Effects of different fertilizer levels on N2O flux from protected vegetable land

被引：0
|
作者：
Zhang Z. [1 ,2 ]
Li Y. [2 ]
Hua L. [1 ]
Wan Y. [2 ]
Jiang N. [1 ,2 ]
机构：
[1] College of Resource Environment and Tourism, Capital Normal University
[2] Institute of Environment and Sustainable Develop in Agriculture, Chinese Academy of Agricultural Sciences
来源：
Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering | 2010年 / 26卷 / 05期
关键词：
Emission control; Emission factor; Fertilizer; Greenhouse gases; Protected vegetable land;
D O I：
10.3969/j.issn.1002-6819.2010.05.046
中图分类号：
学科分类号：
摘要：
To identify the characteristics of N2O emission from protected vegetable land in Beijing, and to seek a way that decreases N2O emission and increase or keep cucumber yield, with the method of static chamber-gas chromatograph technique, N2O emission was monitored in cucumber field from protected vegetable land in Beijing. The effects of different amounts of fertilization on N2O emission, vegetable yields and economic benefit were analyzed. The results showed that significant temporal variability of N2O flux from all treatments was observed in different growing stages of cucumber. Larger emission happened at the initial stage of the experiment. N2O emission decreased and remained stable with time. At the late stage, a peak emission happened and continued for a long time because of larger amount of top dressing. The order of total N2O emission was: T4 (conventional fertilization + chicken dug, in short "CF+CD") > T3 (3/4CF+CD) > T1 (1/4CF+CD) > T2 (1/2CF+CD) > Tn (CD) > T0 (Control treatment), and there existed significant difference between treatments. By considering fertilizer rates, N2O emission and cucumber yield, it was concluded that the fertilization rate of T3 (3/4CF+CD) was very reasonable, which could provide basis for applying fertilizer rationally, reducing farm production costs, estimating greenhouse gas emissions from cropland and compiling national greenhouse gases emission inventory.
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页码：269 / 275
页数：6
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共 40 条
  • [1] The State of Greenhouse Gases in the Atmosphere Using Global Observations up to December 2004, (2006)
  • [2] Climate Change, Summary for Policymakers: The Science of Climate Change, pp. 21-24, (1995)
  • [3] Hopkins A., Del Prado A., Implications of climate change for grassland in Europe: impacts, adaptations and mitigation options: a review, Grass and Forage Science, 62, 2, pp. 118-126, (2007)
  • [4] Climate Change, Radiative Forcing of Climate Change: The Scientific Basis (IPCC Third Assessment Report), (2001)
  • [5] Kroeze C., Mosier A., Bouwman A.F., Closing the global N<sub>2</sub>O budget: a retrospective analysis 1500-1994, Global Biogeochemical Cycles, 13, 1, pp. 1-8, (1999)
  • [6] Liu Q., Zhang Y., Problems and countermeasures of solar plastic greenhouse in the north, Northern Horticulture, 1, pp. 74-75, (2006)
  • [7] Guo W., Liu S., Li D., Et al., Mechanism of soil salinization in protected cultivation, Soils, 36, 1, pp. 25-29, (2004)
  • [8] Palmer I., Pfab H., Ruser R., Et al., Nitrogen loss from high N-input vegetable fields: a)Direct N<sub>2</sub>O emissions b)Spatiotemporal variability of N species (N<sub>2</sub>O, NH<sub>4</sub><sup>+</sup>, NO<sub>3</sub><sup>-</sup>) in soils, Geophysical Research Abstracts, 11, pp. 6278-6283, (2009)
  • [9] Zhang G., Chen M., Min H., Research of N<sub>2</sub>O flux from greenhouse and nitrifier and denitrifier numbers, Plant Nutrition and Fertilizer Science, 8, 2, pp. 239-243, (2002)
  • [10] Rosenkranz P., Bruggemann N., Papen H., Et al., N<sub>2</sub>O, NO and CH<sub>4</sub> exchange, microbial N turnover over a Mediterranean pine forest soil, Biogeosciences, 3, pp. 121-133, (2006)
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