Urease activity falls with the soil depth.
脲酶活性随土壤深度加深而降低。
The mulching effect decreased with the increase of soil depth.
随土壤深度增加，覆盖的增温效果下降。
Among the soil Characteristics, soil depth is the most important.
最重要的土壤因子是土壤发生层厚度。
In the same profile, organic matter content decreased with the increase of soil depth.
同一土壤剖面的有机质含量随着深度的增加而减少。
Nitrogen, potassium, phosphorus content with increasing soil depth is gradually reduced.
碱解氮、速效钾、速效磷含量随着土层深度的加深逐渐降低。
Strawberries grown in containers need a soil depth of about 25 to 30 centimeters.
若是种植盆栽草莓，则需要25-30厘米深装满泥土的容器。
The soil nutrient in different rangeland stapes was gradually decreased with soil depth.
不同草地类型土壤养分含量的变化是随着土层加深而降低。
With the increase of soil depth, daily variation amplitude of soil temperature decreases.
随着土壤深度的增加，地温日变幅逐渐减小。
Strawberries grown in containers need a soil depth of about twenty-five to thirty centimeters.
若种在容器里，需要有二十五到三十厘米厚的土壤。
Soil available s content increased gradually with increase in soil depth, whereas total s content decreased stepwise.
随着土层加深，有效硫含量逐渐增加、全硫含量依次减少。
It's found that the major factors affecting the forest growth are temperature, stand age, precipitation and soil depth.
发现影响林分生长的主要因子是温度、降水量和土壤厚度。
Daily amplitude of soil temperature gradually decreased and the phase lagged more obviously with the increase of soil depth.
随深度增加，土壤温度日振幅逐渐减小，位相落后也愈加明显。
The influence of pollution removal efficiency and mechanism analyses if adjusting soil depth, the quantity of EM, hydraulic loading period.
土层厚度、EM投加量、水力负荷周期对污染物去除效果的影响及机理分析。
Water flow on slope makes the soil depth uneven at different places, forms the polygenetic soil profiles, and exposes the buried soils by erosion.
坡面水流使坡地土壤厚薄不均，或形成异源剖面，并可使埋藏土壤因冲刷而出露。
With the annual maximum frozen soil depth data of China, analysis is made of the special distribution and decadal change during the recent 50 years.
利用我国年最大冻土深度数据集，分析了我国最大冻土深度的空间分布及年代际变化。
There are some main influence factors, which are the manners of improvement of foundation, soil layer structure, soft soil depth and embankment height.
影响软土路基侧向变形的主要因素有：地基处理型式、土层结构、软土厚度和路堤高度。
The relationship between soil temperature changed range and the soil depth were exponential and the relativity of them was influenced by the irrigation ration.
土壤温度变幅与土层深度成指数关系，且灌溉定额对土壤温度变幅与土层深度之间的相关性具有一定的影响。
As the radius distances and soil layer depth increased, water content of soil will be lessened, and the rate of level reducer decreased as the soil depth increased.
土壤含水量随土层深度和径向距离增大而递减，径向递减率随土层深度增大而减小。
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.
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。
Large scale numeric calculation shows that the active limiting displacement is increasing with the depth of retained soil, and that the increment is zero when the soil depth reach some degree.
大量数值计算表明：主动极限位移随土层深度增加而增加，但到一定深度后其增量为零。
Regardless of preventing evaporation or not, soil water suction decreased firstly and then increased with the increase of soil depth, and soil water suction at the same depth increased with time.
无论在隔绝蒸发还是在自然蒸发条件下，短期内土壤水吸力有随土层深度的增加呈先下降后升高的趋势，而同一深度土层水吸力则随时间的推移而升高；
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.
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.
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。
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