变性土

福建省变性土特性的研究

Study on characteristics of Vertisol in Fujian Province

水分胁迫对燥红土和变性土上玉米叶片过氧化物酶活性的影响

Effects of water stress on peroxidase activity of leaf of maize grown in dry-red soil and vertisol

利用化学分析、X射线衍射、偏光显微镜和扫描电子显微镜等探讨云南省元谋盆地干润变性土钙质结核中的次生方解石的特征和形成过程。

Using such means as chemical analysis , X-ray diffraction pattern , polarizing microscopy and scanning electronic microscopy , this paper has discussed the features and formation processes of secondary calcites in calcium nodules within ustic vertisols in Yuanmou Basin , Yunnan Province .

母质和微地形条件对变性土形成的影响

Effects of parent material and micro - relief on formation of Vertisol

福建变性土肥力特征和农业生产特性的研究

The fertility characteristics and agricultural production characters of Vertisol in Fujian Province

中国变性土的分布、特性和分类

Distribution , characteristics and taxonomic classification of Vertisols in China

中国变性土和变性土性土壤的地理分布

Geographical distribution of Vertisols and vertic soils in China

变性土的膨胀收缩特点及影响因素

Swell-shrink properties and influencing factors of Vertisols

淮北变性土区玉米施用硫·锌微肥的效果

Study on Efficiency of S-Fertilizer and Zn-Fertilizer on Maize Planted in Vertisol in Huaibei Plain

云南元谋盆地干润变性土中次生方解石特征及形成

Characteristics and formation of secondary calcites in ustic vertisols of Yuanmou Basin , Yunnan Province

我国主要变性土的微形态研究

Micromorphological study on some Vertisols in China

在干热的气候条件下，变性土稀土元素较之沉积母岩分异作用不强烈。

Under dry and hot climate , REE fraction weakly in contrasting with parent sedimentary rocks .

淮北变性土性状特点对其生产性能的影响及农业利用对策

Genetic Features of Vertisols , its Influences on Agricultural Production and some Relevant Countermeasures for its Utilization

在对元谋盆地区域土壤&景观分析基础上，研究了干润变性土中铁质结核的特征和形成。

The features and formation of iron nodules were studied in Ustic Vertisols in Yuanmou Basin based on soil-landscape analysis .

本文在各种土壤调查报告和文献的基础上初步编绘了一份中国变性土及变性土性土壤分布图。

This paper deals with a preliminary map of Vertisols and Vertic soils in China , compiled on the basis of different soil survey reports and publications .

本文研究了钙质变性土中铁锰结核的矿质全量组成、微量元素丰度、微形态特征以及土壤和铁锰结核中各形态铁锰氧化物的组成特点。

The chemical composition , microelement abundance , micromorphological characteristics of iron-manganese concretions and the forms of Fe oxides and Mn oxides in iron-manganese concretions and in soils were studied .

随着土壤含水量降低，燥土和变性土上生长的玉米叶片的酶活性的变化规律略有差异，这与二者的土壤物理性质有关；

(ⅱ) there was variation of enzymatic activity of corn leaves grown in dry red soil and vertisol accompanied by declining soil moisture content , which were related to the soil physical properties ;

通过对云南省金沙江干热河谷典型区不同生态景观下土壤典型剖面系列的比较研究，初步确定了燥红土系列和变性土系列土壤退化过程的阶段及其土壤性状特征。

After comparatively researching the typical soil profile series situated in dry and hot valley region of Jinsha river in Yunnan province under the condition of different ecological landscape , the phase of soil degradation process and its characteristics about dry red soil and vertisol series were initially determined .

考虑格栅蠕变性的筋土复合体应力计算方法

A calculation method of micro-stress of composite media composed of reinforcements and soils considering creep effect of geogrids