Journal of Food, Agriculture and Environment

The influence of ground biomass of Populus euphratica on the soil respiration rate in Tarim river basin, Xinjiang, China

Author(s):

Xiang Huang ¹*, Jian Xin Ma ^{1, 2}

Recieved Date: 2012-09-08, Accepted Date: 2013-01-19

Abstract:

Soil is the largest carbon storage in the global land surface system. Even a minor change of soil respiration intension can significantly influence the CO₂ density in the atmosphere. The problem of soil respiration is gradually drawing more attention of study and has become one hot spot for research. It has a significant meaning for elaborating the ecological process and change of soil respiration in the terrestrial ecosystem to find out the relationship between soil respiration and factors working on it. As a complex biological process affected by many factors, soil respiration on the one hand with some regularity, on the other hand, showed irregular changes, showing a considerable complexity. There are obvious differences between the different vegetation types of soil respiration rate. What was the influence of plant photosynthetic on soil respiration and how affected the soil respiration and its composition? This will provide a scientific basis for in-depth study of Populus organic carbon storage in arid desert region. Based on Populus euphratica forest growth condition, soil respiration in the lower reaches of Tarim River, controlling the photosynthesis electron transport rate of Populus euphratica forest by overshadowed, we analyzed the temporal and spatial variation of the soil respiration of Populus euphratica, and theinfluence of Populus euphratica forest growth condition and photosynthesis on soil respiration rate. We found that the Populus euphratica forest growth condition decided the value of soil respiration in great degree. The plant photosynthesis activity directly affected the daily change of soil respiration rate, meanwhile the environmental factors, especially the temperature also had great effect.

Keywords:

Forest growth condition, overshadow, photosynthesis activity, Tarim river

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Journal: Journal of Food, Agriculture and Environment
Year: 2013
Volume: 11
Issue: 1
Category: Environment
Pages: 933-936

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