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窝铺山区生态农业的建设研究 被引量:1
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作者 冷寿慈 李桂林 +5 位作者 杨济淇 吴庆鹉 许慕农 束怀瑞 李永昌 陈延文 《水土保持研究》 CSCD 1994年第2期59-63,73,共6页
文章探讨了发展山区农业经济的问题,如何利用自然资源,利用现代科学技术建设生态农业系统工程,发展农业生产、振兴山区经济。按照“多层利用型”、“综合利用型”及“循环利用型”三种生态农业单元进行建设与研究。运用生态经济学原... 文章探讨了发展山区农业经济的问题,如何利用自然资源,利用现代科学技术建设生态农业系统工程,发展农业生产、振兴山区经济。按照“多层利用型”、“综合利用型”及“循环利用型”三种生态农业单元进行建设与研究。运用生态经济学原理与系统工程方法,以小流域综合治理、保持水土为基础,以发展林果业、城郊型畜牧业为重点,充分利用光、热、水、土等自然资源和现代科学技术,走种、养、加的路子,实现物质能量的多层次循环利用与转换,提高了农民的科学文化素质,获得了良好的经济效益、生态效益和社会效益。 展开更多
关键词 生态农业 分层利用型 综合利用 循环利用
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Influence of land use characteristics and trip attributes on commuting mode choice: a case of Nanjing 被引量:5
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作者 刘志伟 邓卫 季彦婕 《Journal of Southeast University(English Edition)》 EI CAS 2014年第1期107-112,共6页
The effects of socio-demographics, land use characteristics and trip attributes on the commute mode choice are studied with a nested logit (NL) model. Based on the random utility maximum theory, the NL model is form... The effects of socio-demographics, land use characteristics and trip attributes on the commute mode choice are studied with a nested logit (NL) model. Based on the random utility maximum theory, the NL model is formulated. The analysis is carried out in the main area of Nanjing. Direct and cross elasticities are calculated to analyze the effects of travel time and travel cost on the selection of travel mode choice. The results reveal that the non-motorized travel modes are more attractive in the areas with higher housing and employment accessibility and car owners are found to be more likely to commute to work by car. The bus and subway choice probabilities are more sensitive to changes in travel times than to changes in travel costs. In conclusion, a comprehensive public transit system and effective integration of land use and transportation policies help to relieve the traffic congestion levels caused by the increasing urban sprawl. 展开更多
关键词 traffic engineering land use travel mode choice nested logit model elasticity analysis
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