soil formation

The chemical properties of humic substances of soils in loessial area in relation to soil formation conditions

黄土区土壤腐殖物质的化学性质及其与成土条件的关系

To be sown to winter crops sustained losses that far exceeded the rate of new soil formation.

留作播种冬季作物白地所经受的土壤流失远远超过土壤生成的速率。

Desertification leads to the formation of drought and lack of rain. Soil erosion and grassland desertification and degradation will continue to cause the expansion of the area of sand region. Desertification is our country is very serious.

荒漠化导致干旱少雨小气候的形成，水土流失、草原沙化退化严重，而且荒漠沙区面积不断扩大。

The field source is the material base of light hydrocarbon remigration; the field effect, which is effected by the solubility of formation water and country rock property, is the interaction of light hydrocarbons and soil substrate.

场源是轻烃进行运移的物质基础，场作用则是轻烃与环境介质的各种反应，主要受地层水溶解度和围岩性质的影响。

Sand pile is more suitable in peat soil formation disposal.

砂桩挤密法更适用于草炭土路基处理。

All three patterns could abate the effect of rain splash erosion on loose top soil, enhance soil water content and vegetation coverage and promote the formation of the stable harmonious community of forest and grass.

三种模式均能有效地减轻雨滴对疏松表土的溅蚀，提高了土壤含水率和植被覆盖度，利于形成林草和谐共生的稳定群落。

Oxbow Lake is a special lake at the sides of the river in plain or high-plain areas, which plays an important role in the formation of wetlands around this river as well as the changes of ecosystem through the effect of soil moisture around it.

牛轭湖是平原或高平原地区河流两侧形成的特殊的河成湖，它通过河流两侧土壤水分的影响，对河流周边湿地的形成与生态系统的变化起着重要作用。

The formation process of the soil is dominated by accumulation of organic matter which belongs to lithomorphic meadow type, and ferrallitization accompanied by the biological silicatization in A horizon.

成土作用主要是岩成草甸过程的有机质大量积累和富铁铝伴有表土层的生物富硅作用。

Study of the Moisture Migration during Methane Hydrate Formation in Gritty Soil by CT Scan

利用CT扫描对粗砂土中甲烷水合物形成过程中水分迁移特征的分析

In forest ecosystems, Carbon and nutrient allocated to soil by fine root turnover ( formation, senescence, death and decomposition) is an important component of the carbon and nutrient budget.

在森林生态系统中，通过细根的形成、衰老、死亡、分解（即细根周转），向地下部分和土壤中分配的C和养分被认为是陆地C循环和营养循环的重要组成部分。

The main content in T value research including soil formation rate, soil nutrient loss, off site sediment damage, relationship between soil loss and soil productivity, and gully prevention is discussed in details.

对T值研究的主要内容如成土速度、土壤养分流失、泥沙淤积损失、土壤流失与土地生产力的关系、保护沟道侵蚀的重要性等做了详述。

Vegetation restoration could speed up the process of soil formation and raise the infiltration rate of soil.

人工造林可加速土壤层的形成进程，提高土壤的入渗率，如香樟-羊蹄甲基混交林，土壤层稳渗率为4.72mm.min-1，而母质层仅为0.16mm。

When the soil water was below the critical value of soil moisture resisting drought, the way of seedling formation with water and the transplant seedlings with filling water could be used.

当土壤水分低于抗旱临界土壤水分值时，可采用带水成苗、补水移栽的方式。