Characteristic on the Stability of Haloxylon ammodendron Plantation in the Southern Fringe of Gurbantunggut Desert, Northwest China

Qinghong Luo, Qimin Chen, Miao He and Na Li

A chapter in Deserts and Desertification from IntechOpen

Abstract: Using chronosequence theory and method, the characteristics of vegetation-soil coupling and structure stability of Haloxylon ammodendron plantations in the southern fringe of Gurbantunggut Desert were analyzed. The results showed, the canopy storey of H. ammodendron plantation experienced three stages, rapid growth (the age of 7 to 20), then slow growth (the age of 20 to 28) and last decline (over the age of 28). The best natural regeneration started from 17-yr-old plantation. Vegetation-soil system coupling degree (C) and coupling coordinative degree (D) of plantations with different age were not one-to-one correspondence. The system of H. ammodendron plantations always stayed in disorder recession, vegetation and soil were prone to loss type during the process of sand-fixation. Five principal components evaluated that the first rank was 42-yr-old plantation. It was inferred that the trend of the vegetation and soil system was from senescence to harmonious development. So the trend of coordinated development between vegetation and soil would be promoted, if the artificial tending and management measures strengthened.

Keywords: Haloxylon ammodendron plantation; structure dynamic; survive and death curve; vegetation-soil coupling degree; coupling coordinative degree (search for similar items in EconPapers)
JEL-codes: Q50 (search for similar items in EconPapers)
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Persistent link: https://EconPapers.repec.org/RePEc:ito:pchaps:232539

DOI: 10.5772/intechopen.99050

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