| 察布查尔县土壤碳氮磷钾垂直分布规律研究 |
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| 引用本文： | 赛牙热木·哈力甫,宋瑞清,艾克拜尔·伊拉洪,阿不都赛买提·乃合买提,迪里努尔·艾力,米日尼沙·买买提明.察布查尔县土壤碳氮磷钾垂直分布规律研究[J].干旱区地理,2018,41(3):582-591. |
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| 作者姓名： | 赛牙热木·哈力甫 宋瑞清 艾克拜尔·伊拉洪 阿不都赛买提·乃合买提 迪里努尔·艾力 米日尼沙·买买提明 |
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| 作者单位： | 1.东北林业大学林学院, 黑龙江 哈尔滨 150040;2.新疆农业大学草业与环境科学学院, 新疆 乌鲁木齐 830052 |
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| 基金项目： | 国家自然科学基金资助（41461048） |
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| 摘 要： | 以察布查尔县1 191~2 656 m不同海拔草原土壤为研究对象，研究有机质（外加热法，10.18~74.3 3 mg·kg-1）、全氮（自动凯氏定氮仪，0.17~2.6 g·kg-1）、碱解氮（扩散法，14.9 7~198.72mg·kg-1）、磷元素（钼锑抗比色法，全磷：0.12~0.76 g·kg-1、速效磷：20.7 4~153.64 mg·kg-1），钾元素（火焰光度计法，全钾：9.81~18.64 g·kg-1、速效钾：659.05~1 001.45 mg·kg-1）含量垂直分布特征。结果表明碳、氮、磷、钾均随土层深度的增加而降低；除钾元素外碳、氮、磷随海拔高度的增加而上升；相关性分析结果显示，0~20 cm土层中，海拔高度与碱解氮呈正极显著性相关（p < 0.05，R=0.838**），与土壤有机、全氮呈正显著性相关（p < 0.05，R=0.831*、R=0.751*）；有机质与碱解氮呈正极显著性相关（p < 0.05，R=0.988**），与全磷呈正显著性相关（p < 0.05，R=0.726*），20~40 cm土层中，海拔高度与有机质、碱解氮、全氮、全磷呈正相关，与速效磷、速效钾、全钾呈负相关；有机质与碱解氮、全氮成正极显著性相关（p < 0.05，R=0.867**、R=0.970**），碱解氮与全氮呈正极显著相关（p < 0.05，R=0.914**），40~60 cm土层中，海拔高度与有机质、碱解氮、全磷呈正相关，与速效磷、全磷、速效钾、全钾呈负相关；有机质与碱解氮、全氮呈正极显著性相关（p < 0.05，R=0.884**、R=0.966**），与速效磷、全钾呈正相关，与全磷、速效钾呈负相关；碱解氮与全氮呈正极显著性相关（p < 0.05，R=0.952**）。
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| 关 键 词： | 海拔高度 土层深度 土壤碳 氮磷钾 |
| 收稿时间： | 2017-11-29 |
Vertical distribution of soil nitrogen,phosphor and potassium in Qapgal County |
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| HALIPU Saiyare,SONG Rui-qing,YILAHONG Aikebaier,NAIHEMAITI Abudusaimaiti,AILI Dilinuer,MAIMAITIMING Mirinisha.Vertical distribution of soil nitrogen,phosphor and potassium in Qapgal County[J].Arid Land Geography,2018,41(3):582-591. |
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| Authors: | HALIPU Saiyare SONG Rui-qing YILAHONG Aikebaier NAIHEMAITI Abudusaimaiti AILI Dilinuer MAIMAITIMING Mirinisha |
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| Affiliation: | 1.College of Forestry, Northeast Forestry University, Harbin 150040, Heilongjiang, China;2.College of Prataculture and Environmental Science, Xinjiang Agricultural University, Urumqi 830052, Xinjiang, China |
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| Abstract: | The vertical distributions of soil organic matter(Outside Heating Method, 10.1 8-74.33 g·kg-1), total nitrogen(Kjeldahl Method, 0.17-2.6 g·kg-1), base soluble nitrogen(diffusion method,14.97-198. 72 mg·kg-1), phosphorus(spectro-colorimetric methods, total phosphorus:0.12-0.76 g·kg-1, available phosphorus:20.74-153.64 mg·kg-1), potassium(Flare Photometer, available potassium:659. 05-1 001.45 mg·kg-1, total potassium:9.81-18.64 g·kg-1)at the altitude from 1 191 to 2 656 m in Qapgal County, Xinjiang, China were analyzed. The results showed all the nutrient indexes were decreased as the soil depth got increased and the differences were significant at different soil layers. Except potassium, all other indexes were increased as the latitude gets increased. The correlation analysis showed that, in the soil of 0 to 20 cm depth, there was a significant positive correlation between the altitude and the available phosphorus(p < 0.05,R=0.838**), and also a significant positive correlation between the altitude and the soil organic matter and total nitrogen(p < 0.05,R=0.831*, R=0.751*). There was a significant positive correlation between soil organic matter and base soluble nitrogen(p < 0.05,R=0.988**) and positive correlation between soil organic matter and total phosphorus(p < 0.05,R=0.726*). In the soil of 20 to 40 cm depth, the altitude was positively correlated with organic matter, base soluble nitrogen, total phosphorus, total nitrogen, and negatively correlated with potassium, available potassium, available phosphorus. The soil organic matter was correlated positively and significantly with base soluble nitrogen and total nitrogen(p < 0.05,R=0.867**,R=0.970**) and base soluble nitrogen was positively correlated with total nitrogen (p < 0.05,R=0.914**). In the soil of 40 to 60 cm depth, the altitude was positively correlated with organic matter, base soluble nitrogen, total phosphorus, and negatively correlated with total potassium, available potassium, available phosphorus and total phosphorus. The soil organic matter was correlated positively and significantly with base soluble nitrogen and total nitrogen(p < 0.05, R=0.884**, R=0.966**) and positively correlated with total potassium and available phosphorus, but negatively correlated with total phosphorus and available potassium(p < 0.05,R=0.914**). Base soluble nitrogen was positive extremely correlated with total nitrogen(p < 0.05,R=0.952**). |
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| Keywords: | altitude soil depth soil carbon soil nutrient N P K |
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