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中华人民共和国农业行业标准 无公害食品 茶叶生产技术规程
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《广东茶业》 2002年第2期20-25,共6页
本标准由中华人民共和国农业部提出。本标准起草单位:中国农业科学院茶叶研究所。本标准主要起草人:阮建云、肖强、韩文炎、许允文、唐美君。
关键词 中国人民解放军农业行业标准 茶叶 生产 栽培技术 病害防治
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酶解法测定饲料中维生素A、E的含量 被引量:3
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作者 郭芙蓉 杜红鸽 《河南畜牧兽医》 2006年第1期8-8,共1页
关键词 含量测定 维生素A 酶解法 饲料 中国农业标准 营养元素 维生素E 畜禽生长 同时测定 测定结果
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农业劳动力转移的定量指标与标准数据计算方法 被引量:12
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作者 胡景北 《经济评论》 CSSCI 北大核心 2015年第2期41-51,共11页
本文研究农业劳动力转移数据的标准化问题。数据标准化的前提是设计适当的定量指标。农业劳动力转移数据所需要的指标首先是农业劳动占总劳动比重即农劳比;农劳比的差分为农劳比下降速度;后者的差分又是农劳比下降加速度。这三个指标都... 本文研究农业劳动力转移数据的标准化问题。数据标准化的前提是设计适当的定量指标。农业劳动力转移数据所需要的指标首先是农业劳动占总劳动比重即农劳比;农劳比的差分为农劳比下降速度;后者的差分又是农劳比下降加速度。这三个指标都是统计学的可观察量。但真实的农业劳动力转移量是不可观察量。替代性的另一个农业劳动力转移量建立在农业劳动力和社会总劳动力两者自然增长率相等的假设上。利用总劳动增长率资料,该转移量亦成为可观察量。这一转移量和总劳动力之比是农业劳动力转移率。由此定义的农业劳动力转移率恒等同于农劳比下降速度,所以转移率也变成可观察量。利用这些指标和中国的统计资料,本文提出1953-2012年中国农业劳动力转移的长期年度数据。 展开更多
关键词 农业劳动力转移率 农业劳动比重下降速度 农业劳动比重下降加速度 中国农业劳动力转移标准数据
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SPC's Business Information
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《China Standardization》 2010年第4期61-64,F0003,共5页
Key Publications in China's 11 th Five-year Plan Chinese Agriculture Standards CompilationThe Chinese Agriculture Standards Compilation is a 19-volume series of books (with 23 sections) edited by the First Editio... Key Publications in China's 11 th Five-year Plan Chinese Agriculture Standards CompilationThe Chinese Agriculture Standards Compilation is a 19-volume series of books (with 23 sections) edited by the First Edition Office of Standards Press of China. The books are a complete collection of the national standards of China as well as some professional agriculture standards that were valid as of the end of October 2009. 展开更多
关键词 商业信息 中国农业标准 SPC 中国国家标准 出版社 办公室 出版物
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《中国畜牧业》 2012年第2期98-98,共1页
为了加大农业标准的宣贯力度,扩大标准汇编本的影响,满足和方便读者的需要,我们在总结已出版的《中国农业标准经典收藏系列·最新中国农业行业标准》前六辑经验的基础上,
关键词 中国农业标准 阅读 农业行业标准 中国
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Calculation of Ecological Compensation Standards for the Kuancheng Traditional Chestnut Cultivation System 被引量:3
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作者 LIU Moucheng BAI Yunxiao +1 位作者 YANG Lun WANG Bojie 《Journal of Resources and Ecology》 CSCD 2021年第4期471-479,共9页
Kuancheng Traditional Chestnut Cultivation System is located in the Beijing-Tianjin-Hebei Water Containment Function Area.The Traditional Chestnut Cultivation System is characterized by agroforestry compound,and some ... Kuancheng Traditional Chestnut Cultivation System is located in the Beijing-Tianjin-Hebei Water Containment Function Area.The Traditional Chestnut Cultivation System is characterized by agroforestry compound,and some studies have shown that the compound planting of chestnut has better ecological benefits than the single chestnut planting mode.However,most of the local farmers in Kuancheng are mainly engaged in single chestnut cultivation.Through ecological compensation,farmers are being encouraged to change their chestnut planting mode,which can achieve the purpose of inheriting China’s important agricultural heritage and improving the ecological benefits.This paper introduces preference coefficients to correct for opportunity costs,and through interviews and questionnaires,we obtained the input and output of the single chestnut cultivation,chestnut-maitake,chestnut-millet,and chestnut-chicken and the income of laborers working outside the home in the Kuancheng area.Through analysis and calculation,we obtained the following results:(1)Although the net income of the three chestnut composite modes is higher,their economic input is higher than that of a single chestnut planting mode,and the return on unit investment is lower.(2)The average income of young and middle-aged workers who work outside is higher than that of the local farming industry,so the local chestnut agroforestry plantation has a higher opportunity cost.(3)The final calculation shows that the chestnut-chicken agroforestry operation mode needs no compensation,the chestnut-maitake plantation mode is compensated at least 1608.5 USD ha^(-1) yr^(-1),and the minimum compensation for the chestnut-millet plantation mode is 198.3 USD ha^(-1) yr^(-1),which can guarantee that farmers receive the full value of their creations.Ultimately,farmers are incentivized to revive the traditional agroforestry production mode to achieve both economic and ecological benefits while inheriting agricultural heritage. 展开更多
关键词 ecological compensation standards China Nationally Important Agricultural Heritage Systems(China-NIAHS) Cost-Benefit method opportunity cost Kuancheng Traditional Chestnut Cultivation System
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