Science should provide solutions for societal transformations toward sustainability in the face of global environmental change. Land system science, as a systemic science focused on complex socio-ecological interactions around land use and associated trade-offs and synergies, is well placed to contribute to this agenda. This goal requires a stronger engagement with the normative implications of scientific practice, research topics, questions and results. We identify concerns as well as three concrete steps for land system science to more deeply contribute in normative issues. In particular, we encourage land system scientists to discuss explicitly the normative questions, values, perspectives and assumptions already present in our research, as well as to identify key normative research questions to contribute to societal transformations.

科学应该为面对全球环境变化的社会向可持续发展的转型提供解决方案。土地系统科学作为一种系统科学，专注于围绕土地使用以及相关权衡和协同作用的复杂社会生态相互作用，因此很适合为这一议程做出贡献。这个目标需要更深入地参与科学实践，研究主题，问题和结果的规范含义。我们确定了关注点，并提出了三个更具体的步骤来使土地系统科学更深入地为规范问题做出贡献。特别是，我们鼓励土地系统科学家明确讨论我们研究中已经存在的规范性问题，价值观，观点和假设，并确定有助于社会转型的关键规范性研究问题。