Benefits of increasing plant diversity in sustainable agroecosystems / Journal of Ecology
: Seongeun Lee
2019. 04. 03. (Wed.) - 12:00 ~ 13:30
Seminar room 418, Graduate School of International Agricultural Technology
6. Main contents
○Recent studies have revealed many potential benefits of increasing plant diversity in natural ecosystems, as well as agroecosystems and production forests. Plant diversity potentially provides a partial to complete substitute for many costly agricultural inputs.
○Diversification strategies include enhancing cap genetic diversity, mixed plantings, rotating crops, agroforestry and diversifying landscapes surrounding croplands.
○This paper reviews studies considering how increasing plant diversity increases top and forage yield, wood production, yield stability, and several regulations and supporting agroecosystem services.
○There is strong evidence that strategically increasing plant diversity increases crop and forage yield, wood production, yield stability, pollinators, weed suppression and pest suppression, whereas effects of diversification on soil nutrients and carbon remain poorly understood.
○The benefits of diversifying agroecosystems are expected to be greatest where the aims are to sustainably intensify production while reducing conventional inputs or to optimize both yields and ecosystem services. Over the next few decades, as monoculture yields continue to decelerate or decline for many crops, and as demand for ecosystem services continues to rise, diversification could become an essential tool for sustaining production and ecosystem services in croplands, range lands and production forests.