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Process Data set: Northwest (Gaotai, Zhangye) Corn Production ; Sowing (en) en zh

Key Data Set Information
Location ZY-GS-CN
Geographical representativeness description Gaotai County
Reference year 2012
Name
Northwest (Gaotai, Zhangye) Corn Production ; Sowing
Use advice for data set When using this data set for Life Cycle Assessment purposes, users should ensure that the system boundaries are appropriately set, considering the production of agricultural inputs like chemical fertilizers and electricity up till the output of agricultural products and pollutants. It's important to accurately reflect these stages to assess the carbon footprint and environmental impact of the corn production process. Users should also note the stratification and sampling methodology utilized and ensure consistency with local agricultural added value when considering this data set for comparison or integration into broader studies.
Technical purpose of product or process The northwest Gaotai, Zhangye corn production sowing process described in this data is intended for agricultural applications, specifically for the cultivation of corn in the designated region. This process represents an agricultural practice implementing inputs such as chemical fertilizers and electricity and is essential for understanding the production phase within the broader field of agro-environmental management.
Classification
Class name : Hierarchy level
  • ILCD: Materials production / Agricultural production means
General comment on data set 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.
Copyright No
Owner of data set
Quantitative reference
Reference flow(s)
  • - 800.0 * 1.0 kg (Mass)
Functional Unit 1 t
Time representativeness
Data set valid until 2012
Technological representativeness
Technology description including background system 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
Flow diagram(s) or picture(s)
  • NdXebAChwolnewxb5UxcfbDqnwe.png Image
LCI method and allocation
Type of data set Unit process, single operation
LCI Method Principle Attributional
Deviation from LCI method principle / explanations None
LCI method approaches
  • Consequential effects - other
Deviations from LCI method approaches / explanations 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.
Deviation from modelling constants / explanations None
Data sources, treatment and representativeness
Deviation from data cut-off and completeness principles / explanations None
Data selection and combination principles 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
Deviation from data selection and combination principles / explanations None
Data treatment and extrapolations principles 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.
Deviation from data treatment and extrapolations principles / explanations None
Data source(s) used for this data set
Sampling procedure 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.
Completeness
Completeness of product model No statement
???common.completenessOtherProblemField??? 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.
Validation
Type of review
Dependent internal review
Reviewer name and institution
Data generator
Data set generator / modeller
Data entry by
Time stamp (last saved) 2024-05-09T00:03:38+08:00
Publication and ownership
UUID acb9d528-a4e0-40f9-ac10-c47b7fce03bd
Date of last revision 2024-05-13T14:53:55.665365+08:00
Data set version 01.00.005
Permanent data set URI https://lcadata.tiangong.world/showProcess.xhtml?uuid=acb9d528-a4e0-40f9-ac10-c47b7fce03bd&version=01.00.000&stock=TianGong
Owner of data set
Copyright No
License type Free of charge for all users and uses

Inputs

Type of flow Classification Flow Location Mean amount Resulting amount Minimum amount Maximum amount
Product flow Materials production / Raw materials 52.64 kg52.64 kg
Product flow Materials production / Raw materials 45.33 kg45.33 kg
Elementary flow Land use / Land occupation 800.0 m2*a800.0 m2*a

Outputs

Type of flow Classification Flow Location Mean amount Resulting amount Minimum amount Maximum amount
Product flow Materials production / Food and renewable raw materials 800.0 kg800.0 kg