Functions and Uses of Wetlands in Changing Savannah Environments

土地和水资源短缺目前正在推动东非萨凡纳环境中湿地的使用。牧民、传统的自给农和商业农场越来越多地争夺有限的土地和水资源。湿地与周围旱地稀树草原之间的转移在物质和社会两个层面上都在发生变化。国际利益干扰当地资源使用者的决策，湿地使用的变化往往与全球进程有关。生态系统崩溃现象和社会冲突日益集中在湿地上。耦合的生物物理和社会文化过程的动态被认为是确定的弹性，崩溃或最终重组的农业使用的湿地。跨学科的分项目将描述湿地生态系统在密集使用下的变化，并确定土地使用的阈值。在与分项目B1、B2和C3的密切合作下，将描述各种资源使用者面对不断变化的生物地球物理条件所采取的各种经济和社会战略，并将记录东非萨凡纳最初两个截然不同的湿地系统迅速展开的政治生态。

Land and water shortages are currently driving the use of wetland sites in East African savannah environments. Pastoralists, traditional subsistence farmers, and commercial farms increasingly compete for limited land and water resources. Transfers between wetlands and surrounding dryland savannahs are changing both on a material level and the social level. International interests interfere with the decision-making of local resource users and changes in wetland use are frequently linked to global processes. Ecosystem collapse phenomena and social conflicts increasingly centre on wetlands. The dynamics of the coupled biophysical and socio-cultural processes are seen to determine the resilience, collapse or eventually the reorganisation of agriculturally used wetlands. The interdisciplinary sub-project will describe wetland ecosystem changes under intensified use and establish threshold values for land use. In close collaboration with subprojects B1, B2 and C3 the diverse economic and social strategies of various resource users in the face of changing bio-geophysical conditions will be described, and the rapidly unfolding political ecology of initially two contrasting wetland systems in the East African savannah will be documented.