Future Provisioning Services: Repasturisation of Abandoned Pastures, Problems, and Pasture Management

Future Provisioning Services: Repasturisation of Abandoned Pastures, Problems, and Pasture Management
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未来供应服务:废弃牧场的恢复、问题和牧场管理

DOI:
10.1007/978-3-642-38137-9_26
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发表时间:
2013
期刊:
影响因子:
--
通讯作者:
Roos K
Roos K
中科院分区:
--
文献类型:
--
作者:
Beck E;Bendix J;Silva B;Rollenbeck R;Lehnert L;Hamer U;Potthast K;Tischer A;Roos K

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由于生态不平衡的牧场管理,促进了欧洲蕨等杂草的入侵,里约圣弗朗西斯科山谷越来越多的牧场过去和现在都被遗弃。在一般的放牧管理下,以火为农具,蕨菜凭借其生理生态特性,可以在竞争中战胜禾本科牧草。两个物种的竞争进行了研究的增长模型SoBraCoMo。植被发展燃烧后的蕨菜感染的牧场进行了自动化监测,使用气球。为了恢复被遗弃的牧场,进行了三步实验。在控制蕨类植物之后,种植牧场草非洲狗尾草。随后,研究了牧场管理的不同策略。施肥是实现合理产量以及抑制蕨菜生长的关键。此外,积极牧场的负养分平衡的预防进行了研究,在一个扩展的牧场施肥实验(FERPAST)。氮和磷的特定组合对于保持土壤生产力和提高饲料质量是必要的。
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 modelSoBraCoMo. 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 grassSetaria 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.
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