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农业经济生态建设的系统动态学模型
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作者 魏钟林 《内蒙古师范大学学报(自然科学汉文版)》 CAS 1994年第3期75-80,共6页
根据经济生态建设的本质是以绿色生产为基础的经济秩序建设及农业经济生态系统的动态特点,提出了农业经济生态建设总体设计、规划、预测与决策的基本思路与其仿真过程的系统动态学一般模型。
关键词 农业经济生态系统 反馈
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第一讲 现代农业和农业生态经济学
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作者 徐力 刘诚 《生态经济》 1985年第1期16-19,共4页
党的十一届三中全会是建国以来党的历史的伟大转折点。几年来,党中央尊重亿万农民的实践经验,倾听亿万农民的呼声,制定了一系列切合我国实际的搞活农村经济的政策措施和经济措施。引导亿万农民进行了广泛的农村改革,收到了显著成效,使... 党的十一届三中全会是建国以来党的历史的伟大转折点。几年来,党中央尊重亿万农民的实践经验,倾听亿万农民的呼声,制定了一系列切合我国实际的搞活农村经济的政策措施和经济措施。引导亿万农民进行了广泛的农村改革,收到了显著成效,使我国的农业从自给、半自给经济向着较大规模商品生产转化,从传统农业向着现代农业转化。 展开更多
关键词 农业生态经济 现代农业生产 农业生态经济系统 农业生产力 传统农业 农业经济系统 政策措施 土壤肥力水平 农业经济生态系统 农业生态平衡
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论建立合理的农业生态经济结构问题
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作者 马传栋 《宁夏社会科学》 1985年第2期51-55,共5页
要实现农业的良性循环,必须依照生态经济学的原理来指导农业生产,建立合理的农业生态经济结构,以使农业生产既取得较好的经济效益,又同时取得较好的生态效益。本文试图对建立合理的农业生态经济结构问题进行探讨。一所谓农业生态经济结... 要实现农业的良性循环,必须依照生态经济学的原理来指导农业生产,建立合理的农业生态经济结构,以使农业生产既取得较好的经济效益,又同时取得较好的生态效益。本文试图对建立合理的农业生态经济结构问题进行探讨。一所谓农业生态经济结构,实质上就是由农业经济系统和农业生态系统复合而成的农业经济生态系统(或称农业生态经济系统,下同)的结构的简称。因此,研究建立合理的农业生态经济结构问题,不仅对指导农业生产有重要意义,它本身也是农业生态经济学研究的重要课题。 展开更多
关键词 农业生态经济系统 生态经济结构 农业生态系统 农业生产结构 农业经济系统 生态农业 生态效益 农业经济结构 太阳能 农业经济生态系统
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农业经济发展战略与生态平衡
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作者 马传栋 《东岳论丛》 1984年第1期45-50,54,共7页
胡耀邦同志在党的十二大报告中强调指出,在实现农业发展目标的过程中,必须"坚决保护各种农业资源、保持生态平衡".这就为我们研究农业经济发展战略,确定今后农业经济发展的长远目标及达到目标的基本途径,提供了一个极为重要... 胡耀邦同志在党的十二大报告中强调指出,在实现农业发展目标的过程中,必须"坚决保护各种农业资源、保持生态平衡".这就为我们研究农业经济发展战略,确定今后农业经济发展的长远目标及达到目标的基本途径,提供了一个极为重要的理论依据.本文试图运用生态经济学的理论,联系山东实际,探讨一下农业经济发展战略和生态平衡之间的辩证关系. 展开更多
关键词 经济发展战略 生态平衡规律 农田生态系统 农业生态系统 农业经济生态系统 农业经济系统 农业发展目标 理论依据 农业经济发展 协调发展
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Emergy Evaluation of Agro-ecosystem of Shiyang River Basin,Northwestern China 被引量:1
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作者 刘丽娟 李小玉 +2 位作者 何兴元 肖笃宁 陈伟 《Journal of Resources and Ecology》 CSCD 2011年第3期232-240,共9页
This paper presents an ecological analysis of agricultural systems in arid region of Northwestern China. Emergy analysis, a method for environmental accounting developed by H.T. Odum in the Eighties, is appropriate fo... This paper presents an ecological analysis of agricultural systems in arid region of Northwestern China. Emergy analysis, a method for environmental accounting developed by H.T. Odum in the Eighties, is appropriate for this task because of its ability to transform different types of inputs to a common form (solar emergy) in order to allow scientific and objective comparisons across different period and regions. Taking Liangzhou and Minqin oases, located in the middle and lower reaches of the Shiyang River basin in Gansu province as a case study, the detailed structure of the agricultural process, input/output and emergy indicators of the systems are examined and compared for the years 1986 and 2000. Both the total emergy input and the total yield increased in the two oases. In Liangzhou Oasis the emergy of livestock production exceeded the traditional crop production, which still is the dominant production in Minqin Oasis. The emergy investment ratio, EIR, although increased in the investigated period, was less than 0.5 in both Liangzhou and Minqin oases, indicating that purchased materials and services were less than half the value of indigenous emergy sources exploited. As a consequence, the emergy yield ratio, EYR, was very high in both Liangzhou and Minqin oases. However, the increasing environmental loading ratio, ELR, and the decreasing environmental sustainability index, ESI, in the two oases illustrate a weakening sustainability of the two agro-ecosystems, and this tendency was more evident in the downstream Minqin Oasis, calling for more attention to the environmental degradation in the region. 展开更多
关键词 emergy analysis emergy indices agricultural eco-economic system Northwestern China
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Synergic Relationship between the Grain for Green Program and the Agricultural Eco-economic System in Ansai County based on the VAR model 被引量:2
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作者 LI Yue WANG Jijun +1 位作者 HU Xiaoning ZHAO Xiaocui 《Journal of Resources and Ecology》 CSCD 2021年第2期292-301,共10页
Understanding the synergic relationship between the Grain for Green Program(GGP)and the agricultural eco-economic system is important for designing an optimized agricultural eco-economic system and developing a highly... Understanding the synergic relationship between the Grain for Green Program(GGP)and the agricultural eco-economic system is important for designing an optimized agricultural eco-economic system and developing a highly efficient structure of an agricultural industry chain and a resource chain.This study used Ansai County time series data from 1995 to 2014,applied vector autoregressive(VAR)models and used tools such as Granger causality,impulse response analysis and variance decomposition,to explore the synergy between the GGP and the agricultural eco-economic system.The results revealed a synergic and reciprocal relationship between the GGP and the agroeconomic system.The contribution of the GGP to the agroecosystem reached 34%,which was significantly higher than either its largest contribution to the agroeconomic system(20.8%)or its peak contribution to the agrosocial system(26.7%).The agroeconomic system had the most prominent influence on the GGP,with a year-round stable contribution of up to 55.3%.These results were consistent with reality.However,the impact of the GGP on the agricultural eco-economic system was weaker than the effect of the agricultural eco-economic system on the GGP.The lag of variable stationarity after the shock was relatively short,indicating that optimal coupling had not formed between the GGP and the agricultural eco-economic system.On the basis of enhancing the ecological functions,we should construct the agricultural industry-resource chain such that it focuses on promoting the effective utilization of resources in the region.In addition,the development of a carbon sink industry can be used to manifest the ecological values of ecological functions. 展开更多
关键词 Grain for Green Program(GGP) AGROECOSYSTEM agroeconomic system agrosocial system collaborative analysis vector autoregressive model Ansai County
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