张力计结构简单，能可靠地测量土壤吸力，但是监测土壤的剖面吸力有一定的困难。
The tensiometer can measure the suction of soil reliably, and its structure is simple. But it has certain difficulty in monitoring the sectional suction of the soil.
该站点提供大量热带土壤的剖面图，如：秘鲁的旱成土、肯尼亚的变性土、尼日利亚的淋溶土、泰国的软土、巴西的灰土、红土岩层等。
This site offers images from the tropics e. g. pictures of soil profiles: aridisol in Peru, vertisol in Kenya, alfisol in Nigeria, mollisol in Thailand, spodosol in Brazil, laterite outcrops etc.
了解这些特性是对土壤剖面、土壤类型、土壤生产力和土壤管理进行研究的一个必要的先决条件。
An understanding of the nature of these characteristics is an essential prerequisite to the study of soil profiles, soil types, soil productivity, and soil management.
通过对青海主要土壤类型剖面的有机质、机械组成、阳离子交换量三者之间的关系分析。
The relationship was analysised between organic matter, soil granular composition and cation exchange capacity(CEC) in Qinghai major soil types.
降雨次数和降雨量是左右溶质在土壤剖面中沉积位置高低的决定性因素。
Rainfall frequency and amount are thus crucial factors in determining the position of deposition in a soil profile.
混交林的根系在土壤剖面上，垂直分布趋于均匀。
Roots in soil profile of the mixed stands show a well distribution.
并测定和比较了2年生银合欢林地和相应荒地的土壤剖面性状及养分含量。
The feature of soil profile and the contents of soil nutrients were determined after 2 years plantation of leucaena.
以吉林省中部玉米带黑土为供试土壤，研究了黑土不同剖面构型的结构特性。
Construction properties of different soil profile constitutions in black soil of corn belt in Jilin were systemically studied.
对“土壤磁性剖面”的分异作了若干解释和讨论。
Some explanations and discussions about the differentiation of the "soil magnetic profile" were given.
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.
土壤水分物理特征具有较明显的剖面垂直分布规律。
The soil water physical properties have obviously profile vertical distribution law.
不同耕作处理能影响土壤养分的剖面分布和养分含量及肥料的利用效率。
Tillage treatments affect soil nutrient in soil profile, soil nutrient content, and fertilizer use ratio.
通过该区太古界一新生界氟的地层地球化学剖面及岩浆岩和土壤中氟的丰度的研究，论证了该区为一高氟的地球化学区。
This region is demonstrated as a geochemical region with high fluorine through studies on the fluorine contents of soils, magmatic rocks and the Archean?Cenozoic strata geochemical profile.
所以，对石灰土-土壤剖面化学组成的研究应同时将土壤和土壤水加以考虑。
So soil water should be analyzed as well as lime soil in the study on lime profile.
微量元素在土壤剖面中的分异不明显。
There are also no significant differences can be found in soil profiles for trace element contents.
选定的手段是土壤剖面及面积性土壤测量，测定的相态是水提取金、有机结合金、自然金。
Selected means are soil section and region surveys. Tracing phase states are water extracted gold, organic combined gold and nature gold.
不同立地土壤无机硫、吸附硫含量在剖面中的分布规律与土壤全硫类似。
Compared with the total sulfur, there are the same distribution orders in profile at inorganic sulfur and adsorbed sulfur.
土壤剖面特性的不同和质地的差异为我们提供了区分的条件和依据。
The differences of soil section features and soil texture provide conditions and bases for us to distinguish.
土壤磁化率剖面受纬度、土壤母质磁性本底、气候条件、土壤熟化度，及发育度、土壤颗粒等因子的影响。
It was observed that the magnetic susceptibility profile in soils related to the latitude, magnetic base of the parent materials, climatic condition, soil pedogenesis and ripening.
各土壤间磁化率剖面差别非常明显，建议将其作为土壤分类的参考。
So we suggested that soil magnetic susceptibility profiles could be regarded as a reference for soil classification.
通过对宁夏固原不同植物过程土壤剖面有机碳含量和含水量的测定和分析。
The contents of organic carbon and water of different plant processes in soil profile of NingXia GuYuan are measured and analyzed.
通过野外采样和室内测定，研究了湖南省主要类型土壤反射光谱的剖面变化特性。
We studied reflecting spectral change characteristics in the depth profile of major soils in Hunan province through field sampling and lab analysis.
在稳定的土壤发育条件下，土壤剖面有可以鉴别的诊断层，其中一些性状特征沿剖面分异明显。
Soil profiles have the obvious diagnostic horizons and properties and characteristics of soils have distinct change along their profile depth under stable conditions of soil development.
管流出现的时间、管流历时与降雨强度、降雨历时、土壤前期水分含量和土管所处的土壤剖面位置等因素有关。
The appearing and lasting time of pipe flow is related to the rainfall intensity, duration of rainfall, the previous water content of soil and the location of soil pipe in soil section.
研究了川中丘陵区紫色水稻土土壤腐殖质碳的剖面分布及其组成特征，探讨了土壤腐殖质与活性有机碳、土壤全氮含量的关系。
The paper studied the distribution of humus carbon in soils sections and the characteristics of humus carbon fraction of purple paddy in Mid-Sichuan Hilly Region.
土壤剖面中a层的流失是土壤养分流失的标志。
A layer loss in soil profile is a sign of soil nutrient loss.
此模型通过有限差分法模拟了降雨或灌溉水人渗、降雨或灌溉水以后土壤水分在剖面上的重新分配情况。
This model has simulated redistribution of infiltration and soil-water due to precipitation and irrigation at the profile by finite different method.
完整的陕西大荔人遗址剖面由上部黄土—古土壤序列和下部砂土地层两部分组成。
The intact stratigraphic profile at the Dali Man site consists of the upper Loess-Paleosol series and the lower sandy soil series.
水力传导度的变化直接影响土壤剖面的水盐运动，并和土壤溶液的盐分浓度及其组成有很大关系。
Soil hydraulic conductivity is closely related to the movement of water and salts in soil profiles and is highly affected by solution salt concentration and its composition.
探讨土壤剖面中砂质夹层的水分行为，试验采用模拟土柱进行研究。
Simulated soil column experiments were done to study the mechanisms of water reserved by sand interlayer in the profile.
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