| 甘州区农田耕层土壤微量元素分布空间变化研究 |
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| 引用本文： | 周俊,牛怡,杨子凡,董博.甘州区农田耕层土壤微量元素分布空间变化研究[J].中国农学通报,2015,31(11):222-228. |
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| 作者姓名： | 周俊 牛怡 杨子凡 董博 |
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| 作者单位： | 张掖市农业节水与土壤肥料管理站,甘肃农业大学,甘肃农业大学,甘肃省农业科学院 |
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| 基金项目： | 甘肃省科技支撑计划“旱作农田精确施肥技术研究”(1104NKCA093)。第一 |
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| 摘 要： | 通过分析甘州区农田耕层土壤微量元素(Fe、Mn、Cu、Zn、B)的空间分布,从水平与垂直方向对全区农田耕层土壤微量元素含量特征进行研究,并对照全国土壤微量元素有效态含量分级标准得出全区各乡镇耕层土壤微量元素含量丰缺情况。主要结论如下：在0～5 cm、5～10 cm 、10～20 cm土层水平方向上,土壤各有效态微量元素分布特征差异较大,主要表现为西北向东南逐渐减小和中间低四周高的特征。从垂直方向来看,全区土壤有效铁、有效锌平均含量随着土层的加深呈缓慢增加的趋势；土壤有效铜、有效硼平均含量均表现为随着土层的加深而减小；土壤有效锰平均含量的趋势为上下层高,中间层低；个别乡镇的土壤微量元素垂直分布特征与全区存在差异。全区大部分乡镇土壤有效铁、有效锰、有效铜、有效锌含量属于适中水平；土壤有效硼含量属于缺乏水平。建议今后在种植中应向该区土壤施入硼肥。
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| 关 键 词： | 血液指标 血液指标 |
| 收稿时间： | 2014/12/2 0:00:00 |
| 修稿时间： | 2015/3/25 0:00:00 |
Spatial variability on soil trace elements distribution in cultivated fieldof Ganzhou District |
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| Abstract: | This paper showed a study on the spatial distribution of soil trace elements (Fe, Mn, Cu, Zn, B) of Ganzhou District through the topsoil. From two directions of the horizontal and vertical characteristics, we researched on content of soil trace elements in this region. And according to the National soil trace element standards, we had an understanding whether the content of soil trace elements in this area lack or not. The main conclusions are as follows : in the horizontal direction of 0 ~ 5 cm, 5 ~ 10 cm, the 10 ~ 20 cm soil layer , each valid state distribution of trace elements are quite different , mainly characteristics showed that decreases northwest to southeast , and low in the middle surrounded by high. From the vertical direction , average content of the hole region"s soil available Fe , Zn showed a slow upward trend with a deeper soil depth ; the situation of the average content of soil available Cu, B in the hole area was contrary with the soil available Fe , Zn; trends in the region"s average content of soil available Mn was down -storey , low intermediate layer ; the vertical distribution of trace elements in some towns is different from the region . Contents of soil available Fe, Mn, Cu, Zn in most of the towns are on the effectively moderate level ; and the soil available B belong to the lack of content level. We suggested that this area should be applied into the soil Boron for future planting . |
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| Keywords: | Ganzhou District Trace elements Spatial distribution sufficiencySandSdeficiency |
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