A new plant will spring up wherever a seed falls on a suitable soil surface, but because they do not build big bodies, they cannot compete with other plants for space, water, or sunlight.
当种子落在合适的土壤表面时，一株新的植物就会在那里生长，但由于它们体型不大，它们无法与其他植物竞争空间、水分或阳光。
Inspect wooden tie posts regularly for damage and rotting below the soil surface.
经常地检查在土壤表面下的木质柱子有无损坏和腐烂。
Taproot long-cylindric, deep-rooted with a slender and elongated stem to soil surface.
直根长圆筒状的，根深具一纤细和拉长的茎达土壤表面。
Soil evaporation is an important proportion of energy and water balance of soil surface.
土壤蒸发是地表能量与水分平衡的重要组成部分。
Weeping Alkaligrass with high nutrient value can decrease the salt content of salinized soil surface.
碱茅草能降低盐渍化土壤表层的含盐量，营养价值高。
The water permeability below the red soil surface layer is not the main factor that induces soil erosion.
红壤表层以下的透水状况不是造成土壤侵蚀的主要因素。
As to the application method of budding fertilizer, the soil surface broadcast was better than foliar spray.
促芽肥的施用方法以田面施为佳，叶面施用效果较差。
The water condition of stony golly is best, but the water condition of soil surface and stony trough are worse.
石沟的水分状况最好，土面和石槽水分状况相对较差。
Thatch can be described as the layer of organic residue located immediately between the sward and the soil surface.
土壤腐殖质层可被定义为在草皮与土壤表面之间的一层有机残留物。
The study of herbicide deposition on soil surface and wheat stubble in different wheat mulch conditions is conducted.
研究了不同兑水量情况下，除草剂在免耕麦茬土壤表面和麦茬上的沉积规律。
Soil surface mulching also had considerable effects on soil environment, but the effects varied with different modules.
此外，地面覆盖对土壤环境也具有重要影响，但不同处理之间差异较大。
Soil evaporation and moisture and heat transport are important constitutes of energy and water balance of soil surface.
土壤蒸发与水热传输是地表能量与水分平衡的重要组成部分。
The second is the process of water condensation determined by air vapor, soil surface temperature and the available energy of soil.
第二阶段是由近地面微气象条件决定的水分凝结过程，所吸收水量受空气水汽压、地面温度和地表可利用能量的影响。
The concentration of nitrate-N increased continuously in soil surface, which resulted in nitrate leaching to groundwater after rewetting.
土表的硝态氮浓度不断增加，烤田增大了复水后硝态氮向地下水淋溶的趋势。
The results indicate that the sliding resistance is greatly reduced by the lubrication effect of a thin film plaster on the soil surface.
结果表明：田面有泥浆薄层时船体滑行阻力将大大降低。
The results showed that soil surface random roughness, soil cohesion and aggregate stability had significant difference among land use types.
结果表明，大南沟流域内土壤随机糙度、抗剪力和团粒稳定性具有一定的空间变化规律，不同土地利用方式间有显著差异。
The researches in this paper showed the characteristics and mechanics of plastic mulch which preventing soil salt from moving to soil surface.
本文的研究揭示了地膜覆盖节水特征和抑制土表积盐机制。
The model presented here can be used to predict the temperatures of the cover, internal air, plant canopy, and soil surface of the greenhouse.
该模型可作温室顶棚，内部空气，作物表面和地表的温度预报之用。
Frequent shallow watering can force roots to come up to the soil surface in search of a drink, encouraging a plant to develop a weak structure.
频繁的浅度浇水会让根泥土表面伸展以寻找水，纵容了植物产生不良好的结构。
Combing the experiments with results of calculation, we described the effects of raindrop kinetic energy to overland flow and soil surface of slope.
通过对试验现象和结果的结合，描述了雨滴动能对坡面水流及坡面土壤的作用。
Simulating experiments were conducted to study the effects of sand and gravel mulches with different sizes on moisture evaporation from soil surface.
为研究不同粒径砂石覆盖对土壤蒸发过程的影响，进行模拟试验。
Salt crust is a unique layer that forms on the soil surface under drip irrigation with saline water in the shelterbelts along the Trim Desert Highway.
盐结皮是咸水滴灌条件下塔里木沙漠公路防护林土壤表层形成的一种特殊层结。
There were two typical characters in the soil surface of H1 and H2, which were breaking up of aggregates easily and sharply tightening of surface soil.
在降雨过程中，H1、H2表土结构的变化有两个显著特征，一是团聚体容易破碎，二是表土迅速紧实。
The directions for agricultural water saving were pointed out that were to reduce evaporation from soil surface and make the wasted precipitation efficacy.
提出了减少地面蒸发损失和使降水有效利用是未来农业节水的主攻方向。
The vertical distribution shows larvae are mainly distributed within 6 cm below the soil surface, and 95 percent of the cocoons crowd within 3 cm below the surface.
其垂直分布幼虫主要集中在离土表6厘米内，土茧95 %以上分布在离土表3厘米内，幼虫结茧有向上爬习性。
The application technique of texture mapping on imitating the soil surface is introduced for an example of the soil surface changed in the engineering corps battlefield.
以工兵战场仿真中挖土作业时土壤表面视景仿真为例，介绍了纹理映射技术在模拟土壤变形过程中的运用。
On the basis of the above, the author studied and analyzed the relations between soil surface resistance and evaporation and main factors that influence the evaporation.
在此基础上，对土壤表面阻力与蒸发、影响蒸发的主要因子的关系进行了分析研究。
The relationship between soil surface moisture and soil spectral reflectance as well as evaluation of several inversion method of soil surface moisture from reflectance;
土壤表面湿度与土壤反射率的关系及其土壤表面湿度的几种反射率反演方法的评价；
The relationship between soil surface moisture and soil spectral reflectance as well as evaluation of several inversion method of soil surface moisture from reflectance;
土壤表面湿度与土壤反射率的关系及其土壤表面湿度的几种反射率反演方法的评价；
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