Low yield gap of winter wheat in the North China Plain

文献类型： 外文期刊

第一作者： Li, Kenan

作者： Li, Kenan;Yang, Xiaoguang;Liu, Zhijuan;Lu, Shuo;Zhang, Tianyi;Liu, Yuan

作者机构：

关键词： Winter wheat;Yield gap;Yield stagnation;Climate change;APSIM-wheat model;The North China Plain

期刊名称：EUROPEAN JOURNAL OF AGRONOMY （ 影响因子：5.124； 五年影响因子：5.567 ）

ISSN：

年卷期：

页码：

收录情况： SCI

摘要： The yield gap (YG) between the potential yields (Yp) and the average on-farm yields (Ya) is an indicator of the potential improvement for crop production. Understanding how large the current gap is and how this gap has changed over the past few decades is essential for increasing wheat production to meet increased food demand in China. This paper describes a study conducted using an APSIM-Wheat model and farm-level crop yield to analyze the spatio-temporal distribution of the yield gap of winter wheat from 1981 to 2010 in the North China Plain. Nine varieties were calibrated and evaluated based on the data from 16 agro-meteorological experimental sites and then potential yields were estimated considering cultivar replacement. In addition, a trend pattern analysis of on-farm yields for the period 1981-2010 was conducted. Results revealed an estimated yield gap across the entire North China Plain region of 1140-6810 kg ha(-1), with a weight average of 3630 kg ha(-1) in 1981-2010. Expressed as a relative yield (yield gap % of potential yields), the range was 15-80%, and the weight average was 45%. Despite the negative effects of increasing temperature and decreasing radiation, the potential yields significantly increased by 45 kg ha-1 per year due to cultivar improvement. On-farm yields increased even more notably because of new cultivar selection, increased fertilizer application and other management improvements, but were stagnating in 32.3% of wheat areas, located mainly in Hebei province, Shandong province, Beijing and Tianjin. The improvement of on-farm yields have substantially contributed to yield gap spatio-temporal variation. As a result, the yield gap decreased from 4200 kg ha(-1) (56%) in 1981-1990 to 3000 kg ha(-1) (35%) in 2001-2010 at a rate of 69 kg ha(-1) per year. However, yields stagnation will expand to the northern Henan province without cultivar potential productivity improving, where yield gap was close to or less than 20% of the potential yields and proved difficult to reduce. To further improve the total production of winter wheat in the coming decades, efforts should be paid to break the potential ceiling and reduce the yield gap by breeding higher yield variety and introduction of new agricultural technology

分类号： S3

  • 相关文献

[1]PREDICTION OF CHANGE OF WINTER WHEAT IN NORTH CHINA BY USING IPCC-AR4 MODEL DATA. Zhang Mingwei,Fan Jinlong,Li Guicai,Deng Hui,Ren Jianqiang,Chen Zhongxin,Deng Hui,Ren Jianqiang,Chen Zhongxin. 2011

[2]Simulated impact of elevated CO2, temperature, and precipitation on the winter wheat yield in the North China Plain. Yang, Peng,Wu, Wenbin,Li, Zhengguo,Yu, Qiangyi,Liu, Zhenhuan,Tang, Pengqin,Zha, Yan,Tang, Huajun,Yang, Peng,Kimoto, Masahide,Inatsu, Masaru. 2014

[3]Effect of optimal irrigation, Different fertilization, And reduced tillage on soil organic carbon storage and crop yields in the North China Plain. Zhao, Xiaoning,Stahr, Karl,Hu, Kelin,Ma, Yongliang,Li, Kejiang,Wang, Pu.

[4]Potential and actual yields of potato at different elevations and in different seasons in subtropical Southwest China. Struik, PC,Wang, J,Zhang, X. 1998

[5]Assessing the harvested area gap in China. Yu, Qiangyi,Wu, Wenbin,Li, Zhengguo,Yang, Peng,Zhou, Qingbo,Tang, Huajun,Yu, Qiangyi,van Vliet, Jasper,Verburg, Peter H.,You, Liangzhi,Zhu, Tingju,Liu, Zhenhuan.

[6]Yield Gaps, Indigenous Nutrient Supply, and Nutrient Use Efficiency of Wheat in China. He, Ping,Liu, Xiaoyan,Jin, Jiyun,Zhou, Wei,Sulewski, Gavin,Phillips, Steve.

[7]Quantification of yield gap and nutrient use efficiency of irrigated rice in China. Xu, Xinpeng,He, Ping,Zhao, Shicheng,Qiu, Shaojun,Zhou, Wei,Xu, Xinpeng,He, Ping,Johnston, Adrian M..

[8]Narrowing yield gaps and increasing nutrient use efficiencies using the Nutrient Expert system for maize in Northeast China. Xu, Xinpeng,He, Ping,Zhou, Wei,He, Ping,Pampolino, Mirasol F.,Li, Yuying,Liu, Shuangquan,Xie, Jiagui,Hou, Yunpeng.

[9]An analysis of methodological and spatial differences in global cropping systems models and maps. Anderson, Weston,You, Liangzhi,Wood-Sichra, Ulrike,You, Liangzhi,Wu, Wenbin,Wood, Stanley.

[10]Comparison of greenhouse gas emissions of chemical fertilizer types in China. Zhan-biao Wang,Jing Chen,Shu-chun Mao,Ying-chun Han,Fu Chen,Li-feng Zhang,Ya-bing Li,Cun-dong Li.

[11]Food Security, Food Prices and Climate Change in China: a Dynamic Panel Data Analysis. Wang, Jintian. 2010

[12]Climate change and glacier area variations in China during the past half century. Tian Hong-zhen,He Ying-bin,Tian Hong-zhen,Yang Tai-bao,Lv Hui,Li Cheng-xiu,Li Cheng-xiu,He Ying-bin. 2016

[13]NDVI-Based Long-Term Vegetation Dynamics and Its Response to Climatic Change in the Mongolian Plateau. Bao, Gang,Zhou, Yi,Bao, Gang,Bao, Yuhai,Qin, Zhihao,Li, Wenjuan,Sanjjav, Amarjargal. 2014

[14]Evaluation of changes in ecological security in China's Qinghai Lake Basin from 2000 to 2013 and the relationship to land use and climate change. Wang, Hong,Li, Xiaobing,Yu, Feng,Long, Huiling. 2014

[15]Sustainable bioenergy production with little carbon debt in the Loess Plateau of China. Liu, Wei,Sang, Tao,Peng, Cheng,Chen, Zhifen,Liu, Yue,Yan, Juan,Li, Jianqiang,Sang, Tao,Sang, Tao. 2016

[16]Progressive and active adaptations of cropping system to climate change in Northeast China. Chen, Changqing,Qian, Chunrong,Zhang, Weijian,Deng, Aixing,Zhang, Weijian. 2012

[17]Effects of climate change and cultivar on summer maize phenology. Chen, F.,Wang, Zh.,Chen, J.,Li, Y.,Wang, Zh.,Li, C.,Zhang, L.. 2016

[18]Simulating the Impacts of Global Warming on Wheat in China Using a Large Area Crop Model. Li Sanai,Li Sanai,Wheeler, Tim,Challinor, Andrew,Lin Erda,Xu Yinlong,Ju Hui. 2010

[19]Spatiotemporal variation of drought characteristics in the Huang-Huai-Hai Plain, China under the climate change scenario. Li Xiang-xiang,Ju Hui,Yan Chang-rong,Liu Qin,Li Xiang-xiang,Garre, Sarah,Liu Qin,Batchelor, William D.. 2017

[20]Application of GIS technology to build climatic scene in 2036 and 2056 in China. Xu, B,Chen, ZX,Qin, ZH,Liu, J,Yang, XC,Xin, XP. 2005

作者其他论文 更多>>

微信小程序