Shifts in national land use and food production in Great Britain after a climate tipping point

Shifts in national land use and food production in Great Britain after a climate tipping point
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气候临界点后英国国家土地利用和粮食生产的变化

DOI:
10.1038/s43016-019-0011-3
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发表时间:
2020
期刊:
影响因子:
23.2
通讯作者:
Ritchie P
Ritchie P
中科院分区:
农林科学1区
文献类型:
--
作者:
Ritchie P

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预计气候变化将影响农业用地。温度和水供应的稳定累积变化可以改变不同农业活动的相对盈利能力,并促进土地利用的变化。还有可能出现高影响的“气候临界点”,在那里气候会发生突然的非线性变化——例如大西洋经向翻转环流(AMOC)的潜在崩溃。在这里,使用来自英国的数据,我们开发了一种方法来分析气候临界点对土地利用和农业经济成果的影响。我们表明,这样一个临界点的经济/土地利用影响可能包括可耕地农业的广泛停止和农业产出的损失,这比没有AMOC崩溃的气候变化的影响要大一个数量级。AMOC崩溃对农业的影响可以通过诸如广泛灌溉等技术调整来改善,但在这种情况下所需的水量和成本似乎令人望而却步。
Climate change is expected to impact agricultural land use. Steadily accumulating changes in temperature and water availability can alter the relative profitability of different farming activities and promote land use changes. There is also potential for high-impact ‘climate tipping points’ where abrupt, non-linear change in climate occurs - such as the potential collapse of the Atlantic Meridional Overturning Circulation (AMOC). Here, using data from Great Britain, we develop a methodology to analyse the impacts of a climate tipping point on land use and economic outcomes for agriculture. We show that economic/land use impacts of such a tipping point are likely to include widespread cessation of arable farming with losses of agricultural output, an order of magnitude larger than the impacts of climate change without an AMOC collapse. The agricultural effects of AMOC collapse could be ameliorated by technological adaptations such as widespread irrigation, but the amount of water required and the costs appear prohibitive in this instance.
DOI: 10.1038/srep14877
发表时间: 2015-10-06
期刊: Scientific reports
影响因子: 4.6
作者:
Drijfhout S
通讯作者: Drijfhout S
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发表时间: 2000
期刊: The Geographical Journal
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DOI: 10.1126/sciadv.1600842
发表时间: 2016-10
期刊: Science advances
影响因子: 13.6
作者:
Diamond SE;Nichols LM;Pelini SL;Penick CA;Barber GW;Cahan SH;Dunn RR;Ellison AM;Sanders NJ;Gotelli NJ
通讯作者: Gotelli NJ