施肥对毛竹林土壤水溶性有机碳氮与温室气体排放的影响

doi:10.11707/j.1001-7488.20101227

林业科学 ›› 2010, Vol. 46 ›› Issue (12): 165-170.doi: 10.11707/j.1001-7488.20101227

施肥对毛竹林土壤水溶性有机碳氮与温室气体排放的影响

李永夫^1,2, 姜培坤^1,2, 刘娟^1,2, 王旭东^1,2, 吴家森², 叶耿平², 周国模^1,2

1. 浙江农林大学浙江省森林生态系统碳循环与固碳减排重点实验室临安 311300;2. 浙江农林大学环境科技学院临安 311300

收稿日期:2010-04-18 修回日期:2010-10-08 出版日期:2010-12-25 发布日期:2010-12-25
通讯作者: 周国模

Effect of Fertilization on Water-Soluble Organic C, N, and Emission of Greenhouse Gases in the Soil of Phyllostachys edulis Stands

Li Yongfu^1,2, Jiang Peikun^1,2, Liu Juan^1,2, Wang Xudong^1,2, Wu Jiasen², Ye Gengping², Zhou Guomo^1,2

1. Zhejiang Provincial Key Laboratory of Carbon Cycling in Forest Ecosystems and Carbon Sequestration, Zhejiang A & F University Lin’an 311300;2. School of Environmental Science and Technology, Zhejiang A & F University Lin’an 311300

Received:2010-04-18 Revised:2010-10-08 Online:2010-12-25 Published:2010-12-25

摘要/Abstract

关键词: 毛竹, 施肥, 水溶性有机碳, 水溶性有机氮, 温室气体

Abstract:

Forest management measures have a significant impact on carbon and nitrogen cycling in the forest ecosystems. In order to understand any effect of different fertilization treatments on water-soluble organic carbon, nitrogen (WSOC, WSON) contents, and emission of greenhouse gases, a fertilization experiment was conducted in the typical Phyllostachys edulis stands located in Lin'an, Zhejiang Province. Six treatments were applied in this study: 1) no fertilization; 2) ordinary fertilization amount; 3) 2 times of ordinary fertilization amount; 4) half of ordinary fertilization amount; 5) only nitrogen fertilizer; and 6) P fertilizer and potash. WSOC and WSON contents, and emission rates of greenhouse gases (CO₂ and N₂O) were determined. The results showed that CO₂ and N₂O emission rates significantly increased with increase in the amount of fertilization (P<0.05). In comparison with the control treatment, application of urea significantly increased emissions of CO₂ and N₂O (P<0.05). The emission of CO₂ was not significantly changed after 1 month of calcium superphosphate and potassium chloride application, while it significantly increased (P<0.05) after 6 months. Large amount of fertilizer (treatment 2 and treatment 3) significantly increased WSOC content (P<0.05); and relatively small amount of fertilizer (treatment 4) and fertilization of super-phosphate and potassium chloride (treatment 6) had no significant effect on soil WSOC content. Fertilization treatment (except for treatment 6) significantly increased WSON content (P<0.05). Correlation analysis showed that CO₂ and N₂O emission rates from the soil of P. edulis stands were significantly correlated to WSOC and WSON contents, respectively, indicating that increase in contents of WSOC and WSON caused by fertilization was probably the reason for the increase in emission of greenhouse gases.

Key words: Phyllostachys edulis, fertilization, water-soluble organic carbon (WSOC), water-soluble organic nitrogen (WSON), greenhouse gas

中图分类号:

S718.55

李永夫;姜培坤;刘娟;王旭东;吴家森;叶耿平;周国模;. 施肥对毛竹林土壤水溶性有机碳氮与温室气体排放的影响[J]. 林业科学, 2010, 46(12): 165-170.

Li Yongfu;Jiang Peikun;Liu Juan;Wang Xudong;Wu Jiasen;Ye Gengping;Zhou Guomo;. Effect of Fertilization on Water-Soluble Organic C, N, and Emission of Greenhouse Gases in the Soil of Phyllostachys edulis Stands[J]. Scientia Silvae Sinicae, 2010, 46(12): 165-170.

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施肥对毛竹林土壤水溶性有机碳氮与温室气体排放的影响

Effect of Fertilization on Water-Soluble Organic C, N, and Emission of Greenhouse Gases in the Soil of Phyllostachys edulis Stands

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