| 塞罕坝地区云杉人工林土壤养分的研究 |
| |
| 作者姓名： | 张岩 刘强 许中旗 姜清山 姜青红 |
| |
| 作者单位： | 河北省塞罕坝机械林场总场,河北围场068466,河北农业大学林学院,河北保定071000 |
| |
| 基金项目： | 承德国家可持续发展议程创新示范区建设科技项目（202008F025）； 河北省省属高校基本科研业务费（KY2021113）。 |
| |
| 摘 要： | 研究了塞罕坝地区云杉人工林土壤有机质、pH、全磷、全氮、全钾、速效磷、速效钾和碱解氮的含量在不同地势（沟底、坡面和曼甸）和不同土层深度条件下的差异。结果表明，0～10 cm深度土壤各类养分在坡面地势的含量显著高于沟底和曼甸，其中有机质、全磷、速效磷和碱解氮含量平均相差50.7%、34.8%、37.4%和46.3%，沟底的速效钾和碱解氮显著高于曼甸；10～20 cm深度土壤有机质含量、全磷含量、全钾含量、速效磷含量和碱解氮含量存在显著差异，以上元素在坡面地势的含量比沟底和曼甸平均高出46.7%、34.2%、22.7%、27.3%和63.8%，但沟底和曼甸中各类元素的差异不显著；20～40 cm深度土壤有机质、速效磷和碱解氮含量存在显著差异，坡面的含量明显高于沟底和曼甸，但沟底和曼甸中各类元素的差异不显著。相同地势条件下，各类土壤养分元素均呈现出地表高于地下的现象，其中0～10 cm深度土壤有机质、全氮、全钾和碱解氮含量分别比20～40 cm深度土壤高出65.2%、53.2%、80.3%和64.8%,pH在不同土壤深度间无明显差异。研究结果为塞罕坝云杉人工林经营提供了理论依据。
|
| 关 键 词： | 土壤深度 地势条件 森林经营 |
| 收稿时间： | 2021-12-20 |
Study on soil nutrients of spruce plantation in Saihanba area |
| |
| Authors: | ZHANG Yan LIU Qiang XU Zhongqi JIANG Qingshan JIANG Qinghong |
| |
| Institution: | 1.Saihanba Mechanized Forestry Center of Hebei Province,Weichang 068466,China;2.College of Forestry,Hebei Agricultural University,Baoding 071000,China |
| |
| Abstract: | The difference of soil organic matter,pH,total phosphorus,total nitrogen,total potassium,available phosphorus,available potassium and alkali-hydrolyzed nitrogen content among different terrains(slop,gully bottom and wet land)and soil depth in artificial spruce forest in Saihanba area were analyzed.The results showed that the content of soil nutrients in slope terrain was significantly higher than those in gully bottom and wet land in soil depths of 0-10 cm,in which the content of soil organic matter,total phosphorus,available phosphorus and alkali-hydrolyzed nitrogen content were averagely differed with 50.7%, 34.8%, 37.4% and 46.3%.The available phosphorus and alkali-hydrolyzed nitrogen content in gully bottom were significantly higher than those in wet land.The content of organic matter,total phosphorus,total potassium,available phosphorus and alkali-hydrolyzed nitrogen were significantly different among different terrains in soil depths of 10-20 cm.They were averagely 46.7%,34.2%,22.7%,27.3% and 63.8% higher in slope than those in gully bottom and wet land. However,the content of soil nutrients was not significantly differed between gully bottom and wet land.The content of organic matter,available phosphorus and alkali-hydrolyzed nitrogen in slop terrain were significantly higher than those in gully bottom and wet land in soil depth of 20-40 cm.The content of soil nutrients was not significantly differed between gully bottom and wet land.In the same terrain,the soil nutrients in soil surface were higher than those in underground.The soil organic matter,total nitrogentotal potassium and alkali-hydrolyzed nitrogen content were 65.2%,53.2%,80.3%and 64.8% higher in slop than those in gully bottom and wet land.The pH were not significantly differed among different soil depth. |
| |
| Keywords: | soil depth site conditions forest management |
| 本文献已被 万方数据 等数据库收录！ |
| 点击此处可从《》浏览原始摘要信息 |
| 点击此处可从《》下载免费的PDF全文 |
|
