长期施用不同肥料对红哺鸡竹林叶片碳、氮、磷化学计量特征的影响

生态学杂志 ›› 2011, Vol. 30 ›› Issue (12): 2667-2671.

长期施用不同肥料对红哺鸡竹林叶片碳、氮、磷化学计量特征的影响

郭子武1,虞敏之2,郑连喜2,杨清平1,李迎春1,陈双林1**

1中国林业科学研究院亚热带林业研究所，浙江富阳 311400；2游县林业局，浙江龙游 324400

出版日期:2011-12-08 发布日期:2011-12-08

Stoichiometry of C, N and P in Phyllostachys iridescens leaves under long-term application of different fertilizers.

GUO Zi-wu1, YU Min-zhi2, ZHENG Lian-xi2, YANG Qing-ping1, LI Ying-chun1, CHEN Shuang-lin1**

1Subtropical Forestry Institute, Chinese Academy of Forestry, Fuyang 311400, Zhejiang, China; 2 Longyou Forestry Bureau of Zhejiang, Longyou 324400, Zhejiang, China

Online:2011-12-08 Published:2011-12-08

摘要/Abstract

摘要： 为了给笋用竹林土壤合理补充养分提供科学依据，以红哺鸡竹（Phyllostachys iridescens）为对象，开展了长期施用不同肥料(生物有机肥、复合肥、菜籽饼肥和不施肥（对照）)竹林2年生立竹叶片C、N、P化学计量学特征的研究。结果表明：叶片C、N、P含量分别为514.26～582.77、18.25～30.20、1.20～1.75 mg·g^-1，施肥竹林均极显著或显著高于对照竹林，以施菜籽饼肥竹林叶片Ｃ含量最高，施生物有机肥竹林叶片N、P含量最高；叶片C∶N、C∶P分别为18.71～35.02、304.41～458.52，总体上施肥竹林较对照竹林极显著降低，施肥竹林N、P养分利用效率显著降低；叶片N∶P为15.28～17.12，相对稳定，施肥竹林与对照竹林无显著差异；叶片N、P含量呈极显著正相关，N含量与N∶P相关性不显著，而P含量与N∶P呈极显著负相关。

关键词: 萼花臂尾轮虫, 品系, 温度食物浓度, 生活史参数

Abstract: A field experiment was conducted to study the leaf C, N and P stoichiometry of 2-year-old Phyllostachys iridescens individuals under long-term application of bio-organic fertilizer, compound fertilizer and rapeseed cake fertilizer, aimed to provide scientific basis for the rational supplement of soil nutrients in bamboo-shoot-use P. iridescens stand. In all treatments, the leaf C, N and P concentrations were 514.26-582.77 mg·g^-1, 18.25-30.20 mg·g^-1, and 1.20-1.75 mg·g^-1,respectively. Fertilization increased the leaf C, N, and P concentrations significantly. The leaf C concentration was the highest under the application of rapeseed cake fertilizer, and the leaf N and P concentrations were the highest under the application of bio-organic fertilizer. The leaf C：N and C：P ratios in all treatments were 18.71-35.02 and 304.41-458.52, respectively, and fertilization decreased these ratios significantly, being most obvious under the application of bio-organic fertilizer. The leaf N：P ratio ranged from 15.28 to 17.12, and no significant difference was observed among all treatments. There was a significant positive correlation between leaf N and P, no correlation between leaf N and N：P, and a significant negative correlation between leaf P and N：P.

Key words: Brachionus calyciflorus, Strain, Temperature, Food concentration, Life history parameter

郭子武,虞敏之,郑连喜,杨清平,李迎春,陈双林. 长期施用不同肥料对红哺鸡竹林叶片碳、氮、磷化学计量特征的影响[J]. 生态学杂志, 2011, 30(12): 2667-2671.

[1]	董丽丽,杨景伟,岑梓龙,黄松. 斜生栅藻密度对新安江萼花臂尾轮虫种群动态的影响 [J]. 生态学杂志, 2012, 31(01): 124-130.
[2]	姚胜;席贻龙;赵兰兰;杨冬青 . 三氯杀螨醇浓度和食物密度对萼花臂尾轮虫种群增长的影响 [J]. 生态学杂志, 2008, 27(04): 578-582 .