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| Effects of vegetation restoration on soil fertility of cutting-blank sand |
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| DOI：10.16768/j.issn.1004-874X.2016.10.014 |
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| Abstract: |
| Horqin sandy land after vegetation restoration was selected as the research object，by using the
field sampling investigation and laboratory testing method，the evolution characteristics of soil properties under
the regeneration trees，which located in the Pinus sylvestris var. Mongolica forest of the south edge of Horqin sandy
land，were studied. According to the fuzzy comprehensive evaluation，the soil organic matter，total nitrogen，total
phosphor，total potassium，alkaline nitrogen，available phosphorus and available potassium were select to evaluate
the soil fertility quality after vegetation restoration. The results showed that all the soil fertility indexes improved after
vegetation restoration. The increment in soil organic matter，total nitrogen and available potassium of Acer mono，
the increment in alkaline nitrogen and total potassium of Hemiptelea davidii and the increment in total soil phosphor，
available phosphorus of P. densiflora and P. sylvestris was the maximum. The effect of comprehensive improvement of
soil fertility for 4 types of vegetation restoration was in the order of A. mono（0.8735）> P. densiflora（0.6494）> H.
davidii（0.5618）> P. sylvestris（0.4814）. This result will provide scientific basis for the local ecological restoration. |
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