| 农业废弃物分解产生CO2的影响因素研究 |
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| 引用本文： | 杜静,林咸永,章永松.农业废弃物分解产生CO2的影响因素研究[J].应用生态学报,2004,15(3):501-505. |
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| 作者姓名： | 杜静 林咸永 章永松 |
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| 作者单位： | 浙江大学环境与资源学院,杭州,310029 |
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| 基金项目： | 国家重点基础研究发展规划项目 ( 2 0 0 2CB410 80 6)，浙江省自然科学基金资助项目 ( 2 3 0 3 465 ) |
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| 摘 要： | 在正交预备试验得出有机废弃物分解产生CO2适宜条件的基础上，逐一进行单因子试验，以获得利用农业废弃物分解产生的CO2进行棚室栽培CO2施肥的最适发酵条件，结果表明，利用有机废弃物(稻草+猪粪)生物发酵产生CO2的最佳条件分别为：温度50℃、含水量70％、初始pH6．0～7．0．初始C／N比因发酵目的不同有较大变化，以堆肥为目的时为30／1，而以产生CO2为目的时，则以40／1为宜，在4个因素中，初始C／N比和含水量对CO2释放的影响较大，其次是温度，初始pH的影响最小。
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| 关 键 词： | 有机废弃物 生物降解 CO2释放 C/N比 温度 含水量 pH |
| 文章编号： | 1001-9332(2004)03-0501-05 |
| 修稿时间： | 2002年12月10 |
Affecting factors of CO2 evolution from biodegradation of agricultural organic wastes |
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| DU Jing,LIN Xianyong,ZHANG Yongsong.Affecting factors of CO2 evolution from biodegradation of agricultural organic wastes[J].Chinese Journal of Applied Ecology,2004,15(3):501-505. |
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| Authors: | DU Jing LIN Xianyong ZHANG Yongsong |
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| Institution: | College of Environmental and Resources Sciences, Zhejiang University, Hangzhou 310029, China. doudou_511@163.com |
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| Abstract: | On the basis of a preliminary orthogonal design experiment, from which, the primary parameters suitable for the CO2 evolution from bio-degradation of agricultural organic wastes had been obtained, four single factor experiments were installed in greenhouse to seek the optimal parameters for the CO2 evolution. The results showed that the optimal parameters for the CO2 evolution from the bio-degradation of rice straw-pig manure mixture were 50 degrees C, 70% water content and initial pH 6.0-7.0. For fermentation, the optimal initial C/N ratio of substrate for cumulative CO2 evolution was 40/1, but 30/1 was better for compost. The effect of the four parameters on CO2 evolution was in the order of C/N ratio and water content > temperature > pH. |
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| Keywords: | Organic wastes Bio-degradation CO 2 evolution C/N ratio Temperature Water content pH |
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