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首页> 外文期刊>Indian Journal of Forestry >SOIL MINERALOGY OF FOREST SOILS OF CHAMOLI DISTRICT, UTTARAKHAND
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SOIL MINERALOGY OF FOREST SOILS OF CHAMOLI DISTRICT, UTTARAKHAND

机译：UTTARAKHAND沙莫利地区的森林土壤矿物学

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摘要

Soil properties and sand mineralogy were studied in forest area of Chamoli district of Uttarakhand covering four forest divisions namely Badrinath Forest Division, Kedamath Wildlife Forest Division, Nanda Devi National Park and Alaknanda Soil Conservation Forest Division with different ranges viz. Chamoli, Joshimath, Gopeshwar, Madhya Pindari, Paschim Pindari, Naraingarh, Dhanpur, Attagad, Nandprayag and Pipalkoti. The study area was selected on the basis of altitude, vegetation distribution, parentmaterial and topography. The forest type of the area is Himalayan moist temperate forests with Picea smithiana, Cedrus deodara, Quercus leucotrichophora, Pinus roxburghii, and Miscellaneous (Amaltas, Rohani, Asain, Semal and Mahua) as the dominant species. Geologically, the rocks of the study area are pre-cambrian to early paleozoic in age with recent and subrecent deposits. The soils were generally sandy loam in texture with acidic pH. Organic carbon is generally higher in forest areas at high altitudewith maximum accumulation in the surface layer. Cation exchange capacity of the soil in different depth showed inconsistent trend. Exchangeable Ca~(2+)and Mg~(2+) increased in the sub-surface horizons in some of the profiles due to presence of limestoneparent material. The study suggested that P. smithiana grows well on schist and gneiss, C. deodara flourishes well on limestone, dolomite and quartzite, Q. leucotrichophora flourishes with good regeneration on phyllite and slate, P. roxburghii grows onquartzite and limestone and miscellaneous forests on boulders, limestone, shales, pebbles. Mineralogical composition showed that variations are mostly due to nature of parent rock and weathering stage. The study, therefore, indicates the presence of lowto moderate amounts of weatherable minerals suggesting their podzolic nature.
机译：在北阿坎德邦查莫里地区的森林地区研究了土壤特性和砂矿物学，覆盖了四个森林区，分别是巴德林纳特森林区，凯达玛斯野生动物区，南达德维国家公园和阿拉克南达土壤保护区。 Chamoli，Joshimath，Gopeshwar，Madhya Pindari，Paschim Pindari，Naraingarh，Dhanpur，Attatag，Nandprayag和Pipalkoti。根据海拔高度，植被分布，母体和地形选择研究区域。该地区的森林类型为喜马拉雅湿润温带森林，其中云杉云杉，雪松雪松，栎栎，樟子松和杂种（Amaltas，Rohani，Asain，Semal和Mahua）为主要物种。在地质学上，研究区的岩石是前寒武纪至早古生代，具有近期和近来的沉积物。土壤通常是带有酸性pH值的沙壤土。在高海拔的森林地区，有机碳通常较高，而在表层的堆积量最大。不同深度土壤的阳离子交换量趋势不一致。在某些剖面下，由于石灰石母质的存在，可交换的Ca〜（2+）和Mg〜（2+）在次表层增加。研究表明，史密斯氏菌在片岩和片麻岩上生长良好，杜氏梭菌在石灰石，白云岩和石英岩上生长良好，白斑Q. leucotrichophora在千枚岩和板岩上生长良好，再生良好，罗氏疟原虫在石英岩和石灰石上生长，在杂石上生长杂木。 ，石灰石，页岩，鹅卵石。矿物学组成表明，变化主要归因于母岩的性质和风化阶段。因此，该研究表明存在低至中等含量的耐候矿物，表明它们具有过时的特性。

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