WBC-VIII-Vol.4 – Resources – Forestry, Plantations and ... - BambuSC
WBC-VIII-Vol.4 – Resources – Forestry, Plantations and ... - BambuSC
WBC-VIII-Vol.4 – Resources – Forestry, Plantations and ... - BambuSC
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Panting<br />
time<br />
Table 1. Soil properties changed after Lei bamboo plantation with various planting years<br />
pH OC<br />
(g.kg -1 )<br />
TN<br />
(g.kg -1 )<br />
TP<br />
(g.kg -1 )<br />
TK<br />
(g.kg -1 )<br />
AP<br />
(mg.kg -1 )<br />
AK<br />
(mg.kg -1 )<br />
CEC<br />
(cmol.kg -<br />
1 )<br />
0 5.71 a 31.0 b 2.02 b 0.500 d 11.11 a 7.14 d 40.5c 13.4 c<br />
1 5.37 a 25.5 c 1.86 b 0.735 c 11.50 a 38.3 cd 62.3 bc 15.7 c<br />
5 4.76 b 25.0 c 1.71 b 0.741 c 12.41 a 54.1 c 75.9 abc 14.3 c<br />
10 4.33 b 33.1 b 2.07 b 1.280 b 11.06 a 171.8 b 110.8 ab 19.2 b<br />
15 3.85 c 79.2 a 4.61 a 2.005 a 11.03 a 457.6 a 131.9 a 32.5 a<br />
Time<br />
yr<br />
*Different letters represent 5% significance with Duncan’s test.<br />
Table 2. Soil Al forms in surface layers of paddy <strong>and</strong> bamboo soils (mg kg -1 )<br />
Alex<br />
(mg kg -1 )<br />
Ald<br />
(mg kg -1 )<br />
Alp<br />
(mg kg -1 )<br />
Alo<br />
(mg kg -1 )<br />
AlT<br />
(g kg -1 )<br />
Dissociation<br />
degree<br />
Ald/AlT(%)<br />
0 3.85 a 1404 a 344 b 2088 a 54.1 b 2.60 1.49<br />
1 4.25 a 1583 ab 245 a 2073 a 54.0 b 2.93 1.31<br />
5 86.6 b 1870 bc 545 c 2217 a 54.3 b 3.45 1.19<br />
10 91.0 b 1860 c 612 d 2276 a 52.5 b 3.55 1.23<br />
15 197.6 c 1800 c 653 e 2210 a 49.4 a 3.67 1.23<br />
*Different letters represent 5% significance with Duncan’s test.<br />
Activation<br />
degree<br />
Alo/Ald(%)<br />
<strong>VIII</strong> World Bamboo Congress Proceedings Vol 4-64