NITRIFICATION IN DUTCH HEATHLAND SOILS .2. CHARACTERISTICS OF NITRATE PRODUCTION

被引:52
作者
DEBOER, W
GUNNEWIEK, PJAK
TROELSTRA, SR
机构
[1] Institute for Ecological Research, Heteren, 6666 ZG
关键词
acetylene; heathland; humus; nitrification patterns; pH; urea;
D O I
10.1007/BF00014425
中图分类号
S3 [农学(农艺学)];
学科分类号
0901 ;
摘要
Some characteristics of nitrification in 41 humus samples of Dutch heathlands were studied. Most of the acid humus samples (30) showed accumulation of nitrate during a 4-week incubation of field-moist material. In these samples net nitrate production was completely blocked by 0.06% acetylene indicating that nitrification was probably of a chemolithotrophic nature. From a comparison of the net production of nitrate in humus suspensions at pH 4 and pH 6 a differentiation into four patterns could be made: I. No nitrate production at either pH value studied (12 samples) II. Acid-sensitive nitrate production (3 samples) III. Acid-tolerant, pH-dependent nitrate production (10 samples) IV. Acid-tolerant, pH-independent nitrate production (16 samples) The results show that acid-tolerant, chemolithotrophic nitrification is widespread among Dutch heathland soils. Absence of potential net nitrate production in humus samples is most likely caused by limitations in the supply of ammonium or oxygen. © 1990 Kluwer Academic Publishers.
引用
收藏
页码:193 / 200
页数:8
相关论文
共 16 条
[1]   IDENTIFICATION OF HETEROTROPHIC NITRIFICATION IN STRONGLY ACID LARCH HUMUS [J].
ADAMS, JA .
SOIL BIOLOGY & BIOCHEMISTRY, 1986, 18 (03) :339-341
[2]  
Berendse F., 1988, NUTRIENTENBALANS DRO
[3]  
BERTRU G, 1985, REV ECOL BIOL SOL, V22, P433
[4]   VERTICAL-DISTRIBUTION OF NITRIFICATION POTENTIAL IN AN ACID FOREST SOIL [J].
CLAYSJOSSERAND, A ;
LENSI, R ;
GOURBIERE, F .
SOIL BIOLOGY & BIOCHEMISTRY, 1988, 20 (03) :405-406
[5]   UREOLYTIC NITRIFICATION AT LOW PH BY NITROSOSPIRA SPEC [J].
DEBOER, W ;
LAANBROEK, HJ .
ARCHIVES OF MICROBIOLOGY, 1989, 152 (02) :178-181
[6]   2 TYPES OF CHEMOLITHOTROPHIC NITRIFICATION IN ACID HEATHLAND HUMUS [J].
DEBOER, W ;
GUNNEWIEK, PJAK ;
TROELSTRA, SR ;
LAANBROEK, HJ .
PLANT AND SOIL, 1989, 119 (02) :229-235
[7]  
DEBOER W, 1989, BIOCHEM, V21, P349
[8]   AN ACIDOPHILIC AND A NEUTROPHILIC NITROBACTER STRAIN ISOLATED FROM THE NUMERICALLY PREDOMINANT NITRITE-OXIDIZING POPULATION OF AN ACID FOREST SOIL [J].
HANKINSON, TR ;
SCHMIDT, EL .
APPLIED AND ENVIRONMENTAL MICROBIOLOGY, 1988, 54 (06) :1536-1540
[9]   EFFECT OF ACETYLENE ON AUTOTROPHIC AND HETEROTROPHIC NITRIFICATION [J].
HYNES, RK ;
KNOWLES, R .
CANADIAN JOURNAL OF MICROBIOLOGY, 1982, 28 (03) :334-340