the bad influence such as environmental anhydration, soil desertification, aggravating water pollution and deteriorating geologic environment on the Hebei water ecological environment from decrease of water resources and increase of water consumption together with economy development.

论述了河北省水资源演变情势，阐明随着水资源量的减少和经济发展用水量的增加对水生态环境所产生的不良影响——环境干化、土壤沙化、水质污染加重、地质环境恶化等。

In Naiman country, Inner Mongolia, the experimental area, the hyperspectral imaging spectrometer data in plant growth seasons are collected by state-produced airborne hyperspectral imaging spectrometer OMIS-I, and the ETM+ image is also obtained. Meanwhile, ground investigation and measurement are made, which include the measurement on reflection feature of different kinds of geo-targets and the ground investigation data necessary for spectral rebuilding and retrieval models of the appraisable factors of desertification monitoring.

本研究以内蒙古奈曼旗作为研究试验区，采用我国自行研制的机载高光谱成像光谱仪OMIS-Ⅰ，在植被生长季节取得高光谱分辨率成像光谱仪数据和ETM~+图像，并进行了同步的地面调查及量测，包括不同类型地物反射特性量测和光谱重建以及荒漠化监测评价因子定量反演模型所必需的地面样方调查数据。

These changes are in good agreement with observations and our statistical results, implying the desertification over northern China is one of causes responsible for decadal climate anomalies over China.

表明地表退化可能是中国近几十年气候异常的重要原因之一。

Our country's deserts mainly lie in arid and semiarid areas, mostly with scarce precipitation and lack of water resource, neither natural vegetation with relatively strong drought-resistance capability nor plantation, like diversifolious poplar, dryland willow, shrubby sand willow, saxoul and Hedysarum mongolicum Turcz,etc., can be protected effectively, this leads to desertification area expansion and frequent sand storm, which seriously affect people's work and life.

我国沙漠多处于干旱和半干旱地区，绝大部分地区降水稀少，水资源缺乏，无论是具有较强抗旱能力的天然植被，还是人造林如胡杨、旱柳，灌木类沙柳、梭梭、杨柴等都得不到有效保护，导致沙化面积扩大，沙尘暴发生频繁，给人民群众的生产生活带来严重影响。

In recent years the desertification area of farmland is 100 thousand mu and the death area of manmade Elaeagnus angustifolia woods is 135 thousand mu.

方案三，将石羊河来水量设计接近在20世纪80年代的平均水准，上游地区通过节约用水，是可以实现的目标。

The seasonally alternative distribution of wind and rainfall provides energy for soil erosion and loose underlying material, erodible soil types and landform also provide the material basis for desertification.

而河湖积和风积的松散土壤下覆物质和地形地貌及土壤特征都为荒漠化的发生和发展提供了物质基础。

The advantageous one mainly included different measures of vegetation restoration such as fencing, rehabilitated fields, abandoned land etc. and polices or laws about desertification debating. The disadvantageous influences included illegal grazing, estrepement, firewood cutting and so on.

有利因子如退耕还草、人工封育、撂荒等草地植被恢复及荒漠化防治措施以及相关的荒漠化防治政策法规的实施，不利因子如偷牧、滥垦、滥樵等。

Desertification takes on the trend of extendibility in China, and serious influences our survival and development.

我国的荒漠化呈逐年扩展趋势，严重影响着我们的生存和发展。

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。