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闵庆文中科院地理资源所自然与文化遗产研究中心FAOGIAHS中国项目办公室minqw@igsnrr.ac.cnTwofactsDroughtsinHistoryAnalysisbasedonthedatafrom124weatherstationsinYunnanprovinceshowedthatduringthelast40yearstheaverageannualprecipitationdecreasedabout50mm;andtheaverageannualairtemperatureincreasedabout0.8℃.SouthwestDroughtinChina2009-2010Itleavemorethan25.95millionpeopleand18.44millionlivestockwithdrinkingwatershortagesaswellas8.07millionhaofarableland.Southwestdroughtcausedgreateconomiclosseswithstandingat19billionyuan($2.8billion).TheraredroughtinChina’ssouthwesternareashascloseconnectionwithglobalwarming.(Huangetal.2011.DiagnosisoftheSevereDroughtinAutumn/Winter2009-2010inYunnanProvince.TROPICALGEOGRAPHY.31(1):28-33.)MiraclesofHaniRiceTerracesCCTV-1“FocusInterview”:Anti-Drought:InspirationfromHaniRiceTerracesCCTV-7“AgriculturalSci.&Tech.”:SecretofHaniRiceTerracesCCTV-10“ChineseGeography”:LadderstotheHeavenSpectacularWondersAboutHaniRiceTerracesWeshouldstudythescientificmechanismshiddeninthebeautifulandspectacularsystemanddeeplyunderstandtheHaniRiceTerraces:landscapebiodiversityculturesoilandwatermanagement……Fourreasonstorelievetheseveredrought“Forest-Village-Terrace-River”Landscape(“Four-in-One”System)SuitablewaterconservationwoodsAlder(Alnusnepalensis)aspecialanddominanttreespeciesplaysanimportantroleinwaterconservationthroughitsuniquerootnodulesandwelldevelopedrootsystems.InafieldexperimentasmallpuddlewasdugonthegroundundertheAlnusnepalensistreesafter2hoursthepuddlewasfullofwaterwhichsuccessfullyproveditshighwaterretention.PerfectwatersystemTheHanipeopleutilizeandmanagewaterresourcesinauniquesimpleeconomicalandefficientmanner.“Ditch-leader-system”and“Carved-Stone-water”ensureequitableandlogicalwaterdistributionforirrigationandflowfro