LONG-TERM EFFECTS OF LIMING ON THE FINE-ROOT STANDING CROP OF PICEA-ABIES AND PINUS-SYLVESTRIS IN RELATION TO CHEMICAL-CHANGES IN THE SOIL

被引：34

作者：

CLEMENSSONLINDELL, A

PERSSON, H

机构：

[1] The Swedish University of Agricultural Sciences, Department of Ecology and Environmental Research, Uppsala, S-750 07

来源：

SCANDINAVIAN JOURNAL OF FOREST RESEARCH | 1993年 / 8卷 / 03期

关键词：

FINE ROOT; LIMING; MINERAL ELEMENTS; NORWAY SPRUCE; SCOTS PINE; PH; RHIZOSPHERE; ROOT BIOMASS; SPECIFIC ROOT LENGTH;

D O I：

10.1080/02827589309382785

中图分类号：

S7 [林业];

学科分类号：

0829 ; 0907 ;

摘要：

The long-term effects of lime application on fine roots of Norway spruce, Picea abies (L.) Karst, and Scots pine, Pinus sylvestris (L.), have been studied in five experimental forest stands subjected to different lime applications 5 to 18 years before the present study was undertaken. The effects of liming does not seem to significantly influence fine-root development in forest stands in the long term. The only response to liming in measured root variables was a tendency to increased specific root length (SRL = fine-root length/fine-root dry weight, m/g). A correlation between increased SRL, decreased root biomass and increased stem volume growth was indicated. Changes in water extractable amounts of mineral elements-P, K, Ca, Mg, Mn, S, Al and Fe-in bulk soil and rhizosphere soil from the mineral soil layers were studied in a control area and an area treated with 3830 kg CaCO3 ha-1. Few significant differences were found between treatments, and then mainly in the case of Ca.

引用

页码：384 / 394

页数：11

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