土壤圈

土壤圈在全球变化中的意义与研究内容

Significance and research scope of pedosphere in global changes

土壤圈与其它圈层的物质和能量交换理论；

Theory on exchange of matter and energy between pedosphere and atmosphere , hydrosphere , lithosphere , and biosphere ;

CH4是大气中一种重要的温室气体，与土壤圈有着频繁的交换过程。

: CH4 is a main kind of greenhouse gases , and has a frequent exchange process with soil biosphere .

土壤圈水土流失严重，但没受污染，环境质量好。

Although soil erosion here is serious , environment quality is good .

土壤圈在全球土壤变化中的研究内容包括：土壤圈与地圈各圈层的物质循环；

The research scope and contents of pedosphere in global soil changes include material cycling in pedosphere and the other geospheres ;

面源污染物源自于土壤圈中的农业化学物质，因而其形成、迁移过程实质上是污染物在降雨或排水条件下从土壤圈向其他圈层，尤其是向水圈的扩散。

Non-point source pollutants come from the agricultural chemicals in pedosphere , so its formation , transport process was essentially pollutants in rainfall or under the condition of drainage from the pedosphere to the other circles , especially to the hydrosphere .

溶解性有机碳是土壤圈中一种非常活跃的化学物质，它对土壤中化学物质的溶解、吸附、解吸、迁移和毒性等行为均有显著的影响。

It is clearly indicated that dissolved organic carbon ( DOC ) is an active chemical component in soils , which has significant influence on the solution , adsorption , desorption , transport and toxicity of chemical matter in the soil .

自由生活的细菌在土壤根圈中生存。

The free-living bacteria occur in the soil rhizosphere .

1∶20万、1∶5万的水系沉积物测量仅显示出低缓异常，进一步的土壤测量可圈定金矿体的赋存位置、走向。

The stream sediment survey of 1 ∶ 200 000 and 1 ∶ 50 000 only show the lower anomalies , and the further soil survey may block out the location and trend of gold bodies .

报道了2种土壤和2种土壤里小麦内根圈中几类微生物群体数量的测定结果，提出了以好气性细菌总数为参考系的比较方法分析小麦内根圈的根圈效应。

This paper presents data on some microbial population numbers in wheat inner rhizosphere and in the bulk of two soil species , using comparative method , with " the total aerobacteria " as a reference to analyse the wheat rhizosphere effects .

固定态铵是土壤重要的氮素形态之一，它在土壤整个土壤氮循环圈中扮演着重要角色。

Fixed ammonium , an important nitrogen type , plays a remarkable role in soil nitrogen cycle .

土壤水分运动是陆地水循环中最为复杂的重要环节之一，也是土壤圈物质循环的重要组成部分，同时土壤水也是热量和溶质在土壤中传输的主要载体。

The soil-water movement is one of the most complex important part of the terrestrial water cycle , and also is an important part of the material recycling in soil , at the same time soil-water is the carrier of the heat and solute transport in soil .

埋地热油管道通过永冻地带时，会导致土壤解冻，进而导致管道沉陷和土壤物性参数变化。分析管道周围土壤融化圈变化对管道系统的设计、施工和管理是必需的。

The warm oil will produce thawing of ice rich soil adjacent to the pipeline when it crosses through permafrost zone , resulting in thaw settlement of the pipeline and variation of soil properties .