Dear colleagues, We organized a session for the XXV World Congress of the International Union of Forest Research Organizations (IUFRO2019) to be held 29 Sept – 5 Oct 2019 at Curitiba, Brazil. Please consider submitting an oral or poster presentation for the session E8a Forest management practices and the responses of soil carbon, water, nutrients and their interactions. Abstracts for presentations can be submitted until 31 Dec 2018 at http://iufro2019.com/ You will need to be registered for IUFRO2019 to submit an abstract, but you do not need to pay until later. You will also need to indicate the session of preference. Seehttps://iufro2019.com/abstracts-submission/ for details on abstract submission. Information on all IUFRO 2019 sessions can be found at http://iufro2019.com/wp-content/uploads/2018/10/sessions-english-portuguese… . IUFRO will have financial assistance available for certain participants (see https://iufro2019.com/scientist-assistance-program-sap/). For more information http://iufro2019.com/ Session description E8a Forest management practices and the responses of soil carbon, water, nutrients and their interactions Forests are main terrestrial ecosystems, and play an important role in protecting biodiversity and regulating global carbon cycling and various other ecological processes such as hydrology and nutrient dynamics. Forest management practices such as harvesting, thinning, mixedwood management, riparian vegetation management, road construction can greatly influence those processes and consequently their associated ecological functions and services. Understanding the responses of these critical ecological processes (biodiversity, carbon, water and nutrients) and their interactions to various forest management practices is essential for designing sustaibale forest management strategies. In the past several decades, research progress has been grealy made in the proposed subject, particularly in the interactions of biodiversity, soil carbon, water and nutrients. For examples, how forest management practices may affect forest carbon and water coupling? How biodiversity regulates ecosystem functions and what are the underlining mechanisms? The proposed session is very timely, and will cover a wide range of topics in relations to forest management practices and their effects on critical ecological processes and interactions. It is highly relevant to policy makers in making decisions about sustainable forest management with consideration of protecting soil, water, biodiversity and their interactions. This session involves Division 8, the Task Force of Forests, Soil and Water Interactions and several non-IUFRO individuals or organizations. E8a Práticas de Manejo Florestal e as Respostas do Carbono do Solo, Água, Nutrientes e Suas Interações As florestas são ecossistemas terrestres essenciais e desempenham um papel importante na proteção da biodiversidade e na regulação do ciclo de carbono global e vários outros processos ecológicos, como hidrologia e dinâmica de nutrientes. Práticas de manejo florestal tais como colheita, desbaste, manejo de povoamentos mistos, manejo de vegetação ciliar, construção de estradas podem influenciar muito esses processos e consequentemente suas funções e serviços ecológicos associados. Compreender as respostas desses processos ecológicos críticos (biodiversidade, carbono, água e nutrientes) e suas interações com as várias práticas de manejo florestal é essencial para a elaboração de estratégias sustentáveis de manejo florestal. Por exemplo, como as práticas de manejo florestal podem afetar a ligação entre carbono e água na floresta? Como a biodiversidade regula as funções dos ecossistemas e quais são os mecanismos que sobressaem? Esta sessão abrangerá uma ampla gama de tópicos relacionados às práticas de manejo florestal e seus efeitos em processos e interações ecológicas críticas. Best regards Shirong Liu Deputy coordinator of Division 8