生物炭（BC）對(duì)于水稻土壤有機(jī)質(zhì)（SOM）分解的相關(guān)影響研究十分有限。本研究旨在研究水稻土中添加新/老生物炭后對(duì)葡萄糖的激發(fā)效應(yīng)的影響。試驗(yàn)共設(shè)置十六個(gè)處理。在室內(nèi)培養(yǎng)開始前,采集未施加與施加生物炭一年后的田間土壤作為試驗(yàn)樣品。實(shí)驗(yàn)處理有:不施加生物炭的空白對(duì)照處理:control;施加老生物炭處理:aged-BC;同時(shí)施加老/新生物炭處理:A/F-BC;施加新生物炭處理:fresh-BC,各處理在施加或不施加14C標(biāo)記的葡萄糖條件下調(diào)節(jié)土壤水分進(jìn)行培養(yǎng)試驗(yàn),土壤水分條件分為濕潤(rùn)和淹水兩種狀態(tài)。與對(duì)照相比,老生物炭土壤CO₂排放量相對(duì)較高（平均26%）,而新生物炭的添加降低了新生物炭土壤和新+老生物炭土壤CO₂的排放量,分別為23和21%。在濕潤(rùn)和淹水條件下,老生物炭增加了微生物數(shù)量,β葡萄糖苷性,木聚糖酶和纖維二糖水解酶酶潛勢(shì),而在淹水條件下新生物炭處理降低了微生物量和酶潛勢(shì)。在濕潤(rùn)和淹水條件下,對(duì)照組添加葡萄糖后出現(xiàn)成正激發(fā)效應(yīng),分別為58和102μg C g-1。新生物炭處理中葡萄糖的添加也導(dǎo)致正激發(fā)效應(yīng),在濕潤(rùn)和淹水條件下分別為34和... 

【文章來源】：南京農(nóng)業(yè)大學(xué)江蘇省 211工程院校 教育部直屬院校

【文章頁(yè)數(shù)】：50 頁(yè)

【學(xué)位級(jí)別】：碩士

【文章目錄】：
ABBREVIATION
ABSTRACT
摘要
Chapter 1: Literature review
    1.1 The importances of biochars in agriculture and climate change
    1.2 The stability and decomposition of biochar in various
    1.3 The mineralization of LOM in biochar amended soil
    1.4 Different function of fresh and aged biochars in soil
    1.5 Objectives and hypothesis
Chapter 2: Materials and methods
    2.1 Soil sampling and preparation
    2.2 Experimental design and treatments
    2.3 Incubation and sampling
    2.4 Microbial biomass and DOC measurement
    2.5 Enzyme assays
    2.6 Chemical and isotopic analyses
    2.7 Calculations and statistical analysis
Chapter 3: The effects of aged and fresh biochars on glucose-induced priming and microbialactivities in paddy soil
    3.1 Soil CO_2 efflux
    3.2 Glucose decomposition
    3.3 Microbial biomass and DOC
    3.4 Enzyme activity (V_(max))
    3.5 PEs
Chapter 4: Discussion
    4.1 Effect of BC addition on the total CO_2 efflux
    4.2 Effect of BC addition on glucose mineralization
    4.3 Effects of BC addition on microbial biomass
    4.4 Effects of BC addition on enzyme activities
    4.5 Effects of BC addition on PEs
    4.6 Effects of water regime on the total CO_2 efflux and PE
Chapter 5: Conclusions
References
ACKNOWLEDGEMENTS
CURRICULUM VITAE


【參考文獻(xiàn)】：
期刊論文
[1]試論我國(guó)農(nóng)業(yè)和農(nóng)村有機(jī)廢棄物生物質(zhì)碳產(chǎn)業(yè)化[J]. 潘根興,林振衡,李戀卿,張阿鳳,鄭金偉,張旭輝.  中國(guó)農(nóng)業(yè)科技導(dǎo)報(bào). 2011(01)



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