期刊论文

Li, Q.

中文

烟草科技

1002-0861

2017

50

9

15-22

10.16135/j.issn1002-0861.2016.0569

云南省烟草公司科技项目“文山烟叶特色风格定位研究及品牌导向型基地建设开发”（2011YN73）；

本校为第一且通讯机构

为研究文山烟区土壤交换性钙、镁含量及其比值的空间分布情况和影响因素,利用GPS技术在文山烟区采集了276份土壤样品,测定了其交换性钙、镁含量,并应用地统计学和经典统计学研究其空间分布特征和影响因素。结果表明:①文山植烟土壤交换性钙、镁含量丰富,平均含量分别为2 389.15和213.95 mg. kg~(-1),但钙镁比失调较为严重,有17.10%的区域可能造成烟株生理性缺钙(钙镁比10)。空间特征分析表明交换性钙、镁及其比值分布特征明显。②典型相关性分析表明文山烟区土壤交换性钙、镁含量及其比值受海拔高度、土壤pH以及土壤全磷的影响显著。逐步回归分析表明土壤pH对三者的影响最大。③土壤交换性钙、镁...

To investigate the spatial distributions and influencing factors of exchangeable Ca and Mg contents and Ca/Mg ratio in soils from Wenshan tobacco-growing areas, 276 representative soil samples were collected from Wenshan with Global Positioning System(GPS)technique. The contents of exchangeable Ca and Mg in soil samples were determined, and their spatial distributions and influencing factors were studied with geostatistics and classical statistical methods. The results showed that: 1)The contents of exchangeable Ca and Mg were rich in Wenshan s...