California Nitrogen Assessment
The United States (California)
|Geographical scale of the assessment||Sub-national|
|Country or countries covered||United States|
|Any other necessary information or explanation for identifying the location of the assessment, including site or region name||
Geographical scale of the assessment
Country or countries covered
Any other necessary information or explanation for identifying the location of the assessment, including site or region name
Conceptual framework, methodology and scope
Gain a comprehensive view of N flows in the state, with emphasis on agriculture’s roles.
Provide useful insights for stakeholders into the balance between the benefits of agricultural nitrogen and the effects of surplus nitrogen in the environment.
Compare options, including practices and policies.
Move beyond “academic business as usual” to more effectively link science with action and to produce information that informs both policy and field-level practice.
Mandate for the assessment
Funded by the David and Lucile Packard Foundation, due to concern about water quality and greenhouse gas emissions from agriculture, with interest from state government leaders.
Conceptual framework and/or methodology used for the assessment
Millennium Ecosystem Assessment (MA)
URL or copy of conceptual framework developed or adapted
- Inland water
- Forest and woodland
- Cultivated/Agricultural land
Species groups assessed
Ecosystem services/functions assessed
- Genetic resources
- Ornamental resources
- Raw materials
- Air quality
- Climate regulation
- Regulation of water quality
- Waste treatment
- Maintainence of soil fertility
- Nutrient cycling
- Soil formation and fertility
- Primary production
- Recreation and tourism
- Spiritual experience
Scope of assessment includes
Drivers of change in systems and services
Impacts of change in services on human well-being
Options for responding/interventions to the trends observed
Explicit consideration of the role of biodiversity in the systems and services covered by the assessment
Timing of the assessment
Year assessment started
Year assessment finished
If ongoing, year assessment is anticipated to finish
Periodicity of assessment
Communication materials (e.g. brochure, presentations, posters, audio-visual media)
Tools and processes
Tools and approaches used in the assessment
- Trade-off analysis
Process used for stakeholder engagement in the assessment process and which component
From 2009-2001, used multiple avenues -- stakeholder forums, farm visits, growers consultations, and industry field trips -- to engage with more than 350 stakeholders across 50 organizations.
Outreach events generated more than 100 nitrogen-related questions and provided data, practical examples, and management options to guide the assessment.
Collaboration with stakeholders to create four 'scenarios' on the future of nitrogen management in California agriculture.
A 30-member Stakeholder Advisory Committee provides feedback and acts as liaison between the CNA and members' constituencies.
Key stakeholder groups engaged
Farmer organizations and commodity groups
Individual farmers, ranchers, nurseries
Fertilizer industry organizations
Health and social justice organizations
The number of people directly involved in the assessment process
Less than 10
Incorporation of scientific and other types of knowledge
- Scientific information only
- Resource experts (e.g. foresters etc)
Supporting documentation for specific approaches, methodology or criteria developed and/or used to integrate knowledge systems into the assessment
Assessment reports peer reviewed
Accessibility of data used in assessment
Impacts the assessment has had on policy and/or decision making, as evidenced through policy references and actions
Independent or other review on policy impact of the assessment
Lessons learnt for future assessments from these reviews
Capacity building needs identified during the assessment
Actions taken by the assessment to build capacity
Sharing of data/repatriation of data, Workshops, Formal training, Communication and awareness raising