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2. DRIVERS OF SOIL RESPIRATION OF ROOT AND MICROBIAL ORIGIN ON VARIOUS TIME SCALES IN MEDITERRANEAN GRASSLAND 35
Page 1: !!"% ( !"+ "!$ (!'! ,' - !"+ "!$ ##
Page 4 and 5: explain diurnal and seasonal change
Page 6 and 7: sull’intensità del flusso respir
Page 8 and 9: 8 3.2.4. Data analyses and definiti
Page 11 and 12: 1. INTRODUCTION AND OVERVIEW 11
Page 13 and 14: times as much carbon as the terrest
Page 15 and 16: Fig. 3 Different soil C pools with
Page 17 and 18: 1.3. Soil respiration sources Soil
Page 19 and 20: conditions, like soil type, plants
Page 21 and 22: For grasslands, the nature, frequen
Page 23 and 24: (a) (b) (c) Fig.7 Amplero (AQ, Ital
Page 25 and 26: magnitude of root respiration and o
Page 27 and 28: efficiency, indicating future posit
Page 29 and 30: approaches for studying of the cont
Page 31 and 32: Houghton R.A., 2003. Revised estima
Page 33: Vleeshouwers L.M., Verhagen A. 2002
Page 37 and 38: ecosystems soil respiration on annu
Page 39 and 40: • Another half of the sampled and
Page 41 and 42: 2.3. Results CO 2 (µmol m -2 s -1
Page 43 and 44: AG biomass (g m -2 ) 400 350 300 25
Page 45 and 46: Ts ( o C), SWC (%) 32.5 30 27.5 25
Page 47 and 48: CO 2 (µmol m -2 s -1 ) 10 9 8 7 6
Page 49 and 50: The influence of moisture on soil r
Page 51 and 52: Ra vs.GPP GPP in h Beta B t p-level
Page 53 and 54: In 2008 the eddy covariance station
Page 55 and 56: Residuals (µmol m -2 s -1 ) Predic
Page 57 and 58: 2.4.2. Diurnal, seasonal and inter-
Page 59 and 60: length could determine the range in
Page 61 and 62: References Adams J.M., Faire H., Fa
Page 63 and 64: Raich J.W., Potter C.S., Bhagawati
Page 66 and 67: 66 3. CONTRIBUTION OF PHOTOSYNTHETI
Page 68 and 69: quantities and changes of label in
Page 70 and 71: 3.2.2. In situ pulse labeling proce
Page 72 and 73: 72 Fig. 3 Chambers for CO2 accumula
Page 74 and 75: 3.2.4. Data analyses and definition
Page 76 and 77: covariance. Pearson correlations we
Page 78 and 79: 78 label distribution between compo
Page 80 and 81: 80 correlation coefficient 1.0 0.8
Page 82 and 83: 3.4. Discussion 3.4.1. Speed of C c
Page 84 and 85:
3.4.2. Allocation patterns 84 Kuzya
Page 86 and 87:
References Andrews J.A., Harrison K
Page 88:
Schuur E.A, Trumbore S.E., 2006. Pa
Page 91 and 92:
4.1. Introduction Land-use changes
Page 93 and 94:
The soil is classified as Haplic Ph
Page 95 and 96:
4.2.3. Soil chemical and biochemica
Page 97 and 98:
Soil enzymatic activity Criteria fo
Page 99 and 100:
CO 2 (µmol m -2 s -1 ) 10 9 8 7 6
Page 101 and 102:
Ts ( o C) SWC (%) 45 40 35 30 25 20
Page 103 and 104:
Microbial respiration was also affe
Page 105 and 106:
µg Biomass C g -1 µg C g -1 70 60
Page 107 and 108:
MR 24 (µg C-CO 2 g -1 d -1 ) C m (
Page 109 and 110:
enzymatic activity (nmoli MUB/AMC g
Page 111 and 112:
elax of the microbial community in
Page 113 and 114:
(C0k) was negatively affected by th
Page 115 and 116:
These factors are very important fo
Page 117 and 118:
Leake J.R., Johnson D., Donnelly D.
Page 119 and 120:
Zhou Z., Wan S., Luo Y., 2007. Sour
Page 121 and 122:
5. FOCUSING ON ROOT-DERIVED RESPIRA
Page 123 and 124:
oxidation of carbohydrates with sub
Page 125 and 126:
5.2.3. 14 C labeling and 15 N appli
Page 127 and 128:
5.3. Results 5.3.1. Aboveground and
Page 129 and 130:
CO 2 efflux intensity (% of assimil
Page 131 and 132:
N as a 100% reference, the respirat
Page 133 and 134:
The distribution of N between shoot
Page 135 and 136:
CO2 efflux from unplanted soil had
Page 137 and 138:
and Gosz, 1986; Ross et al., 2001;
Page 139 and 140:
quantity of recently assimilated 14
Page 141 and 142:
5.4.5. Effect of growing stage on r
Page 143 and 144:
References Agrell D., Larsson C.M.,
Page 145 and 146:
Wardle D.A., 1992. A comparative as
Page 147 and 148:
6. CONTRIBUTION OF ROOT RESPIRATION
Page 149 and 150:
plant organs (roots) or soil compon
Page 151 and 152:
6.2.2. Combined method: SIR+compone
Page 153 and 154:
the respiration response of microbe
Page 155 and 156:
Fig. 6 Partitioning obtained by mes
Page 157 and 158:
Fig. 9 Contribution of root and mic
Page 159 and 160:
The estimate of root and microbial
Page 161 and 162:
activity of the coarse roots, which
Page 163 and 164:
References Azcon-Bieto J., Lambers
Page 165 and 166:
Saglio P.H., Pradet A., 1980. Solub
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