CAJ | 학술논문

以苏南丘陵区杉木、马尾松、栎林、毛竹等4种林分土壤为研究对象,采用全氪、全磷、有效磷、速效钾、pH、土壤密度、有机质、蔗糖酶、脲酶、磷酸酶、全铜、全锌、全铅、全铬、全镍等15个指标,分别从土壤肥力质量、生物学质量和环境质量3个方面,研究各林分的土壤质量,并将研究区的土壤质量分为5级.运用模糊综合评价法,对4种林分的土壤质量进行评价,结果表明:土壤质量综合评价指数均在0.4～0.6,土壤质量为Ⅲ级,土壤质量指数从大到小依次为毛竹、杉木、马尾松、栎林、对照(裸地),表明该地区的土壤质量总体处于中等水平.土壤磷、钾元素含量低是造成土壤质量不高的主要原因,其在一定程度上影响了土壤的肥力水平.
이소남구릉구삼목、마미송、력림、모죽등4충림분토양위연구대상,채용전극、전린、유효린、속효갑、pH、토양밀도、유궤질、자당매、뇨매、린산매、전동、전자、전연、전락、전얼등15개지표,분별종토양비력질량、생물학질량화배경질량3개방면,연구각림분적토양질량,병장연구구적토양질량분위5급.운용모호종합평개법,대4충림분적토양질량진행평개,결과표명:토양질량종합평개지수균재0.4～0.6,토양질량위Ⅲ급,토양질량지수종대도소의차위모죽、삼목、마미송、력림、대조(라지),표명해지구적토양질량총체처우중등수평.토양린、갑원소함량저시조성토양질량불고적주요원인,기재일정정도상영향료토양적비력수평.
In this paper, the soil quality under different forest stands in the watershed of southern Jiangsu province from the aspect of soil fertility, biological quality and environmental quality were studied. The author took Cunninghamia lan-ceolata, Pinus massoniana Lamb as object, and took total nitrogen, total phosphorus, pH, MO, soil sucrase, soil ure-ase, soil phosphatase, total Cu, total Zn, total Pb, total Cr, total Ni, etc as assessment indexes. Using the method of Fuzzy compositive assessment the soil quality were assessed. The results indicated that the compositive index of soil quality was between 0.4-0.6. The soil quality in the area belonged to the third class. The contents of phosphorus and potassium in soil made a great influence soil fertility in the area.