防护林科技
防護林科技
방호림과기
Protection Forest Science and Technology
2015年
9期
5-7,25
,共4页
层次分析%土壤肥力%入渗%持水%对比分析
層次分析%土壤肥力%入滲%持水%對比分析
층차분석%토양비력%입삼%지수%대비분석
analytic hierarchy process%soil fertility%infiltration%water holding%comparative analysis
通过测定不同树种林分下土壤的肥力及物理性状，采用改进层次分析法(AHP)对土壤肥力水平进行综合评价，并结合各土壤入渗及持水特征对土壤水平进行对比。结果表明：在中坡，山楂林分土壤肥力综合水平、蓄持水能力都高于杨树林分，但其稳定入渗速率低于杨树林分；坡顶处，核桃林土壤肥力及入渗能力均高于荒草地，但其容重较大；板栗林土壤入渗及持水状况好于荒草地，但土壤肥力水平低于后者。
通過測定不同樹種林分下土壤的肥力及物理性狀，採用改進層次分析法(AHP)對土壤肥力水平進行綜閤評價，併結閤各土壤入滲及持水特徵對土壤水平進行對比。結果錶明：在中坡，山楂林分土壤肥力綜閤水平、蓄持水能力都高于楊樹林分，但其穩定入滲速率低于楊樹林分；坡頂處，覈桃林土壤肥力及入滲能力均高于荒草地，但其容重較大；闆慄林土壤入滲及持水狀況好于荒草地，但土壤肥力水平低于後者。
통과측정불동수충림분하토양적비력급물이성상，채용개진층차분석법(AHP)대토양비력수평진행종합평개，병결합각토양입삼급지수특정대토양수평진행대비。결과표명：재중파，산사림분토양비력종합수평、축지수능력도고우양수림분，단기은정입삼속솔저우양수림분；파정처，핵도림토양비력급입삼능력균고우황초지，단기용중교대；판률림토양입삼급지수상황호우황초지，단토양비력수평저우후자。
By measuring the physicochemical properties of soil understory with different slope positions,soil fertility was comprehensively evaluated by adopting improved analytic hierarchy process (AHP).Soil level was compared by the characteristics of soil infiltration and water retention capacity.Result shows that at the middle of the slope, comprehensive levels of soil fertility and water holding of Crataegus pinnatifida are all higher than that of Populus simonii,but its steady infiltration rate is lower than that of Populus simonii ;at the top,the soil fertility and water infiltration capacity of J uglans regia are higher than that of wild grass ground,but it have greater bulk gravity;the soil infiltration and water retention capacity of Castanea mollissima are higher than that on wild grass ground,but its fertility level is below than that of the latter.
