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劳动力务农机会成本上升对丘陵山区农地弃耕的影响——以重庆市酉阳县为例 被引量:26
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作者 花晓波 阎建忠 袁小燕 《西南大学学报(自然科学版)》 CAS CSCD 北大核心 2014年第1期111-119,共9页
从劳动力务农机会成本及生计资产出发,为解释丘陵山区农地弃耕的影响因素进行探索.本文以地处重庆渝东南翼的酉阳县为例,利用参与式农户评估法(PRA)对6个典型村进行农户调查,得到246份有效问卷,利用经济学中的机会成本概念及农户生计理... 从劳动力务农机会成本及生计资产出发,为解释丘陵山区农地弃耕的影响因素进行探索.本文以地处重庆渝东南翼的酉阳县为例,利用参与式农户评估法(PRA)对6个典型村进行农户调查,得到246份有效问卷,利用经济学中的机会成本概念及农户生计理论进行综合研究;利用二分类Logistic回归模型解释该地与农地弃耕的影响因素.研究结果:(1)酉阳县存在大量弃耕现象,调查结果显示,撂荒地面积占耕地总面积的27.72%;转出耕地面积占耕地总面积的10.09%;(2)在县域尺度来看,劳动力务农机会成本呈上升趋势,农户家庭务农机会成本中短暂的务工、打零工等形式的工资性收入较高;务农机会成本上升程度也存在地域差异,其大小顺序为:槽谷平坝区,低山区和中山区;(3)务农机会成本的变化是丘陵山区尤其是中低山地区农户弃耕的重要原因;(4)农户的生计资产中,自然资产、物质资产和社会资产对农户弃耕行为具有一定影响.农户务农机会成本及生计资产能够较好地解释丘陵山区农地弃耕的影响因素,为深入研究丘陵山区农地边际化提供借鉴依据. 展开更多
关键词 劳动力务农机会成本 生计资产 丘陵山区 农地弃耕 酉阳县
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刘易斯转折点与农地弃耕撂荒现象的探讨 被引量:1
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作者 张露 《市场论坛》 2011年第4期25-26,共2页
我国人口众多,可利用土地资源少,耕地状况和粮食产量面临严峻的挑战。随着城镇化速度加快,农业比较收益降低,越来越多的农村剩余劳动力选择进城务工,造成大量农地弃耕撂荒。在农业生产率没有大幅度提高的背景下,大量的农地无人耕种,极... 我国人口众多,可利用土地资源少,耕地状况和粮食产量面临严峻的挑战。随着城镇化速度加快,农业比较收益降低,越来越多的农村剩余劳动力选择进城务工,造成大量农地弃耕撂荒。在农业生产率没有大幅度提高的背景下,大量的农地无人耕种,极大的威胁了我国粮食安全。 展开更多
关键词 刘易斯转折点 劳动力转移 农地弃耕 农业生产
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农地弃耕抛荒的生态经济学分析及其对策 被引量:15
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作者 田千禧 徐植兰 《农业现代化研究》 CSCD 北大核心 2004年第2期127-130,共4页
本文针对近年来农地弃耕抛荒的现象和现状,总结了农地弃耕抛荒的几个特点,分析了产生弃耕抛荒的主要原因和生态经济代价,并对遏制农地弃耕抛荒,进一步促进农业及农村经济发展,提出了相应的对策。
关键词 中国 农地弃耕抛荒现象 生态经济学 农业比较效益 农业社会化服务体系 农业基础设施 农田生态环境 耕地产权制度
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Customary Management System of Irrigation Ponds in Japana Case Study in a Globally Important Agricultural Heritage Systems(GIAHS) Site of Noto Island,Ishikawa Prefecture 被引量:6
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作者 邱振勉 陈碧霞 中村浩二 《Journal of Resources and Ecology》 CSCD 2016年第3期205-210,共6页
Recent research has showed increasing interest at the vital role of irrigation ponds that plays at biodiversity conservation,and provides ecological functions at a wide range.However,many irrigation ponds were abolish... Recent research has showed increasing interest at the vital role of irrigation ponds that plays at biodiversity conservation,and provides ecological functions at a wide range.However,many irrigation ponds were abolished due to the economic and societal transformation in the rural.In particular,small-scale ponds were abolished and rebuilt to other public uses based on the consensus building process among the community.At the same time,civil organizations also launched initiatives to conserve irrigation ponds for its ecological significance or landscape scenery.However,study pertinent to the small scale ponds in the rural setting is largely neglected.This research aims at revealing the current situation of the utilization and management of small irrigation ponds using a case study of Noto Island in Ishikawa Prefecture.It was found that irrigation ponds are still under the traditional co-management of rural community.The most important finding in this study is that the traditional management of pond water use largely contributes to mitigate the harvest loss from natural disasters such as drought in the face of extreme climate.However,irrigation ponds are facing the threat of degradation due to the sharp decrease of farm population and the existing large number of part time farmers.Therefore,the small scale irrigation ponds and pertinent management and water use allotment should be revalued for its functions at a wide range from the biological and ecological functions and human knowledge system to mitigate disaster threats. 展开更多
关键词 traditional knowledge of farm management climate change cohesion of rural community farm abandonment multi-functions of traditional farming
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