Agriculture

Yield gap

Biology

Yield (engineering)

Metallurgy

Materials science

China

Archaeology

Geography

Crop yield

Agronomy

Environmental science

Winter wheat

Agronomy Journal

Agronomy JournalVolume 110, Issue 1 p. 319-330 Crop Economics, Production & Management Winter Wheat Yield Gaps and Patterns in China Shuang Sun, Shuang Sun College of Resources and Environmental Sciences, China Agricultural Univ., No.2 Yuanmingyuan West Rd., Haidian District, Beijing, 100193 China Dep. of Agronomy, Kansas State Univ., 2108 Throckmorton Plant Sciences Center, Manhattan, KS, 66506Search for more papers by this authorXiaoguang Yang, Corresponding Author Xiaoguang Yang yangxg@cau.edu.cn College of Resources and Environmental Sciences, China Agricultural Univ., No.2 Yuanmingyuan West Rd., Haidian District, Beijing, 100193 ChinaCorresponding authors (yangxg@cau.edu.cn, xlin@ksu.edu).Search for more papers by this authorXiaomao Lin, Corresponding Author Xiaomao Lin xlin@ksu.edu Dep. of Agronomy, Kansas State Univ., 2108 Throckmorton Plant Sciences Center, Manhattan, KS, 66506Corresponding authors (yangxg@cau.edu.cn, xlin@ksu.edu).Search for more papers by this authorGretchen F. Sassenrath, Gretchen F. Sassenrath Dep. of Agronomy, Kansas State Univ., 2108 Throckmorton Plant Sciences Center, Manhattan, KS, 66506Search for more papers by this authorKenan Li, Kenan Li College of Air Traffic Management, Civil Aviation Univ. of China, No.2898 Jinbei Rd., Dongli District, Tianjin, 300300 ChinaSearch for more papers by this author Shuang Sun, Shuang Sun College of Resources and Environmental Sciences, China Agricultural Univ., No.2 Yuanmingyuan West Rd., Haidian District, Beijing, 100193 China Dep. of Agronomy, Kansas State Univ., 2108 Throckmorton Plant Sciences Center, Manhattan, KS, 66506Search for more papers by this authorXiaoguang Yang, Corresponding Author Xiaoguang Yang yangxg@cau.edu.cn College of Resources and Environmental Sciences, China Agricultural Univ., No.2 Yuanmingyuan West Rd., Haidian District, Beijing, 100193 ChinaCorresponding authors (yangxg@cau.edu.cn, xlin@ksu.edu).Search for more papers by this authorXiaomao Lin, Corresponding Author Xiaomao Lin xlin@ksu.edu Dep. of Agronomy, Kansas State Univ., 2108 Throckmorton Plant Sciences Center, Manhattan, KS, 66506Corresponding authors (yangxg@cau.edu.cn, xlin@ksu.edu).Search for more papers by this authorGretchen F. Sassenrath, Gretchen F. Sassenrath Dep. of Agronomy, Kansas State Univ., 2108 Throckmorton Plant Sciences Center, Manhattan, KS, 66506Search for more papers by this authorKenan Li, Kenan Li College of Air Traffic Management, Civil Aviation Univ. of China, No.2898 Jinbei Rd., Dongli District, Tianjin, 300300 ChinaSearch for more papers by this author First published: 01 January 2018 https://doi.org/10.2134/agronj2017.07.0417Citations: 23 All rights reserved Supplemental material available online Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat Abstract Core Ideas Based on yield gap analysis, wheat yield can be improved significantly in China. Both actual and potential wheat yields showed considerable spatial variability. Winter wheat yields increased in 53% of the counties in China. Nearly half of the counties experienced impaired wheat yields. Declining solar radiation and increasing temperature reduce wheat yield. Wheat (Triticum aestivum L.) yield stagnation has been reported in some regions of the world. China is the largest producer of wheat across the globe, but the pattern of its wheat yield stagnation remains poorly addressed. Here, our goal is to examine the temporal trends and spatial patterns of wheat yields along with possible causes based on a comprehensive assessment of winter wheat yield throughout China over the 31-yr period from 1980 to 2010. Combined with the Agricultural Production Systems Simulator (APSIM) wheat model, we assessed the winter wheat yield gaps and patterns in 1414 counties and at five physiogeographic regional scales across China to ascertain the driving factors of yield variations. Wheat yields increased in 53% of the 1414 counties, but the remaining counties experienced yields that never improved, stagnated, or collapsed from 1980 to 2010. The yield gap analysis showed that actual yields represented only 59% of the national average yield potential, indicating a substantial opportunity to improve winter wheat yields. Relatively larger yield gaps were observed in the northern China Plain (NC, 47%) and in southwestern China (SW, 45%). Although the yield gaps in these regions were accompanied by significantly progressive uptrends of actual yields, our results suggest that agronomic management could be further improved. Moreover, underperforming regions could potentially benefit from new investments and strategies to reliably increase actual yields and reverse trends in stagnation in winter wheat performance. Citing Literature Supporting Information Filename Description agj2agronj2017070417-sup-0001-S1.pdfPDF document, 275.6 KB Supplementary Material Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article. Volume110, Issue1January–February 2018Pages 319-330 RelatedInformation

Winter Wheat Yield Gaps and Patterns in China