Global impacts of future cropland expansion and intensification on agricultural markets and biodiversity

被引:456
作者
Zabel, Florian [1 ]
Delzeit, Ruth [2 ]
Schneider, Julia M. [1 ]
Seppelt, Ralf [3 ,4 ,5 ]
Mauser, Wolfram [1 ]
Vaclavik, Tomas [3 ,6 ,7 ]
机构
[1] Ludwig Maximilians Univ Munchen, Dept Geog, D-80333 Munich, Germany
[2] Kiel Inst World Econ, D-24105 Kiel, Germany
[3] UFZ Helmholtz Ctr Environm Res, Dept Computat Landscape Ecol, D-04318 Leipzig, Germany
[4] Martin Luther Univ Halle Wittenberg, Inst Geosci & Geog, D-06099 Halle, Saale, Germany
[5] iDiv German Ctr Integrat Biodivers Res, D-04103 Leipzig, Germany
[6] Palacky Univ Olomouc, Dept Ecol & Environm Sci, Fac Sci, Olomouc 78371, Czech Republic
[7] Czech Acad Sci CzechGlobe, Global Change Res Inst, Brno 60300, Czech Republic
关键词
LAND-USE INTENSITY; FARMLAND BIODIVERSITY; SPECIES RICHNESS; CLIMATE-CHANGE; ECOSYSTEM SERVICES; FOOD-PRODUCTION; TRADE-OFFS; CONSERVATION; HOTSPOTS; DIVERSITY;
D O I
10.1038/s41467-019-10775-z
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
With rising demand for biomass, cropland expansion and intensification represent the main strategies to boost agricultural production, but are also major drivers of biodiversity decline. We investigate the consequences of attaining equal global production gains by 2030, either by cropland expansion or intensification, and analyse their impacts on agricultural markets and biodiversity. We find that both scenarios lead to lower crop prices across the world, even in regions where production decreases. Cropland expansion mostly affects biodiversity hotspots in Central and South America, while cropland intensification threatens biodiversity especially in Sub-Saharan Africa, India and China. Our results suggest that production gains will occur at the costs of biodiversity predominantly in developing tropical regions, while Europe and North America benefit from lower world market prices without putting their own biodiversity at risk. By identifying hotspots of potential future conflicts, we demonstrate where conservation prioritization is needed to balance agricultural production with conservation goals.
引用
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页数:10
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