Research on Restoration Technology of Degenerated Artificial Haloxylon ammodendron Forest

MA Quan-lin; WANG Ji-he; ZHAO Ming; ZHAN Ke-jie; LIU Hu-jun

Researches on restoration technology of degenerated artificial haloxylon ammodendron forest were carried out.Results showed that when irrigating Haloxylon ammodendron woodland by drip irrigation,photosynthetic ratio of Haloxylon ammodendron and soil moisture,community vegetation and diversity all gradually increased,as well as the functions of windbreak and sand fixation.By setting up mechanical sand barriers on degenerated Haloxylon ammodendron woodland,the roughness of woodland increased;the wind speed and density of sand-driving wind of Haloxylon ammodendron woodland at 0～20 cm decreased.The aim for breaking wind and fixing move sand dune had come true by Haloxylon ammodendron forest with mechanical sand barriers.Irrigated Haloxylon ammodendron woodland in spring,the growth ratio of Haloxylon ammodendron and soil moisture,community vegetation and diversity of Haloxylon ammodendron forest all gradually increased,as well as the ecological functions for wind break and sand fixation.The soil-crust reconstruction included rainfall collection mode and water down-soak mode.Since the rainfall collection mode and water down-soak mode applied for one and two years,soil moisture near plant of Haloxylon ammodendron increased obviously.All the four measures had obvious positive effect on restoration of the degenerated Haloxylon ammodendron and its environment.Drip irrigation and mechanical sand barriers should be the main measures to be extended at present and in the future,and irrigation in spring and soil-crust reconstruction should be the complementary measures.

1. Desert Control Research Institute of Gansu Province, Wuwei 733000, Gansu, China

Received Date: 2005-04-25

Abstract: Researches on restoration technology of degenerated artificial haloxylon ammodendron forest were carried out.Results showed that when irrigating Haloxylon ammodendron woodland by drip irrigation,photosynthetic ratio of Haloxylon ammodendron and soil moisture,community vegetation and diversity all gradually increased,as well as the functions of windbreak and sand fixation.By setting up mechanical sand barriers on degenerated Haloxylon ammodendron woodland,the roughness of woodland increased;the wind speed and density of sand-driving wind of Haloxylon ammodendron woodland at 0～20 cm decreased.The aim for breaking wind and fixing move sand dune had come true by Haloxylon ammodendron forest with mechanical sand barriers.Irrigated Haloxylon ammodendron woodland in spring,the growth ratio of Haloxylon ammodendron and soil moisture,community vegetation and diversity of Haloxylon ammodendron forest all gradually increased,as well as the ecological functions for wind break and sand fixation.The soil-crust reconstruction included rainfall collection mode and water down-soak mode.Since the rainfall collection mode and water down-soak mode applied for one and two years,soil moisture near plant of Haloxylon ammodendron increased obviously.All the four measures had obvious positive effect on restoration of the degenerated Haloxylon ammodendron and its environment.Drip irrigation and mechanical sand barriers should be the main measures to be extended at present and in the future,and irrigation in spring and soil-crust reconstruction should be the complementary measures.

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Reference (23)

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Research on Restoration Technology of Degenerated Artificial Haloxylon ammodendron Forest

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