CLIMATE-CHANGE-INDUCED TEMPORAL VARIATION IN PRECIPITATION INCREASES NITROGEN LOSSES FROM INTENSIVE CROPPING SYSTEMS: ANALYSIS WITH A TOY MODEL

作     者：Peter MVITOUSEK Xinping CHEN Zhenling CUI Xuejun LIU Pamela AMATSON Ivan ORTIZ-MONASTERIO GPhilip ROBERTSON Fusuo ZHANG Peter M.VITOUSEK;Xinping CHEN;Zhenling CUI;Xuejun LIU;Pamela A.MATSON;Ivan ORTIZ-MONASTERIO;G.Philip ROBERTSON;Fusuo ZHANG

作者机构：Department of BiologyStanford UniversityStanfordCA 94305USA College of Resources and Environmentand Academy of Agricultural SciencesSouthwest UniversityChongqing 400716China College of Resources&Environmental SciencesChina Agricultural UniversityBeijing 100193China Department of Earth System ScienceStanford UniversityStanfordCA 94305USA International Maize and Wheat Improvement Center(CIMMYT)El BatanTexcoco 56237Mexico W.K.Kellogg Biological Stationand Department of PlantSoil and Microbial SciencesMichigan State UniversityHickory CornersMI 49060USA. 

出 版 物：《Frontiers of Agricultural Science and Engineering》 (农业科学与工程前沿（英文版）)

年 卷 期：2022年第9卷第3期

页      面：457-464页

学科分类：07[理学] 0713[理学-生态学] 

基　　金：supported by a US National Science Foundation grant(2027290)awarded to Stanford University 

主　　题：crop yield fertilizer timing nitrogen loss precipitation variability toy model 

摘      要：A simple‘toy’model of productivity and nitrogen and phosphorus cycling was used to evaluate how the increasing temporal variation in precipitation that is predicted(and observed)to occur as a consequence of greenhouse-gasinduced climate change will affect crop yields and losses of reactive N that can cause environmental damage and affect human *** model predicted that as temporal variability in precipitation increased it progressively reduced yields and increased losses of reactive N by disrupting the synchrony between N supply and plant N ***,increases in the temporal variation of precipitation increased the frequency of floods and *** of this model indicate that climate-change-driven increases in temporal variation in precipitation in rainfed agricultural ecosystems will make it difficult to sustain cropping systems that are both high-yielding and have small environmental and human-health footprints.