| 四川兴文县农田生态系统碳源/汇现状特征研究 |
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| 引用本文： | 陈勇,税伟,李首成,康银红.四川兴文县农田生态系统碳源/汇现状特征研究[J].西南农业学报,2012,25(2):584-588. |
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| 作者姓名： | 陈勇 税伟 李首成 康银红 |
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| 作者单位： | 1. 四川农业大学农学院,四川温江,611130
2. 四川农业大学信息与工程技术学院,四川雅安,625014 |
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| 基金项目： | 四川省兴文世界地质公园科技项目，四川省教育厅项目 |
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| 摘 要： | 采用2003～2010年四川省兴文县农业投入和产出相关农业数据,对农田生态系统的碳源/汇现状特征进行了研究。结果表明:①2003～2010年兴文县农田生态系统碳吸收量呈持续增加趋势,2010年碳吸收量达183 487.22 t,比2003年提高了8.76%。②2003～2010年兴文县农田生态系统排放量总体呈增加的趋势,从2003年的10443.06 t增加到2010年的11955.70 t,化肥施用是导致碳损失的主要途径。③兴文县农田生态系统的碳吸收大于碳排放,具有较强的碳汇能力,但碳排放的增长大于碳吸收的增长,对农田碳汇培育形式压力。
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| 关 键 词： | 兴文县 农田生态系统 碳汇 现状特征 |
Study on Current Characteristics of Carbon Sink/Source in Farm and Ecosystem in Xingwen County |
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| CHEN Yong
,
SHUI Wei
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LI Shou-cheng
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KANG Yin-hong.Study on Current Characteristics of Carbon Sink/Source in Farm and Ecosystem in Xingwen County[J].Southwest China Journal of Agricultural Sciences,2012,25(2):584-588. |
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| Authors: | CHEN Yong SHUI Wei LI Shou-cheng KANG Yin-hong |
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| Institution: | 1.College of Agronomy,Sichuan Agricultural University,Sichuan Wenjiang 611130,China;2. College of Information and Engineering Technology,Sichuan Ya’an 625014,China) |
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| Abstract: | Based on the statistic data of agricultural input and output in Xingwen county from 2003 to 2010,and the current characteristics of carbon sink/source in farmland ecosystem were analyzed.The result showed that(ⅰ) The amounts of carbon absorption in farmland ecosystem in Xingwen kept stable increase since 2003.The amounts of carbon absorption were 183487.22 t in 2010,increasing by 8.76 % than that in 2003.(ⅱ) The amounts of carbon emission in farmland ecosystem in Xingwen totally kept the increasing trend,which increased from 10443.06 tons in 2003 to 11955.70 tons in 2010,and the inputs of fertilizer were the main way of carbon loss.(ⅲ) as carbon absorption was higher than carbon emission,farmland ecosystem had strong capability of carbon sink,but there still existed pressure to increasing carbon sink in farmland ecosystem in Xingwen because the growth rate of carbon emission was higher than that of carbon absorption. |
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| Keywords: | Xingwen county Farmland ecosystem Carbon sink Current situation |
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