Services performed by the ecosystem: forest remnants influence agricultural cultures' pollination and production
Services performed by the ecosystem: forest remnants influence agricultural cultures' pollination and production
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DOI：
10.1023/b:bioc.0000019402.51193.e8
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发表时间：
2004-06-01
影响因子：
3.4
通讯作者：
Coelho, FM
中科院分区：
文献类型：
--
作者：
De Marco, P;Coelho, FM
生态系统服务是生态系统的自然功能，其次可用于造福人类。最近的一项估计表明，生态系统服务平均每年相当于33万亿美元，其中授粉服务占1120亿美元。自然系统的改变和授粉物种的丧失导致许多作物的生产力下降。这项工作的目的是评估授粉作为农业生态服务，测试的假设，即森林残留物的存在，通过增加授粉增加咖啡农业生产力。这一论点是基于这样的假设，即巴西法律要求的保护原生森林的地区为当地农业生态系统提供了授粉者。水果生产进行了比较，在三个不同的种植制度：农林栽培，和传统的单作，并没有保存森林残留附近。不同农场的分支平均花产量不同，与种植方法无关。第一次开花比第二次大，占总产量的81 - 98%。森林片段附近的农场的产量增加了14.6%，这可能与授粉服务有关。
Ecosystem services are natural functions of an ecosystem that can be, secondarily, used for the benefit of humans. A recent estimate showed that ecosystem services equal, on average, 33 trillion dollars a year, with pollination being responsible for 112 billions dollars. The alteration of natural systems and the loss of pollinating species have caused a decrease in many crops' productivity. The objective of this work is to evaluate the pollination as an ecological service in agriculture, testing the hypothesis that the presence of forest remnants increases coffee agricultural productivity through an increase in pollination. This argument is based on the assumption that areas of preservation of native forest required by Brazilian law provide pollinators to local agroecosystems. Fruit production was compared among three different planting regimes: agrosilviculture, and conventional monoculture with and without preserved forest remnants nearby. The average flower production by branch was different among the farms and was not related to the planting methods. The first flowering was larger than the second, representing 81 - 98% of the flowers' total production. The farms near forest fragments had an increase of 14.6% in production that can be related to the pollinating services.