脲酶活性随土壤深度加深而降低。
随土壤深度增加，覆盖的增温效果下降。
The mulching effect decreased with the increase of soil depth.
随着土壤深度的增加，地温日变幅逐渐减小。
With the increase of soil depth, daily variation amplitude of soil temperature decreases.
人工林地、草地土壤有机碳含量均随土壤深度增加而减少。
The soil organic carbon contents of plantation lands and grassplots decreased with the increase of soil deepness.
随土壤深度增加，土壤中原油残留物的含量呈波动递减趋势。
For Cultivated Loessial Soil, Dark Loessial Soil and Yellow-brown Soil, the advance distance decreased as silt content increased.
年龄和土壤深度线性拟合方程的相关指数在各剖面均达到了显著水平。
The correlation indexes of fitting function between I4C ages and depths are all over the significant level.
而表层土壤的有机碳含量最高，随着土壤深度的加深，有机碳含量逐渐降低。
We calculated the soil organic carbon pool, fine roots carbon stocks and contribution of fine roots. Important findings soil water content increased with depth, but soil organic carbon decreased.
随着土壤深度增加，土壤过氧化氢酶和多酚氧化酶活性增大，而脲酶活性降低。
Totally, soil catalase and polyphenol oxidase activity increased, while soil urease activity declined in deeper soil, the extent were different among temperatures and litter types.
图四、在土壤表面、地表下5、15及30公分土壤深度的瓜类蔓枯病菌柄孢子存活情形。
Fig. 4. Pycnidiospore survival of Didymella bryoniae placed at soil surface, 5, 15, and 30cm below ground at field.
而土壤全磷、土壤全钾、土壤有效磷、土壤有效钾随着土壤深度的增加，其变化规律不明显。
Soil total potassium content, soil available phosphorus, soil total potassium content and soil available potassium, Their variation is not obvious.
滴灌带以下的含水率高于滴灌带以上的含水率，垂直方向含水率的分布与土壤深度之间符合二次函数关系。
The moisture rate of soil above drip tube is higher than which under the drip tube, in vertical soil moisture is related soil depth with a nonlinear function.
各处理苜蓿不同深度处根重占总根重的百分率随土壤深度的增加呈对数关系，相关系数均超过了0.9623。
There existed logarithm relations between the layer weight of roots and soil depth with the correlation factor of over 0.9623. The weight of roots decreased rapidly with the increase of soil depth.
随着土壤深度增加，不同覆盖处理之间土壤水分含量差异增大。4种材料覆盖均有利于降低土壤容重，其中以秸秆效果最显著。
However, the difference of soil moisture increase with the soil depth among 4 mulching materials. All mulching can decrease soil unit weight. And straw mulching has the most effects.
他定期从三种深度收集土壤样本，分析其中的有机碳。
He periodically collects soil samples at three depths and analyzes them for organic carbon.
布希柏格教授说，移除表层土壤可以保证土地的使用安全，但这取决于放射性物质渗入的深度。
Professor Bushberg says removing the topsoil might make the land safe for use. But it depends on the depth of the radioactive material.
不同深度的土壤有着不同的贮水量，因而也有着不同的淋失量。
Different depth of soil had different water storage, and therefore, had different leached amounts.
基地水文评估包括调查土壤、水生生物需水深度、湿地植物群落等其它方面。
Site hydrology assessment includes investigations into other areas like soils, depth requirements for aquatic organisms, wetland plant communities, etc.
其中包括去除好几层土壤，直到某个合适的深度。
It includes delayering the soil several layers to a certain depth.
同一土壤剖面的有机质含量随着深度的增加而减少。
In the same profile, organic matter content decreased with the increase of soil depth.
对于不同土质、不同的土层深度，土壤含水量都是呈规律变化的。
Different soil and different soil depth, soil containing water or moisture data is disciplinarian transform.
该项研究发现，根据土壤的类型与取样的深度不同，土壤储存的碳水平有所不同。
The study found that soil carbon levels varied, depending on soil type and sampling depth.
这些无机磷组分在不同深度土壤中的表现也有差异。
These inorganic components showed diversity in the different layers of soil.
河岸土壤性质及河弘深度是堤内地下水的两个重要影响因素。
The river bank soil nature and riverbed depth are two important factors acting on groundwater.
灌水(降雨)对各层土壤基质势的影响随深度的增加而减小。
The influence caused irrigation (rainfall) is to each layer soil matric potential reduces with depth of increment.
阐述了降雨量、前期土壤水分含量和下渗历时与水分下渗深度的关系。
The relations between rainfalls, contents of soil water before rainfall, time of infiltration and depth of infiltration were described.
NTS的土壤全碳含量与土层深度显著负相关，各土层间的全碳含量差异不显著。
Soil total organic carbon was negatively correlated with depth of soil, is not significant difference among soil layers in NTS.
通过提供不同外界环境条件的方法，研究了土壤含水量、播种深度及除草剂虎威对鸭跖草出苗的影响。
The effects of different soil water content, depth of sowing and dose of fomesafen on dayflower emergence were studied.
该仪器能现场打印出与深度Z相对应的土壤的CI值、整个测试深度内土壤的平均CI值及Z—CI曲线。
The measured CI value corresponding with depth, average CIvalue and the CI-Z curve can be printed out on the spot.
该仪器能现场打印出与深度Z相对应的土壤的CI值、整个测试深度内土壤的平均CI值及Z—CI曲线。
The measured CI value corresponding with depth, average CIvalue and the CI-Z curve can be printed out on the spot.
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