HUO Xiao-peng,ZHANG Xing-hua,LI Xian-wei,et al.Study on the Soil Nutrient in Different Forest Types in Miyaluo Forest Area of Western Sichuan[J].Research of Soil and Water Conservation,2012,19(03):58-62,66.
川西米亚罗林区不同林分类型土壤养分性质研究
- Title:
- Study on the Soil Nutrient in Different Forest Types in Miyaluo Forest Area of Western Sichuan
- Keywords:
- Miyaluo; forest type; soil nutrient
- 分类号:
- S714.2，S714.8
- 摘要:
- 采用野外调查、取样和室内实验分析相结合的方法，研究了川西米亚罗林区9种林分类型林地土壤养分特征。结果表明：（1）9种林分类型土壤pH均小于5.6，属于酸性土壤；林地土壤有机质含量大小顺序为：冷杉林（FF）>40 a云杉-落叶松林（D）>70 a云杉林（F）>40 a云杉林（C）>灌木林（SF）>桦木林（BF）>40 a落叶松林（B）>25 a云杉-落叶松林（A）>55 a云杉林（E）；冷杉林土壤全N含量最大，25 a云杉-落叶松林最小；（2）9种林分类型中，40 a落叶松林地全K含量最大，40 a落叶松-云杉林土壤速效K含量最大；（3）9种林分类型中，40 a落叶松林地全P含量最大，速效P含量以55 a云杉林为最大；（4）9种林地中，土壤pH与土壤有机质极显著负相关，与土壤全N显著负相关；土壤有机质含量与全氮极显著正相关，与土壤有效磷和全钾显著负相关；土壤全钾和全磷分别与土壤速效钾和有效磷相关性不显著。
- Abstract:
- In this paper, by using the method of soil sampling and laboratory analysis, the soil nutrient of different forest types in Miyaluo forest area of western Sichuan have been investigated. The results showed that: (1) the order of the soil organic matter contents in the different forest types was fir forest (FF)>40 a Picea baifouriana-Larix kaempferi plantation (D)>70 a Picea baifouriana plantation (F)>40 a Picea baifouriana plantation (C)>shrub forest (SF)>birch forests (BF)>40 a Larix kaempferi plantation (B)>25 a Picea baifouriana-Larix kaempferi plantation (A)>55 a Picea baifouriana plantation (E), and the maximum soil total N content in different forest types was found in FF; (2) the maximum soil total K content in different forest types was observed in B, the maximum soil available K content was found in D; (3) the maximum soil total P content was observed in B in the different forest types, and the maximum soil available P content was found in E; (4)there was great significant negative correlation between soil pH and soil organic matter content, and negative correlation between soil pH and soil total N. The significant positive correlation was found between soil organic matter content and soil total N, and soil available P and soil total K had negative correlation with soil organic matter content. There was no obvious correlation between soil total K and available K, as well as soil total P and soil available P.
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备注/Memo
收稿日期:2011-10-18;改回日期:2011-11-17。
基金项目:国家“十一五”科技支撑项目（2006BAC01A11）；国家自然科学基金项目（30771717）；教育部重点学科博士点基金（20050626001）
作者简介:霍小鹏（1984- ），男，陕西省延安市人，硕士，主要从事生态影响评价研究。E-mail：huoxiaopeng1128@yahoo.com
通讯作者:李贤伟（1963- ），男，四川省达州人，教授，博士生导师，主要从事森林生态与恢复生态研究。E-mail：lxw@sicau.edu.cn