CAJ | 학술논문

土壤质量指标的筛选是科学地进行土壤质量评价的前提.本文以城市森林土壤为研究对象,探讨了土壤肥力指标的筛选方法.采集南京市不同功能区森林土壤样品(0 ～ 20 cm),分析了24个土壤质量指标.根据指标间的相关性和聚类分析结果,筛选出体积质量(容重)、黏粒含量、分散系数、可蚀性因子K值、水稳性指数、pH值、有机质、速效钾和纤维素酶活性,共9个指标作为城市森林土壤肥力质量评价的因子.
토양질량지표적사선시과학지진행토양질량평개적전제.본문이성시삼림토양위연구대상,탐토료토양비력지표적사선방법.채집남경시불동공능구삼림토양양품(0 ～ 20 cm),분석료24개토양질량지표.근거지표간적상관성화취류분석결과,사선출체적질량(용중)、점립함량、분산계수、가식성인자K치、수은성지수、pH치、유궤질、속효갑화섬유소매활성,공9개지표작위성시삼림토양비력질량평개적인자.
It is necessary to establish the proper indicators for soil quality assessment. In this paper a method with Peason two-tailed bivariate correlations and Cluster analysis was applied for the determination of soil quality index of urban forest soil. Urban soil samples at 0-20 cm depths were collected from the forests in Nanjing at different functional areas, and 24 soil indicators were analyzed in lab, finally 9 of soil indicators were selected to compose the minimum factor set for the fertility assessment of urban forest soil, including soil bulk density, clay content, dispersion coefficient, credibility K values, water stable index, pH, organic matter, available potassium, and cellulase activity.