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对赣东北景德镇市枫树山林区主要林分下的土壤、植物及枯落物中的B,Mo,Cu,Zn,Fe和Mn六种微量元素的状况进行了研究。结果表明:该地区森林土壤中有效B,Mo,Cu和Zn含量很低,有效Fe与Mn含量丰富,绝大部分供试土壤Fe与Mn比例失调,表现为有效Mn含量过高。有效微量元素含量在土层中的分布大致是:B与Mn由表层往下含量逐渐增加,Mo与Fe无规律性,Cu与Zn表层高于下层。影响该地区有效微量元素含量的主要土壤因子是土壤质地、pH(KCl)、有机质、全N、速效P、速效K等。不同树种对微量元素的吸收有选择性,杉木是富集Mn的树种。阔叶林枯落物各元素含量均较高或最高,但枯落物层现存贮量最低;杉木林枯落物各元素含量中等,火炬松除个别元素外一般均较低,马尾松为最低,但枯落物层现存贮量最高。
The status of six trace elements (B, Mo, Cu, Zn, Fe and Mn) in soils, plants and litter under the main stand of Fengshu mountain forest in Jingdezhen, eastern Jiangxi Province was studied. The results showed that the effective contents of B, Mo, Cu and Zn in forest soils were very low, and the contents of available Fe and Mn were abundant. The proportions of Fe and Mn in most of the soils were inhospitable, and the contents of available Mn were too high. The content of available trace elements in the soil is roughly distributed as follows: the content of B and Mn increases gradually from the surface to the bottom, the content of Mo and Fe is irregular, the surface of Cu and Zn is higher than the lower one. The main soil factors influencing the effective trace elements in this area are soil texture, pH (KCl), organic matter, total N, available P, available K and so on. Different species of selective absorption of trace elements, fir is Mn-rich species. Broadleaf forest litter elements of the highest or the highest, but the litter layer is the lowest storage capacity; Chinese fir litter medium content of each element, except for individual elements of loblolly pine are generally lower, masson pine The lowest, but the litter layer is now the highest storage.