Details zur Publikation

Kategorie Textpublikation
Referenztyp Zeitschriften
DOI 10.1002/hyp.10376
Volltext Shareable Link
Titel (primär) Evolution of forest precipitation water storage measurement methods
Autor Friesen, J. ORCID logo ; Lundquist, J.D.; Van Stan II, J.T.
Quelle Hydrological Processes
Erscheinungsjahr 2015
Department CATHYD
Band/Volume 29
Heft 11
Seite von 2504
Seite bis 2520
Sprache englisch
Keywords measurement methods; forest; interception; rain; snow
UFZ Querschnittsthemen TERENO; RU2;
Abstract Precipitation intercepted by forests plays a major role in more than one-fourth of the global land area's hydrologic cycle. Direct in situ measurement of intercepted precipitation is challenging, and thus, it is typically indirectly estimated through comparing precipitation under forest cover and in the open. We discuss/compare measurement methods for forest precipitation interception beyond classical budgeting and then recommend future directions for improving water storage estimation. Comparison of techniques shows that methods submerging tree components produce the largest water storage capacity values. Whole-tree lysimeters have been used with great success at quantifying water storage for the integrated system yet are unable to separate trunk versus canopy storage. Remote sensing, particularly signal attenuation, may permit this separation. Mechanical displacement methods show great promise and variety of techniques: pulley/spring system, branch strain sensors, trunk compression sensors and photography. Relating wind sway to water storage also shows great promise with negligible environmental disruption yet is currently at the proof-of-concept stage. Suggested future directions focus on development of common features regarding all discussed methods: (i) measurement uncertainties or processes beyond interception influencing the observed signal, (ii) scaling approaches to move from single tree components to the single-tree and forest scales and (iii) temporal scaling to estimate the relevance of single-interception components over longer timescales. Through addressing these research needs, we hope the scientific community can develop an ‘integrated’ monitoring plan incorporating multiple measurement techniques to characterize forest-scale water storage dynamics while simultaneously investigating underlying (smaller-scale) components driving those dynamics across the spectrum of precipitation and forest conditions.
dauerhafte UFZ-Verlinkung
Friesen, J., Lundquist, J.D., Van Stan II, J.T. (2015):
Evolution of forest precipitation water storage measurement methods
Hydrol. Process. 29 (11), 2504 - 2520 10.1002/hyp.10376