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Process Data set: Eggplant production in solar greenhouse ; Agricultural Inputs Production (General) (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 ; Agricultural Inputs Production (General)
Use advice for data set When using this dataset for life cycle assessment, consider the system boundary as defined from cradle to farm gate. This includes agricultural input production, crop production, and transportation subsystems. Exclude the processes related to infrastructure construction, agricultural machinery production, vegetable consumption, and waste emissions. Pay attention to the methodological details provided for data collection and measurements, such as the static chamber method for nitrous oxide, free-flow leaching for soil nutrients, and ICP-MS for heavy metals in organic fertilizers. Ensure correct referencing of the research results from the provided literature for inventory analysis, specifically Liang Long [22] and [19] for detailed measurement processes.
Technical purpose of product or process This dataset focuses on the application of different treatment methods (conventional, integrated, and organic) in greenhouse vegetable production with an emphasis on eggplant growth. The arched greenhouse, which is 60 m in length and 7 m in width, facilitates the rotation of various vegetable crops twice a year, particularly nurturing eggplants from March to August over a 4-year period. Such data can inform agricultural best practices and sustainability assessments for both the local Chinese context and broader regions engaged in similar production techniques.
Classification
Class name : Hierarchy level
  • ILCD: Unit processes / 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
Validation
Type of review
Dependent internal review
Reviewer name and institution
Data generator
Data set generator / modeller
Data entry by
Time stamp (last saved) 2024-03-19T16:00:41+08:00
Publication and ownership
UUID 70cc74ed-78cb-455d-9d12-ea7d40c34660
Date of last revision 2024-04-20T14:44:45.715207+08:00
Data set version 00.01.005
Permanent data set URI https://lcadata.tiangong.world/showProcess.xhtml?uuid=70cc74ed-78cb-455d-9d12-ea7d40c34660&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
Energy carriers and technologies / Electricity 633.58 MJ633.58 MJ
General comment comprehensive
Elementary flow
Resources / Resources from water / Renewable material resources from water 0.9177 m30.9177 m3
General comment comprehensive

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 comprehensive
Elementary flow
Emissions / Emissions to air / Emissions to air, unspecified 0.0055 kg0.0055 kg
General comment comprehensive
0.0221 0.0221
General comment comprehensive
Elementary flow
Emissions / Emissions to air / Emissions to urban air close to ground 46.82 kg46.82 kg
General comment comprehensive
Elementary flow
Emissions / Emissions to air / Emissions to air, unspecified 0.0418 kg0.0418 kg
General comment comprehensive
Elementary flow
Emissions / Emissions to air / Emissions to lower stratosphere and upper troposphere 8.0E-4 kg8.0E-4 kg
General comment comprehensive
Product flow
Emissions / Metal and semimetal elements and ions 0.1826 kg0.1826 kg
General comment comprehensive
Elementary flow
Emissions / Emissions to air / Emissions to air, unspecified 0.1472 kg0.1472 kg
General comment comprehensive
0.0226 0.0226
General comment comprehensive
Elementary flow
Emissions / Emissions to air / Emissions to air, unspecified 0.0045 kg0.0045 kg
General comment comprehensive
Elementary flow
Emissions / Emissions to water / Emissions to fresh water 0.0789 kg0.0789 kg
General comment comprehensive
Elementary flow
Emissions / Emissions to water / Emissions to water, unspecified (long-term) 0.4015 kg0.4015 kg
General comment comprehensive
Elementary flow
Emissions / Emissions to air / Emissions to air, unspecified (long-term) 3.98E-8 kg3.98E-8 kg
General comment comprehensive
Elementary flow
Emissions / Emissions to air / Emissions to urban air close to ground 6.21E-7 kBq6.21E-7 kBq
General comment comprehensive
Elementary flow
Emissions / Emissions to air / Emissions to air, unspecified (long-term) 3.11E-7 kg3.11E-7 kg
General comment comprehensive
Elementary flow
Emissions / Emissions to air / Emissions to air, unspecified 1.55E-6 kg1.55E-6 kg
General comment comprehensive