亚热带植物科学
亞熱帶植物科學
아열대식물과학
SUBTROPICAL PLANT SCIENCE
2013年
2期
109-112
,共4页
胡彦辉%熊咏梅%徐志平%吴渭湛
鬍彥輝%熊詠梅%徐誌平%吳渭湛
호언휘%웅영매%서지평%오위담
土壤肥力%道路绿地%园林工程%广州
土壤肥力%道路綠地%園林工程%廣州
토양비력%도로록지%완림공정%엄주
soil fertility%road green-land%landscape engineering%Guangzhou
通过对广州市12条道路绿地土壤进行采样调查,结合主成分分析法,研究广州市道路绿地土壤肥力特征及筛选出主导因子。结果表明,广州市道路绿地土壤pH值为5.52~8.76,碱性和强碱性土壤比例为78.26%;EC值和有机质平均值分别为0.19 mS/cm和26.52 g/kg;有效磷含量很高,全氮和全钾含量较高,全磷、碱解氮和速效钾含量较低。筛选结果显示,广州市道路绿地土壤pH值、有机质、全氮、全磷、碱解氮和有效磷可作为土壤肥力评价的主要因子,全钾和速效钾为次要因子。
通過對廣州市12條道路綠地土壤進行採樣調查,結閤主成分分析法,研究廣州市道路綠地土壤肥力特徵及篩選齣主導因子。結果錶明,廣州市道路綠地土壤pH值為5.52~8.76,堿性和彊堿性土壤比例為78.26%;EC值和有機質平均值分彆為0.19 mS/cm和26.52 g/kg;有效燐含量很高,全氮和全鉀含量較高,全燐、堿解氮和速效鉀含量較低。篩選結果顯示,廣州市道路綠地土壤pH值、有機質、全氮、全燐、堿解氮和有效燐可作為土壤肥力評價的主要因子,全鉀和速效鉀為次要因子。
통과대엄주시12조도로록지토양진행채양조사,결합주성분분석법,연구엄주시도로록지토양비력특정급사선출주도인자。결과표명,엄주시도로록지토양pH치위5.52~8.76,감성화강감성토양비례위78.26%;EC치화유궤질평균치분별위0.19 mS/cm화26.52 g/kg;유효린함량흔고,전담화전갑함량교고,전린、감해담화속효갑함량교저。사선결과현시,엄주시도로록지토양pH치、유궤질、전담、전린、감해담화유효린가작위토양비력평개적주요인자,전갑화속효갑위차요인자。
According to the sampling research of soil for the green-land of 12 urban roads in Guangzhou by using principal component analysis, the soil fertility characteristics were studied and the dominant factors were screened. The results showed that the soil pH value was 5.52-8.76, in which the ratio of alkaline soil to strong alkaline soil was 78.26%;the EC value and the average value of organic matter were 0.19 mS/cm and 26.52 g/kg, respectively, which led to low water soluble salt and organic nutrient;in addition, available P was at a high level, and next levels were total N and total K, while total P, available N and available K were at low levels. The screening results showed that, the soil pH, organic matter, total N, total P, available N and available P could be selected as target on evaluating soil fertility as main factors, meanwhile, the soil total K and available K could be selected as target on evaluating soil fertility as secondary factor. Eventually, these research results provided a basis for the construction management and post maintenance of urban road green-land.