The effect of biochar loading rates on soil fertility, soil biomass, potential nitrification, and soil community metabolic profiles in three different soils

被引:63
作者
Abujabhah, Ibrahim S. [1 ]
Doyle, Richard [1 ]
Bound, Sally A. [1 ]
Bowman, John P. [1 ]
机构
[1] Univ Tasmania, Tasmanian Inst Agr, Private Bag 98, Hobart, Tas 7001, Australia
关键词
Biochar; Community metabolic profiles; Nitrification; Soil biomass; Soil fertility; LEVEL PHYSIOLOGICAL PROFILES; CHEMICAL-PROPERTIES; MICROBIAL ACTIVITY; ORGANIC-MATTER; CARBON; AMENDMENT; CHARCOAL; IMPACT; ABUNDANCE; AMMONIUM;
D O I
10.1007/s11368-016-1411-8
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Biochar is increasingly being used as a soil amendment to both increase soil carbon storage and improve soil chemical and biological properties. To better understand the shorter-term (10 months) impacts of biochar on selected soil parameters and biological process in three different textured soils, a wide range of loading rates was applied. Biochar derived from eucalypt green waste was mixed at 0, 2.5, 5, 10 % (wt/wt) with a reactive black clay loam (BCL), a non-reactive red loam (RL) and a brown sandy loam (BSL) and placed in pots exposed to the natural elements. After 10 months of incubation, analysis was performed to determine the impacts of the biochar rates on the different soil types. Also, microbial biomass was estimated by the total viable counts (TVC) and DNA extraction. Moreover, potential nitrification rate and community metabolic profiles were assayed to evaluate microbial function and biological process in biochar-amended soils. The results showed that biochar additions had a significant impact on NH4 and NO3, total C and N, pH, EC, and soil moisture content in both a soil type and loading-dependent manner. In the heavier and reactive BCL, no significant impact was observed on the available P and K levels, or the total exchangeable base cations (TEB) and CEC. However, in the other lighter soils, biochar addition had a significant effect on the exchangeable Al, Ca, Mg, and Na levels and CEC. There was a relatively limited effect on microbial biomass in amended soils; however, biochar additions and its interactions with different soils reduced the potential nitrification at the higher biochar rate in the two lighter soils. Community metabolic profile results showed that the effect of biochar on carbon substrate utilization was both soil type and loading dependent. The BCL and BSL showed reduced rates of substrate utilization as biochar loading levels increased while the opposite occurred for the RL. This research shows that biochar can improve soil carbon levels and raise pH but varies with soil type. High biochar loading rates may also influence nitrification and the function and activity of microbial community in lighter soils.
引用
收藏
页码:2211 / 2222
页数:12
相关论文
共 46 条
[1]   Rapid method of determining factors limiting bacterial growth in soil [J].
Aldén, L ;
Demoling, F ;
Bååth, E .
APPLIED AND ENVIRONMENTAL MICROBIOLOGY, 2001, 67 (04) :1830-1838
[2]   Potential mechanisms for achieving agricultural benefits from biochar application to temperate soils: a review [J].
Atkinson, Christopher J. ;
Fitzgerald, Jean D. ;
Hipps, Neil A. .
PLANT AND SOIL, 2010, 337 (1-2) :1-18
[3]   Wildfire and Charcoal Enhance Nitrification and Ammonium-Oxidizing Bacterial Abundance in Dry Montane Forest Soils [J].
Ball, P. N. ;
MacKenzie, M. D. ;
DeLuca, T. H. ;
Holben, W. E. .
JOURNAL OF ENVIRONMENTAL QUALITY, 2010, 39 (04) :1243-1253
[4]   Effects of biochar, earthworms, and litter addition on soil microbial activity and abundance in a temperate agricultural soil [J].
Bamminger, Chris ;
Zaiser, Natalie ;
Zinsser, Prisca ;
Lamers, Marc ;
Kammann, Claudia ;
Marhan, Sven .
BIOLOGY AND FERTILITY OF SOILS, 2014, 50 (08) :1189-1200
[5]  
Basso Andres S., 2013, GCB Bioenergy, V5, P132, DOI 10.1111/gcbb.12026
[6]   Impact of artificial root exudates on the bacterial community structure in bulk soil and maize rhizosphere [J].
Baudoin, E ;
Benizri, E ;
Guckert, A .
SOIL BIOLOGY & BIOCHEMISTRY, 2003, 35 (09) :1183-1192
[7]   Gross nitrogen mineralization-, immobilization-, and nitrification rates as a function of soil C/N ratio and microbial activity [J].
Bengtsson, G ;
Bengtson, P ;
Månsson, KF .
SOIL BIOLOGY & BIOCHEMISTRY, 2003, 35 (01) :143-154
[8]   Activated carbon amendments to soil alters nitrification rates in Scots pine forests [J].
Berglund, LM ;
DeLuca, TH ;
Zackrisson, O .
SOIL BIOLOGY & BIOCHEMISTRY, 2004, 36 (12) :2067-2073
[9]   Municipal solid waste compost dose effects on soil microbial biomass determined by chloroform fumigation-extraction and DNA methods [J].
Bouzaiane, Olfa ;
Cherif, Hanene ;
Ayari, Fethia ;
Jedidi, Naceur ;
Hassen, Abdennaceur .
ANNALS OF MICROBIOLOGY, 2007, 57 (04) :681-686
[10]   Biochar characteristics and application rates affecting corn growth and properties of soils contrasting in texture and mineralogy [J].
Butnan, Somchai ;
Deenik, Jonathan L. ;
Toomsan, Banyong ;
Antal, Michael J. ;
Vityakon, Patma .
GEODERMA, 2015, 237 :105-116