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Process Data set: Eggplant production in solar greenhouse ; Crop Production (Conventional) (en) en zh

Key Data Set Information
Location HD-HEB-CN
Geographical representativeness description Qu Zhou
Reference year 2002
Name
Eggplant production in solar greenhouse ; Crop Production (Conventional)
Use advice for data set When utilizing this data set for Life Cycle Assessment (LCA), users should adhere to the specific methodological guidance provided for inventory analysis, impact assessment, and result interpretation stages. Attention should be paid to the system boundaries set from cradle to farm gate, ensuring to exclude infrastructure construction, agricultural machinery production, vegetable consumption, and waste emissions processes. The methodological advice includes using static chamber methods for collecting nitrous oxide emissions and ICP-MS for analyzing heavy metals in organic fertilizers. It is imperative to reference the detailed analytical procedures as documented in the indicated literature to ensure accuracy and consistency with the original research methodologies.
Technical purpose of product or process The data set represents the conventional production of vegetables in a long-term positioning experiment conducted in Qu Zhou's greenhouse facility. The information is applicable for analyses focusing on the environmental impact and resource usage in conventional vegetable cultivation practices, specifically pertaining to eggplant growth. It may be used in agricultural studies, governmental policymaking, and industrial agricultural planning to understand the environmental implications of using conventional, integrated, and organic methods.
Classification
Class name : Hierarchy level
  • ILCD: Materials production / Agricultural production means
General comment on data set The solar greenhouse used in the experiment is an arch type with a length of 60 m and a width of 7 m. In the greenhouse, a variety of vegetables were rotated (two crops a year). In this study, eggplant seeds grew from March to August every year, and the experiment was carried out for the period of 4 years (2013 to 2016). Three treatment modes were set up in the experiment: (1) Conventional mode: the traditional greenhouse management mode of local farmers was adopted, mainly chemical fertilizer was applied, and a small amount of organic fertilizer was applied. ② Comprehensive mode: the amount of organic fertilizer and chemical fertilizer applied is 50% of the amount applied in organic and conventional mode, respectively. The biological control method is mainly used for disease and pest control, and low-toxicity and low-residue chemical pesticides are used for treatment in severe cases. (3) Organic mode: According to the production standards of organic vegetables, only organic fertilizers (compost and chicken manure) are applied, and chemical fertilizers and pesticides are not used. Agricultural measures and physical control of pests and diseases are mainly used (such as using yellow board to lure and kill, insect control nets, etc.). The nitrogen application amount of the integrated and organic models was the same as that of the normal scale model, and the irrigation conditions of each treatment were consistent. The irrigation method was large flood irrigation (Table 1).
Copyright No
Owner of data set
Quantitative reference
Reference flow(s)
Functional Unit 1T eggplant
Time representativeness
Data set valid until 2017
Time representativeness description The long-term positioning experiment for greenhouse vegetables started in March 2002.
Technological representativeness
Technology description including background system The experiment used a 60 m long and 7 m wide arched greenhouse for the cultivation of various vegetables in rotation (two crops per year). The study focused on the growth of eggplants from March to August each year, conducting a 4-year experiment from 2013 to 2016. Three treatments were applied: conventional, integrated, and organic.
Flow diagram(s) or picture(s)
  • QRRVbnP04ox2x4x17xxc3GtXn8d.png Image
LCI method and allocation
Type of data set Unit process, single operation
Deviation from LCI method principle / explanations None
Deviations from LCI method approaches / explanations Life cycle assessment includes the following 4 steps: goal definition and scope delineation, inventory analysis, impact assessment, and result interpretation. Brief descriptions of the main steps are given below.
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 inventory analysis includes the collection of data and quantitative processing of the data. In the agricultural input production subsystem, the pollutants produced by fertilizers, organic fertilizers, insecticides, mulching films, and diesel, etc., (including CO, CO2, NOx, SO2, CH4, N2O, and COD, etc.) and energy consumption are calculated referring to the research results of Liang Long [22].
Deviation from data selection and combination principles / explanations None
Data treatment and extrapolations principles Nitrous oxide collection uses the static chamber method [19], and the measurement is conducted using the Agilent 7890A gas chromatograph. Soil nitrate nitrogen (NO3-N) and total phosphorus leaching are collected using a free-flow underground leaching collection device in agricultural fields, and after each irrigation, leachate is extracted using a pump within 3 to 5 days, and measured with a flow analyzer (TRAACS2000). The extraction of heavy metals (mainly considering Cu, Zn, Pb, and Cd) in organic fertilizers uses the nitric acid-hydrochloric acid-hydrofluoric acid digestion method, and the test liquid is measured by ICP-MS. When the crops are harvested, each harvest is weighed and recorded, taking the average of three times. Detailed measurement processes for each indicator are referenced in the literature [19].
Deviation from data treatment and extrapolations principles / explanations None
Data source(s) used for this data set
Completeness
Completeness of product model No statement
???common.completenessOtherProblemField??? The system boundary for the Life Cycle Assessment (LCA) in this study is set from cradle to farm gate, including the agricultural input production subsystem, the crop production subsystem, and the transportation subsystem, but does not include processes such as infrastructure construction, agricultural machinery production, vegetable consumption, and waste emissions.
Validation
Type of review
Dependent internal review
Reviewer name and institution
Data generator
Data set generator / modeller
Data entry by
Time stamp (last saved) 2024-04-24T12:41:56+08:00
Publication and ownership
UUID d441d7cd-a005-4b57-bf32-db966c798684
Date of last revision 2024-05-13T15:12:19.789751+08:00
Data set version 01.00.005
Permanent data set URI https://lcadata.tiangong.world/showProcess.xhtml?uuid=d441d7cd-a005-4b57-bf32-db966c798684&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 5.8 kg5.8 kg
General comment comprehensive
Product flow
Materials production / Raw materials 41.67 kg41.67 kg
General comment comprehensive
Product flow
Energy carriers and technologies / Crude oil based fuels 50.0 kg50.0 kg
General comment comprehensive
Elementary flow
Resources / Resources from water / Renewable material resources from water 9425.0 m39425.0 m3
General comment comprehensive
Product flow
Energy carriers and technologies / Electricity 18.18 MJ18.18 MJ
General comment conventional
Elementary flow
Land use / Land occupation 85.34 m2*a85.34 m2*a
General comment conventional
Elementary flow
Resources / Resources from water / Renewable material resources from water 80.44 m380.44 m3
General comment conventional

Outputs

Type of flow Classification Flow Location Mean amount Resulting amount Minimum amount Maximum amount
Product flow
Emissions / Other substance type 1000.0 kg1000.0 kg
General comment conventional
Elementary flow
Emissions / Emissions to air / Emissions to air, unspecified 1.24E-5 kg1.24E-5 kg
General comment conventional
3.0E-4 3.0E-4
General comment conventional
Elementary flow
Emissions / Emissions to air / Emissions to urban air close to ground 1.36 kg1.36 kg
General comment conventional
Elementary flow
Emissions / Emissions to air / Emissions to air, unspecified 1.1134 kg1.1134 kg
General comment conventional
Elementary flow
Emissions / Emissions to air / Emissions to lower stratosphere and upper troposphere 0.179 kg0.179 kg
General comment conventional
Product flow
Emissions / Metal and semimetal elements and ions 0.002 kg0.002 kg
General comment conventional
Elementary flow
Emissions / Emissions to air / Emissions to air, unspecified (long-term) 2.1173 kg2.1173 kg
General comment conventional
Elementary flow
Emissions / Emissions to air / Emissions to air, unspecified 0.0017 kg0.0017 kg
General comment conventional
2.99E-5 2.99E-5
General comment conventional
Elementary flow
Emissions / Emissions to air / Emissions to air, unspecified 0.0165 kg0.0165 kg
General comment conventional
Elementary flow
Emissions / Emissions to air / Emissions to air, unspecified (long-term) 4.0E-4 kg4.0E-4 kg
General comment conventional
Elementary flow
Emissions / Emissions to air / Emissions to urban air close to ground 0.0015 kBq0.0015 kBq
General comment conventional
Elementary flow
Emissions / Emissions to air / Emissions to air, unspecified (long-term) 0.0048 kg0.0048 kg
General comment conventional
Elementary flow
Emissions / Emissions to air / Emissions to air, unspecified 0.0148 kg0.0148 kg
General comment conventional
Elementary flow
Emissions / Emissions to air / Emissions to air, unspecified 5.0E-4 kg5.0E-4 kg
General comment conventional
Product flow
Emissions / Pesticides 0.032 kg0.032 kg
General comment conventional
Elementary flow
Emissions / Emissions to air / Emissions to air, unspecified 0.0325 kg0.0325 kg
General comment conventional
Elementary flow
Emissions / Emissions to soil / Emissions to agricultural soil 0.0325 kg0.0325 kg
General comment conventional
Elementary flow
Emissions / Emissions to air / Emissions to air, unspecified 0.0325 kg0.0325 kg
General comment conventional