Management and rehabilitation of peatlands: The role of water chemistry, hydrology, policy, and emerging monitoring methods to ensure informed decision making.

As the world's most abundant source of terrestrial carbon, peatlands provide numerous ecosystem services, including habitat biodiversity and freshwater quality. Land and water management practices in relation to peatlands, for either exploitation or rehabilitation, are complicated by several factors: spatial diversity in geochemistry; laborious survey methods that may be subject to confounding factors; regional and irregular climate variations; a lack of generalizability regarding appropriate strategies; and, in some countries, by non-implementation of water quality assessment policies for pollution control and land use. Such factors raise uncertainty in the effectiveness of restoration and rehabilitation strategies, while modern peatland management looks to develop land use schemes that offer minimal risk to the environment. The aims of this paper were to (1) investigate the disparate factors influencing peatland management which confound appropriate interventions for enhanced water quality (2) examine how non-implementation of national policies for water pollution control may result in adverse environmental impacts, and (3) propose an innovative peatland management methodology for a detailed and robust land analysis with water quality being the primary consideration. The paper suggests that optical, radar, and radiometric remote sensing methods may be used to identify management zones within a peatland, that may require variable management strategies during restoration. Satellite remote sensing and Earth observation methodologies are well documented; hence, the prospect and properties of a less documented airborne electromagnetic approach may present an opportunity for improved management of peatlands. [Display omitted] • Peatland management impacts are confounded by variable functions of ecosystems. • Geochemical variability makes adaptation of universal management practice difficult. • Peatland conservation policy may be inhibited by lack of government support/resources. • The Ramsar convention ensures decision making based on ecosystem effects. • Radiometric data (RD) can identify optimal areas for restoration works in peatlands. • Use of RD for identifying peatland geochemical behavior is questionable. [ABSTRACT FROM AUTHOR]