caa a22 4500 445800208 CHVBK 20180317145138.0 cr unu---uuuuu 170323e20111201xx s 000 0 eng 10.1007/s00704-011-0440-x doi (NATIONALLICENCE)springer-10.1007/s00704-011-0440-x Characterizing spatial and temporal variability of crop yield caused by climate and irrigation in the North China Plain [Elektronische Daten] [Chao Chen, Walter Baethgen, Enli Wang, Qiang Yu] Grain yields of wheat and maize were obtained from national statistics and simulated with an agricultural system model to investigate the effects of historical climate variability and irrigation on crop yield in the North China Plain (NCP). Both observed and simulated yields showed large temporal and spatial variability due to variations in climate and irrigation supply. Wheat yield under full irrigation (FI) was 8t ha−1 or higher in 80% of seasons in the north, it ranged from 7 to 10t ha−1 in 90% of seasons in central NCP, and less than 9t ha−1 in 85% of seasons in the south. Reduced irrigation resulted in increased crop yield variability. Wheat yield under supplemental irrigation, i.e., to meet only 50% of irrigation water requirement [supplemental irrigation (SI)] ranged from 2.7 to 8.8t ha−1 with the maximum frequency of seasons having the range of 4-6t ha−1 in the north, 4-7t ha−1 in central NCP, and 5-8t ha−1 in the south. Wheat yield under no irrigation (NI) was lower than 1t ha−1 in about 50% of seasons. Considering the NCP as a whole, simulated maize yield under FI ranged from 3.9 to 11.8t ha−1 with similar frequency distribution in the range of 6-11.8t ha−1 with the interval of 2t ha−1. It ranged from 0 to 11.8t ha−1, uniformly distributed into the range of 4-10t ha−1 under SI, and NI. The results give an insight into the levels of regional crop production affected by climate and water management strategies. Springer-Verlag, 2011 Chen Chao International Research Institute for Climate and Society, The Earth Institute at Columbia University, Palisades, NY, USA aut Baethgen Walter International Research Institute for Climate and Society, The Earth Institute at Columbia University, Palisades, NY, USA aut Wang Enli CSIRO Land and Water/APSRU, GPO Box1666, ACT 2601, Canberra, Australia aut Yu Qiang Plant Functional Biology and Climate Change Cluster, School of the Environment, University of Technology, Broadway 2007 NSW, PO Box123, Sydney, Australia aut Theoretical and Applied Climatology Springer Vienna 106/3-4(2011-12-01), 365-381 0177-798X 106:3-4<365 2011 106 704 https://doi.org/10.1007/s00704-011-0440-x text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00704-011-0440-x text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Chen Chao International Research Institute for Climate and Society, The Earth Institute at Columbia University, Palisades, NY, USA aut NATIONALLICENCE 700 1- Baethgen Walter International Research Institute for Climate and Society, The Earth Institute at Columbia University, Palisades, NY, USA aut NATIONALLICENCE 700 1- Wang Enli CSIRO Land and Water/APSRU, GPO Box1666, ACT 2601, Canberra, Australia aut NATIONALLICENCE 700 1- Yu Qiang Plant Functional Biology and Climate Change Cluster, School of the Environment, University of Technology, Broadway 2007 NSW, PO Box123, Sydney, Australia aut NATIONALLICENCE 773 0- Theoretical and Applied Climatology Springer Vienna 106/3-4(2011-12-01), 365-381 0177-798X 106:3-4<365 2011 106 704 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer