亚热带水土保持
亞熱帶水土保持
아열대수토보지
Subtropical Soil and Water Conservation
2015年
3期
38-40,63
,共4页
圆叶决明%油茶园%物理结构%土壤养分%水土保持%水土流失
圓葉決明%油茶園%物理結構%土壤養分%水土保持%水土流失
원협결명%유다완%물리결구%토양양분%수토보지%수토류실
Chamaecrista rotundifolia%oil tea camellia garden%physical structure%soil nutrients%soil and water con-servation%soil erosion
通过对套种圆叶决明的油茶园土壤作为期3年的理化性质及流失量动态变化研究，初步了解茶园套种圆叶决明的水土保持效果，结果表明：①土壤养分随时间变化增幅明显；②土壤质地随时间变化进一步改善，具体表现在其容重降低、孔隙度和持水量增加；③土壤中砂砾含量逐年降低，粉粒含量逐年上升，土壤机械组成更趋合理；④土壤流失量呈逐年降低趋势。表明油茶园套种圆叶决明具有良好的水土保持效果。
通過對套種圓葉決明的油茶園土壤作為期3年的理化性質及流失量動態變化研究，初步瞭解茶園套種圓葉決明的水土保持效果，結果錶明：①土壤養分隨時間變化增幅明顯；②土壤質地隨時間變化進一步改善，具體錶現在其容重降低、孔隙度和持水量增加；③土壤中砂礫含量逐年降低，粉粒含量逐年上升，土壤機械組成更趨閤理；④土壤流失量呈逐年降低趨勢。錶明油茶園套種圓葉決明具有良好的水土保持效果。
통과대투충원협결명적유다완토양작위기3년적이화성질급류실량동태변화연구，초보료해다완투충원협결명적수토보지효과，결과표명：①토양양분수시간변화증폭명현；②토양질지수시간변화진일보개선，구체표현재기용중강저、공극도화지수량증가；③토양중사력함량축년강저，분립함량축년상승，토양궤계조성경추합리；④토양류실량정축년강저추세。표명유다완투충원협결명구유량호적수토보지효과。
Three-year dynamic changes study was conducted on physical and chemical properties and erosion vol-ume of soil in the oil tea camellia garden intercropping with the Chamaecrista rotundifolia so that to know the soil con-servation effect.The results showed that:1) soil nutrient increases obviously followed with the time changes;2) soil texture is further improved over time, including the reduction of bulk density, increase of the porosity and moisture ca-pacity;3) sand and gravel content gradually decrease while the silt content gradually increase by years, making the soil mechanical composition more reasonable;and 4 ) soil loss appear the decrease trend by years.All these indicated that Chamaecrista rotundifolia has good effect of soil conservation on the soil environment in the oil tea camellia gar-den.
