| 词条 | Agricultural expansion |
| 释义 |
Agricultural expansion describes the growth of agricultural land (arable land, pastures, etc.) in the 21st century as a direct consequence of human overpopulation with an estimated 10 to 11 billion humans by end of this century and the required food and energy security. It is foreseen that most nonagricultural terrestrial and aquatic ecosystems of the world will be affected adversely (habitat loss, land degradation). The intensified food and biofuel production will particularly affect tropical regions. Most modern agriculture relies on intensive methods. Further expansion of the predominant farming types that rest on a small number of highly productive crops has led to a significant loss of biodiversity on a global scale already.[1] In the light of the already occurring and potential massive ecological effects, the need for sustainable practices is more urgent than ever. The FAO predicts that global arable land use will continue to grow from a {{convert | 1.58 | e9ha}} in 2014 to {{convert|1.66 |e9ha}} in 2050, with most of this growth projected to result from developing countries. At the same time, arable land use in developed countries is likely to continue its decline.[2] A well-known example of already ongoing agricultural expansion is the proliferation of palm oil production areas or the land conversion/deforestation for soy bean production in South America. Today's land grabbing activities are often a consequence of the strive for agricultural land by growing economies.[3] See also
References1. ^{{cite web | title=The expansion of modern agriculture and global biodiversity decline: an integrated assessment | website=Grantham Research Institute on Climate Change and the Environment | date=2018-02-19 | url=http://www.lse.ac.uk/GranthamInstitute/publication/running-with-the-red-queen-an-integrated-assessment-of-agricultural-land-expansion-and-global-biodiversity-decline/ | access-date=2018-02-19}} 2. ^{{cite web | title=Yields and Land Use in Agriculture | website=Our World in Data | url=https://ourworldindata.org/yields-and-land-use-in-agriculture | access-date=2018-02-19}} 3. ^{{cite journal | last=Ceddia | first=M. G. | last2=Bardsley | first2=N. O. | last3=Gomez-y-Paloma | first3=S. | last4=Sedlacek | first4=S. | title=Governance, agricultural intensification, and land sparing in tropical South America | journal=Proceedings of the National Academy of Sciences | publisher=Proceedings of the National Academy of Sciences | volume=111 | issue=20 | date=2014-05-05 | issn=0027-8424 | doi=10.1073/pnas.1317967111 | pages=7242–7247}}
1 : Agriculture |
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