VESICULAR-ARBUSCULAR MYCORRHIZA (VAM) FUNGAL POPULATIONS IN A XERIC TORRIORTHENT RECEIVING URBAN REFUSE

被引：20

作者：

ROLDAN, A

ALBALADEJO, J

机构：

[1] Unidad Estructural de Recursos Naturales, Centro de Edafología y Biología Aplicada del Segura (CSIC), 30080 Murcia

来源：

SOIL BIOLOGY & BIOCHEMISTRY | 1993年 / 25卷 / 04期

关键词：

D O I：

10.1016/0038-0717(93)90070-R

中图分类号：

S15 [土壤学];

学科分类号：

0903 ; 090301 ;

摘要：

Experiments to assess changes in native VAM fungal populations after amendment of soil with different amounts of urban refuse (UR), were made in plots located on a highly eroded semiarid soil. Mycorrhizal populations, measured as number of spores, root colonization percentages and infective propagules decreased significantly during the first year after amendment. VAM fungi increased in the third year after addition although number of spores remained lower than controls in those experimental plots with larger UR dose additions. The observed variations in VAM fungal populations could not be attributed to an increase in fertility after addition. Other features such as changes in plant species composition or inhibitory effects of the UR used may be the determinants of VAM fungal populations.

引用

页码：451 / 456

页数：6

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