摘要
采用传统统计方法和地质统计学方法相结合 ,对面积约 80hm2 的奉贤区南十家村农田耕层土壤养分进行了空间变异特征分析。结果表明 ,土壤N、K、Zn普遍缺乏 ,土壤养分变异系数的大小次序为 :P >Zn >Mn >B >S >Fe >N >Cu >Mg >K >Ca ;许多土壤养分含量的空间变异结构明显 ,土壤Fe、P、K、B、Mn具有中等强度的空间相关特征 ,土壤OM、N、Ca、Mg、S、Cu、Zn具有较强的空间相关特征。
The spatial variation of farmland soil nutrients in about 80 hm2 farming zone of Nanshijia Village was studied by means of both traditional statistics and geo-statistics. The results showed that the soil was widely deficient in N,K and Zn. The descending order of variation coefficients of soil nutrients was P>Zn>Mn>B>S>Fe>N>Cu>Mg>K>Ca, and lots of variation structures of soil nutrients was distinct. There was a medium spatial correlation among the Fe,P,K,B and Mn of soil,and a strong spatial correlation among the OM,N,Ca,Mg,S,Cu and Zn of soil.
出处
《上海农业学报》
CSCD
2004年第3期78-81,共4页
Acta Agriculturae Shanghai
基金
PPI/PPIC资助项目
