| Effects of vegetation restoration on soil physical-chemical properties and activities of soil enzyme in the gully region of the Loess Plateau |
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| DOI：10.7606/j.issn.1000-7601.2010.06.12 |
| Key Words: vegetation restoration physical-chemical properties of soil soil enzyme activity |
| Author Name | Affiliation | | ZHANG Xiaopei | Farmland Irrigation Research Institute，Chinese Academy of Agricultural Sciences, Xinrxiang, He'nan 453003, China
The Research Center of Recrycle Agricultural Engineering and Technology of Shaanxi Province，Yangling，Shaanxi 712100，China | | YANG Gaihe | College of Agronomy, Northwest A&F University, Yangling, Shaanxi 712100, China
The Research Center of Recrycle Agricultural Engineering and Technology of Shaanxi Province，Yangling，Shaanxi 712100，China | | REN Guangxin | College of Agronomy, Northwest A&F University, Yangling, Shaanxi 712100, China
The Research Center of Recrycle Agricultural Engineering and Technology of Shaanxi Province，Yangling，Shaanxi 712100，China | | FENG Yongzhong | College of Agronomy, Northwest A&F University, Yangling, Shaanxi 712100, China
The Research Center of Recrycle Agricultural Engineering and Technology of Shaanxi Province，Yangling，Shaanxi 712100，China |
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| Abstract: |
| Both micro-experiment and conventional chemical methods were adopted to study the changes of soil
physical-chemical properties and soil enzyme activities under different vegetation restoration types . The results showed that compared with farmland，soil bulk density increased first and then declined, and pH declined at a range of 1.47%~ 5.52%; Soil organic matter content and total nitrogen increased by 9.76%~71.54% and 17.39%~62.32%; total
phosphorus declined except 30-year Robinia pseudoacacia; Available nutrients increased slightly. The activity of soil
Urease, Catalase，Alkaline phosphatase, and invertase all increased along with the vegetation rehabilitation ages, by
39%~229%，34%~96%, 25%~149% and 74%~250% as compared with the farmland. Enzyme activities were
positively related to soil organic carbon and total nitrogen. In the gully region of the Loess Plateau, vegetation restoration can ameliorate soil physical-chemical properties and increase enzyme activity. |
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