He profiles soil samples from the past 200 years and extrapolates concentrations of heavy metals and foreign substances into a future without industrial inputs.
他研究了过去200年间的泥土样本并预测，重金属和杂质的集聚物会留到没有工业投入的未来。
Most important, hydroponics allows the grower to select where to locate the business, without concern for outdoor environmental conditions such as soil, precipitation or temperature profiles.
最重要的是，种植者可以自由选择水培生产场所而不需要考虑室外环境条件，诸如土壤、降水或温度等。
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.
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。
The heavy metals were irregularly distributed in soil profiles.
重金属在土壤剖面分布没有规律性；
So we suggested that soil magnetic susceptibility profiles could be regarded as a reference for soil classification.
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。
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.
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。
The soil texture chart of Haining County was mapped based on data of mechanical composition of 230 soil profiles.
本文根据230个土壤剖面的机械组成数据绘制了海宁县土壤质地图。
The observations included the micrometeorology, radiation, eddy covariance observation systems and soil water content profiles.
观测系统主要包括：常规气象、辐射、涡度相关法观测系统以及土壤水分观测剖面。
Effect coefficients of the response spectra flat section values of three kinds of soil layer constructions were found by comparing the average values with those of the normal profiles.
通过与正常剖面的反应谱平台值比较，给出了三种土层结构的反应谱平台值的影响系数。
There are also no significant differences can be found in soil profiles for trace element contents.
微量元素在土壤剖面中的分异不明显。
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.
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。
The research results showed that the difference of soil water profiles between plastic mulch and no - mulch treatments was obvious, and the former had more water than the latter.
结果表明：水稻覆膜节水灌溉措施与非覆膜措施相比对春季土壤墒情有明显影响，在本研究中覆膜节水处理区的剖面含水率低于非覆膜节水处理的剖面含水率；
The problems of water_and_salt balance is studied from irrigation district integer, and water_and_salt balance problem at different regions, different levels of soil profiles.
对灌区的水盐平衡问题进行了研究，包括灌区总体上、灌区内不同地区、土壤剖面的不同层次上的盐分平衡问题。
LEACHC is the salinity model describing water flow, solute movement and salt accumulation in soil profiles.
LEACHC是描述土壤水分运动、溶质运移和盐分积累的盐度模型。
Results show that there exists some regularity for the amount and distribution of soil total phosphorus in the profiles.
结果表明，土壤剖面的全磷含量和分布与景观部位存在一定的联系。
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.
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 magnetic susceptibilities were studied by making sectional drawings of 29 typical soil profiles and according to statistical and analytical data got from 90 profiles of main soils in Shandong.
本文研究了山东省主要土壤的磁化率，选取29个有代表性的土壤剖面绘制磁化率剖面图；并对90个土壤剖面的磁测资料进行统计与分析。
The application of rare soil stabilizer in UPVC profiles is analyzed.
分析研究了稀土稳定剂在UPVC异型材生产中的应用。
Paddy soils and six major soil profiles of its parent soil were studied.
对水稻土与起源土壤共六个主要剖面进行了研究。
For horizontally isotropic soil layers, resistivity changes due to stress variation exhibit directivity, that is, the changes measured along different profiles are not identical.
水平各向同性土层，在应力作用下，不同方向电阻率变化不同，呈现出方向性。
For analyzing the adhesion between soil and tillage tools, the profiles of pressure on the wave bulldozing plates were calculated, and we located the position of the maximum friction on the surface.
计算了波纹板表面的压力分布，并指出在土壤与农机具粘附系统中波纹形表面摩擦力最大的位置。
The soil and vegetable Hg had close relations with atmosphere Hg, and the automobile exhaust Hg contamination degree of the highway profiles increased with increasing road age and vehicle flow.
大气汞含量与蔬菜和土壤的汞污染具有明显的相关性。公路系统汽车尾气汞污染强度随公路路龄、车流量增大而增强。
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。
The results show the amounts of NO3-N accumulation in the soil profiles and their extents to leach into the deeper soil layers are increased significantly as the nitrogen fertilizer usage increased.
结果表明：随着氮肥用量的提高，土壤剖面硝态氮累积量明显增加，其向土壤下层淋溶的程度也越严重；
During the investigation of the Weishui River valley, we found many palaeoflood slack-water deposits sandwiched in Holocene loess-soil profiles.
在湋水河谷多个地点发现全新世古洪水平流沉积层赋存于黄土—古土壤剖面中。
The model can predict not only the soil water dynamic profiles and the soil water potential profiles, but the changes of the effective root density with depth and time.
该模型除能预报根系吸水的一些水分动态和水势动态外，还能预报有效根密度的时空变化。
Results showed:The soil organic carbon, nitrogen and microbial biomass C? N of different kinds of wetlands were obviously differences, and decreased with increasing depth at profiles.
结果表明：不同类型湿地土壤碳、氮和微生物C、N有明显差异，而且均随深度的增加而降低。
Analytical results show that the heavy metals are varied with soil profiles.
结果表明，重金属元素随土壤质地不同而有所不同。
Nickel content in soil samples from 129 sites and 32 soil profiles has been measured.
作者测定了北京地区129个采样点及32个剖面的农业土壤样品中的镍含量。
Soil profiles observation and soil samples physical properties analysis methods were adopted to study the possible factors contribute to form the waterlogged land.
通过野外土壤剖面观测和取样进行物理性质测定分析岗中洼成因。
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