华南师范大学学报(自然科学版)
華南師範大學學報(自然科學版)
화남사범대학학보(자연과학판)
JOURNAL OF SOUTH CHINA NORMAL UNIVERSITY (NATURAL SCIENCE EDITION)
2014年
6期
107-113
,共7页
土壤pH%土壤酸化%时空分布%珠江
土壤pH%土壤痠化%時空分佈%珠江
토양pH%토양산화%시공분포%주강
pH of soil%soil acidification%time and space distribution%the Pearl River
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arcgis 9.3等软件,分析1982年以来珠江北江上游翁源县土壤表层pH的时空变化特征,结果表明:翁源县土壤表层pH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pH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.
基于翁源縣第二次土壤普查數據、測土施肥農業項目調查數據及實地採樣調查數據,利用spss 18.0和arcgis 9.3等軟件,分析1982年以來珠江北江上遊翁源縣土壤錶層pH的時空變化特徵,結果錶明:翁源縣土壤錶層pH總體分佈特徵為南高北低、東高西低,30年來大部分範圍土壤錶層有痠化的趨勢,水稻土、菜園地、潮沙泥土有痠化的趨勢,而黃壤、紅壤、赤紅壤、紫色土的pH有所上升.土壤類型不同、土地利用方式變化、農業施肥措施等是導緻翁源縣土壤錶層痠化的主要原因之一.
기우옹원현제이차토양보사수거、측토시비농업항목조사수거급실지채양조사수거,이용spss 18.0화arcgis 9.3등연건,분석1982년이래주강북강상유옹원현토양표층pH적시공변화특정,결과표명:옹원현토양표층pH총체분포특정위남고북저、동고서저,30년래대부분범위토양표층유산화적추세,수도토、채완지、조사니토유산화적추세,이황양、홍양、적홍양、자색토적pH유소상승.토양류형불동、토지이용방식변화、농업시비조시등시도치옹원현토양표층산화적주요원인지일.
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.