| 潍坊市农田生态系统碳源(碳汇)及其碳足迹变化 |
| |
| 引用本文： | 杨皓然,宋戈,杨光,张雪,周春凤.潍坊市农田生态系统碳源(碳汇)及其碳足迹变化[J].湖南农业大学学报(自然科学版),2015,41(1):82-88. |
| |
| 作者姓名： | 杨皓然 宋戈 杨光 张雪 周春凤 |
| |
| 作者单位： | 1. 东北农业大学资源与环境学院,黑龙江哈尔滨150030
2. 东北农业大学资源与环境学院,黑龙江哈尔滨150030;东北大学土地管理研究所,辽宁沈阳110819 |
| |
| 基金项目： | 国家自然科学基金项目(41071346);教育部博士学科点基金项目(20112325110007) |
| |
| 摘 要： | 以山东省潍坊市为研究区,以种植面积、农作物产量及农业投入等相关数据为基础,定量测算2003—2012年潍坊市农田生态系统的碳源(碳汇),分析期间碳足迹的变化。结果表明:1)2003—2012年,潍坊市农田生态系统碳吸收总量小于碳排放总量,二者的比例为1∶7.4,碳排放强度增长率从0.055%减少到0.048%,碳吸收强度增长率从1.18%增加到1.98%。10年间农田生态系统碳吸收量和碳排放量分别增长了10.69%和7.02%,碳吸收增长率高于碳排放增长率,农田系统具有较强的碳汇功能。2)蔬菜是主要的碳汇,占比为73.31%,6种碳排放途径中,农田灌溉是主要的碳源,占比为87.32%。3)农田生态系统碳足迹从2003年的38.990万hm2减少到2012年38.769万hm2,碳足迹平均占生态生产性土地面积的1.456%,比例较低。10年间碳足迹强度均值为0.14 hm2/万元,2003—2012年潍坊市农田生态系统每增加1万元的产值可以制造0.14 hm2的碳足迹。
|
| 关 键 词： | 农田生态系统 碳源 碳汇 碳足迹 潍坊市 |
Variation of carbon source (sink) and carbon footprint at farmland ecosystem in Weifang |
| |
| Yang Haoran,Song Ge,Yang Guang,Zhang Xue,Zhou Chunfeng.Variation of carbon source (sink) and carbon footprint at farmland ecosystem in Weifang[J].Journal of Hunan Agricultural University,2015,41(1):82-88. |
| |
| Authors: | Yang Haoran Song Ge Yang Guang Zhang Xue Zhou Chunfeng |
| |
| Institution: | Yang Haoran;Song Ge;Yang Guang;Zhang Xue;Zhou Chunfeng;College of Resources and Environment, Northeast Agricultural University;Institute of Land Management, Northeastern University; |
| |
| Abstract: | By taken Weifang city as a research area, the variation of carbon source/sink and carbon footprint from 2003 to 2012 at parts of farmland ecosystem in Weifang were quantitatively measured on the basis of terrestrial data including planting area, crop yield and agricultural input. The results showed that 1) Total carbon absorption in the farmland ecosystem was worse than that of emission during the year from 2003 to 2012, with a ratio of 1:7.4, and the growth rate of carbon emission intensity reduced from 0.055% to 0.048%, the growth rate of carbon absorption strength, while, increased from 1.18% to 1.98%, which indicated that the farmland system had stronger function of carbon sinks; carbon absorption and carbon emission in the farmland ecosystem increased by 10.69% and 7.02% respectively during the 10 years, and the absorption rate was higher than that of emission; 2) Vegetable, as the main carbon sink, was accounted for more than 73.31% in the total sinks, while, irrigation, as the main carbon source amongst the six kinds of carbon emission approaches, was accounted for 87.32%; 3) Carbon footprint in the farmland ecosystem reduced from 389 900 hectare in 2003 to 387 690 hectare in 2012, with a lower proportion of 1.456% amongst the ecological productive land areas. The average value of ICF was 0.14 hectare per 10 000 RMB, which meant that 0.14 hectare carbon footprint could be produced on the basis of 10 000 RMB output value in the farmland ecosystem. |
| |
| Keywords: | farmland ecosystem carbon source carbon sink carbon footprint Weifang |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《湖南农业大学学报(自然科学版)》浏览原始摘要信息 |
| 点击此处可从《湖南农业大学学报(自然科学版)》下载免费的PDF全文 |
|
