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60篇 您的检索式:作者名="Poll RG"
    题名 作者 年代 出处 被引量
1National Forest Inventories capture the multifunctionality of managed forests in Germany显示文摘Background:Forests perform various important ecosystem functions that contribute to ecosystem services.In many parts of the world,forest management has shifted from a focus on timber production to multi-purpose forestry,combining timber production with the supply of other forest ecosystem services.However,it is unclear which forest types provide which ecosystem services and to what extent forests primarily managed for timber already supply multiple ecosystem services.Based on a comprehensive dataset collected across 150 forest plots in three regions differing in management intensity and species composition,we develop models to predict the potential supply of 13 ecosystem services.We use those models to assess the level of multifunctionality of managed forests at the national level using national forest inventory data.Results:Looking at the potential supply of ecosystem services,we found trade-offs(e.g.between both bark beetle control or dung decomposition and both productivity or soil carbon stocks)as well as synergies(e.g.for temperature regulation,carbon storage and culturally interesting plants)across the 53 most dominant forest types in Germany.No single forest type provided all ecosystem services equally.Some ecosystem services showed comparable levels across forest types(e.g.decomposition or richness of saprotrophs),while others varied strongly,depending on forest structural attributes(e.g.phosphorous availability or cover of edible plants)or tree species composition(e.g.potential nitrification activity).Variability in potential supply of ecosystem services was only to a lesser extent driven by environmental conditions.However,the geographic variation in ecosystem function supply across Germany was closely linked with the distribution of main tree species.Conclusions:Our results show that forest multifunctionality is limited to subsets of ecosystem services.The importance of tree species composition highlights that a lack of multifunctionality at the stand level can be compensated by managing forests at the landscape level,when stands of complementary forest types are combined.These results imply that multi-purpose forestry should be based on a variety of forest types requiring coordinated planning across larger spatial scales.Nadja K.Simons María R.Felipe-Lucia Peter Schall Christian Ammer Jürgen Bauhus Nico Blüthgen Steffen Boch François Buscot Markus Fischer Kezia Goldmann Martin M.Gossner Falk Hänsel Kirsten Jung Peter Manning Thomas Nauss Yvonne Oelmann Rodica Pena Andrea Polle Swen C.Renner Michael Schloter Ingo Schöning Ernst-Detlef Schulze Emily F.Solly Elisabeth Sorkau Barbara Stempfhuber Tesfaye Wubet Jörg Müller Sebastian Seibold Wolfgang W.Weisser 2021Forest Ecosystems2021,8,1:2
2Failure of femoral head fixa-tion:a cadaveric analysis of lag screw cut-out with the gamma locking nail and AO dynamic hip below显示文摘Haynes RC Poll RG Miles AW 1997Injury1997,28,56:1
3Faliure of femoral head fixation: a cadaveric analysis of lag screw cut-out with the gamma locking nail and AO DHS显示文摘Haynes RC Poll RG Miles AW 1997Injury1997,28,56:1
4Failure of femoral head fixation:a cadaveric analysis of lag screw cut-out with the gamma locking nail and AO dynamic hip screw显示文摘HAYNES RC POLL RG MILES AW 1997Injury1997,28,:1
5Failure of fenoral head fixa-fion:a cadaveric analysis of lag screw eut-out wth the gamma lee-king nail and Ao dgnamic hip screw显示文摘Haynes RC Poll RG Miles AW 1997Injurgy1997,28,56:1
6Failure of femoral head fixation:a eadaveric analysis of lag screw cut-out with the gamma locking nail and AO dynamic hip screw 显示文摘Haynes RC Poll RG Miles AW 1997Injury1997,28,56:1
7Faliure of femoral head fixation:a eadaveric analysis of lag screw cut-out with the gam ma locking nail and AODHS显示文摘Haynes RC Poll RG Miles AW 2009Injury2009,28,56:1
8Failure of fermoral head fixation:a cadaveric analysis of lag screw cut out with the Gamma locking nail and AODHS显示文摘Haynes RC Poll RG Miles AW 1997Injury1997,28,:1
9Failure of femoral head fixation:a cadaeric analysis of lag screw cut out with the gamma locking nail and AO DHS显示文摘 Poll RG Miles AW 1997Injury1997,28,:1
10Failure of femoral head fixation:a cadaveric analysis of lag screw cut-out with the gamma locking nail and AO dynamic hip screw显示文摘Haynes RC Poll RG Miles AW 1997Injury1997,28,526:1
11Failure of femoral head fixation:a (earthc) analysis of lag screw cut-out with the gamma locking naiand AO dynamic hip screw显示文摘Haynes RC Poll RG Miles AW 0,,5:1
12Failure of femoral head fixation:a cadaveric analysis of lag screw cut-out with the gamma locking nail and AO dynamic hip screw显示文摘Haynes RC Poll RG Miles AW 1997Injury1997,28,56:1
13Failure of femoral head fixa-tion :a cadaveric analysis of lag screw cut - out with the gamma loc-king nail and AO dynamic hip screw 显示文摘Haynes RC Poll RG Miles AW 1997Injury1997,28,56:1
14Failure of fermoral head fixatlon:a cadaveric analysis of lag screw cut out with the Gamma loc-king nail and AODHS显示文摘Haynes RC Poll RG Miles AW et ol 1997Injury1997,28,6:1
15Failure of femoral head fixation:acadaveric analysis of lag screw cut-out with the gamma locking nail andAO dynamic hip below 显示文摘Haynes RC Poll RG Miles AW 1997Injury1997,28,56:1
16Scarf osteotomy in hallux valgus : a review of 72 cases 显示文摘Berg RP Olsthoom PG Poll RG 2007Acta Orthop Belg2007,2,:1
17Failure of femoral head fixation:a cadaeric analysis of lag screw cut out with the gamma locking nail and AODHS显示文摘 Poll RG Mils AW 1997Injury1997,28,:1
18Failure of femoral head fixation:a cadaveric analysis of lag screw cut- out with the Gamma locking nail and AO dynamic hip screw显示文摘Haynes RC Poll RG Miles AW 1997Injury1997,28,:1
19Failure of fermoral head fixation:a cadaveric analysis of lag screw cut out with the Gamma locking nail and AODHSE 显示文摘Haynes RC Poll RG Miles AW 1997Injury1997,28,5:1
20Failure of femoral head fixation: A cadaveric analysis of lag screw cut-out with the Gamma loocking nail and AO dynamic hip screw显示文摘Haynes RC Poll RG Miles AW 1997Injury1997,28,:1
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