Sustainable Corn CAP Research Data (USDA-NIFA Award No. 2011-68002-30190): ARDN Products

[NOTE – Feb 2026: Nitrogen fertilizer data requires updating and a new version will be posted shortly. The fertilizer application rates are assigned incorrectly to several experiments and plots].
The Agricultural Research Data Network (ARDN) provides dataset annotations which facilitate interoperability. For information on how to use ARDN annotations and other data products, see https://agmip.github.io/ARDN/ARDN_how.html. The ARDN project (https://usda.figshare.com/ARDN) is a network of datasets harmonized and aggregated using a common vocabulary termed ICASA. ICASA is a recommended data dictionary by USDA NAL with full description of all variables here.
The Sustainable Corn CAP (Cropping Systems Coordinated Agricultural Project: Climate Change, Mitigation, and Adaptation in Corn-based Cropping Systems) was a multi-state transdisciplinary project supported by the USDA National Institute of Food and Agriculture (Award No. 2011-68002-30190). Research experiments were located through the U.S. Corn Belt and examined farm-level adaptation practices for corn-based cropping systems to current and predicted impacts of climate change.
Refer to the parent data set for a complete explanation of sites and practices studied. The data found here are a subset of the parent data specifically developed for the Agricultural Research Data Network with csv and json files for easy ingestion into crop models. No data have been altered from the parent files although they have been reconfigured substantially to enable alignment with the ICASA dictionary. Data have also been subset to include variables of particular interest for the audience with pesticide operations, insect populations, and soil moisture data not included here.
Resources in this dataset:
Resource Title: Site Metadata.File Name: sitemeta.csvResource Description: Reconfigured csv from original published data to better align with ARDN tools.
Resource Title: Plot Identifiers.File Name: plotid.csvResource Description: Reconfigured csv from original published data to better align with ARDN tools.
Resource Title: Weather (On-Site and Network).File Name: weather_onsite.csvResource Description: Weather data were not in original published data but included here to better align with ARDN format and tools.
Resource Title: Agronomic.File Name: agro.csvResource Description: Reconfigured csv from original published data to better align with ARDN tools.
Resource Title: Soil.File Name: soil.csvResource Description: Reconfigured csv from original published data to better align with ARDN tools.
Resource Title: Greenhouse Gas.File Name: ghg.csvResource Description: Reconfigured csv from original published data to better align with ARDN tools.
Resource Title: Drain Flow.File Name: flow.csvResource Description: Reconfigured csv from original published data to better align with ARDN tools.
Resource Title: Water Quality.File Name: quality.csvResource Description: Reconfigured csv from original published data to better align with ARDN tools.
Resource Title: Water Table.File Name: watertable.csvResource Description: Reconfigured csv from original published data to better align with ARDN tools.
Resource Title: Planting Operations.File Name: ops_plant.csvResource Description: Reconfigured csv from original published data to better align with ARDN tools.
Resource Title: Harvest Operations.File Name: ops_harv.csvResource Description: Reconfigured csv from original published data to better align with ARDN tools.
Resource Title: Tillage Operations.File Name: ops_till.csvResource Description: Reconfigured csv from original published data to better align with ARDN tools.
Resource Title: Fertilization Operations.File Name: ops_fert.csvResource Description: Reconfigured csv from original published data to better align with ARDN tools.
Resource Title: Drainage Water Management Operations.File Name: ops_dwm.csvResource Description: Reconfigured csv from original published data to better align with ARDN tools.
Resource Title: SC2 for Sustainable Corn CAP Research Data (USDA-NIFA Award No. 2011-68002-30190).File Name: master-sc2.jsonResource Description: ARDN sidecar 2 file which allows dataset to be automatically interpreted and translated to end user formats.Resource Software Recommended: AgMIP QuadUI,url: https://github.com/agmip/quadui/releases

[注 – 2026年2月：氮肥数据需更新，新版数据集将于近期发布。部分试验与小区的氮肥施用量赋值存在错误。]
农业研究数据网络（Agricultural Research Data Network, ARDN）提供可提升互操作性的数据集注释。如需了解ARDN注释及其他数据产品的使用方法，请访问https://agmip.github.io/ARDN/ARDN_how.html。ARDN项目（https://usda.figshare.com/ARDN）是一个采用名为ICASA的统一通用词汇表进行数据整合与标准化的数据集网络。ICASA是美国农业部国家农业图书馆（USDA NAL）推荐使用的数据字典，所有变量的完整说明请参见对应页面。
可持续玉米CAP（作物系统协调农业项目：玉米种植系统下的气候变化减缓与适应）是由美国农业部国家食品与农业研究所资助的多州跨学科项目，资助编号为2011-68002-30190。该研究试验遍布美国玉米带，旨在针对气候变化的当前及预测影响，评估玉米种植系统的农场级适应措施。
如需了解研究站点与试验措施的完整说明，请参阅原始父数据集。本文档提供的数据集为父数据集的专属子集，专门面向农业研究数据网络开发，包含csv与json格式文件，便于快速导入作物模型。数据内容未对原始父文件进行修改，但已进行大幅重构以匹配ICASA数据字典。此外，本数据集仅选取了目标受众关注的变量，未包含农药施用、昆虫种群及土壤湿度相关数据。
本数据集包含以下资源：
1. 资源标题：站点元数据。文件名：sitemeta.csv。资源说明：由原始已发表数据重构而成，以更好适配ARDN工具。
2. 资源标题：小区标识符。文件名：plotid.csv。资源说明：由原始已发表数据重构而成，以更好适配ARDN工具。
3. 资源标题：气象数据（站点实测与网络数据）。文件名：weather_onsite.csv。资源说明：原始已发表数据未包含气象数据，本次补充以匹配ARDN格式与工具。
4. 资源标题：农艺学数据。文件名：agro.csv。资源说明：由原始已发表数据重构而成，以更好适配ARDN工具。
5. 资源标题：土壤数据。文件名：soil.csv。资源说明：由原始已发表数据重构而成，以更好适配ARDN工具。
6. 资源标题：温室气体数据。文件名：ghg.csv。资源说明：由原始已发表数据重构而成，以更好适配ARDN工具。
7. 资源标题：排水流量数据。文件名：flow.csv。资源说明：由原始已发表数据重构而成，以更好适配ARDN工具。
8. 资源标题：水质数据。文件名：quality.csv。资源说明：由原始已发表数据重构而成，以更好适配ARDN工具。
9. 资源标题：地下水位数据。文件名：watertable.csv。资源说明：由原始已发表数据重构而成，以更好适配ARDN工具。
10. 资源标题：播种作业数据。文件名：ops_plant.csv。资源说明：由原始已发表数据重构而成，以更好适配ARDN工具。
11. 资源标题：收获作业数据。文件名：ops_harv.csv。资源说明：由原始已发表数据重构而成，以更好适配ARDN工具。
12. 资源标题：耕作作业数据。文件名：ops_till.csv。资源说明：由原始已发表数据重构而成，以更好适配ARDN工具。
13. 资源标题：施肥作业数据。文件名：ops_fert.csv。资源说明：由原始已发表数据重构而成，以更好适配ARDN工具。
14. 资源标题：排水水管理作业数据。文件名：ops_dwm.csv。资源说明：由原始已发表数据重构而成，以更好适配ARDN工具。
15. 资源标题：可持续玉米CAP研究数据SC2文件（美国农业部-国家食品与农业研究所资助编号2011-68002-30190）。文件名：master-sc2.json。资源说明：ARDN边车2文件，可实现数据集自动解析并转换为终端用户所需格式。
推荐使用的数据分析软件：AgMIP QuadUI，下载地址：https://github.com/agmip/quadui/releases