1. Structural Development of Farms and Rural Areas (BSE), Leibniz Institute of Agricultural Development in Transition Economies (IAMO), Halle (Saale), Germany
2. Geography Department, Humboldt-Universität zu Berlin, Berlin, Germany
3. Environment and Production Technology Division (EPTD), International Food Policy Research Institute, Washington, DC, USA
4. Macro Agriculture Research Institute, College of Economics and Management, Huazhong Agricultural University, Wuhan, China
5. Humboldt-Universität zu Berlin, Integrative Research Institute on Transformations of Human-Environment Systems (IRI THESys), Berlin, Germany