02315naa a2200349 a 450000100080000000500110000800800410001902400510006010000160011124501200012726000090024752012240025665000220148065300300150265300400153265300220157265300450159465300300163965300270166965300360169665300360173265300280176870000150179670000130181170000170182470000170184170000170185870000130187570000160188870000140190477300470191821570652023-10-03       2022    bl uuuu     u00u1 u    #d7 ahttps://doi.org/10.1093/pnasnexus/pgac1022DOI1 aPUTZ, F. E.  aSustained timber yield claims, considerations, and tradeoffs for selectively logged forests.h[electronic resource]  c2022  aWhat is meant by sustainability depends on what is sustained and at what level. Sustainable forest management, for example, requires maintenance of a variety of values not the least of which is sustained timber yields (STYs). For the 1 Bha of the world?s forests subjected to selective or partial logging, failure to maintain yields can be hidden by regulatory requirements and questionable auditing practices such as increasing the number of commercial species with each harvest, reducing the minimum size at which trees can be harvested and accepting logs of lower quality. For assertions of STY to be credible, clarity is needed about all these issues, as well as about the associated ecological and economic tradeoffs. Lack of clarity about sustainability heightens risks of unsubstantiated claims and unseen losses. STY is possible but often requires cutting cycles that are longer and logging intensities that are lower than prescribed by law, as well as effective use of low-impact logging practices and application of silvicultural treatments to promote timber stock recovery. These departures from business-as-usual practices will lower profit margins but generally benefit biodiversity and ecosystem services.  aForest management  aClimate change mitigation  aCrescimento e produção de madeira  aGestão florestal  aMitigação das alterações climáticas  aNatural climate solutions  aNature based solutions  aSoluções baseadas na natureza  aSoluções climáticas naturais  aTimber growth and yield1 aROMERO, C.1 aSIST, P.1 aSCHWARTZ, G.1 aTHOMPSON, I.1 aROOPSIND, A.1 aRUSLANDI1 aMEDJIBE, V.1 aELLIS, P.  tPNAS Nexusgv. 1, n. 3, p. 1-7, July 2022.