Spatiotemporal Nutrient Balance Analysis Across Agricultural and Municipal Systems
Load User WWTP Data
Standard CRS for Manureshed Analysis
manureshed: Manureshed Analysis with WWTP Integration
Create Agricultural Classification Map
Map WWTP Column Names to Standard Format
Create WWTP Influence Map
Create WWTP Point Map
Conversion Factor: P2O5 to P
Create Absolute Change Plot
Create Before/After Comparison Plot
Create Impact Ratio Plot
Quick Analysis with Visualization
Quick Data Check
Quick State Analysis with Visualization
Save Transition Probability Matrix
Print Summary of Analysis Results
Test OSF Connection
Validate Required Columns
View Package Cheat Sheet
Aggregate WWTP Data by Spatial Boundaries
Classify WWTP Sources by Load Size
Clean WWTP Data
Filter WWTP Data for Positive Loads
Classify Agricultural Nitrogen Status with Custom Efficiency Factor
Classify Agricultural Nitrogen Status
Classify Agricultural Phosphorus Status with Custom Efficiency Factor
Classify Agricultural Phosphorus Status
Process NuGIS Data for Manureshed Analysis
Enhanced Batch Analysis with Full Visualizations
Batch Analysis with Parallel Processing
Compare Multiple Regions
Integrate WWTP Data with Agricultural Classifications (Updated)
Conversion Factor: Kilograms to US Tons
Launch Interactive Manureshed Dashboard
Conversion Factor: Pounds to Kilograms
Conversion Factor: Pounds to US Tons
List Available Built-in Years
List Available Regions
Load Built-in Spatial Boundaries from OSF
Load Built-in NuGIS Data from OSF
Load Built-in WWTP Data from OSF
Load Texas HUC8 Boundaries from OSF
Load Texas HUC8 Data from OSF
Compare Two Analysis Results
Create Regional Summary
Create Stacked Area Plot
Create Year-over-Year Comparison Plots
Create Year-over-Year Change Plot
Get Cropland Threshold by Scale
Default Color Schemes for Nutrient Classifications
Get Built-in Region Definitions
Get State Boundaries for Mapping
Get State FIPS Code
Check Package Health and Dependencies
Complete Integration Pipeline (Updated)
Add Centroid Coordinates to Spatial Data
Add Texas HUC8 Data (Updated for OSF)
Complete Agricultural Classification Pipeline with Custom Efficiency F...
Complete Agricultural Classification Pipeline
Batch Analysis Across Multiple Years
Benchmark Analysis Performance
Calculate Cropland Threshold for Exclusion
Calculate Spatial Transition Probabilities
Check Data Availability from OSF
Display Package Citation Information
Clean Category Names for Display
Clean Text Data
Clear Data Cache
Compare Multiple Analysis Scenarios
CONUS States
Convert Load Units to Tons
Create Analysis Report
Create Batch Summary Report
Create Classification Summary Table
Create Classification Trend Plot
Create Comparison Plots
Create Comparison Summary Statistics
Create Comprehensive Batch Comparisons
Create Network Plot from Transition Probabilities
Create Regional Comparison Plots
NuGIS and EPA WWTP Data Sources
Package Startup Message for OSF Data Approach
Package Version and Build Information
Download All Datasets from OSF
Download and Cache Data from OSF
Export Results for GIS Applications
Export for Policy Briefs
Export for Publication
Extract Metrics from Analysis Results
Extract Trend Data from Batch Results
Filter Data by State
Format HUC8 Codes
Generate Report Content
Complete Manureshed Analysis Workflow (Built-in Data)
Run State-Level Analysis
Save Analysis Summary
Save Centroid Data
Save Plot
Save Spatial Data
Complete WWTP Processing Pipeline
Convert WWTP Data to Spatial Format
A comprehensive framework for analyzing agricultural nutrient balances across multiple spatial scales (county, 'HUC8', 'HUC2') with integration of wastewater treatment plant ('WWTP') effluent loads for both nitrogen and phosphorus. Supports classification of spatial units as nutrient sources, sinks, or balanced areas based on agricultural surplus and deficit calculations. Includes visualization tools, spatial transition probability analysis, and nutrient flow network mapping. Built-in datasets include agricultural nutrient balance data from the Nutrient Use Geographic Information System ('NuGIS'; The Fertilizer Institute and Plant Nutrition Canada, 1987-2016) <https://nugis.tfi.org/tabular_data/> and U.S. Environmental Protection Agency ('EPA') wastewater discharge data from the 'ECHO' Discharge Monitoring Report ('DMR') Loading Tool (2007-2016) <https://echo.epa.gov/trends/loading-tool/water-pollution-search>. Data are downloaded on demand from the Open Science Framework ('OSF') repository to minimize package size while maintaining full functionality. The integrated 'manureshed' framework methodology is described in Akanbi et al. (2025) <doi:10.1016/j.resconrec.2025.108697>. Designed for nutrient management planning, environmental analysis, and circular economy research at watershed/administrative to national scales. This material is based upon financial support by the National Science Foundation, EEC Division of Engineering Education and Centers, NSF Engineering Research Center for Advancing Sustainable and Distributed Fertilizer Production (CASFER), NSF 20-553 Gen-4 Engineering Research Centers award 2133576. We thank Dr. Robert D. Sabo (U.S. Environmental Protection Agency) for his valuable contributions to the conceptual development and review of this work.