[1] Panel on Climate Change. Climate Change 2021: The Physical Science Basis: Contribution of Working Group I to the Sixth Assessment Report of the IPCC[R]. Geneva, IPCC, 2021. 

[2] Dai A. Increasing drought under global warming in observations and models[J]. Nature Climate Change, 2013, 3(1): 52–58. 

[3] Hao Z C, Singh V P. Drought characterization from a multivariate perspective: A review[J]. Journal of Hydrology, 2015, 527: 668–678. 

[4] Sheffield J, Wood E F. Projected changes in drought occurrence under future global warming from multi-model, multi-scenario, IPCC AR4 simulations[J]. Climate Dynamics, 2008, 31(1): 79–105. 

[5] Martinez-Vilalta J, Anderegg W, Sapes G, Sala A. Greater focus on water pools may improve our ability to understand and anticipate drought–induced mortality in plants[J]. New Phytologist, 2019, 223(1): 22–32. 

[6] Rice K J, Matzner S L, Byer W. Patterns of tree dieback in Queensland, Australia: the importance of drought stress and the role of resistance to cavitation[J]. Oecologia, 2004, 139: 190–198. 

[7] Tyree M T, Zimmermann M H. Xylem structure and the ascent of sap[M]. Germany: Springer Science & Business Media, 2013. 

[8] Cowan I R. Stomatal behaviour and environment[M]. United States: Advances in Botanical Research, 1978: 117–228. 

[9] Munné-Bosch S, Alegre L. Die and let live: leaf senescence contributes to plant survival under drought stress[J]. Functional Plant Biology, 2004, 31(3): 203–216. 

[10] Tariq A, Pan K W, Olatunji O A, Graciano C, Li Z L, Sun F, Sun X M, Song D G, Chen W K, Zhang A P, Wu X G, Zhang L, Deng M R, Xiong Q L, Liu C G. Phosphorous application improves drought tolerance of Phoebe zhennan[J]. Frontiers in Plant Science, 2017, 8: 1561. 

[11] Du Y L, Zhao Q, Chen L R, Yao X D, Zhang W, Zhang B, Xie F T. Effect of drought stress on sugar metabolism in leaves and roots of soybean seedlings[J]. Plant Physiology and Biochemistry, 2020, 146: 1–12. 

[12] Reddy A R, Chaitanya K V, Vivekanandan M. Drought-induced responses of photosynthesis and antioxidant metabolism in higher plants[J]. Journal of Plant Physiology, 2004, 161(11): 1189–1202. 

[13] Fisher J B, Badgley G, Blyth E. Global nutrient limitation in terrestrial vegetation[J]. Global Biogeochemical Cycles, 2012, 26(3): 1–9. 

[14] Gessler A, Schaub M, McDowell N G. The role of nutrients in drought-induced tree mortality and recovery[J]. New Phytologist, 2017, 214(2): 513–520. 

[15] Tarvainen L, N?sholm T. Can adjustments in foliar nitrogen-use efficiency reduce drought stress impacts on boreal trees?[J]. Tree Physiology, 2017, 37(4): 415–417. 

[16] Xu N, Guo W, Liu J. Increased nitrogen deposition alleviated the adverse effects of drought stress on Quercus variabilis and Quercus mongolica seedlings[J]. Acta Physiologiae Plantarum, 2015, 37(6): 1–11. 

[17] Zhang H X, Gao Y Z, Tasisa B Y, Baskin J M, Baskin C C, Lu X T, Zhou D W. Divergent responses to water and nitrogen addition of three perennial bunchgrass species from variously degraded typical steppe in Inner Mongolia[J]. Science of the Total Environment, 2019, 647: 1344–1350. 

[18] Arquero O, Barranco D, Benlloch M. Potassium starvation increases stomatal conductance in olive trees[J]. HortScience, 2006, 41(2): 433–436. 

[19] Dziedek C, von Oheimb G, Calvo L. Does excess nitrogen supply increase the drought sensitivity of European beech (Fagus sylvatica L.) seedlings?[J]. Plant Ecology, 2016, 217(4): 393–405. 

[20] Ewers B E, Oren R, Sperry J S. Influence of nutrient versus water supply on hydraulic architecture and water balance in Pinus taeda[J]. Plant, Cell & Environment, 2000, 23(10): 1055–1066. 

[21] Waring R H. Characteristics of trees predisposed to die[J]. Bioscience, 1987, 37(8): 569–574. 

[22] Kreuzwieser J, Gessler A. Global climate change and tree nutrition: influence of water availability[J]. Tree Physiology, 2010, 30(9): 1221–1234. 

[23] Rahman M, Haque T L, Fukui T. Research articles published in clinical radiology journals: Trend of contribution from different countries[J]. Academic Radiology, 2005, 12(7): 825–829. 

[24] Peng Y L, Lin A W, Wang K, Liu F L, Zeng F, Yang L. Global trends in DEM-related research from 1994 to 2013: a bibliometric analysis[J]. Scientometrics, 2015, 105(1): 347–366. 

[25] Aria M, Cuccurullo C. Bibliometrix: An R-tool for comprehensive science mapping analysis[J]. Journal of Informetrics, 2017, 11(4): 959–975. 

[26] Ngcamu B S, Chari F. Drought influences on food insecurity in Africa: A systematic literature review[J]. International Journal of Environmental Research and Public Health, 2020, 17(16): 5897. 

[27] Intergovernmental Panel on Climate Change. Climate Change 2013: The Physical Science Basis: Contribution of Working Group I to the Fifth Assessment Report of IPCC[R]. Swedn, IPCC, 2013. 

[28] 于美佳, 叶彦辉, 段少荣, 韩艳英. 基于文献计量学的氮沉降对土壤微生物影响的可视化分析[J]. 安徽农业科学, 2021, 49(9): 230–236. 

[29] Zhang L X, Gao M, Li S X, Alva A K, Ashraf M. Potassium fertilization mitigates the adverse effects of drought on selected Zea mays cultivars[J]. Turkish Journal of Botany, 2014, 38(4): 713–723. 

[30] Li Z H, Wang M, Yang Y, Zhao S X, Zhang Y L, Wang X D. Effect of composted manure plus chemical fertilizer application on aridity response and productivity of apple trees on the loess plateau, China[J]. Arid Land Research and Management, 2017, 31(4): 388–403. 

[31] Wang L L, Wang S W, Chen W, Li H B, Deng X P. Physiological mechanisms contributing to increased water-use efficiency in winter wheat under organic fertilization[J]. PLoS One, 2017, 12(6): 154–164. 

[32] He Z Q, Zhang T H, Zhao X Y, Liu X P. The physiological-morphological (leaf-level) responses of soybean (Glycine max (L.) Merr.) to three regimes of deficit irrigation and fertilizer coupling in Horqin sandy land, northeastern China[J]. Fresenius Environmental Bulletin, 2018, 27(12B): 9828–9839. 

[33] Liu H, Song F B, Liu S Q, Liu F L, Zhu X C. Physiological response of maize and soybean to partial root-zone drying irrigation under N fertilization levels[J]. Emirates Journal of Food and Agriculture, 2018, 30(5): 364–371. 

[34] Fang L D, Zhao Q, Liu Y Y, Hao G Y. The influence of a five–year nitrogen fertilization treatment on hydraulic architecture of Pinus sylvestris var. mongolica in a water-limited plantation of NE China[J]. Forest Ecology and Management, 2018, 418: 15–22. 

[35] Yu F, Truong T V, He Q, Hua L, Su Y, Li J Y. Dry season irrigation promotes leaf growth in Eucalyptus urophylla × E. grandis under fertilization[J]. Forests, 2019, 10(1): 67. 

[36] Battie–Laclau P, Delgado-Rojas J S, Christina M, Nouvellon Y, Bouillet J P, Piccolo M D, Moreira M Z, Goncalves J, Roupsard O, Laclau J P. Potassium fertilization increases water-use efficiency for stem biomass production without affecting intrinsic water-use efficiency in Eucalyptus grandis plantations[J]. Forest Ecology and Management, 2016, 364: 77–89. 

[37] Asensio V, Domec J C, Nouvellon Y, Laclau J P, Bouillet J P, Jordan-Meille L, Lavres J, Rojas J D, Guillemot J, Abreu C H. Potassium fertilization increases hydraulic redistribution and water use efficiency for stemwood production in Eucalyptus grandis plantations[J]. Environmental and Experimental Botany, 2020, 176: 104085. 

[38] Mateus N D, Florentino A L, Santos E F, Ferraz A D, Goncalves J, Lavres J. Partial substitution of K by Na alleviates drought stress and increases water use efficiency in Eucalyptus species seedlings[J]. Frontiers in Plant Science, 2021, Doi: 10.3389/fpls.2021.632342 . 

[39] Jordan-Meille L, Martineau E, Bornot Y. How does water-stressed corn respond to potassium nutrition? A shoot-root scale approach study under controlled conditions[J]. Agriculture, 2018, 8(11): 180. 

[40] Flores R A, Arruda E M, de Souza J P, Prado R D, Dos Santos A, Aragao A S, Pedreira N G, Da Costa C F. Nutrition and production of Helianthus annuus in a function of application of leaf silicon[J]. Journal of Plant Nutrition, 2019, 42(2): 137–144. 

[41] Galindo F S, Pagliari P H, Rodrigues W L, Fernandes G C, Boleta E, Santini J, Jalal A, Buzetti S, Lavres J, Teixeira M. Silicon amendment enhances agronomic efficiency of nitrogen fertilization in maize and wheat crops under tropical conditions[J]. Plants–Basel, 2021, DOI: 10.3390/plants 10071329. 

[42] 刘世荣. 提升林草碳汇潜力助力碳达峰碳中和目标[J]. 大众投资指南, 2022(1): 55–56. 

[43] He Z H, Gong K Y, Zhang Z L, Dong W B, Feng H, Yu Q, He J Q. What is the past, present, and future of scientific research on the Yellow River Basin? –A bibliometric analysis[J]. Agricultural Water Management, 2022, 262: 107404. 

[44] Kulak M, Ozkan A, Bindak R. A bibliometric analysis of the essential oil–bearing plants exposed to the water stress: How long way we have come and how much further?[J]. Scientia Horticulturae, 2019, 246: 418–436. 

[45] Zhao Y L, Jiang Y G, Zhou Z F, Yang Z M. Global trends in karst–related studies from 1990 to 2016: A bibliometric analysis[J]. Alexandria Engineering Journal, 2021, 60(2): 2551–2562. 

[46] Lie Z Y, Penuelas J, Sardans J, Li Y L, Liu S Z, Chu G W, Meng Z, He X H, Liu J X. Warming drives sustained plant phosphorus demand in a humid tropical forest[J]. Global Change Biology, 2022, 28(13): 4085–4096. 

[47] Penuelas J, Sardans J, Ogaya R, M Estiarte. Nutrient stoichiometric relations and biogeochemical niche in coexisting plant species: effect of simulated climate change[J]. Polish Journal of Ecology, 2008, 56(4): 613–622. 

[48] Sardans J, Pe?uelas J. Plant–soil interactions in Mediterranean forest and shrublands: impacts of climatic change[J]. Plant and Soil, 2013, 365(1): 1–33. 

[49] Sardans J, Pe?uelas J. The role of plants in the effects of global change on nutrient availability and stoichiometry in the plant-soil system[J]. Plant Physiology, 2012, 160(4): 1741–1761. 

[50] Penuelas J, Ciais P, Canadell J G, Janssens I A, Fernandez-Martinez M, Carnicer J, Obersteiner M, Piao S L, Vautard R, Sardans J. Shifting from a fertilization-dominated to a warming–dominated period[J]. Nature Ecology & Evolution, 2017, 1(10): 1438–1445. 

[51] Sardans J, Pe?uelas J. Tree growth changes with climate and forest type are associated with relative allocation of nutrients, especially phosphorus, to leaves and wood[J]. Global Ecology and Biogeography, 2013, 22(4): 494–507. 

[52] Jacobs D F, Davis A S, Dumroese R K, Burney O T. Nursery cultural techniques facilitate restoration of Acacia koa competing with invasive grass in a dry tropical forest[J]. Forests, 2020, 11(11): 1124. 

[53] 王耕, 常畅, 石永辉. 基于文献计量的自然资本研究现状及热点[J]. 生态学报, 2019, 39(21): 8183–8192. 

[54] 奉国和, 孔泳欣. 基于时间加权关键词词频分析的学科热点研究[J]. 情报学报, 2020, 39(1): 100–110. 

[55] Song J Y, Wang Y, Pan Y H, Pang J Y, Zhang X, Fan J F, Zhang Y. The influence of nitrogen availability on anatomical and physiological responses of Populus alba × P. glandulosa to drought stress[J]. BMC Plant Biology, 2019, 19(1): 1–12. 

[56] Shimshi D. The effect of nitrogen supply on transpiration and stomatal behaviour of beans (Phaseolus vulgaris L.) [J]. New Phytologist, 1970, 69(2): 405–412. 

[57] Yang Y, Guo J Y, Wang G X, Yang L D, Yang Y. Effects of drought and nitrogen addition on photosynthetic characteristics and resource allocation of Abies fabri seedlings in eastern Tibetan Plateau[J]. New Forests, 2012, 43(4): 505–518. 

[58] Chen W, Yao X Q, Cai K Z, Chen J N. Silicon alleviates drought stress of rice plants by improving plant water status, photosynthesis and mineral nutrient absorption[J]. Biological Trace Element Research, 2011, 142(1): 67–76. 

[59] Hajiboland R, Cheraghvareh L, Poschenrieder C. Improvement of drought tolerance in Tobacco (Nicotiana rustica L.) plants by silicon[J]. Journal of Plant Nutrition, 2017, 40(12): 1661–1676. 

[60] Mi Y F, Cui R H. Effect of waterlogging stress on photosynthetic characteristics of different resistance of kiwifruit seedlings[J]. Northern Horticulture, 2015, 2: 14–17. 

[61] Song Y S, Li J L, Liu M L, Meng Z, Liu K C, Sui N. Nitrogen increases drought tolerance in maize seedlings[J]. Functional Plant Biology, 2019, 46(4): 350–359. 

[62] Habiba U, Ali S, Farid M, Shakoor M B, Rizwan M, Ibrahim M, Abbasi G H, Hayat T, Ali B. EDTA enhanced plant growth, antioxidant defense system, and phytoextraction of copper by Brassica napus L.[J]. Environmental Science and Pollution Research, 2015, 22(2): 1534–1544. 

[63] Hasanuzzaman M, Bhuyan M, Nahar K, Hossain M S, Al Mahmud J, Hossen M S, Masud A, Moumita, Fujita M. Potassium: A vital regulator of plant responses and tolerance to abiotic Stresses[J]. Agronomy–Basel, 2018, 8(3): 31. 

[64] Cakmak I. The role of potassium in alleviating detrimental effects of abiotic stresses in plants[J]. Journal of Plant Nutrition and Soil Science, 205, 168(4): 521–530. 

[65] Brito C, Dinis L T, Ferreira H, Moutinho-Pereira J, Correia C. The role of nighttime water balance on Olea europaea plants subjected to contrasting water regimes[J]. Journal of Plant Physiology, 2018, 226: 56–63. 

[66] Zafar Z, Rasheed F, Atif R M, Javed M A, Maqsood M, Gailing O. Foliar application of salicylic acid improves water stress tolerance in Conocarpus erectus L. and Populus deltoides L. saplings: evidence from morphological, physiological, and biochemical changes[J]. Plant–Basel, 2021, 10(6): 1242. 

[67] Saheri F, Barzin G, Pishkar L, Boojar M, Babaeekhou L. Foliar spray of salicylic acid induces physiological and biochemical changes in purslane (Portulaca oleracea L.) under drought stress[J]. Biologia, 2020, 75(12): 2189–2200. 

[68] Chaves M M, Pereira J S, Maroco J. How plants cope with water stress in the field? Photosynthesis and growth[J]. Annals of Botany, 2002, 89(7): 907–916. 

[69] Basal O, Szabo A. The combined effect of drought stress and nitrogen fertilization on soybean[J]. Agronomy–Basel, 2020, 10(3): 384. 

[70] Zamani S, Naderi M R, Soleymani A, Nasiri B M. Sunflower (Helianthus annuus L.) biochemical properties and seed components affected by potassium fertilization under drought conditions[J]. Ecotoxicology and Environmental Safety, 2020, 190: 110017. 

[71] Alandia G, Jacobsen S E, Kyvsgaard N C, Condori B, Liu F. Nitrogen sustains seed yield of Quinoa under intermediate drought[J]. Journal of Agronomy and Crop Science, 2016, 202(4): 281–291. 

[72] Van Der Graaf S C, Janssen T A J, Erisman J W. Nitrogen deposition shows no consistent negative nor positive effect on the response of forest productivity to drought across European FLUXNET forest sites[J]. Environmental Research Communications, 2021, 3(12): 125003. 

[73] Nogueira C, Bugalho M N, Pereira J S, Caldeira M C. Extended autumn drought, but not nitrogen deposition, affects the diversity and productivity of a Mediterranean grassland[J]. Environmental and Experimental Botany, 2017, 138: 99–108. 

[74] Hughes J, Hepworth C, Dutton C, Dunn J A, Hunt L, Stephens J, Waugh R, Cameron D D, Gray J E. Reducing stomatal density in barley improves drought tolerance without impacting on yield[J]. Plant Physiology, 2017, 174(2): 776–787. 

[75] Scharwies J D, Dinneny J R. Water transport, perception, and response in plants[J]. Journal of Plant Research, 2019, 132(3): 311–324.