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整治“三滥”是从源头遏制生态脆弱地区土地荒漠化的必由之路——以科尔沁沙地为例 被引量:7
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作者 曾德慧 姜凤岐 《生态学杂志》 CAS CSCD 北大核心 2006年第12期1540-1543,共4页
针对中国土地荒漠化的现状和关键问题,以科尔沁沙地为例,阐述了荒漠化的发展历程、主要动因与未来趋势。科尔沁沙地正处在现代土地荒漠化过程之中,导致快速发展的荒漠化动因主要是源于人们不合理的土地利用方式,即滥垦、滥牧和滥伐(简... 针对中国土地荒漠化的现状和关键问题,以科尔沁沙地为例,阐述了荒漠化的发展历程、主要动因与未来趋势。科尔沁沙地正处在现代土地荒漠化过程之中,导致快速发展的荒漠化动因主要是源于人们不合理的土地利用方式,即滥垦、滥牧和滥伐(简称“三滥”);而在各种利农政策下,滥垦可能会重新滋生和蔓延,是非常值得借鉴的历史教训。本文应用复合生态系统的观点剖析了“三滥”与荒漠化的关系,并据此提出从源头减轻土地压力的6项对策。 展开更多
关键词 科尔沁沙地 荒漠化 三滥 复合生态系统 利农政策 防控对策
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返乡农民工创业的对策分析 被引量:1
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作者 李进一 吴一芝 《安徽农业科学》 CAS 2012年第15期8756-8757,共2页
分析了农民工创业的现状与特点,深入探讨了其创业的原因,对农民工创业中存在的问题进行了研究,并提出了相应的政策,即政府要为返乡农民工构建积极有效的创业扶持政策,而返乡农民工要加强自身素质的提升。
关键词 三农 创业 权益 利农政策
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Multi-objective Programming and Social Welfare Analysis of Rural–urban Land Conversion Decision-making
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作者 Song Min Zhang Anlu 《Chinese Journal of Population,Resources and Environment》 北大核心 2008年第4期65-71,共7页
Rural-urban land conversion is an inevitable phenomenon in urbanization arid industrialization. And the decision-making issue about this conversion is multi-objective because the social decision maker (the whole of c... Rural-urban land conversion is an inevitable phenomenon in urbanization arid industrialization. And the decision-making issue about this conversion is multi-objective because the social decision maker (the whole of central government and local authority) has to integrate the requirements of different interest groups (rural collective economic organizations, peasants, urban land users and the ones affected indirectly) and harmonize the sub-objects (economic, social and ecological outcomes) of this land allocation process. This paper established a multi-objective programming model for rural-urban land conversion decision-making and made some social welfare analysis correspondingly. Result shows that the general object of rural-urban land conversion decision-making is to reach the optimal level of social welfare in a certain state of resources allocation, while the preference of social decision makers and the value judgment of interest groups are two crucial factors which determine the realization of the rural-urban land conversion decision-making objects. 展开更多
关键词 ntral-urban land conversion DECISION-MAKING multiobjective programming social welfare
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