您好,欢迎访问山西省农业科学院 机构知识库!

CARAGANA FABR. PROMOTES REVEGETATION AND SOIL REHABILITATION IN SALINE-ALKALI WASTELAND

文献类型: 外文期刊

作者: Zhang, Lizhen 1 ; Fan, JingJing 2 ; Meng, Qiuxia 3 ; Niu, Yu 4 ; Niu, Wei 1 ;

作者机构: 1.Shanxi Univ, Coll Life Sci, Taiyuan 030006, Peoples R China

2.Shanxi Univ, Inst Biotechnol, Taiyuan 030006, Peoples R China

3.Shanxi Acad Agr Sci, Inst Soil & Fertilizer, Taiyuan, Peoples R China

4.Shanxi Acad Agr Sci, Integrated Review Inst Agr Resources, Taiyuan, Peoples R China

关键词: plant species;spatial variation;soil chemical properties;sodium adsorption ratio;exchangeable sodium percentage

期刊名称:INTERNATIONAL JOURNAL OF PHYTOREMEDIATION ( 影响因子:3.212; 五年影响因子:3.275 )

ISSN: 1522-6514

年卷期: 2013 年 15 卷 1 期

页码:

收录情况: SCI

摘要: To determine how plantations of Caragana microphylla shrubs affect saline-alkali soil amelioration and revegetation, we investigated the vegetation and sampled soils from saline-alkali wasteland (SAW), perennial Caragana forestland (PCF), Caragana forest after fire disturbance (CFF). Results showed that with the development of Caragana Fabr., highly dominant species of Poaceae family, including Elymus dahuricus, Thermopsis lanceolata, Stipa tianschanica, died out in PCF. Moreover, Papilionaceae family, including Lespedeza indica, Oxytropis psammocharis, and Astragalus scaberrimus, was established both in PCF and CFF. Phytoremediation of saline-alkali wasteland (SAW) was achieved by plantation, resulting in the reduced soil pH, sodium adsorption ratio, exchangeable sodium percentage, salinity, and Na+ concentration around Caragana shrubs. Greater amounts of soil organic, total nitrogen, ammonium nitrogen, available phosphorus, and available potassium were observed in PCF topsoil than in SAW topsoil. The concentration of mineralized N in PCF soil was significantly lower than that in SAW soil at all sampled depths, indicating that Caragana shrubs were just using N and therefore less measured in soils. Fire disturbance resulted in decreased soil pH and salinity, but increased organic content, total nitrogen, and ammonium nitrogen. The improved soil parameters and self-recovery of shrubs indicated that Caragana shrubs were well established after burning event.

  • 相关文献
作者其他论文 更多>>