[1]SHEN Jiayan,LI Xiaoying,YUAN Yong,et al.Response of Soil Enzymes to Different Elevations and Aspects in Naban Basin Nature Reserve[J].Research of Soil and Water Conservation,2018,25(01):111-119,125.
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Response of Soil Enzymes to Different Elevations and Aspects in Naban Basin Nature Reserve
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
25
Number of periods:
2018 01
Page number:
111-119,125
Column:
Public date:
2018-02-28
- Title:
- Response of Soil Enzymes to Different Elevations and Aspects in Naban Basin Nature Reserve
- Keywords:
- soil enzyme activity; elevation; slope direction; correlation
- CLC:
- S714.5
- DOI:
- -
- Abstract:
- We collected soil samples in River nature reserve on the basis of elevation and slope, analyzed the variations of the urine enzyme, protease, sucrose, catalase four main soil enzyme activity and the change of main nutrient indexes. The results showed that soil organic matter, the hydrolysis nitrogen content increased significantly with the increase of altitude; on sunny slope, total nitrogen contents showed the trends of decreasing with the increase of altitude from middle to both ends, and in shady slope, total nitrogen content increased with the increase of altitude; soil available P contents showed the decreasing trends with the increase of altitude from middle to both ends; protease activity was higher in low altitude than that in the high altitude, the surface catalase activity was less influenced by elevation, urease and sucrose activity fluctuated along with the elevation; soil organic matter, total nitrogen, hydrolyzed nitrogen, available phosphorus content were higher on the sunny slope than those on the shady slope; soil protease, sucrose, catalase activities were higher on shady slope than those on the sunny slope, soil urease activities in the soil layers were higher on sunny slope than those on the shady slope. The nutrient content and enzyme activity were higher in the surface that those in the deep layers. Correlation between soil enzyme activity and the fertility factor was significant, correlation between each soil enzyme activities were significant. Organic matter, total nitrogen, total phosphorus were the major factors influencing the activities of protease, followed by available phosphorus and hydrolysis nitrogen; total phosphorus, available phosphorus, hydrolyze nitrogen were the main factors affecting the activity of urease, followed by organic matter, total phosphorus, available potassium. Principal component analysis results showed that the protease and urease activity identified as of soil fertility index was feasible in the nature reserve area.
- References:
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1900-01-01