土壤元素背景值

土壤元素背景值影响因素的剖析

Analysis of the factors affecting the background values of soil elements

浙江省四大平原区土壤元素背景值特征

Background characteristics of soil elements in four plains of Zhejiang Province

影响北京地区土壤元素背景值的因素分析

Analysis of factors affecting soil background contents of metal elements in Beijing area

天津市土壤元素背景值的地域差异及成因分析

The Area Differentiation of the Soil Elements in Tianjin and Its Cause of Formation

淮南市土壤元素背景值与土壤环境质量评估

The soil element background values and assessment on the soil environmental quality in Huainan area

土壤元素背景值的研究&以南方某区域为例

Study on Soil Element Background Values & Taking a Region in the South for Example

北京地区土壤元素背景值处理原则和方法

Principles and Methods of the Analysis of Background Values of Elements in Soils in Beijing Area

内蒙阿拉善地区植物与土壤元素背景值特征及其相互关系

The characteristics of element background values of plants and soils and their relationships in alashan , inner Mongolia

本文讨论了影响北京土壤元素背景值的成土因素，主要有成土母质、生物气候、地貌、时间和人为因素。

The factors of soil formation affecting soil background contents of ele-ments in Beijing area are mainly discussed in this paper .

分析结果表明，影响土壤元素背景值的主要因素，在平原地区是地貌条件，在山区是成土母质。

The results showed that the principal factors affecting the metal background contents were landforms for plain area and soil parent material for mountain area .

用主成份分析研究了影响北京地区土壤元素背景值的主要因素。

The main component analysis has been used to study the principal factors which affect soil background contents of a number of metals in Beijing area .

探讨了该区域农业土壤元素背景值与世界土壤、地壳丰度和国内土壤元素背景值的差异，为开展农业环境科学研究提供依据。

Soil background values of these elements in the area are compared with other soils from China and world as well as the earth crust abundance . This provides basis for the study of agricultural environment in this area .

作者建立了适合绘制背景图的计算机程序包PPTI，并用之绘制了北京平原地区土壤铜元素背景值的趋势面图和等含量线图。

A computer plot package ( PPTI ) for metal background content map plotting was developed and employed to plot the trend charts and isograms for copper background content in soils from Beijing plain region .

云南土壤钴元素背景值及其特征研究

Research on Characteristics and Background Value of Cobalt in Soil of Yunnan

川西茶区土壤重金属元素背景值及其评价

The Evalution for Heavy Metal Content in the Tea Garden Soil in West of Sichuan

川西茶区土壤营养元素背景值研究

Study on nutritive elements background of soil in tea garden in the West of Sichuan

不同的土壤元素环境背景值分布规律既有共性又有差异性。

There are both common and different distribution rule in the environmental background values of soils .

影响土壤元素自然背景值的条件，主要是岩性、成土母质和土壤类型。

What influences the natural background values elements in soil is mainly the rocks , parent meterials and the types of soil .

不同岩性上发育的土壤元素自然背景值序列为基性岩>石灰岩>页岩>正长岩、砂岩>花岗岩。

The order of the natural background values of elements in soil derived from different kinds of rock is as follows : base rock > limestone > shale > sandstone > granite .

中国土壤表层钙元素背景值的地域最佳估值研究

Studies on the localized optimal estimation of calcium content of topsoil in China

河南省土壤中稀土元素背景值的调查研究

Investigation and study of the background level of rare earth elements in Henan province 's soils

本文详细叙述了土壤中元素自然背景值与环境的密切关系。

This article gives an account of the relationships between the natural background values of elements in soil and environmental conditions .

微量元素分析研究表明，琼北地区土壤大部分微量元素背景值与世界及中国土壤较为相似；

The trace element geochemical characteristics of the soils in northeastern Hainan was proceeded in this paper . The background values of the trace elements of the soils are similar to the soils in the world and in China .

浙江省主要类型土壤中元素的环境背景值

Environmental background levels of trace elements in major soil categories in Zhejiang Province

土壤类型对各元素背景值的影响是明显的，漂灰土带9种元素的背景值都最低。

In the bleached podzolic soil the mean values cf 9 elements are all the lowest .

广西桂东北地区农业土壤环境若干重金属元素背景值的调查某物所放置的地方的背景或环境。

Study on Background Values of Some Heavy Metal in Agri - cultural Soils of Northeast Guangxi Province .

本文报告了中国土壤61种元素的背景值以及某些元素在全国的分布特征和变化趋势。

This paper reports the background contents of 61 elements in Chinese soil and the distribution character and change trend of the distribution of some elements in the whole country .

人们要保护环境，当然要保护人们赖以生存的土壤，而土壤中元素背景值的研究自然是必须先行一步的基础工作。

Today , everyone says that we should protect the environment , we must protect the soil which we livelihood generation by generation certainly , but naturally , the study on the environmental background values of soils must be the advanced step for the foundation work .

重金属汞、铜、镁、锰和锌在耕层土壤中其含量大于黄绵土土壤元素背景值；

Heavy metal , such as mercury , copper , magnesium , manganese and zinc among surface layer soil , their content were greater than their background value in loess soil .

通过对上海化学工业区土壤环境背景值的调查研究，得出了该地区土壤元素的环境背景值和分布类型，并与其它地区的土壤背景值进行比较，指出了其异同点。

Based on the investigation of soil environment baseline in Shanghai Chemical Industrial Park , we obtained the element baselines of the soil and distribution types in the Park , and compared with other areas to find out the similarity and difference .