摘要
基于翁源县第二次土壤普查数据、测土施肥农业项目调查数据及实地采样调查数据,利用spss 18.0和arcgis9.3等软件,分析1982年以来珠江北江上游翁源县土壤表层p H的时空变化特征,结果表明:翁源县土壤表层p H总体分布特征为南高北低、东高西低,30年来大部分范围土壤表层有酸化的趋势,水稻土、菜园地、潮沙泥土有酸化的趋势,而黄壤、红壤、赤红壤、紫色土的p H有所上升.土壤类型不同、土地利用方式变化、农业施肥措施等是导致翁源县土壤表层酸化的主要原因之一.
According to soil test for fertilizer carried out by Wengyuan agriculture bureau and some data of the sec-ond soil survey in Wengyuan, topsoil pH in North River upstream of Wengyuan for 30 years were analyzed by spss 18.0 and arcgis 9.3 .The results showed：Topsoil pH in south Wengyuan and east Wengyuan is higher than that in the north and west.For 30 years, topsoil pH becomes more acidic throughout most of the ranges of Wengyuan.In all types of soil, pH of rice soil, vegetable soil and tidal sand soil tend to become more acidic, while topsoil pH of yellow soil, red soil, lateritic red soil and purple soil shows uptrend.Different type of soil, wide variety of land use and mixed farming of fertilization, were the most important causes of the more acidic topsoil pH in Wengyuan.
出处
《华南师范大学学报（自然科学版）》
CAS
北大核心
2014年第6期107-113,共7页
Journal of South China Normal University(Natural Science Edition)
基金
国家自然科学基金项目(41471147)
广东省自然基金项目(9151063101000046)
广东省软科学项目(2009B70300115)
华南师范大学学术骨干与团队培养专项(G21053)
关键词
土壤PH
土壤酸化
时空分布
珠江
pH of soil soil acidification time and space distribution the Pearl River
