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[1]MA Jingyong,ZHANG Yuzhen,ZHOU Bo,et al.Research on Soil Respiration in Different Ages of Robinia pseudoacacia in the Loess Plateau[J].Research of Soil and Water Conservation,2015,22(03):98-104,110.

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Research on Soil Respiration in Different Ages of Robinia pseudoacacia in the Loess Plateau

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 22 Number of periods: 2015 03 Page number: 98-104,110 Column: Public date: 2015-06-28

Title:: Research on Soil Respiration in Different Ages of Robinia pseudoacacia in the Loess Plateau

Author(s):: MA Jingyong¹, ZHANG Yuzhen¹, ZHOU Bo², MA Tao², ZHANG Feng², CHEN Aihua², GAO Xiwang¹, WU Pengyan¹; 1. College of Forestry, Gansu Agricultural University, Lanzhou 730070, China;
2. Institute of Soil and Water Conservation of Gansu, Lanzhou 730070, China

Keywords:: soil respiration; dynamic variation; influence factor; different ages of Robinia pseudoacacia

CLC:: S714.5

DOI:: -

Abstract:: The soil respiration, temperature and moisture in the different forest ages (10, 12, 13, 16 years) of Robinia pseudoacacia were determined by using the LI-8100 open-type soil respiration apparatus. The results showed that: (1) the soil respiration rates in different forest ages of locust forest showed a significant diurnal and seasonal dynamics, and followed the seasonal sequence of summer > autumn > winter; (2) there is a good exponential relationship between the three temperatures and the soil respiration rates in different forest ages of locust forest, especially there is the best correlation with soil temperature in 5 cm layer and there are differences in Q₁₀ between the different forest ages of locust forest, Q₁₀ was associated with the increase of forest ages; (3) a highly significant linear correlations between the soil respiration rate and the soil volumetric water content in the different forest ages of locust forest were observed(p < 0.05); (4) the comprehensive effect of soil respiration rate and soil temperature in 5 cm depth and soil volumetric water content in the different forest ages of locust forest, has a highly significant linear correlation(p < 0.01) which can explain soil respiration variation of 93.8%~98.1%, and two-factor model explaining locust forest soil respiration rate variability is better than single-factor model.

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