[1]SONG Xinni,XU Zhonglin,LI Lu,et al.Responses of Stoichiometric Characteristics of Soil and Leaf Carbon and Nitrogen in Picea schrenkiana Forests to NDVI and Environmental Factors[J].Research of Soil and Water Conservation,2020,27(02):69-76.
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Responses of Stoichiometric Characteristics of Soil and Leaf Carbon and Nitrogen in Picea schrenkiana Forests to NDVI and Environmental Factors
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
27
Number of periods:
2020 02
Page number:
69-76
Column:
Public date:
2020-03-30
- Title:
- Responses of Stoichiometric Characteristics of Soil and Leaf Carbon and Nitrogen in Picea schrenkiana Forests to NDVI and Environmental Factors
- CLC:
- S714
- DOI:
- -
- Abstract:
- In order to clarify the supply of nutrient elements and the growth status of plants in different growing environments, we studied the response of stoichiometric characteristics of soil and leaf Carbon(C), nitrogen(N)to environmental factors at different altitudes, and the effect of contents of soil C, N on contents of leaf C and N by using multiple regression analysis. The results showed that the variation range of soil C were 15.86～84.14 g/kg and the average was 43.18 g/kg, and the variation range of soil N were 0.13～0.54 g/kg, and the average was 0.28 g/kg,the variation range of soil C:N was 70.86～343.90 and the average value was 83.22; and the variation ranges of leaf C, N were 321.90～598.96 g/kg and 0.69～17.07 g/kg, respectively, and the average values were 471.98, 6.71 g/kg, respectively, the variation range of leaf C:N were 28.49～217.10, and the average was 83.22; there were no significant differences in stoichiometric characteristics of C and N of soil and leaf with elevation except for soil N and leaf C; the multiple regression showed that annual mean temperature(MAT)and annual precipitation(MAP)had significant effects on soil C and N, but the main contribution came from MAT, and the effects of aspect and NDVI on soil C and N were significant, but the response of soil C:N to MAT, MAP aspect and NDVI was not insignificant, the correlation between leaf C, N and MAT, MAP was no significant, but there was significant correlation between leaf C and NDVI; There was significant response of leaf C, N to soil C, N, however, there was no significant correlation between leaf C:N and environmental factors and soil C and N stoichiometry characteristics.
- References:
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Last Update:
2020-02-25