混铁沟流域景观特征分析及其经营方案的编制

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1、万方数据ofhuntiegouforestiskeeppingsoilaIldwater，sothedirectionoperationsareultimatelyformingmultiplelayers，uneVen—aged，mixedforest，keepingtheforeststmctureoriginaltofellthetreeswhich伊owingdefects，gro、Ⅳthistoodense，nonurturingpromising，letothertreestogoodgrowth，Sothispiece

2、forestcanplayagoodecologicalbenefitswhilealsotakingintoaccounttheeconomicinthenextfewVearsandevendecades，tosustainablemanagement．ForaVarietymanagementtypes，accordingtothedi舵rentagestages，designdi行．erentmanagementtechnology，youngforestbymaintainingacertaindensity，cultur

3、egoodstemfonn，andcontrolherbsbypmning，suppoIrttheadVantageswoodortargettree，toproVideadequatespaceandnutrientsforsmanseedlings；thinningthemiddleageforest，preservesthegoodgm、玑hconditionforest，remoValdidnotfosterfutureforest，proVidebetterresourcestonurturepromisingtree；n

4、earmatureforestandmatureforestclearcut血19orselectiVecuttingcanbeused，becausetheecologicalfunctionisveryimponentsoweuseselectioncutting，felltheharvestingtree，aftereutting，shouldalsopayattentiontoupdate，inthenaturalregenerationbadcircumstancesadoptmanualupdate．ARerabusin

5、esscycle，theoriginalnearmatllreforest，middleageforestpatchesfortheprogressiVetransfomlationconif．erousandbmad-leaVedmixeduneVenagedforestpatches，suchasmosenaturalbirchnearmatureforesttransformationforthesunnynaturalbirch，pine，foresttransfonIlationnaturalbirchinshadyslo

6、petoslopenatumlbirch，pinemixedforesttheoriginaloil；theyo吼gforestconserVationspeciescompositioninVariant．Sot11ebusinessaRerthepatchiscomposed20kindschallgeintheoriginal17．WhichismelargestareaNonhMongoliaanmciallarch，oakmixedf．oreStpatches，61hm2．areaisthesmallestnaturalb

7、irchmixedforestChinesePineⅥllley，plaque，1．8hm2．Keyword：BaSin；Landscape；Characteristics；TheManagementPlan万方数据目录l引言．⋯⋯⋯⋯⋯⋯⋯⋯⋯．⋯⋯⋯．．⋯⋯⋯．⋯⋯．．⋯．⋯．⋯．．11．1研究目的与意义．⋯⋯⋯⋯⋯⋯．⋯．⋯．⋯．．．⋯⋯．．⋯．⋯．⋯．．11．2国内外研究进展⋯⋯⋯⋯．⋯⋯⋯．⋯⋯⋯．⋯．．⋯⋯．．⋯⋯⋯l1．2．1森林景观的研究现状⋯⋯⋯．⋯．．⋯．．．⋯⋯．．⋯．⋯⋯．⋯．．11．2．2经营方案的研究现状

8、．．⋯⋯⋯⋯⋯⋯⋯．⋯⋯．⋯⋯⋯⋯．．21．2．3我国森林景观格局特征研究进展⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．．31．2．4国内经营方案的研究进展．⋯．．⋯．．⋯．．⋯．．⋯．⋯．⋯．⋯⋯．．41．3研究内容及技术路线⋯。⋯⋯．⋯⋯⋯⋯．⋯⋯