气候变化领域集成服务门户(CCPortal): Multiple cropping systems of the world and the potential for increasing cropping intensity

CCPortal

DOI	10.1016/j.gloenvcha.2020.102131
	Multiple cropping systems of the world and the potential for increasing cropping intensity
	Waha K.; Dietrich J.P.; Portmann F.T.; Siebert S.; Thornton P.K.; Bondeau A.; Herrero M.
发表日期	2020
ISSN	0959-3780
卷号	64
英文摘要	Multiple cropping, defined as harvesting more than once a year, is a widespread land management strategy in tropical and subtropical agriculture. It is a way of intensifying agricultural production and diversifying the crop mix for economic and environmental benefits. Here we present the first global gridded data set of multiple cropping systems and quantify the physical area of more than 200 systems, the global multiple cropping area and the potential for increasing cropping intensity. We use national and sub-national data on monthly crop-specific growing areas around the year 2000 (1998–2002) for 26 crop groups, global cropland extent and crop harvested areas to identify sequential cropping systems of two or three crops with non-overlapping growing seasons. We find multiple cropping systems on 135 million hectares (12% of global cropland) with 85 million hectares in irrigated agriculture. 34%, 13% and 10% of the rice, wheat and maize area, respectively are under multiple cropping, demonstrating the importance of such cropping systems for cereal production. Harvesting currently single cropped areas a second time could increase global harvested areas by 87–395 million hectares, which is about 45% lower than previous estimates. Some scenarios of intensification indicate that it could be enough land to avoid expanding physical cropland into other land uses but attainable intensification will depend on the local context and the crop yields attainable in the second cycle and its related environmental costs. © 2020 The Author(s)
英文关键词	Cropping intensity; Double cropping; Global crop production; Harvest frequency; Land sparing; Land use intensity
语种	英语
scopus关键词	agricultural intensification; agricultural production; crop yield; cropping practice; land management; subtropical region; tropical environment; Triticum aestivum; Zea mays
来源期刊	Global Environmental Change
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/142008
作者单位	CSIRO, Agriculture & Food, 306 Carmody Rd, St Lucia, QLD, Australia; Potsdam Institute for Climate Impact Research, Telegrafenberg A31, Potsdam, 14473, Germany; Goethe University Frankfurt, Institute of Physical Geography, Frankfurt am Main, 60438, Germany; University of Göttingen, Department of Crop Sciences, Von-Siebold-Strasse 8, Göttingen, 37075, Germany; CGIAR Research Program on Climate Change, Agriculture and Food Security (CCAFS), ILRI, PO Box 30709, Nairobi, 00100, Kenya; International Livestock Research Institute (ILRI), Nairobi, 00100, Kenya; Institut Mediterraneen de Biodiversite et d'Ecologie Marine et Continentale (IMBE), Aix-Marseille Universite, CNRS, IRD, Avignon Universite, France; University of Göttingen, Centre of Biodiversity and Sustainable Land Use, Büsgenweg 1, Göttingen, 37077, Germany
推荐引用方式 GB/T 7714	Waha K.,Dietrich J.P.,Portmann F.T.,et al. Multiple cropping systems of the world and the potential for increasing cropping intensity[J],2020,64.
APA	Waha K..,Dietrich J.P..,Portmann F.T..,Siebert S..,Thornton P.K..,...&Herrero M..(2020).Multiple cropping systems of the world and the potential for increasing cropping intensity.Global Environmental Change,64.
MLA	Waha K.,et al."Multiple cropping systems of the world and the potential for increasing cropping intensity".Global Environmental Change 64(2020).