8253d046-4c53-4c79-8f20-b306185c0b2d Northwest (Linze, Zhangye) Corn Production ; Planting 西北（张掖林泽）玉米生产 ; 种植 Unit processes Materials production Agricultural production means The article is based on research data collected from farmers and utilizes the theory of agricultural carbon footprint and life cycle assessment to quantitatively study the size and composition of the carbon footprint of the rice-wheat rotation system in the downstream area of the Yangtze River. Additionally, it further analyzes the factors that influence the carbon footprint. 文章基于农户调研数据,运用农业碳足迹理论及生命周期法定量研究长江下游地区稻麦轮作系统碳足迹大小及组成,并进一步分析碳足迹影响因素 1 t 25 2012 2012 Linze County 临泽县 LCA method is used to evaluate the agricultural system of seed corn production, which takes the whole process of product treatment from input to final output as the research object to conduct quantitative analysis and comparison, so as to evaluate the environmental impact of seed corn production [13]. In this paper, the mass of seed corn 1 t is used as the functional unit. The boundary of the system starts from the production of fertilizer and electricity, and ends from the output of agricultural products and pollutants in the crop planting process. In other words, there are two production systems, namely the agricultural material production system and the crop production system 用 LCA 方法评估制种玉米农业系统，是把产品 从投入到最终产出的处理的整个过程作为研究对象， 进行量化分析和比较，以评价制种玉米环境影响[13]。本 文使用制种玉米质量 1 t 作为功能单元，系统边界从化 肥和电力的生产开始，终止边界为作物种植过程输出 农产品和污染物，即存在两个生产系统，分别是农资生 产系统和作物生产系统 The data represents the process of corn production in Linze, Zhangye, Northwest China, which is intended for studying the agricultural carbon footprint and life cycle assessment of crop production systems. The data can be applied to evaluate environmental impacts associated with plant agricultural practices, particularly focusing on corn as a staple crop. The information is valuable for monitoring and managing agricultural practices to reduce carbon footprints and for devising sustainable agriculture policies. 本数据描述了中国西北张掖临泽地区的玉米生产过程，主要用于研究农作物生产系统的农业碳足迹和生命周期评估。这些数据可以应用于评价与种植性农业实践相关的环境影响，特别关注作为主要作物的玉米。该信息对于监控和管理农业实践以减少碳足迹和制定可持续农业政策非常有价值。 NdXebAChwolnewxb5UxcfbDqnwe.png Unit process, single operation Attributional None 无 Consequential The system boundary starts with the production of chemical fertilizers and electricity, and the terminal boundary is the output of agricultural products and pollutants during the crop planting process. There are two production systems: the agricultural input production system and the crop production system. 系统边界从化肥和电力的生产开始，终止边界为作物种植过程输出农产品和污染物，即存在两个生产系统，分别是农资生产系统和作物生产系统 None 无 None 无 The data in this text comes from the statistical sampling survey of Zhangye city, and additional data obtained from a special survey conducted during the 2012 input-output table. In Ganzhou district, Jiantan town, Dangzhai village, and Xiaoman village were selected; in Linze county, Shahe town and Pingchuan town were selected; in Gaotai county, Xuanhua town, Xiangdao village, and Luotuo city township were chosen. After excluding incomplete data, a total of 72 household's effective data was obtained 本文数据来源于张掖市统计抽样调查 2012年投 入产出表时，增加专项调查所获得的数据。甘州区选择碱滩镇、党寨村和小满村三个村镇，临泽县选择沙河镇和平川镇，高台县选择宣化镇、巷道村和骆驼城乡三个村镇， 剔除其中不完整的数据，共得到 72户农户的有效数 据 None 无 Using a combination of stratified random sampling and typical sample selection methods, data were collected through questionnaire surveys and structured interviews with typical samples. The survey content revolves around all input production elements and economic costs, as well as resource consumption, etc. The output mainly focuses on product yield and the current economic value, as well as the quantity of waste generated and its disposal methods. ，采用分层随机抽样和典型样本选择 法结合，问卷调查和典型样本结构化访谈的方式收集 数据。。调查内容围 绕所有投入的生产要素和经济成本以及资源性消耗 等，产出主要关注产品产量和当期的经济价值 ，以及 产生的废弃物量和处理方式等。 None 无 杨肖,钟方雷,郭爱君,王琼.干旱区绿洲制种玉米生命周期环境影响评价——以张掖市为例[J].农业环境科学学报,2017,36(8):1664-1671 杨肖,钟方雷,郭爱君,王琼.干旱区绿洲制种玉米生命周期环境影响评价——以张掖市为例[J].农业环境科学学报,2017,36(8):1664-1671 It is determined that the survey sample size in the three counties and districts of Zhangye city needs to add 80 household surveys. The composition of the samples maintains the principle of being consistent with the local agricultural added value ratio. The corresponding survey household numbers are determined according to the agricultural added value ratio of 7:5:8, that is, 28, 20, and 32 households are respectively drawn from the three counties and districts. 确定张掖市三县区调 查样本量需补充人户调查 80户。样本的构成保持与 当地农业增加值比例相同的原则，按照农业增加值比 例 7：5：8确定相应调查户数，即三县区分别抽取28、 20、32户 The dataset from 2012 should be carefully used and validated for ensuring its relevance and accuracy for current LCA studies of corn production in Zhangye. When utilizing this dataset, the system boundaries must be considered, which start from the production of chemical fertilizers and electricity and end with the output of agricultural products and pollutants during the crop planting process. Users should pay attention to the methodology used for data collection, such as stratified random sampling and typical sample selection, to understand the representativeness of the data. The geographic and technological applicability should also be factored in to guarantee that results are applicable to similar agricultural settings. 2012年的数据集应谨慎使用并验证，以确保其对张掖地区当前玉米生产的生命周期评估研究的相关性和准确性。使用这个数据集时，必须考虑系统边界，它们从化肥和电力的生产开始，并在作物种植过程中农产品和污染物输出结束。用户应该注意数据收集使用的方法，如分层随机抽样和典型样本选择，以了解数据的代表性。还应考虑地理和技术适用性，以确保结果适用于类似的农业环境。 Life Cycle Inventory (LCI) analysis is the foundation of environmental impact assessment in Life Cycle Assessment (LCA), mainly quantifying the assessment process of resources and energy use and waste emissions to the environment throughout the entire lifecycle of products, processes, or activities being assessed. 生命周期清单分析是LCA中环境影响评价的基 础，主要对产品、工艺或活动等被评估对象在整个生 命周期阶段资源、能源的使用与向环境排放废物量的 定量评估过程 Inventory: The internal review was done by several iteration steps concerning raw data validation, raw data documentation, representativity, completeness and consistency of modelling with regard to ISO 14040 and 14044. 清单： 内部审查通过几个迭代步骤完成，涉及原始数据验证、原始数据记录、代表性、完整性、与 ISO 14040 和 14044 有关的建模的一致性。 Tiangong LCI Data Working Group 天工LCI数据工作小组 Haoran Zhang, hrzhang@whu.edu.cn hrzhang@whu.edu.cn hrzhang@whu.edu.cn 2024-03-20T21:29:40+08:00 2024-04-20T14:33:21.686858+08:00 00.01.005 https://lcadata.tiangong.world/showProcess.xhtml?uuid=8253d046-4c53-4c79-8f20-b306185c0b2d&version=01.00.000&stock=TianGong Tiangong LCI Data Working Group 天工LCI数据工作小组 false Free of charge for all users and uses nitrogen Input 180.79 180.79 Measured potassium chloride Input 43.39 43.39 Measured phosphorus Input 49.18 49.18 Measured Fertilizer Input 578.53 578.53 Measured Electricity Input 367.596 367.596 Measured Rice Seeds Input 20.67 20.67 Measured water Input 978.88 978.88 Measured water Output 978.88 978.88 Measured carbon dioxide (fossil),carbon dioxide (fossil) Output 1795.17 1795.17 Measured carbon monoxide (fossil) Output 0.84 0.84 Measured nitrous oxide Output 11.12 11.12 Measured Hydrocarbons, aliphatic, alkanes, unspecified Output 0.11 0.11 Measured particles (PM10) Output 0.97 0.97 Measured sulfide Output 6.08 6.08 Measured ammonium Output 78.93 78.93 Measured nitrate Output 11.75 11.75 Measured nitrous oxide Output 6.91 6.91 Measured Phosphate Anion Output 0.43 0.43 Measured atrazine Output 0.16 0.16 Measured Methyl-1650,Methyl-1650 Output 0.12 0.12 Measured dimethoate Output 0.09 0.09 Measured copper Output 0.0002 0.0002 Measured cadmium Output 1e-05 1e-05 Measured lead Output 5e-05 5e-05 Measured zinc Output 8e-05 8e-05 Measured maize grain Output 1.0 1.0 Measured