中国土壤胶体研究—Ⅶ.内蒙暗栗钙土的粘土矿物
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SOIL COLLOID RESEARCHES—Ⅶ. CLAY MINERALOGY OF THE DARK CHESTNUT EARTH OF INNER MONGOLIA
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    摘要:

    内蒙栗钙土区属半干旱而温和的大陆性气候,年平均温度-2.4-6.5℃,冬夏温差很大,约差30-49℃,夏季平均温度为20-25℃,比黑钙土地区高,年降水量200-350毫米,多集中夏季。由于气候干旱,相对湿度很低,蒸发量大于降水量数倍,大陆性气候十分明显。植被以禾本科草及篙属的短草为主。地形主要为高平原,包括一部分丘陵岗地。

    Abstract:

    A comparative study of the chemico-mineralogical properties of three profiles of chestnut earth of Inner Mongolia developed from granite,basalt and loess were made by chemical analysis,thermal differentiation and X-ray diffraction.The composition of the primary minerals of the three soils differs markedly,but that of the secondary minerals remains much alike.They are composed essentially of montmorillonite,although illite is also present.The influence of parent materials shows more prominently in the accessory secondary minerals,especially in the deeper soil horizons.It is suggested that under the steppe condition,montmorillonite might be eaher transformed into illite through repotassication,or weathered into kaolinite.

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蒋梅茵,许冀泉.中国土壤胶体研究—Ⅶ.内蒙暗栗钙土的粘土矿物[J].土壤学报,1966,14(1):73-79. CHIANG MEI-IN, HS&#;CHI-CHUAN. SOIL COLLOID RESEARCHES—Ⅶ. CLAY MINERALOGY OF THE DARK CHESTNUT EARTH OF INNER MONGOLIA[J]. Acta Pedologica Sinica,1966,14(1):73-79.

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  • 在线发布日期: 2013-02-25
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