Vice Directors

Name: Zhao Xu

Title: Professor

Work Email: zhaoxu@issas.ac.cn

Work Phone: 025-86881534

(1)Agricultural Ecosystem

(2)Soil Fertility

(3)Improved NPC Cycling

(4)Sustainable Production

(1)2006 – 2009, Ph.D., Plant Nutrition, Institute of Soil Science, CAS, Nanjing, China

(2)2003 – 2006, Master, Plant Nutrition, Northwest A&F University, Yangling, China 

(3)1999 – 2003, Bachelor, Agricultural Resource and Environment, Henan Agricultural University, Zhengzhou, China

(1)2017 ― Present, Professor, Changshu National Agro-ecosystem Observation and Research Station, Institute of Soil Science, CAS, China

(2)2015-2016, Visiting Scholar, University of Illinois at Urbana-Champaign, USA

(3)2011 ― 2017, Associate Professor, Institute of Soil Science, CAS, China 

(4)2009― 2011, Assistant Professor, Institute of Soil Science, CAS, China

(1)2016 – Present, Member, Nitrogen Working Groups, Soil Science Society of China

(2)2019- Present,  Member, Editor Committee of Soils, ISSN 0553-9829 

(1)Variable response of soil organic carbon sequestration and its reasons in different soils to successive straw biochar amendments, 2023.01-2026.12, National Natural Science Foundation of China (PI)

(2)Soil denitrification in paddy soils treated with long-term successive straw biochar application, 2018.01-2021.12, National Natural Science Foundation of China (PI)

(3)Fate and loss processes of N fertilizer in rice paddy and their regulation, 2017.07-2021.12, the National Key R&D Program of China (PI)

(4)Effects of crop-straw-derived biochar on N fate in Chinese Agroecosystem, 2012.01-2016.12,  National Natural Science Foundation of China (PI)

(1)Tian Yuhua, Yin Bin, Zeng Ke, Zhao Xu. An Equipment for Observing Rice Canopy Uptake of Atmospheric Reactive Nitrogen: ZL202120780243.7, 2021-11-10

(2)Zhou Wei, Yan Xiaoyuan, Zhao Xu, Li Xiaoming. A Method for Determining Denitrification N2 From Flooded Soils and Sediments: ZL201922502696.9, 2019-12-31

(3)Zhao Xu, Wang Shenqiang, Xing Guangxi, Shi Weiming, Yang Linzhang, Zhang Zonghou. A Field Experiment Simulating system and Its Construction Method: ZL201110076152.6, 2011-03-29

(1)Yuhua Tian, Xu Zhao*, Bin Yin, Xiaoyuan Yan. Delaying Tillering Nitrogen Topdressing until the Midtillering Phase Improves Nitrogen Use Efficiency and Reduces Ammonia Emission via Rice Canopy Recapture. European Journal of Agronomy, 2023, 142, 126657. https://doi.org/10.1016/j.eja.2022.126657

(2)Yuhua Tian, Xu Zhao*, Bin Yin, Ke Zeng, Xiaoyuan Yan. Direct Canopy Uptake of Atmospheric Reactive Nitrogen: A Significant Pathway for Airborne Nitrogen Input into Rice Paddy Ecosystems. Journal of Agricultural and Food Chemistry, https://doi.org/10.1021/acs.jafc.2c04467

(3)Yazhen Shen, Baichun Wang, Sixi Zhu, Wei Xie, Shenqiang Wang, Xu Zhao*. Single application of a new polymer-coated urea improves yield while mitigates environmental issues associated with winter wheat grown in rice paddy soil. Field Crops Research, 2022(285), 108592. https://doi.org/10.1016/j.fcr.2022.108592.

(4)Siyuan Cai, Xu Zhao*, Xiaoyuan Yan*. Effects of climate and soil properties on regional differences in nitrogen use efficiency and reactive nitrogen losses in rice. Environmental Research Letters, 2022,17 (5), 054039. https://doi.org/10.1088/1748-9326/ac6a6b.

(5)He L.L., Xu Y.X., Li J., Zhang Y.Y., Liu Y.X., Lyu H.H., Wang Y.Y., Tang X., Wang S.Q., Zhao X.*, Yang S.M.*. Biochar mitigated more N-related global warming potential in rice season than that in wheat season: An investigation from ten-year biochar-amended rice-wheat cropping system of China. Science of the Total Environment, 2022(821), 153344, http://dx.doi.org/10.1016/j.scitotenv.2022.153344.

(6)Wang B.C., Shen Y.Z., Xie W.，Zhu S.X., Zhao X.*, Wang S.Q. FeIII-tannic acid-modified waterborne polymer-coated urea has agronomic, environmental and economic benefits in flooded rice paddy. Journal of Cleaner Production, 2021(321), 129013, https://doi.org/10.1016/j.jclepro.2021.129013.

(7)Xie Y.X.*, Dong C., Chen Z.Y., Liu Y.J., Zhang Y.Y., Gou P.X., Zhao X.*, Ma D.Y., Kang G.Z., Wang C.Y., Zhu Y.J., Guo T.C. Successive biochar amendment affected crop yield by regulating soil nitrogen functional microbes in wheat-maize rotation farmland. Environmental Research, 2021(194),110671, https://doi.org/10.1016/j.envres.2020.110671.

(8)Bi Y.C., Kuzyakov, Y, Cai S.Y., Zhao X.* Accumulation of organic compounds in paddy soils after biochar application is controlled by iron hydroxides. Science of the Total Environment, 2021(764),144300, https://doi.org/10.1016/j.scitotenv.2020.144300.

(9)He L.L., Zhao J., Yang S.M., Zhou H.*, Wang S.Q., Zhao X.*, Xing G.X. Successive biochar amendment improves soil productivity and aggregate microstructure of a red soil in a five-year wheat-millet rotation pot trial. Geoderma, 2020(376),114570, https://doi.org/10.1016/j.geoderma.2020.114570.

(10)Bi Y.C., Cai S.Y., Wang Y., Zhao X.*, Wang S. Q., Xing G.X., Zhu Z.L. Structural and microbial evidence for different soil carbon sequestration after four-year successive biochar application in two different paddy soils. Chemosphere, 2020, (254), 126881, https://doi.org/10.1016/j.chemosphere.2020.126881.

(11)Liu Y.J., Bi Y.C., Xie Y.X.*, Zhao X. *, He D.X., Wang S.Q., Wang C.Y., Guo T.C., Xing G.X. Successive straw biochar amendments reduce nitrous oxide emissions but do not improve the net ecosystem economic benefit in an alkaline sandy loam under a wheat-maize cropping system. Land Degradation & Development, 2020, 31:868-883.

(12)Ma Z., Yue Y., Feng M., Li Y., Ma X., Zhao X.*, & Wang S. Mitigation of ammonia volatilization and nitrate leaching via loss control urea triggered H-bond forces. Scientific reports, 2019, 9(1), 1-9.

(13)Lili He, Jun Shan, Xu Zhao*, Shenqiang Wang, Xiaoyuan Yan. Variable responses of nitrification and denitrification in a paddy soil to long-term biochar amendment and short-term biochar addition. Chemosphere, 2019, 234: 558-567.

(14)Bi Y.C., Cai S.Y., Wang Y, Xia Y.Q., Zhao X.*, Wang S.Q., Xing G.X. Assessing the viability of soil successive straw biochar amendment based on a five-year column trial with six different soils: Views from crop production, carbon sequestration and net ecosystem economic benefits. Journal of Environmental Management, 2019, 245:173-186.

(15)Cai S Y, Pittelkow C. M., Zhao X.*, Wang S. Q. Winter legume-rice rotations can reduce N pollution and carbon footprint while maintaining net ecosystem economic benefits. Journal of Cleaner Production, 2018, 195：289-300.

(16)He L.L., Bi Y.C., Zhao J., Pittelkow C.M., Zhao X.*, Wang S.Q., Xing G.X. Population and community structure shifts of ammonia oxidizers after four-year successive biochar application to agricultural acidic and alkaline soils, Science of The Total Environment, 2018, 619: 1105~1115.

(17)Zhao Xu*, Nafziger, Emerson D, Pittelkow, Cameron M.*. Nitrogen rate strategies for reducing yield-scaled nitrous oxide emissions in maize, Environmental Research Letters, 2017, 12: 1~9.

(18)Zhao Xu, Yan Xiaoyuan, Xie Yingxin, Wang Shenqiang*, Xing Guangxi*, Zhu Zhaoliang. Use of Nitrogen Isotope To Determine Fertilizer- and Soil-Derived Ammonia Volatilization in a Rice/Wheat Rotation System, Journal of Agricultural and Food Chemistry, 2016, 64(15): 3017~3024.

(19)Zhao X.*, Christianson L.E., Harmel D., Pittelkow C.M*. Assessment of drainage nitrogen losses on a yield-scaled basis, Field Crops Research, 2016, 199: 156~166.

(20)He Lili; Liu Yuan; Zhao Jin; Bi Yucui; Zhao Xu*, Wang Shenqiang; Xing Guangxi. Comparison of straw-biochar-mediated changes in nitrification and ammonia oxidizers in agricultural oxisols and cambosols , Biology and Fertility of Soils, 2016, 52: 137~149.

(21)He Lili, Zhao, Xu*, Wang Shenqiang, Xing Guangxi. The effects of rice-straw biochar addition on nitrification activity and nitrous oxide emissions in two Oxisols, Soil and Tillage Research, 2016, 164: 52~62.

(22)Wang, Shenqiang, Zhao Xu*, Xing Guangxi, Yang Yuechao, Zhang Min, Chen Hongkun. Improving grain yield and reducing N loss using polymer-coated urea in southeast China, Agronomy for Sustainable Development, 2015, 35(3):1103~1115.

(23)Zhao Xu, Wang Shenqiang*, Xing Guangxi. Maintaining rice yield and reducing N pollution by substituting winter legume for wheat in a heavily-fertilized rice-based cropping system of southeast China, Agriculture Ecosystems & Environment, 2015, 202: 79~89.

(24)Song Ge, Zhao Xu*, Wang Shen-Qiang, Xing Guang-Xi, Zhu Zhao-Liang. Dissolved Organic Nitrogen Leaching from Rice-Wheat Rotated Agroecosystem in Southern China, Pedosphere, 2015, 25: 93~102.

(25)Zhao Xu*, Wang Jiangwei, Wang Shenqiang*, Xing Guangxi. Successive straw biochar application as a strategy to sequester carbon and improve fertility: A pot experiment with two rice/wheat rotations in paddy soil, Plant Soil, 2014, 378: 279~294.

(26)Zhao Xu, Wang Jiangwei, Xu Haojiang, Zhou Chunju, Wang Shenqiang*, Xing Guangxi. Effects of crop-straw biochar on crop growth and soil fertility over a wheat-millet rotation in soils of China, Soil Use and Management, 2014, 30:311-319.

(27)Zhao Xu*, Wang Shenqiang*, Xing Guangxi. Nitrification, acidification, and nitrogen leaching from subtropical cropland soils as affected by rice straw-based biochar: laboratory incubation and column leaching studies, Journal of Soils and Sediments, 2014, 14:471-482.

(28)Ge SONG, Xu ZHAO*, Shen-Qiang WANG, Guang-Xi XING. Nitrogen Isotopic Fractionation Related to Nitrification Capacity in Agricultural Soils, Pedosphere, 2014, 24: 186~195.

(29)Zhao Xu*, Yan Xiaoyuan, Wang Shenqiang*, Xing Guangxi, Zhou Yang. Effects of the addition of rice-straw-based biochar on leaching and retention of fertilizer N in highly fertilized cropland soils, Soil Science and Plant Nutrition, 2013, 59:771-782.

(30)Wang Yu, Hu Yuting, Zhao Xu*, Wang Shenqiang*, Xing Guangxi. Comparisons of Biochar Properties from Wood Material and Crop Residues at Different Temperatures and Residence Times, Energy & Fuels, 2013, 27: 5890~5899.

(31)Wang Shenqiang, Zhao Xu*, Xing Guangxi*, Yang Linzhang. Large-scale biochar production from crop residue: a new idea and the biogas-energy pyrolysis system, BioResources, 2013, 8:8–11.

(32)Zhao Xu, Zhou Yang, Wang Shenqiang*, Xing Guangxi, Shi Weiming, Xu Renkou, Zhu Zhaoliang. Nitrogen Balance in a Highly Fertilized Rice-Wheat Double-Cropping System in Southern China, Soil Science Society of America Journal, 2012, 76: 1068-1078.

(33)Xu Zhao, Yang Zhou, Ju Min, Shenqiang Wang*, Weiming Shi, Guangxi Xing*. Nitrogen runoff dominates water nitrogen pollution from rice-wheat rotation in the Taihu Lake region of China, Agriculture, Ecosystems &Environment, 2012, 156: 1~11.

(34)Zhao Xu, Min Ju, Wang Shenqiang, Shi Weiming*, Xing Guangxi. Further understanding of nitrous oxide emission from paddy fields under rice/wheat rotation in south China, Journal of Geophysical Research: Biogeosciences, 2011,116, G02016, DOI:10.1029/2010JG001528.

(35)Xu Zhao, Guang-xi Xing*. Variation in the relationship between nitrification and acidification of subtropical soils as affected by the addition of urea or ammonium sulfate, Soil Biology and Biochemistry, 2009, 41: 2584~2587.

(36)Zhao Xu, Xie Ying-xin, Xiong Zheng-qin, Yan Xiao-yuan, Xing Guang-xi*, Zhu Zhao-liang. Nitrogen fate and environmental consequence in paddy soil under rice-wheat rotation in the Taihu lake region, China, Plant and Soil, 2009, 319(1-2): 225~234.

(37)Zhao Xu, Yan Xiaoyuan, Xiong Zhengqin, Xie Yingxin, Xing Guangxi*, Shi Shulian, Zhu Zhaoliang. Spatial and Temporal Variation of Inorganic Nitrogen Wet Deposition to the Yangtze River Delta Region, China, Water, Air, and Soil Pollution, 2009, 203: 277~289.

(38)Xing Guangxi, Zhao Xu, Wang Shenqiang. Views on improved Nitrogen Cycling in Chinese Cropland (Chinese version), Beijing, Science Press, 2020.11

(1)2019, Outstanding member of Youth Innovation Promotion Association, CAS

(2)2016, Outstanding Young Scholar of Soil Science Society of China