施肥对华北落叶松人工林根茎叶中氮磷含量的影响

doi:10.11707/j.1001-7488.20140320

林业科学 ›› 2014, Vol. 50 ›› Issue (3): 139-143.doi: 10.11707/j.1001-7488.20140320

施肥对华北落叶松人工林根茎叶中氮磷含量的影响

徐福利^1,2, 赵亚芳^2,3, 张潘^2,3, 王渭玲¹, 于钦民¹, 王伟东¹, 王国兴¹

1. 西北农林科技大学杨凌 712100;
2. 中国科学院水利部水土保持研究所杨凌 712100;
3. 中国科学院大学北京 100049

收稿日期:2013-03-11 修回日期:2013-12-20 出版日期:2014-03-25 发布日期:2014-04-16
基金资助:
国家重点基础研究发展计划（“973”计划）项目（2012CB416902）。

Effects of Fertilization on Nitrogen and Phosphorus Content in Roots, Stems and Leaves of Larix principis-rupprechtii Plantation

Xu Fuli^1,2, Zhao Yafang^2,3, Zhang Pan^2,3, Wang Weiling¹, Yu Qinmin¹, Wang Weidong¹, Wang Guoxing¹

1. Northwest A & F University Yangling 712100;
2. Institute of Soil and Water Conservation, Chinese Academy of Sciences, Ministry of Water Resources Yangling 712100;
3. University of Chinese Academy of Sciences Beijing 100049

Received:2013-03-11 Revised:2013-12-20 Online:2014-03-25 Published:2014-04-16
Contact: 王渭玲

摘要/Abstract

关键词: 施肥, 华北落叶松, 氮含量, 磷含量, 养分

Abstract:

A field experiment was conducted to study the effects of fertilization on N and P content of roots, stems and leaves of 20-year-old Larix principis-rupprechtii in a plantation in western Qinling mountain. The results showed that N and P fertilization significantly increased N and P content in the roots, stems and leaves. The N and P content increased largest with the application of 15 g·m^-2 N and 7.5 g·m^-2 P₂O₅. For unfertilized L. principis-rupprechtii, the N and P content in leaves was relatively higher at early growth stage, and then declined and fluctuated, and reached to the lowest value in October. As for in stems, the N and P content increased gradually, and reached to the highest value in September and then declined in October. The N content in roots reduced firstly and reached to the lowest in June, and then exhibited an increase trend. The P content in stems was relatively stable, and the highest value was in August. The tree growth was restricted by the shortage of soil nutrient. N fertilizer and P fertilizer should timely be supplemented in this place to meet the nutritional needs of the normal growth of L. principis-rupprechtii.

Key words: fertilization, Larix principis-rupprechtii, nitrogen content, phosphorus content, nutrient

中图分类号:

S753.53

徐福利, 赵亚芳, 张潘, 王渭玲, 于钦民, 王伟东, 王国兴. 施肥对华北落叶松人工林根茎叶中氮磷含量的影响[J]. 林业科学, 2014, 50(3): 139-143.

Xu Fuli, Zhao Yafang, Zhang Pan, Wang Weiling, Yu Qinmin, Wang Weidong, Wang Guoxing. Effects of Fertilization on Nitrogen and Phosphorus Content in Roots, Stems and Leaves of Larix principis-rupprechtii Plantation[J]. Scientia Silvae Sinicae, 2014, 50(3): 139-143.

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施肥对华北落叶松人工林根茎叶中氮磷含量的影响

Effects of Fertilization on Nitrogen and Phosphorus Content in Roots, Stems and Leaves of Larix principis-rupprechtii Plantation

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