水土

It shows that runoff is closely correlated with the features of individual precipitation, and it is also affected by vegetation within a short period of time. Raindrop erosion, sheet flow erosion and rill erosion on the slope are the main soil erosion patterns; sediment yield occurs mainly in flood season. Human activity and individual precipitation are two important factors that control the soil erosion at a small watershed. Comprehensive management on the slope in a small watershed is an efficient measure of water and soil conservation.

分析表明，小流域的产流方式容易随次降雨条件的变化而变化，植被因素在较小时间尺度内就会影响产流；产沙主要来源于坡面上的溅蚀、片蚀和细沟侵蚀，时间主要集中在汛期；人类活动以及次降雨条件是控制小流域侵蚀产沙的重要因素；在小流域内进行坡面的综合治理是水土保持的有效措施。

Soil erosion is widespread in the future should be strengthen the protection of grassland, afforestation, reduce the role of gully erosion and sheet erosion; should also note that the full utilization of water resources in the development of irrigated land, and substantial improvements in agricultural irrigation and drainage facilities to prevent flooding disasters.

水土流失现象普遍，今后应加强保护草坡，植树造林，减少沟蚀和片蚀作用；亦应注意水利资源的充分利用，发展水浇地，并大力改善农田排灌设施，防止水患灾害。

Following implementation of the project for the construction of the shelter-forest system of the Yarlungzangbo River, which is part of the key "three rivers" agricultural development undertaking, a man-made forest belt measuring several hundred km from Xigaze to Zetang on the upper reaches of the Yarlungzangbo River has been formed.

隶属"一江两河"农业开发重点项目的雅鲁藏布江防护林体系建设工程实施后，形成了从上游的日喀则到泽当几百公里的人工林带，成为西藏一道新的亮丽景观，对雅鲁藏布江的水土保持起到了积极的作用。

Following implementation of the project for the construction of the shelter-forest system of the Yarlungzangbo River, which is part of the key "three rivers" agricultural development undertaking, a man-made forest belt measuring several hundred km from Xigaze to Zetang on the upper reaches of the Yarlungzangbo River has been formed. Now, a new spectacular scene, the belt plays a positive role in conserving water and topsoil along the Yarlungzangbo River.

隶属"一江两河"农业开发重点项目的雅鲁藏布江防护林体系建设工程实施后，形成了从上游的日喀则到泽当几百公里的人工林带，成为西藏一道新的亮丽景观，对雅鲁藏布江的水土保持起到了积极的作用。

As soil erosion, siltation, increased environmental destruction of the Yellow River and the serious water shortage and water pollution, such as drying up of new problems.

由于水土流失，泥沙淤积，生态环境日益遭受破坏，黄河又出现了严重的缺水断流和水污染等新的问题。

The source of slack deposits is the loess of the upper reach where the soil erosion is very heavy, while the source of sand is the airslaked rocks of mountainous area in the upper reach. 3. There were several "interbedded slack deposit-aeolian fine sand layers" in both LHT and YWC profiles, the silt layers are slack water deposits and the aeolian fine sand layers were carried by the NE direct wind.

在LHT、YWC和YYC剖面中，磁化率均呈现出平流沉积层中偏低，而在风吹沙和中、粗沙层中偏高的特点，其原因是平流沉积层的物质来源多为上游黄土区的土壤侵蚀和水土流失带来的土壤，而沙层的物源则是上游基岩山区的岩石经风化、搬运而来。

In this sense, the endemic is also a serious "social" disease.

与此同时，水土病在安泽的流行，产生了一系列社会问题。

Grout must be supplemented in time to ensure the gap between soil and pipe to be stuffed.

注浆工艺的合理性对管道顶进施工的顺利实施有重要的意义，并就注浆工艺的改进提出了以下要点：及时补充压浆，力求使地层与管道结构间的缝隙始终由浆液密实充填；及时调整注浆压力，力求使其与管段所在位置的水土压力值相等；注浆孔在管段横剖面上均匀布设，以使注浆压力沿管道周边均匀分布；对位于顶进管道前端的数节管段，宜每节都设注浆孔，使可及时注浆和补浆。

Meanwhile, salt content in groundwater meet log normal distribution and its spatial structure meet to a cubic spherical function....

利用 GSLIB软件，绘制了该县土壤含盐量和地下水含盐量等值线图，为该地区水土管理，防止土壤盐渍化提供了决策依据

In another words ,under the different mulching condition and the same other condition, the soil erosion degree ,from easy to difficult in turn ,is hillside cultivated,sparse and young foresty,fruit holt,spinney holt, grassplot,town,holt,paddy field,water area.

即：在不同的地面覆盖中，在同等的条件下，引起水土流失由易到难顺序依次是坡耕地、疏幼林地、经果林地、灌木林地、草地、城镇村及工矿用地、有林地、水田、水域。

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。