Soil and environmental science dictionary

Ngày tải lên: 12/08/2014, 00:22

... by 1.609 0.9 14 0.3 04 0.3 04 1.0 0.3 04 25 .4 0.1 0 .40 5 4. 05 ¥ 1 0-3 2.590 4. 05 ¥ 103 9.29 ¥ 1 0-2 645 102.8 2.83 ¥ 1 0-2 1. 64 ¥ 1 0-5 35. 24 0. 946 28.3 3.78 2.96 x 1 0-2 0 .47 3 45 4 28 .4 0 .45 4 100 907 0.907 ... mm2 g-1 m2 kg-1 2.09 ¥ 1 0-2 1 .45 ¥ 1 0 -4 1 .45 ¥ 1 0 -4 Pressure megapascal, MPa (106 Pa) atmosphere bar megapascal, MPa (106 Pa) megagram, per...

Ngày tải lên: 12/08/2014, 00:22

... NY 10 016 , U.S.A tel: 21 2-6 9 6-9 000; fax: 21 2-6 8 5-4 540 Distribution and Customer Service Marcel Dekker, Inc., Cimarron Road, Monticello, New York 12 7 01, U.S.A tel: 80 0-2 2 8 -1 16 0; fax: 84 5-7 9 6 -1 772 ... Hemisphere Distribution Marcel Dekker AG, Hutgasse 4, Postfach 812 , CH-40 01 Basel, Switzerland tel: 4 1- 6 1- 2 6 0-6 300; fax: 4 1- 6 1- 2 6 0...

Ngày tải lên: 11/08/2014, 12:21

... 62. 9 521 63.9619 63.94 42 74.9311 79. 924 6 1599 9 62 1555 968 1455 1807 128 2 25 11 25 86 1676 23 83 20 99 25 09 27 97 1950 423 4 7887 9867 SAMPLE PREPARATION AND APPLICATIONS ICP-AES and ICP-MS are now used ... 53.9396 55.9349 62. 929 6 63. 929 1 63. 929 1 74. 921 6 79.9165 28 IV Interfering ion Nominal m/z 12 C2 N2 12 16 C O 14 16 N OH 15 16 N O 16 O2 12 16 C O2 32 16 S O...

Ngày tải lên: 11/08/2014, 12:21

... 1-Nitroso-2-naphthol, pH 6.9 Dimethylglyoxime, pH 8 .3 pH 2.8 with HCl 8-Hydroxyquinoline, pH 6.9 Catechol, pH 6.9 Ammonium pyrrolidone dithio-carbamate, pH 7 .3 À1. 13 À0.7 À1. 13 À0.27 À0. 53 À1.01 ... DP-CSV DP-ASV CSV DP-CSV CSV CSV DP-ASV CSV DP-CSV Zn DP-CSV Reagent Peak potential, V Limit of detection Alizarin Red S, pH 7.1 pH 2.8 with HCl Dimethylglyoxime, pH 8 .3 Catechol, pH 7...

Ngày tải lên: 11/08/2014, 12:21

... Sample Aniona 2 .5 mM HCI þ 2 .5 mM m-PDA.2HC1d m-PDH2þ R-HCO3 þ NaHCO3 ,R-HCO3 þ NaHCO3 R-HCO3 þ MA! R-A þ MHCO3 R-A þ NaHCO3! R-HCO3 þ NaA R-PDAH2þPADH2þ þ 2ClÀ , R-PDAH2þPDAH2þ þ 2C1À R-PDAH2 þ MA ... 2C1À! R-M þ PDAH2þ þ 2C1À þ A R-M þ PDAH2þ þ 2C1À! R-PDAH2 þ MC12 TM Copyright n 2004 by Marcel Dekker, Inc All Rights Reserved R-H þ HCl ,R-H þ HCl R-H þ MA!R-H þ MA R-M þ HCl!R-H þ MC1 2R...

Ngày tải lên: 11/08/2014, 12:21

... 1. 16 1.41 1.31–1.38 1.35–1.38 2.30–2.45 2.28–2.34 2.28–2.32 2. 26 2.29 2 .60 –2 .69 2 .63 –2.75 2 .62 –2 .69 2 .60 –2 .68 5 .65 6. 05 5 .68 –5. 86 5.77–5.84 1.29 1.33 1. 36 2. 36 2.31 2.29 2.28 2 .63 2 .68 2 .66 2 .64 ... CHN2000, CNS-2000, FP-2000; 144 Series; 400 Series 70-sec C Analyzer; CR-412; CHN -6 0 0, -8 00 & -1 000; FP-228N; IR-12; DC-12; CS- 46; TN-15; FP-228N; TC- 36; UO...

Ngày tải lên: 11/08/2014, 12:21

... 10) X-Ray Tube WD-XRF instruments are normally fitted with an x-ray tube of or kW (maximum power dissipation) and with a maximum operating potential of 60, 75 , or 100 kV Side-window and end-window ... 160 173 0 3000 1040 22.1 29.4 2390 148 298 449 35.8 655 85 1960 194 0.8 0 .7 0.2 8.1 1.0 0.3 0.6 0.2 0.3 2.3 0.4 0 .7 0.3 0.2 25 6.3 13.9 11.1 2.6 7. 7 4.5 5.5 3.9 3.5 3.9 2.0 12.0 7. 2...

Ngày tải lên: 11/08/2014, 12:21

... 129I (Muramatsu and Yoshida, 1995; Parry et al., 1995), 232Th and 238U (Edgington, 1967; Fakhi et al., 1 988 ), and 237Np (Ruf and Friedrich, 19 78; Byrne, 1 986 ; May and Pinte, 1 986 ) For the metal ... and 500 to 1500 keV, in which 89 Sr decays are measured Separation of 237Np and a-Emitting Isotopes of Pu and Analysis by ICP-MS and a-Spectrometry (Morris and Livens, 1...

Ngày tải lên: 11/08/2014, 12:21

... O’Leary ( 199 3), Nordt et al ( 199 6), Wada and Ueda ( 199 6), and Handley et al ( 199 9) Most of these indicate the magnitudes of fractionations when substrate availability is not limiting and other ... Scrimgeour and Robinson More sophisticated 15N techniques allow N fluxes through various soil and microbial pools to be derived (Powlson and Barraclough, 199 3; Hart and Myr...

Ngày tải lên: 11/08/2014, 12:21

... Harrison, and R.J Laughlin 1999 Measurements of N2O emissions from grassland soil using photo-acoustic infra-red spectroscopy, long-path infra-red spectroscopy, gas chromatography and continuous-flow ... system, and found mean flux rates between and 53 mg N2O-N mÀ2 hÀ1 in three pine forest ecosystems, and 8 102 mg N2O-N mÀ2 hÀ1 in a beech stand Weitz et al (1998) measured the emissi...

Ngày tải lên: 11/08/2014, 12:21

... different land-use types and the modeled fluxes (based on 3-D footprint and biophysical models) Such an approach is likely to be of increasing value in the real world where homogeneous extensive landscapes ... Fluxes above and within the canopy USB, Al and Rl are the net assimilatory and respiratory exchanges by the leaves The subscripts w, s, and r refer to respiratory fluxes from w...

Ngày tải lên: 11/08/2014, 12:21

... Deut Lebensm.-Rundsch 5 :123 129 Eriksson, M., A Swartling, and G Dalhammar 1998 Biological degradation of diesel fuel in water and soil monitored with solid-phase micro-extraction and GC-MS Appl ... Raoufi, and H Sharghi 2000 Solid phase extraction and determination of lead in soil and water samples using octadecyl silica membrane disks modified by bis[1-hydroxy-9,10-anthraquin...

Ngày tải lên: 11/08/2014, 12:21

... plantations and native vegetation on upland peaty gley soil and deep peat soils J Soil Sci 37 : 485 – 497 Klute, A., and W R Gardner 19 62 Tensiometer response time Soil Sci 93 : 20 4 20 7 Lang, ... S., and R F Miller 1968 Calibration and evaluation of a wide-range gravimetric method for measuring stress Soil Sci 106 : 22 5 23 1 Merrill, S D., and S L Rawlins 19 72 Fie...

Ngày tải lên: 11/08/2014, 15:20

Ngày tải lên: 11/08/2014, 15:20