摘要
选择合理的种植制度,可使北京市种植业既能克服水资源限制,又能更好地发挥农业抑制扬尘的生态服务功能,兼顾农民兼业增收的要求,从而满足北京市种植业发展的需要。本文采用文献研究、试验和调研相结合的方法,对北京市种植制度调整的必要性和不同种植制度的效益进行探讨。对春玉米一熟制和冬小麦-夏玉米两熟制多种效益的比较表明,春玉米一熟制虽比冬小麦-夏玉米两熟制经济效益略低,但具有较好的环境效益、较低的水资源消耗,且有利于农民兼业增收,是更符合北京市都市农业发展要求的种植制度。
A rational cropping system can overcome restriction from limited water resource in Beijing prefecture, control sand- storm, and meet farmer requirements to switch to revenue-based livelihood. Thus the selection of rational cropping systems is critical to and inline with the above requirement for urban agricultural development. In conjunction with literature reviews, experiments and social surveys, necessary analysis of the adjustment of cropping systems, benefits of single-harvest spring-maize and double-harvest winter-wheat and summer-maize are highlighted. The results show that despite slightly lower economic benefit over double-harvest winter-wheat and summer-maize, single-harvest spring-maize has better environmental benefit, lower water con- sumption, and encourages farmer engagement in part-time jobs. It is, therefore, a favorable cropping system that reflects the reality of developmental challenges of urban agriculture in Beijing prefecture.
出处
《中国生态农业学报》
CAS
CSCD
2008年第2期469-474,共6页
Chinese Journal of Eco-Agriculture
基金
国家自然科学基金项目(70673104)
北京市农村工作委员会软科学项目“北京市农业产业布局”资助
关键词
冬小麦-夏玉米两熟制
春玉米-熟制
种植制度
效益分析
都市农业
北京
Double-harvest winter-wheat and summer-maize, Single-harvest spring-maize, Cropping system, Benefit analysis,Urban agriculture, Beijing
