Impacts and adaptation of the cropping systems to climate change in the Northeast Farming Region of China |
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| Affiliation: | 1. College of Agronomy, China Agricultural University; and Key Laboratory of Farming system, Ministry of Agriculture of China, Beijing, 100193, China;2. Department of Agroecology, Aarhus University, Blichers Alle 20, DK-8830 Tjele, Denmark;1. Chinese Academy of Meteorological Sciences, Beijing 10081, PR China;2. School of Natural Resources, University of Missouri, Columbia, Missouri 65211, USA;1. Key Laboratory of Environmental Change and Natural Disaster, Ministry of Education, Beijing Normal University, Beijing 100875, China;2. Faculty of Geographical Science, Academy of Disaster Reduction and Emergency Management, Beijing Normal University, Beijing 100875, China;3. Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China;1. Agricultural and Biological Engineering Department, University of Florida,, Gainesville, FL 32611-0500, United States;2. Agronomy Department, Kansas State University, United States;3. USDA-ARS, United States;4. ICRISAT, India;1. Center for Agricultural Water Research in China, China Agricultural University, Beijing 100083, China;2. National Field Scientific Observation and Research Station on Efficient Water Use of Oasis Agriculture in Wuwei of Gansu Province, Wuwei 733000, China;3. Department of Biological and Environmental Engineering, Riley-Robb Hall, Cornell University, Ithaca, NY, USA;4. The UWA Institute of Agriculture, The University of Western Australia, Perth, WA 6001, Australia |
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| Abstract: | The Northeast Farming Region of China (NFR) is a very important crop growing area, comprising seven sub-regions: Xing’anling (XA), Sanjiang (SJ), Northwest Songliao (NSL), Central Songliao (CSL), Southwest Songliao (SSL), Changbaishan (CB) and Liaodong (LD), which has been severely affected by extreme climate events and climatic change. Therefore, a set of expert survey has been done to identify current and project future climate limitations to crop production and explore appropriate adaptation measures in NFR. Droughts have been the largest limitation for maize (Zea mays L.) in NSL and SSL, and for soybean (Glycine max L. Merr.) in SSL. Chilling damage has been the largest limitation for rice (Oryza sativa L.) production in XA, SJ and CB. Projected climate change is expected to be beneficial for expanding the crop growing season, and to provide more suitable conditions for sowing and harvest. Autumn frost will occur later in most parts of NFR, and chilling damage will also decrease, particularly for rice production in XA and SJ. Drought and heat stress are expected to become more severe for maize and soybean production in most parts of NFR. Also, plant diseases, pests and weeds are considered to become more severe for crop production under climate change. Adaptation measures that have already been implemented in recent decades to cope with current climatic limitations include changes in timing of cultivation, variety choice, soil tillage practices, crop protection, irrigation and use of plastic film for soil cover. With the projected climate change and increasing risk of climatic extremes, additional adaptation measures will become relevant for sustaining and improving productivity of crops in NFR to ensure food security in China. |
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| Keywords: | Climate change Vulnerability Impact Adaptation Cropping systems The Northeast Farming Region of China |
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