The community structure and dynamics of soil water of Pinus sylvestris var. of the mongolica plantation were studied in a growing season.
对樟子松人工林群落结构和土壤水分动态进行研究。
It increased plough layer soil water and available nutrients content.
大豆覆膜增加了土壤水分与速效养分含量。
Soil water content forecast is base work for cropland irrigation timely.
土壤水分预报是农田适时适量灌水的基础。
Study of Effects of the Concrete Mulch on Movement of Soil Water and Soil Heat Transfer.
硬覆盖对土壤水热传输及作物生长发育影响的试验研究。
Compared with conventional tillage method, the mulch tillage practice increased soil water content.
与常规耕作方式相比，随着秸秆覆盖量增加，土壤水分增加。
Theoretically, one would expect the distribution of a fumigant to be more rapid at lower soil water contents.
在理论上，预计熏蒸剂的分配在土壤水分含量较低时会更迅速。
Under conventional till, crop response to spring soil water content was considerably greater than under zero till.
在常规耕作条件下，春季作物对土壤水份含量的响应要比免耕地大得多。
Lead into soil water salt dynamic model as terms of controlling, finally compile the calculation procedure among model.
在模型中引入土壤水盐动态模型作为控制条件，最后编制了计算程序。
Owing to the difference of soil water in the farm, variable rate irrigation can save water as well as raising economy benefit.
依据农田内土壤含水量的差异性，有针对性地进行变量灌溉，既可节约用水又可提高经济效益。
The variation of soil water, salinity and temperature in the field makes the coupled transport processes of them very complicated.
田间土壤水分、盐分和温度变化使水、盐、热耦合迁移的过程极其复杂。
According to the differences of soil water potential in the farmland, variable irrigation can save water as well as raise economic benefit.
依据农田内土壤含水率的差异性，有针对性地进行变量灌溉，既可节约用水又可提高经济效益。
The results showed that factors influencing soil water followed a descending order of slope direction, soil, degree of slope and position of slope .
研究结果表明，影响该地区土壤水分含量的因子按大小依次为坡向、土壤、坡度和坡位。
A field experiment was conducted to study effects of root pruning at returning green stage on population structure, soil water and yield formation of winter wheat.
通过田间试验研究了返青期不同程度根修剪处理对冬小麦群体结构、土壤水分及产量形成的影响。
Soil water infiltration is a critical component of field water circulation, and Numbers of infiltration models with different properties and functions were established.
土壤入渗是田间水循环的重要组成部分，国内外学者提出了具有不同特点和用途的入渗模型。
However, when precipitation rate is large enough and soil water goes beyond the field capacity, the excessive soil water will flow laterally to the lower levels through noncapillary pores.
而当降水强度较大，以致使土壤水分大于田间持水量时，超过田间持水量部分的土壤水会很快流往较低的台阶。
Based on soil water infiltration testing and related parameters measured in field, tillage soil water infiltration capacity attenuation process was analyzed and the mechanism was discussed.
基于大田土壤水分入渗试验与相关参数的测定，分析了耕作土壤入渗能力衰减过程，探讨了耕作土壤入渗能力衰减机理。
Water runs through the gravelly soil very quickly.
水快速流过铺满碎石的土壤。
As the water evaporates, a crust of salt is left on the surface of the soil.
水蒸发后，土壤表面留下一层盐。
The primary growing medium, what the plants draw nutrients from, is actually soil, not water.
主要的生长介质，也就是植物吸收营养的来源，实际上是土壤，而不是水。
I like the fact that organic farms don't use chemical pesticides or anything that can pollute the soil or the water.
我喜欢有机农场不使用化学农药或任何会污染土壤或水的东西。
The computer in the farmhouse is checking the temperature, the water and the level of organic material in the soil.
农舍里的电脑正在检查温度、水和土壤中有机物质的含量。
Organic agriculture also creates less soil and water pollution and lower greenhouse gas emissions.
有机农业还减少了土壤污染和水污染，降低了温室气体排放量。
A massive oak claims its ground for 200 years or more, outcompeting all other would-be canopy trees by casting a dense shade and drawing up any free water in the soil.
200年或更久的时间里，一棵巨大的橡树占据了它的土地，投下浓密的树荫，吸收土壤中所有自由水分，打败了所有其他可能成为树冠的树木。
The water evaporates and the salts are left behind, creating a white crustal layer that prevents air and water from reaching the underlying soil.
水蒸发留下盐分，形成白色的地壳层，阻止空气和水进入下面的土壤。
Less vegetation means the soil can't hold water as well; the soil loses its ability to retain water when it does rain.
更少的植被意味着土壤也无法保持水分；下雨时土壤就失去了保持水分的能力。
This germ—which is present in soil and water, not feces—is responsible for "swimmers ear", an itchy or painful inflammation of the ear.
这种细菌——存在于泥土和水中，而非粪便——是造成“游泳耳”的主要原因，症状是耳朵发痒疼痛和红肿。
Wetlands are areas of marshy, swampy land, areas where water covers the soil, or is present either at or near the surface of the soil for a large part of the year.
湿地是指多沼泽的区域，软而湿的陆地，一年中的大部分时间有水覆盖着土壤、或是有水存在于土壤表面或接近土壤表面的地方。
The gradual drying of the soil caused by its diminished ability to absorb water results in the further loss of vegetation, so that a cycle of progressive surface deterioration is established.
土壤吸收水分的能力减弱使土壤逐渐变得干燥，导致植被进一步减少，从而建立了一个渐进的地表退化循环。
The impact of raindrops on the loose soil tends to transfer fine clay particles into the tiniest soil spaces, sealing them and producing a surface that allows very little water penetration.
降水往往会把细小的粘土颗粒转移到土壤的最微小的空隙中，使这些空隙变得封闭，从而形成了一种几乎不允许任何水分渗透下来的表层土壤。
The impact of raindrops on the loose soil tends to transfer fine clay particles into the tiniest soil spaces, sealing them and producing a surface that allows very little water penetration.
降水往往会把细小的粘土颗粒转移到土壤的最微小的空隙中，使这些空隙变得封闭，从而形成了一种几乎不允许任何水分渗透下来的表层土壤。
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