Guidance for Rating Wetland Values in Delaware 1.1
Description and method logic
This method builds on the condition-based evaluation method which has been in place for Delaware’s nontidal wetlands since 2000. Additional metrics were developed in 2013 to also assess the values provided by nontidal wetlands and are designed to be completed remotely using Geographic Information Systems (GIS) and in the field during the Delaware Rapid Assessment Procedure (DERAP) assessment.
This guide is designed to aid users in rapidly assessing the values of wetlands. Wetland condition is different from a wetlands values assessment e.g. a pristine wetland will receive a higher condition score but may receive a lower value score than a disturbed wetland based on the societal benefits provided by that system. Wetland values are based on the opportunity of the wetland to provide a function and the local significance of that function.
The steps include:
Criteria groupings of the method
Socio-cultural, management and planning, significance and ecosystem/habitat
GIS and field survey
Ecological expertise, GIS and modelling knowledge, field data collection and analysis and communication skills.
1. GIS software with the most-recent state level aerial photographs
2. Wetland mapping
4. Ecological Network or Regional Ecosystems mapping
5. Landowner contact details if needed
6. Field datasheet
A value assessment score sheet incorporating the following metrix:
These are combined to provide a final score of 'rich, moderate or limited'.
Prioritisation, management approaches, rehabilitation, catchment planning.
Criteria by category
Physical and chemical
Management and planning
Potential users include field staff and managers.
Others who might be interested in using the outputs include researchers and staff from science-based non-governmental organisations, and environmental and advocacy groups. Consulting firms, educators, academic researchers, and reporters for written and broadcast media, along with the general public, will also find results to be useful to their interests in wetland science and management. This technique is recommended for government agencies involved in regional wetland management. Land managers and NRM practitioners may find this methodology useful as it is a broadly applicable.
Last updated: 7 February 2019
This page should be cited as:
Department of Environment and Science, Queensland (2019) Guidance for Rating Wetland Values in Delaware 1.1, WetlandInfo website, accessed 1 February 2023. Available at: https://wetlandinfo.des.qld.gov.au/wetlands/resources/tools/assessment-search-tool/guidance-for-rating-wetland-values-in-delaware-1-1/