首页 | 本学科首页   官方微博 | 高级检索  
     检索      

保水剂对土壤孔隙影响的定量分析
引用本文:杨永辉,武继承,韩庆元,何方,韩伟锋,杨先明.保水剂对土壤孔隙影响的定量分析[J].中国水土保持科学,2011,9(6):88-93.
作者姓名:杨永辉  武继承  韩庆元  何方  韩伟锋  杨先明
作者单位:1. 河南省农业科学院植物营养与资源环境研究所,450002,郑州;农业部作物高效用水原阳科学观测站,453514,河南原阳
2. 武警河南总队医院,450052,郑州
3. 郑州锦荣生物科技有限公司,450002,郑州
基金项目:国家863节水农业项目“绿色环保多功能保水制剂”(2006AA100215); 河南省重公益性科研项目“河南省潮土区中低产田增产关键技术研究与示范”(081100911600); 河南省杰出青年基金项目“保水剂应用对土壤环境的影响研究”(104100510024)
摘    要:为探明保水剂不同用量对施入土层土壤孔隙特征及其分布的影响,采用CT扫描法研究盆栽试验条件下小麦收获时的土壤孔隙特征。结果表明:1)施用保水剂均提高了土壤剖面不同土层的土壤孔隙数目、孔隙度和孔隙成圆率。2)随保水剂用量的增加,各土层平均总孔隙数、总孔隙度及成圆率提高;但保水剂用量过高,其总孔隙数增加不明显,总孔隙度和孔隙成圆率降低,但仍高于对照(CK)。3)最终的小麦生物量和籽粒产量表现为54 mg/kg>81 mg/kg>27 mg/kg>CK。因此,施用保水剂改善了土壤孔隙特征,促进了小麦的生长和产量的提高。各处理中以54 mg/kg保水剂用量对于小麦生物量及产量的提高最为显著,分别较对照提高13.1%和22.2%。

关 键 词:保水剂  CT扫描  土壤孔隙  定量分析

Quantitative analysis of the effect of water-retaining agent on soil pores
Yang Yonghui,Wu Jicheng,Han Qingyuan,He Fang,Han Weifeng,Yang Xianming.Quantitative analysis of the effect of water-retaining agent on soil pores[J].Science of Soil and Water Conservation,2011,9(6):88-93.
Authors:Yang Yonghui  Wu Jicheng  Han Qingyuan  He Fang  Han Weifeng  Yang Xianming
Institution:Yang Yonghui1,2,Wu Jicheng1,Han Qingyuan3,He Fang1,Han Weifeng1,Yang Xianming4(1.Institute of Plant Nutrition & Resource Environment,Henan Academy of Agricultural Sciences,450002,Zhengzhou,2.Yuanyang Scientific Observatory of Crops Using Water,Ministry of Agriculture,453514,Yuanyang,Henan,3.Corps Hospital of Armed Police in Henan,450052,4.Zhengzhou Jinrong Bio-technology Co.,Ltd,Zhengzhou: China)
Abstract:In order to ascertain the effect of water-retaining agent on the characteristics and distribution of soil pore in different soil layers,the technique of CT(Computed Tomography) scan was used to study characteristics of soil porosity under potted experiment when Triticum aestivum L.harvesting.The results indicated that soil pore number,porosity and pore round rate increased after application of water-retaining agent,which promoted transmission of soil moisture and nutrition.With the increase of applied water...
Keywords:water-retaining agent  CT(Computed Tomography) scan  soil pores  quantitative analysis  
本文献已被 CNKI 维普 万方数据 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号