| Autor: |
Chun-Xia, Zheng, Bo-Lang, Chen, Wen-Quan, Wang, Xin-Pin, Zhu, Hong-Tao, Jia, Jia-Qin, Ye |
| Rok vydání: |
2011 |
| Předmět: |
|
| Zdroj: |
Guang pu xue yu guang pu fen xi = Guang pu. 31(4) |
| ISSN: |
1000-0593 |
| Popis: |
Through the method of simulating the heavy metal pollution in farmland, the graphite oven (GF-990) atomic absorption was used for analyzing the regulations of the earthworms inducing the soil Cd2+ absorbed by the perennial ryegrass. The result indicated: (1) under the circumstance of the soil Cd2+ density of 3-6 mg x kg(-1), the positive relevance appeared extremely remarkably that the contents of Cd2+ in underground portions of the perennial ryegrass relate to the earthworm quantity (r = 0.883 2-0.986 2), but in the portion above ground the positive relevance did not appear extremely remarkably (r = 0.345 5-0.325 4); And the negative relevance appeared remarkably that the contents of Cd2+ in the soil relate to the earthworm quantity (r = -0.588 7(-) -0.678 4). (2) Under the conditions of isometric number of earthworms, the more the density of Cd2+ in the soil, the more the increase of Cd2+ in both portions under and above ground of perennial ryegrass. (3) Under the same soil environment, the negative relevance appeared that the number of earthworms relates to the contents of Cd2+ in the earthworms (r = -0.982 0(-) -0.991 6). |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
|
