{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,12]],"date-time":"2025-10-12T01:52:36Z","timestamp":1760233956381,"version":"build-2065373602"},"reference-count":46,"publisher":"MDPI AG","issue":"5","license":[{"start":{"date-parts":[[2021,2,27]],"date-time":"2021-02-27T00:00:00Z","timestamp":1614384000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/100006959","name":"U.S. Forest Service","doi-asserted-by":"publisher","award":["USDA PNW Agreement 19-JV-11261989-112"],"award-info":[{"award-number":["USDA PNW Agreement 19-JV-11261989-112"]}],"id":[{"id":"10.13039\/100006959","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Remote Sensing"],"abstract":"<jats:p>Temporal series of lidar, properly field-validated, can provide critical information allowing in-ferences about the dynamics of biomass and carbon in forest canopies. Forest canopies gain carbon through net primary production (NPP) and lose carbon through canopy component damage and death, such as fine and coarse woody debris and litterfall (collectively, debris-fall). We describe a statistical method to extract gamma distributions of NPP and debris-fall rates in forest canopies from lidar missions repeated through time and we show that the means of these distributions covary with ecologically meaningful variables: topography, canopy structure, and taxonomic composition. The method employed is the generalized method of moments that applies the R package gmm to uncover the distribution of latent variables. We present an example with eco-logical interpretations that support the method\u2019s application to change in biomass estimated for a boreal forest in southcentral Alaska. The deconvolution of net change from remote sensing products as distributions of NPP and debris-fall rates can inform carbon cycling models of can-opy-level NPP and debris-fall rates.<\/jats:p>","DOI":"10.3390\/rs13050891","type":"journal-article","created":{"date-parts":[[2021,2,27]],"date-time":"2021-02-27T03:44:31Z","timestamp":1614397471000},"page":"891","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["Estimating Net Primary Productivity (NPP) and Debris-Fall in Forests Using Lidar Time Series"],"prefix":"10.3390","volume":"13","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-8189-7248","authenticated-orcid":false,"given":"Roman","family":"Dial","sequence":"first","affiliation":[{"name":"Institute of Culture and Environment, Alaska Pacific University, Anchorage, AK 99508, USA"}]},{"given":"Pierre","family":"Chauss\u00e9","sequence":"additional","affiliation":[{"name":"Department of Economics, University of Waterloo, Waterloo, ON N2L 3G1, Canada"}]},{"given":"Mallory","family":"Allgeier","sequence":"additional","affiliation":[{"name":"Institute of Culture and Environment, Alaska Pacific University, Anchorage, AK 99508, USA"}]},{"given":"Tom Scott","family":"Smeltz","sequence":"additional","affiliation":[{"name":"Institute of Culture and Environment, Alaska Pacific University, Anchorage, AK 99508, USA"}]},{"given":"Trevor","family":"Golden","sequence":"additional","affiliation":[{"name":"Institute of Culture and Environment, Alaska Pacific University, Anchorage, AK 99508, USA"}]},{"given":"Thomas","family":"Day","sequence":"additional","affiliation":[{"name":"Institute of Culture and Environment, Alaska Pacific University, Anchorage, AK 99508, USA"}]},{"given":"Russell","family":"Wong","sequence":"additional","affiliation":[{"name":"Institute of Culture and Environment, Alaska Pacific University, Anchorage, AK 99508, USA"}]},{"given":"Hans-Erik","family":"Andersen","sequence":"additional","affiliation":[{"name":"USDA Forest Service Pacific Northwest Research Station, University of Washington, Seattle, WA 98195, USA"}]}],"member":"1968","published-online":{"date-parts":[[2021,2,27]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"414","DOI":"10.1111\/ele.12574","article-title":"Demographic Controls of Aboveground Forest Biomass across North America","volume":"19","author":"Vanderwel","year":"2016","journal-title":"Ecol. 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