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自然资源学报 1993
THECLIMATO-ECOLOGICALFUNDAMENTALSOFTHE“MANMADECOMMUNITIES”OFTROPICALPERENNIALCROPSONHAINANISLAND,CHINADOI: 10.11849/zrzyxb.1993.01.007, PP. 46-62 Keywords: Hainanisland,rubber-cumteafarms,"manmadecommunities Abstract: ？<正>AccordingtotheleadingnationalclassificationoftheclimateofChina,givenbyB.Huang(revisedversion1986),Hainanfallsintothetropicalclimaticrealm,subdividedintoa"peripheraltropical"typeforthenorthernpartanda"middletropical"typeforthesouthernpartoftheisland.Whileall-year-roundfrost-freeconditionsdefinethetropicsingeneral,the20t-isothermforthecoldestmonthrepresentstheboundarybetweentheperipheraltropicalandmiddletropicaltypes.Comparedtothetropicalclimateingeneral,Hainanexperiencesdistinctlylowerwintertemperatureswhichthusresultinalargerannualtemperaturevariation.Intermsofprecipitation,HainanrecordsalongrainyseasonthroughthesouthwestmonsoonandtyphoonseasonsfromMayuntilOctoberwhilewinterprecipitationiscomparablylower.Representingtwoagroclimatichazards,strongtyphoonwindsandcoldwavesseriouslyaffectHainan.Althoughtobedefinedas"marginaltropica-1",theclimaticconditionsonHainan
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