Deposition of litter and nutrients in leaves and twigs in different plant communities of northeastern Mexico

查看全文 作　　者：Humberto González-[1]Rodríguez;Roque Gonzalo Ramírez-[2]Lozano;Israel Cantú-[1]Silva;Marco Vinicio Gómez-[3]Meza;Eduardo Estrada-[1]Castillón;José Ramón [4]Arévalo

机构地区：[1]Facultad de Ciencias Forestales, Universidad Autdnoma deNuevo Ledn, Carr. Nac. No 85, km 145, 67700 Linares,Nuevo Ledn, Mexico;[2]Facultad de Ciencias Bioldgicas, Universidad Autdnoma deNuevo Ledn, Ave. Universidad S/N, Cd. Universitaria,66451 San Nicolfis de los Garza, Nuevo Ledn, Mexico;[3]Facultad de Economla, Universidad Autdnoma de NuevoLedn, Monterrey, Nuevo Ledn, Mexico;[4]Departamento de Botanica, Ecologiay Fisiologfa Vegetal Facultad de Ciencias, Universidad de La Laguna,Canary Islands, Spain

出　　处：《Journal of Forestry Research》索引2018年第29卷第5期,共8页

基　　金：supported by the PAICYT Grant CT259-15;National Science and Technological Council(Grant250732) 摘　　要：Studies on litterfall and decomposition provide estimations of decomposition rates of different ecosystems.This is key information to understanding ecosystem dynamics and changes in a scenario of global warming.The objective of this research was to assess litterfall production,the potential deposition of macro and micronutrients through leaf and twig fall as well as macronutrient—use efficiency in three forest ecosystems at different altitudes: a pine forest mixed with deciduous species(S1); a Quercus spp.forest(S2); and,a Tamaulipan thornscrub forest(S3).Total annual litterfall deposition was 594,742 and 533 g m^(-2) for S1,S2 and S3.Leaf litter was higher (68%) than twigs(18%),reproductive structures(8%) or miscellaneous material(6%).Micronutrient leaf deposition was higher for Fe followed by Mn,Zn and Cu.Macronutrient leaf deposition was higher for Ca followed by K,Mg and P.Even though P deposition in leaves and twigs was lower than other macronutrients,its nutrient use efficiency was higher than Ca,Mg or K.Altitude and species composition determine litter and nutrient deposition,with higher values at mid-altitudes(550 m).Altitude is an important factor to consider when analyzing litter production as well as nutrient deposition as shown in this study.Litter production and nutrient deposition are expected to change in a scenario of global warming. 关键词：枝条垃圾叶子墨西哥森林生态系统生态系统动力学社区植物

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Deposition of litter and nutrients in leaves and twigs in different plant communities of northeastern Mexico

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