CAJ | 학술논문

采用野外调查与室内分析相结合的方法，对不同土壤水库营建措施下红壤果园的土壤水分物理性质、土壤团聚体及稳定性进行了研究．试验结果表明：（1）不同土壤水库营建措施果园土壤容重出现不同程度的减小，其中以施用多量有机质肥的果园变化最为明显；对照总孔隙度与采取营建措施果园的无明显差异，但整个土壤剖面上其非毛管孔隙显著低小．（2）在干筛处理下土壤团聚体以〉2mm粒径为主，总体呈现出随粒径的加大先增加后降低再增加的趋势；而在湿筛处理下土壤团聚体以〈0．25min粒径为主，呈现出随着粒径的增大而减少的趋势．（3）不同土壤水库营建措施果园的土壤团聚体破坏率，总体上呈现多量有机质肥〈少量有机质肥〈稻草覆盖〈清耕〈对照的趋势．
채용야외조사여실내분석상결합적방법，대불동토양수고영건조시하홍양과완적토양수분물이성질、토양단취체급은정성진행료연구．시험결과표명：（1）불동토양수고영건조시과완토양용중출현불동정도적감소，기중이시용다량유궤질비적과완변화최위명현；대조총공극도여채취영건조시과완적무명현차이，단정개토양부면상기비모관공극현저저소．（2）재간사처리하토양단취체이〉2mm립경위주，총체정현출수립경적가대선증가후강저재증가적추세；이재습사처리하토양단취체이〈0．25min립경위주，정현출수착립경적증대이감소적추세．（3）불동토양수고영건조시과완적토양단취체파배솔，총체상정현다량유궤질비〈소량유궤질비〈도초복개〈청경〈대조적추세．
The physical properties of soil moisture and the stabilities of soil aggregates have been studied through field investi- gation and laboratory analysis. The results show that：（ 1 ） Soil bulk density decreases differently under different soil reservoir construction measures,in which the orchard tO which large amounts of organic fertilizer has been applied changes obviously. No significant difference appears in total porosity between the CK and the orchard constructed by different measures, but non- capillary porosity of the former is significantly low throughout the whole soil profile. （2） Under dry sieving, most soil aggre- gates are 〉2 ram,and their amounts decrease at the beginning,then increase,and decrease at last with the increase of their diameters; while under wet sieving, most soil aggregates are 〈 0.25 ram, and their amounts decrease with the increase of their sizes. （ 3 ） The damage rate of soil aggregates in different soil reservoir construction measures shows the tendency that large amounts of organic fertilizer 〈 small amounts of organic fertilizer 〈 straw mulching 〈 clean tillage 〈 the CK.