植物覆盖和保护着土壤。
Plastic sheeting is used to cover the soil to prevent loss of moisture.
使用塑料薄膜覆盖，可以防止跑墒。
Many perennial ground cover plants, such as ivy, periwinkle, pachysandra, mondo grass and liriope, will cover the soil and act as a mulch.
许多多年生地被植物如常春藤、蔓长春、富贵草等等，能够形成良好的地面覆盖效果。
They have also learned how to better preserved the precious surface water by using the thin film to cover the soil so that the evaporation of the moisture from the ground can be minimized.
他们也学会了用薄膜盖住土地，这样可以最大程度地防止水分的蒸发，以达到保持住弥足珍贵的地表水的目的。
Landfills are places to dump waste, but they are unpopular because they can pollute the soil used to cover them.
垃圾填埋场用于倾倒垃圾。但因为覆盖在垃圾上的土壤会受到污染，所以垃圾填埋场的使用并不广泛。
Even in the areas that retain a soil cover, the reduction of vegetation typically results in the loss of the soil's ability to absorb substantial quantities of water.
即使在保留土壤覆盖的地区，植被的减少通常也会导致土壤丧失吸收大量水分的能力。
The consequences of an excessive number of livestock grazing in an area are the reduction of the vegetation cover and the trampling and pulverization of the soil.
在一个地区过度放牧的后果是植被覆盖的减少和对土壤的践踏和粉碎。
We can tear apart the great grass cover of the western plains and pour toxic chemicals into the soil until the soil is dead and blows away in the wind.
我们可以把西部平原上覆盖的大片草地撕开，然后把有毒的化学物质倒入土壤中，直到土壤枯死，被风吹走。
Cover soil around plants with small rocks to further secure the plants and to beautify!
植物周围铺上土壤和小石子进一步牢固和美化。
Salt basins, sand and lava cover much of its 40,000 square miles (103,600 square km), and the soil is so lifeless that NASA can design their Mars ground tests on Atacama land.
大约4万平方英里(103,600平方公里)的地区都被盐盆地，沙地和熔岩所覆盖。因为这里的土壤毫无生命力所以美国国家航空及太空局可以在这个岛上进行火星地面测验。
Salt basins, sand and lava cover much of its 40,000 square miles (103,600 square km), and the soil is so lifeless that NASA can design their Mars ground tests on Atacama land.
大约4万平方英里（103,600平方公里）的地区都被盐盆地，沙地和熔岩所覆盖。 因为这里的土壤毫无生命力所以美国国家航空及太空局可以在这个岛上进行火星地面测验。
The technology was helped by the density of houses and other buildings, made of mud brick so that they showed up somewhat clearly against the looser soil cover.
这种技术利用了显现房屋和其他由泥砖建成的建筑的密度特性，因此可以清晰的显现被松散的泥土覆盖的物体。
Though it is di? Cult to grow trees in the saline-alkali soil, the ground cover and wetland vegetation are rich and vary in response to subtle changes in the water table and PH values.
尽管难以在盐碱地里栽种树木，但覆盖地表和湿地的植被异常丰富，随着地下水位和PH值的细微变化而呈现不同的形态。
Ecological conditions will improve with the increase in land under vegetative cover and reduced soil and water loss.
生态环境也会随着植被面积扩大和水土流失减少而得到改善。
Your child can sprinkle on seeds, cover lightly with soil and be responsible for watering the plants every day.
由于不会用到土地，孩子们只需要将我们从商店里买来的土倒入容器中即可，然后播种、盖土，并负起每天为蔬菜浇水的责任。
To get in the spirit, participants cover themselves with the rich soil known as Mambukal clay.
为体现这种精神，参与者们要把一种叫做Mambukal粘土的肥沃土壤抹在自己身上。
If a test finds that soil has too much lead, you might be advised to remove the soil or cover it with sod grass.
如果检测表明土壤含铅量很高，就需要把这部分土壤移走或者用草皮草盖住它。
Soil erosion in the loess area relates to low vegetation cover rate in this region.
黄土高原地区严重的水土流失与该区植被覆盖率低有密切的关系。
All the soil cover were stripped away.
全部土壤盖层都被剥去了。
The distribution configuration of middle-low mountain soil quality mainly depends on the variations between land use and cover, and human activities is the main factor that enhances the variations.
中低山坡地土壤质量的变化特征主要依赖于土地利用与覆盖之间的差异。
The soil straw cover of farmland is a main method to prevent the soil and water erosion, it is very important to research the relation between the straw cover and the wind erosion.
农田地表秸秆覆盖是防止水土流失的一项主要措施，研究秸秆覆盖度与土壤风蚀、水蚀的定量关系对农田采取合理的覆盖形式有重要的指导意义。
Tests are made for the effects of wind field, cloud cover and soil parameters on fog cycle.
最后，就不同风场、云层覆盖及土壤参数等对雾过程的影响进行了讨论。 现在工作单位。
The factors that can influence the soil seasonal free zing and thawing include snow -cover, vegetation, the soil component and contain water, the condition of earth, landform and so on.
土季节冻结和融化的影响因素主要有雪盖、植被、土壤成分及含水量、地表状况和地形等。
The vegetation cover and management factor ( C ) in the universal soil loss equation (USLE) is an index to evaluate this effect, which has been studied deeply and used widely.
通用土壤流失方程（USLE）中的植被覆盖与田间管理因子（C）是评价这种抑制作用的有效指标，并被广泛采用和深入研究。
Cover crops can improve the water holding ability of soil; however, its effect on soil hardness depends on the moisture content of soil.
覆盖作物可改善土壤持水能力，但是对土壤硬度的影响与土壤含水率有关。
The wind erosion hazard is often intensified by the poor vegetation cover and loosen surface soil due to the freezing and thawing over winter.
春季风大风多，降雨量少，气候侵蚀力高，地表植被覆盖率低，土壤表层由于冻融作用变的松散，是一年最易风蚀的季节。
In this study, simulating rainfall was applied to study the runoff process and infiltration rate of soil under the cover of vegetation at the preliminary succession stages.
利用模拟降雨装置，研究了演替恢复初期不同植被覆盖以及不同处理下坡面降雨的产流过程和入渗率。
Normally, the extracting soil areas firstly need to temporally store the surface soil, meanwhile, temporary block measures, temporary drainage projects and temporary cover should be taken.
粘土料场首先进行表土的临时堆存，同时布设临时堆土区临时拦挡、临时排水和临时覆盖等措施。
Normally, the extracting soil areas firstly need to temporally store the surface soil, meanwhile, temporary block measures, temporary drainage projects and temporary cover should be taken.
粘土料场首先进行表土的临时堆存，同时布设临时堆土区临时拦挡、临时排水和临时覆盖等措施。
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