五种南方阔叶树种人工林土壤肥力状况评价

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1、万方数据hystrix>Acaciameianoxyion．Organiccarbon：Castanpsismeianoxyion>Castanopsisfissa>Mytilarialaosensis>Micheliamacclurei．N：Acaciameianoxyion>Mytilarialaosensis>Castanpsishystrix>Castanopsisfissa>Micheliamacclurei．P：Mytilarialaosensis>Castanopsisfissa>Acaciameianoxy

2、ion>Castanpsishystrix>Micheliamacclurei．K：Mytilarialaosensis>Castanopsisfissa>Micheliamacclurel>Castanpsismeianoxyion．C／N：Micheliamacclurei>Castanpsishystrix>Castanopsisfissa>Mytilarialaosensis>Acaciameianoxyion．Litterthickness，N，PandC／Nwereextremelysignificant．Mg

3、、Mn、Znoflitterwerehigherthansoil，butA1、Fewerefarlessthansoil．ThecontentofA1、Mnweresignificantlydifferent；Mgwasextremelysignificant；Fe，Znwerenotsignificantlydifferent．7．Thecorrelationshipbetweensoilphysicalandchemicalpropertiesandbiologicalactivitywascomplex，differ

4、entfactorshaddifferentaffectsonsoilfertility,soilphysicalpropertiesandsoilacidityweretheprimaryNcmrs，soilnutrientcontentwasanimportantfactor，andthequantityofmicroorganismsandenzymeactivityweresecondaryfactors．Soilfertilityofthe5plantations：Castanopsisfissa>Castanp

5、sishystrix>Mytilarialaosensis>Micheliamacclurez>Acaciameianoxyion．Keywords：broad—leavedtrees；microorganism；enzymeactivity；soilproperties；soilfertilityVIl万方数据目录摘要⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯IAbstract⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯11-，录⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯

6、⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯VIII第一章文献综述⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯l1．1南方优良阔叶树种概述⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯一1l-2南方优良阔叶树种发展前景⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯～11．3黑木相思等五种南方优良阔叶树种的研究现状⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．．11．3．1黑木相思研究现状⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯11．3．2米老排的研究现状⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯21．3．3红椎的研究现状⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯41．3．

7、4黧蒴的研究现状⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯51．3．5火力楠的研究现状⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯51．4本试验的研究目的及意义⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯～6第二章材料与方法⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯。82．1研究地概况⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．．82-2研究方法⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．．82．2．1实验样地设置和样品采集⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯82．2．2土壤物理性质的测定⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯

8、⋯⋯⋯⋯⋯⋯⋯⋯⋯92．2．3土壤微生物的测定⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯92．2．4土壤营养元素的测定⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．．102．2．5土壤酶活性的测定⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．．102．2．6土壤酸度的测定⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．．13