羅望子人工林營(yíng)建對(duì)元謀干熱河谷退化生態(tài)系統(tǒng)的效應(yīng).pdf

1、中國(guó)農(nóng)業(yè)大學(xué)碩士學(xué)位論文羅望子人工林營(yíng)建對(duì)元謀干熱河谷退化生態(tài)系統(tǒng)的效應(yīng)姓名：劉光華申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：農(nóng)業(yè)推廣種植指導(dǎo)教師：黃衛(wèi)東紀(jì)中華20050801AbstractTheclimateandtheconditionoflocalgrowthisextremelybadandthevegetationecosystemisdestroyedeasilyandrestoreddifficultlyinYuanmoudry—hotv

2、alleyThemassivestudyofmanyresearchinstituesformanyyearsindicated：itisthemostimportantworkselectingthesuitabletreeseeds，buildingtheplantedforestofTamarindusindicarestoringandreconstructingvegetationmaximizelyonrenovatingc

3、omprehensivelythedegenerationecosysteminYuaumoudry—hotvalleyFortheecologybenefitandtheeconomicalandthesocialefficiencywechooseTamarindusindicaasthehosttreeseedoftacklingtheareadegenerationslopes，andconstructtheplantedfor

4、estecosysteminwidespreadresoulcesinvestigationByadoptingtheessentialtechnicalmeasure”diggingbigpitsandmixingenoughfertilizergrowingstrongsaplingsinthebags，plantingattherightmoment，guaranteeingasoilmoisturedrought”andaser

5、iesofeffectivecomprehensivemanagementmeasures，wehaveobtainedSUCCESSinbuildingtheplantedforestofTamarindusindicaAcomparisonandanalysisofmassiveobservationdatasaboutthecrops，thesoil，theatmosphereandsoonintheforestindicates

6、thattheeffectsoftheplantedforestecosystemofTamarindusindicaareisobviousinYuanmoudryhotvalleyTheessentialeffectsareasfollows：1Thesoildegenerationisundertheobviouscontrol(thephysicscharactersofsoilareimproved，thefertilityo

7、fsoilisenhanced)2Thedegreeofsoilerosionreduces3Thedry—hotclimatecanbeadjusted，thespeedofwindisreduced4TheplantsreducesthedegreeofthelacksofthewaterandgrowsnormallyThedegeneratedecosystemwastransformedintothefineecosystem