Issues on Low-carbon Agriculture:From Theory to Practices
-
摘要: 全球气候变化背景下,低碳经济已成为全球热点,被誉为人类第四次技术革命,温室气体排放已经深度触及了农业和粮食安全。低碳农业成为经济社会发展的必然趋势。当前,低碳农业已由理论构想转向了科学实践,其发展途径主要包括:(1)发展新型能源,推广清洁技术;(2)优化耕作制度,提高复种指数;(3)培育优良品种,延长减排链条;(4)改进施肥技术,优化养分管理;(5)实施保护耕作,减少碳素流失;(6)合理开发草业,保护草地资源;(7)发展生物能源,推行过腹还田;(8)整治养殖污染,实施规模养殖。发展低碳农业的保障机制主要涉及:(1)完善相关法律法规;(2)转变农业发展方式;(3)大力依靠科技进步;(4)民众广泛参与。发展低碳农业、实现资源的可持续利用,对增强农业的基础地位、通过农业措施来缓减全球气候变化具有重要的战略意义。Abstract: Low-carbon economy has become a global hot spot,known as the Fourth Technological Revolution under global climate change.At present,greenhouse gas emissions have already imperiled agriculture and food security.Low-carbon agriculture becomes the inevitable trend of economic and social development.Currently,the concept of low-carbon agriculture has turned from scientific theory to practices,including its approach to development:(1)development of new energy resources,promoting clean technologies;(2)optimize the farming systems,raising multiple cropping index;(3)develop and popularize fine varieties to extend the chain of emission reduction;(4)improve the fertilization techniques,optimize the nutrient management;(5)implementation of conservation tillage,reduce carbon loss;(6)rational development of grass industry,protection of grassland resources;(7)development of bio-energy resources,raising the application of cattle manure;(8)farming pollution remediation and extending scale livestock breeding.Safeguard mechanisms of the low-carbon agriculture development include:(1)improve relevant laws and regulations;(2)the adjustment of economic growth mode;(3)rely on scientific and technological progress;(4)increase public participation.Development of low-carbon agriculture is important for sustainable use of resources and enhanced the agriculture foundation,through agricultural measures to mitigate global climate change has important strategic significance.
-
Keywords:
- global change /
- greenhouse gases /
- low-carbon economy /
- low-carbon agriculture /
- development model
-
-
MCKENN Y M S,ROSEN BER G N J.Sensitivity of some potential evapot ranspi ration estimation methods to climate change[J].Agriculture and Forest Meteorology,1993,64:81-110.
KIM BALL B A,MANU EY J R,NAKAYOMAFS,et al. Effects of in creasing atmospheric CO2 on vegetation[J]. Vegetation,1993,103:65-75.
李淑华气候变暖病虫害的影响及防治对策[J].中国农业气象,1993,14(1):41-47. LALR,BRUCE JP.The potential of world crop l and soils to sequester C and mitigate the greenhouse effect[J]. Environmental SciencePolicy,1999,2:177-185.
计量
- 文章访问数: 3110
- HTML全文浏览量: 89
- PDF下载量: 872
下载:
