土壤发育

5）利用总有机碳、全氮、高岭石含量、磁化率、粘粒含量作为指标计算了土壤发育指数（SI）。

Magnetic susceptibility , total organic carbon , total nitrogen , kaolinite , and clay contents were used to form soil development index ( SI ) .

土壤发育受第四纪冰川影响明显，成土年龄短；

The glacier influence of Quaternary Period affect soil development obviously ;

运用质量平衡原理，以Ti为非移动元素探讨元素的迁移，发现元素淋溶作用在土壤发育初期最强烈。

By the mass balance method to element migration was discussed with Ti as immobile element . The results show that elements leach most extremely in weakly developed soils .

土壤发育具淋溶和次生粘化特点。

Soil development shows the characteristics of leaching and secondary clayization .

岩成土的磁性测量及其与土壤发育的关系

Magnetic measurements on rock soils and its relation to soil development

伊犁河流域土壤发育规律研究

Study on the Soil Development Rule in YILI River Basin

关中东部地区全新世土壤发育及记录的水文事件

Hydrological events recorded in the Holocene Soil in Guanzhong area , China

土壤发育指数及其在黄土&古土壤序列中的应用

A soil development index and its application to loess-paleosol sequences

秦岭黄土-古土壤发育时的植被与环境

Vegetation and environment during period of loess & paleosol development in the Qinling Mountains

紫色森林土壤发育特点的研究

Study on Developmental Characteristics of Purple Forest Soil

茶园土壤发育度与土壤及茶叶含氟量的关系

Effects of Soil Development on the Fluorine Contents in the Soil and Tea Leaf

热带土壤发育过程的定量研究&以海南岛北部为例

Quantitative studies on development of tropical soils : a case study in northern Hainan Island

黄土高原水土保持措施对侵蚀土壤发育的效应

Effects of soil and water conservation measures on eroded soil development in the Loess Plateau

浙北嘉湖平原沉积环境与土壤发育的探讨

Approach on sedimentary environments and soil development in Jia Hu plain of the Northern Zhejiang Province

沙漠生物结皮土壤发育特征的研究

Development Characteristics of Desert Biological Crust

铁、锰在土层中的分化程度，随土壤发育的程度而增加；

The degree of differentiation of iron and manganese in horizons increased with the degree of soil development .

从土壤发育程度来看，发育程度较弱的土壤上生产的烟叶质量较好。

Based on the development degree of soil , the developing soil can get better quality of tobacco leaves .

山西绛县土壤发育的环境因素与小流域治理研究

The environmental factors on soil development and research on the regulation of small drainage area in Jiang county Shanxi Province

这种风尘沉积作用即使在气候较为湿热的古土壤发育时期也未中断。

The dust sedimentations have never been intermitted even in the soil-forming periods when the climates were warmer and wetter .

认为全新世早期气候较温和干燥，风尘堆积速率降低，有一定生物风化成壤作用，土壤发育表现为边沉积边成壤；

In the early stage of the Holocene , dust deposition was reduced because of the climatic warming , and the biological weathering was beginning .

生物结皮具有明显的养分、盐分和细粒物质的聚集作用，对表层土壤发育有积极的意义。

Biological soil crusts enhanced clay content , accumulated nutrients and salinity in the soil , which are important for the development of the soil .

枯枝落叶层是森林植被对降雨再分配的第2作用层，也是对土壤发育具有重要影响的层次。

Litter is the second acting layer which can redistribute the rainfall in forest , and it also can give important effect to the 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 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 .

通过对各土系的典型单个土体的全面的理化分析，确定样区土壤发育有淡薄表层、黏化层、黏磐层、水耕表层和水耕氧化还原层5个诊断层；

Through the complete analyzing of representative pedons , there are5 diagnostic horizons , such as Ochric epipedons , Argic horizon , Claypan , Hydragric epipedon , Hydragric horizon ;

这一结果有利于这样一种土壤发育机制解释，即古土壤发育与黄土堆积过程同时进行，只是在古土壤发育时期黄土的堆积过程缓慢，成土作用大于黄土堆积作用而发育土壤。

This favors the soil-forming mechanism that the loess deposition and the soil formation take place simultaneously , with the soil developing as a result of greater rate soil formation .

本文将塔克拉玛干沙漠土壤发育条件分为稳定、不稳定、极不稳定三类，它们对于土壤性状有着不同的影响。

The paper divides the conditions of soil development into stable , unstable , extremely unstable types in the Taklimakan Desert , which have different influence on properties and characteristics of soils .

伊犁河流域气候温和湿润，植被覆盖度高，土壤发育充分，土壤类型及适宜性多样，土地资源丰富，质量结构上乘。

The climate is mild and humid , the vegetation overcast high , soil development fully , soil types and adaptability multiplicity , soil resources abundant , quality and makeup nicer in YILI river basin .

土壤发育由浅变深；以江段、岸位、坡度、岸形、土壤种类为依据划分了2个立地类型区、10个立地类型组、26个立地条件类型。

According to river segments , bank location and grad i-ent , bank shape and soil type , 2 sorts of site sections , 10 sorts of group site sections and26 sorts of specific sites are classified .

从孢粉组合来看，秦岭黄土堆积时的植被一般为森林草原型或草原森林型，气候较寒冷但偏湿，古土壤发育时的植被一般为夏绿阔叶林型，反映出暖温带气候。

The sporopollen assemblages show that loess was deposited under forest steppe or steppe forest vegetation , the climate was cold and somewhat humid , and paleosol developed under summer green broadleaf forest vegetation of humid warm climate .

研究结果表明该区土壤发育处于初始阶段，土壤在矿物成分、有机物质、土壤形成物等方面仍然在很大程度上保留着冲积物的特征。

The results show that soil development in the Yellow River delta region is in the initial stage and the soil maintains the peculiarities of alluvial deposit in some aspects , including mineral composition , organic substance and pedological features .