| Study on soil respiration characters of degenerative wetland inarid region |
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| DOI：10.7606/j.issn.1000-7601.2012.03.34 |
| Key Words: degenerative wetland recovery soil respiration arid region |
| Author Name | Affiliation | | WU Zhaopeng | Department of Geography, Geography and Tourism Science Institute, Xinjiang Normal Unioersity, Urumqi, Xinjiang 830054, China
Municipal key laboratory of arid lake environment and resource, Urumqi, Xinjiang 830054, China | | MAN Zhonglong | Department of Geography, Geography and Tourism Science Institute, Xinjiang Normal Unioersity, Urumqi, Xinjiang 830054, China | | WANG Fanxia | Department of Geography, Geography and Tourism Science Institute, Xinjiang Normal Unioersity, Urumqi, Xinjiang 830054, China |
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| Abstract: |
| The wetland of Jinghe River estuary is a main part of Ebnur Lake wetland. The soil respiration characters of degenerative wetland in this region were studied based on the method of space substituting time. The results indicated that:(1)The trend of diurnal soil respiration was changing from single peak to double peaks during the recovery time. (2)The charaeter of soil respiration which was recovering in short time(only one year)was a single peak curve in autumn. Meanwhile, the character of soil respiration which was recovering in long time(3~5 years) was a double peak curve in spring and autumn. The value of soil respiration in spring was higher than it was in autumn.
(3)The soil respi-ration rate was enhancing gradually along with the vegetation recoverying. (4)The air temperature of 10 cm near surface had close correlation to soil respiration in different recovery period. So the conclusion is that the soil respiration rate will go up along with the more longer recovery time if the sufficient water could be supplied in degenerative wetlandand. It is possible that the degenerative wetlandand will come back to the initial status if we can take effeetive meagures. |
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