CAJ | 학술논문

为探讨紫色土区坡耕地不同治理模式下土壤物理性质，选取遂宁水土保持试验站的新银合欢植物篱＋玉米、香根草植物篱＋玉米、玉米地、枇杷、黄花、柠檬6种治理模式，以裸地为对照，以土壤容质量、孔隙、持水量、有机质为评价指标，对紫色土区坡耕地6种治理模式进行研究。结果表明：不同治理模式对土壤容质量的影响表现为裸地最大，柠檬和枇杷最小；而对土壤孔隙度、持水量、有机质的影响均有差异，大致表现为枇杷和柠檬最大，裸地最小。采用相关分析和主成分分析表明，土壤容质量与总孔隙度、非毛管孔隙度、最大持水量、毛管持水量和最小持水量均呈极显著负相关，土壤总孔隙度与最大持水量、毛管持水量和最小持水量均呈极显著正相关；6种治理模式改善土壤物理特性效果优劣由大到小表现为枇杷，柠檬，香根草植物篱＋玉米，新银合欢植物篱＋玉米，黄花，玉米，裸地。
위탐토자색토구파경지불동치리모식하토양물이성질，선취수저수토보지시험참적신은합환식물리＋옥미、향근초식물리＋옥미、옥미지、비파、황화、저몽6충치리모식，이라지위대조，이토양용질량、공극、지수량、유궤질위평개지표，대자색토구파경지6충치리모식진행연구。결과표명：불동치리모식대토양용질량적영향표현위라지최대，저몽화비파최소；이대토양공극도、지수량、유궤질적영향균유차이，대치표현위비파화저몽최대，라지최소。채용상관분석화주성분분석표명，토양용질량여총공극도、비모관공극도、최대지수량、모관지수량화최소지수량균정겁현저부상관，토양총공극도여최대지수량、모관지수량화최소지수량균정겁현저정상관；6충치리모식개선토양물리특성효과우렬유대도소표현위비파，저몽，향근초식물리＋옥미，신은합환식물리＋옥미，황화，옥미，라지。
T his study aimed to estimating the effects of different management modes on soil physical prop‐erties in purple soil areas of sloping farmland . Leucaena leucocephala hedgerows+ corn ,Vetiveria zi‐zanioideshedgerows+corn,Cornfield,Eriobotryajaponica,HemerocallisfulvaandCitruslimonthese six management modes have been researched in soil and water conservation experiment station in Suining and bare land been chosen as the referential system .We have measured soil bulk density ,porosity ,water capacities and soil organic matter (SOM ) as evaluation indicators .The soil physical properties of different management modes have been analyzed in purple soil areas .The results indicate that soil bulk density of Citrus limon and Eriobotrya j aponica are smallest ,that of bare land is largest .However porosity ,water capacity and organic matter of Citrus limon and Eriobotrya japonica are largest ,those of bare land are smallest .With relative analysis and analysis of principal component ,we have found that there is a signifi‐cant positive correlation between soil bulk density and total porosity ,capillary porosity ,non‐capillary po‐rosity ,maximum moisture capacity ,capillary water capacity and minimum water holding capacity ,but a significant negative correlation between total porosity and maximum moisture capacity ,capillary water ca‐pacity and minimum water holding capacity .The order of effects of different management modes on soil physical properties from high to low is :Eriobotrya japonica> Citrus limon>Vetiveria zizanioides hedg‐erows+ corn> Leucaena leucocephala hedgerows+ corn> Hemerocallis fulva> corn> bare land .