紫色母岩不同粒级风化物钾素形态分配特征

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > 成都山地所知识仓储（2009年以前）

	紫色母岩不同粒级风化物钾素形态分配特征
	朱波
刊名	山地学报
	2003
卷号	21 期号:4 页码:482-486
关键词	不同粒级钾素形态紫色母岩风化物
其他题名	Distribution of Potassium Form in Different Class of Weathered Particles of Purple Rocks
合作状况	国内
中文摘要	通过自然风化分析研究了侏罗系蓬莱镇组(J3p)、沙溪庙组(J2s)、遂宁组(J3s)和白垩系城墙岩群(K1C)紫色母岩不同粒级风化物钾素形态,结果表明:其全钾随风化物粒级的增加而增大,>0 5mm的粒级,平均比<0 5mm粒级多0 4～8 95g/kg;水溶态钾平均含量均较高,变化在20 61～37 87mg/kg之间。且有随粒级增大而减小的趋势;遂宁组母岩交换性钾平均含量最高,为123 91mg/kg。城墙岩群母岩平均含量最低,仅60 07mg/kg,其钾素有效性最低。>2mm粒级风化物,其交换性钾含量较高;同一种母岩,非交换性钾含量高的集中在0 05～1mm粒级中,最低集中在2～10mm粒级中;粒级越大,其结构钾含量越高,紫色母岩风化过程中,结构钾也在不断释放,风化程度越高,其结构钾释放越多。
英文摘要	Natural weathering experiments and chemical analysis were conducted to study the distribution of potassium forms in the different class of weathered particles developed from the purplish rocks formed in the Jurassic (group penglaizhen-J3P , group shaximiao-J 2S , and group suining-J 3S ) and Cretaceous ( group chengqiangyan-K1C) period1 Results showed , total Kincreases along with the particle size, in which these in particles of > 0105mm were 014～8195 g/kg more than in particles of < 0105 mm1 Water soluble Kof weathered matters was as high as 20161 ～37187 mg/kg , which decreases along with particle size1 Exchangeable potassium of J 3S is 123191 mg/kg , highest in the four weathered matters, however that of K1C is 60107 mg/kg, lowest1 Exchangeable K of > 2 mm weathered particles is relatively high1 Meanwhile, non-exchangeable K is higher in the 0105～1 mm particles and lower in the 2～10 mm particle1 And the bigger particle is , the higher structural K there will be. The st ructural K released during the weathered course of purple rock. And the more extensive the purplish rock weathers, the more structural K releases.
资助信息	中国科学院知识创新工程重大项目(KZCX2-413); 四川省青年科技基金
语种	中文
公开日期	2011-05-11
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/3084]
专题	成都山地灾害与环境研究所_成都山地所知识仓储（2009年以前）成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室
推荐引用方式 GB/T 7714	朱波. 紫色母岩不同粒级风化物钾素形态分配特征[J]. 山地学报,2003,21(4):482-486.
APA	朱波.(2003).紫色母岩不同粒级风化物钾素形态分配特征.山地学报,21(4),482-486.
MLA	朱波."紫色母岩不同粒级风化物钾素形态分配特征".山地学报 21.4(2003):482-486.