Land health surveillance and response: a framework for evidence-informed land management

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cg.contributor.crpWater, Land and Ecosystemsen_US
cg.identifier.doihttps://doi.org/10.1016/j.agsy.2014.09.002en_US
cg.identifier.wlethemeDecision Analysis and Informationen_US
cg.issn0308-521Xen_US
cg.journalAgricultural Systemsen_US
cg.subject.wleLAND DEGRADATIONen_US
cg.volume132en_US
dc.contributor.authorShepherd, Keith D.en_US
dc.contributor.authorShepherd, G.en_US
dc.contributor.authorWalsh, Markus G.en_US
dc.date.accessioned2016-06-27T15:11:20Zen_US
dc.date.available2016-06-27T15:11:20Zen_US
dc.identifier.urihttps://hdl.handle.net/10568/75871en_US
dc.titleLand health surveillance and response: a framework for evidence-informed land managementen_US
dcterms.abstractDegradation of land health – the capacity of land, relative to its potential, to sustain delivery of ecosystem services – is recognized as a major global problem in general terms, but remains poorly quantified, resulting in a lack of specific evidence to focus action. Land health surveillance and response is designed to overcome limitations of current assessment approaches. It is modelled on science principles and approaches used in surveillance in the public health sector, which has a long history of evidence-informed policy and practice. Key elements of the science framework are: (i) repeated measurement of land health and associated risk factors using probability based sampling of well defined populations of sample units; (ii) standardized protocols for data collection to enable statistical analysis of patterns, trends, and associations; (iii) case definitions based on specific diagnostic criteria; (iv) rapid low cost screening tests to permit detection of cases and non-cases in large numbers of samples; (v) cost-effectiveness evaluation of interventions based on projected reduction in risks and problem incidence; (vi) design of statistically analysable studies to evaluate interventions in the real-world; (vii) meta-analysis of these data to guide design of public policy and intervention programmes; and (viii) integrating surveillance and the communication and use of results into operational systems as part of regular policy and practice. The scientific rigour of land health surveillance has potential to provide a sound basis for directing and assessing action to combat land degradation. Specialized national surveillance units should be established to harness and realign existing resources to provide integrated national land health systems. An international unit is needed to provide science and technology support to governments and develop standards, whereas an international agency should coordinate land health surveillance globally. Application of the surveillance framework could result in a shift away from a focus on rehabilitation of severely degraded land towards a preventive approach that focuses more on reducing distal risks at national and regional levels.en_US
dcterms.accessRightsOpen Accessen_US
dcterms.audienceScientistsen_US
dcterms.bibliographicCitationShepherd, K.D., Shepherd, G. Walsh, M.G. (2015). Land health surveillance and response: a framework for evidence-informed land management. Agricultural Systems 132: 93–106.en_US
dcterms.extentp. 93-106en_US
dcterms.issued2015-01en_US
dcterms.languageenen_US
dcterms.licenseCC-BY-NC-ND-3.0en_US
dcterms.publisherElsevieren_US
dcterms.subjectassessmenten_US
dcterms.typeJournal Articleen_US

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