Physico-Chemical Properties and Metal Speciations of Rhizosphere and Bulk Soil of Taiwan Red Pine in Ta-Ta-Chia Area
碩士 === 國立臺灣大學 === 森林學研究所 === 87 === Abstract The rhizosphere of Taiwan red pine in the Ta-Ta-Chia area were selected for this study. The vegetation and physico-chemical properties of soil in the site were studied. The rhizosphere and bulk soils were studied for their physico-chemical prop...
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| Other Authors: | |
| Format: | Others |
| Language: | zh-TW |
| Published: |
1999
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| Online Access: | http://ndltd.ncl.edu.tw/handle/93987384588786834996 |
| Summary: | 碩士 === 國立臺灣大學 === 森林學研究所 === 87 === Abstract
The rhizosphere of Taiwan red pine in the Ta-Ta-Chia area were selected for this study. The vegetation and physico-chemical properties of soil in the site were studied. The rhizosphere and bulk soils were studied for their physico-chemical properties. The mutiple-step extraction method for the rhizosphere and bulk soils show the metal-bound fractions and evaluate their differences.
Taiwan red pine is major species in this sites. Soil texture is clay loam and strong acid soil in this site. The moisture, organic matter and exchange cations were significantly difference with the depth, but the available phosphate showed no significantly difference. The pH values of rhizosphere soils were lower than the bulk soils, however its exchange cations are greater than bulk soils. The Al distribution of metal fractionations indicate that organic-bound and residual fractions are major species. The Fe fractions indicate that metal-organic complex-bound and crystalline Fe oxide-bound are major species. The Cu species indicate that easily reducible metal oxide-bound and amorphous mineral colloid-bound are the major species. The residual fractions of Zn and Mn are the major species.
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