简介：在水质量变量上理解浮游植物和他们的依赖的模式，能帮助发育营养正常促进剂湖的管理。这研究的目的是决定在金尚·莱克，与cyanobacteria优势和microcystin生产联系的水质量和环境因素位于Taihu分水岭的headwater的一个副热带的湖，中国。在金尚·莱克从10个学习地点每月收集的水样品包括全部的氮(TN)为淡水水藻和物理化学的参数的种类分布被分析，氨(NH4+-N)，硝酸盐(NO3-N),总数磷(TP)，并且叶绿素一(Chl--一)从2008年6月到2009年5月。金尚·莱克被发现是发育营养正常促进剂，基于计算营养的州的索引(TSI)。4.33mg/L的平均TN在学习时期期间超过了中国的表面水质量标准。TP显著地与相对许多cyanobacteria和Microcystisbiovolume被相关，显示它在调整cyanobacteria的重要角色。Microcystis，淡水藻类的一种，和Oscillatoria是在从6月的金尚·莱克的主导的cyanobacteria到2008年11月。Cyanobacteria优势走水路被调整温度和TP。主要部件分析进一步显示那microcystin生产最走水路被影响温度，TP，和cyanobacteria生物资源。结果建议在夏天的TP的控制能在金尚·莱克减轻cyanobacteria优势和microcystin生产，并且靠近的监视应该在夏天被承担。

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简介：Regionaldroughtanalysisprovidesusefulinformationforsustainablewaterresourcesmanagement.Inthispaper,astandardizedprecipitationindex(SPI)atmultipletimescaleswasusedtoinvestigatethespatialpatternsandtrendsofdroughtintheHanRiverBasin,oneofthelargesttributariesofYangtzeRiver,China.Itwasfoundthat,intermsofdroughtseverity,theupperbasinoftheHanRiveristheleast,whilethegrowingtrendisthemostconspicuous;alessconspicuousgrowingtrendcanbeobservedinthemiddlebasin;andthereisaninsignificantdecreasingtrendinthelowerbasin.Meanwhile,theimpactofdroughtontheMiddleRouteoftheSouth-to-NorthWaterTransferProjectwasinvestigated,anditissuggestedthatwaterintakemustbereducedintimesofdrought,particularlywhensuccessiveorsimultaneousdroughtsintheupperandmiddlebasinsoftheHanRiverBasinoccur.TheresultscanprovidesubstantialinformationforfuturewaterallocationschemesoftheSouth-to-NorthWaterTransferProject.

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简介：Theobjectiveofthisstudywastoobtainspatialdistributionmapsofpaddyricefieldsusingmulti-datemoderate-resolutionimagingspectroradiometer(MODIS)datainChina.Paddyricefieldswereextractedbyidentifyingtheuniquechar-acteristicofhighsoilmoistureinthefloodingandtransplantingperiodwithimprovedalgorithmsbasedonricegrowthcalendarregionalization.Thecharacteristiccouldbereflectedbytheenhancedvegetationindex(EVI)andthelandsurfacewaterindex(LSWI)derivedfromMODISsensordata.Algorithmsforsingle,early,andlatericeidentificationwereobtainedfromselectedtypicaltestsites.Thealgorithmscouldnotonlyseparateearlyriceandlatericeplantedinthesamefields,butalsoreducetheuncertainties.ThearealaccuracyoftheMODIS-derivedresultswasvalidatedbycomparisonwithagriculturalstatistics,andthespatialmatchingwasexaminedbyETM+(enhancedthematicmapperplus)imagesinatestregion.Majorfactorsthatmightcauseerrors,suchasthecoarsespatialresolutionandnoisesintheMODISdata,werediscussed.Althoughnotsuitableformonitoringtheinter-annualvariationsduetosomeinevitablefactors,theMODIS-derivedresultswereusefulforobtainingspatialdistributionmapsofpaddyriceonalargescale,andtheymightprovidereferenceforfurtherstudies.

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简介：FromthecasestudyofEveningBellRingingatNanpingHill,oneoftheWestLakeCulturalLandscapesinHangzhou,China,weinvestigatedthesoundscapeofascenicareawithaprofoundculturalbackground.First,weconductedthesoundscapephysicalindexoftheareainbothwinterandspringseasonstoanalyzeitsobjectivegraphicalexpression.Second,wefocusedonpeople’sreactionstothesoundscapeinordertoobtainasubjectiveevaluationofeachcomponentinthesoundscapeandintegratedenvironment.Then,therelationshipbetweentheobjectivedataandthesubjectiveevaluationwasanalyzed.Finally,theimpactsofthenaturalenvironment,history,andculturalfactorsontheevaluationoftheJingciTemplesoundscapewerestudied.Itwasfoundthatnaturalsounds,culturalsounds,andhistoricsoundswerewidelyacclaimedinpeople’ssubjectivefeelings,whichindicatedthecloserelationshipsamonghistoricalandculturalbackground,soundscape,andnaturalenvironment.Thus,theconclusionwasmadethatsoundscapeshouldbeconsistentwiththelocalnaturalenvironmentandthehistoricalandculturalbackground.

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