Beck, E; Bendix, J; Silva, B; Rollenbeck, R; Lehnert, L; Hamer, U; Potthast, K; Tischer, A; Roos, K: Future provisioning Services: Repasturisation of Abandonded Pastures, Problems and Pasture Management. In: Bendix J., Beck E., Bräuning A., Makeschin F., Mosandl R., Scheu S. and Wilcke W. (eds): Ecosystem Services, Biodiversity and Environmental Change in a Tropical Mountain Ecosystem of South Ecuador., Ecological Studies, Springer Berlin, Heidelberg, New York, Vol. 221 (2013), doi:10.1007/978-3-642-38137-9_26
More and more pastures in the Rio San Francisco valley were and still are abandoned as a result of ecologically unbalanced pasture management, which promotes the invasion of weeds like bracken. Under the common pasture management, using fire as an agricultural tool, bracken by virtue of several ecophysiological traits can outcompete the grass. Competition of both species was investigated by the growth model SoBraCoMo. Vegetation development after burning of a bracken-infected pasture was followed by automated monitoring, using a balloon. To rehabilitate abandoned pastures, a three-step experiment was performed. Bracken control was followed by planting of the pasture grass Setaria sphacelata. Subsequently, different strategies for pasture management were examined. Fertilisation was crucial for the achievement of reasonable yields as well as for bracken suppression. Additionally, the prevention of negative nutrient balances of active pastures was investigated in an extended pasture fertilisation experiment (FERPAST). A specific combination of N and P is necessary to maintain soil productivity and to increase fodder quality.

last modified 2020-12-03