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| DOI | 10.1126/science.1097396 |
| Soil carbon sequestration impacts on global climate change and food security | |
| Lal R. | |
| 发表日期 | 2004 |
| ISSN | 0036-8075 |
| 起始页码 | 1623 |
| 结束页码 | 1627 |
| 卷号 | 304期号:5677 |
| 英文摘要 | The carbon sink capacity of the world's agricultural and degraded soils is 50 to 66% of the historic carbon loss of 42 to 78 gigatons of carbon. The rate of soil organic carbon sequestration with adoption of recommended technologies depends on soil texture and structure, rainfall, temperature, farming system, and soil management. Strategies to increase the soil carbon pool include soil restoration and woodland regeneration, no-till farming, cover crops, nutrient management, manuring and sludge application, improved grazing, water conservation and harvesting, efficient irrigation, agroforestry practices, and growing energy crops on spare lands. An increase of 1 ton of soil carbon pool of degraded cropland soils may increase crop yield by 20 to 40 kilograms per hectare (kg/ha) for wheat, 10 to 20 kg/ha for maize, and 0.5 to 1 kg/ha for cowpeas. As well as enhancing food security, carbon sequestration has the potential to offset fossil-fuel emissions by 0.4 to 1.2 gigatons of carbon per year, or 5 to 15% of the global fossil-fuel emissions. |
| 英文关键词 | Agriculture; Biodegradation; Carbon; Climate change; Forestry; Rain; Soil structure; Soil texture; Soils; carbon; herbicide; agriculture; biomass; climate; cover crop; food; forestry; global climate; land use; no tillage; nutrient; priority journal; review; soil; soil quality; Agriculture; Atmosphere; Biomass; Carbon; Carbon Dioxide; Climate; Crops, Agricultural; Ecosystem; Food; Food Supply; Humans; Malnutrition; Poverty; Soil; Triticum aestivum; Zea mays |
| 语种 | 英语 |
| 来源期刊 | Science
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/244435 |
| 作者单位 | Carbon Mgmt. and Sequestration Ctr., Ohio State University, Columbus, OH 43210, United States |
| 推荐引用方式 GB/T 7714 | Lal R.. Soil carbon sequestration impacts on global climate change and food security[J],2004,304(5677). |
| APA | Lal R..(2004).Soil carbon sequestration impacts on global climate change and food security.Science,304(5677). |
| MLA | Lal R.."Soil carbon sequestration impacts on global climate change and food security".Science 304.5677(2004). |
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