Afforestation Effects of Groasis Waterboxx on Sand Dunes
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    Abstract:

    [Objective] Groasis Waterboxx and technology from Holland were introduced to solve the problem of sand dunes afforestation, and the technology application were analyzed. [Methods] Desert plants such as Haloxylon ammodendron, Hedysarum scoparium, Caragana korshinskii, Tamarix chinensis and other sand-fixing plants were used in Groasis Waterboxx afforestation on the mobile and semi-fixed dunes. Wind erosion was observed after the waterboxx plantation, and the ground temperature, seedling survival rate, dry weight, soil water-moisture content were measured. [Results] In the case of spring afforestation on dunes with Groasis Waterboxx, the wind erosion degree of mobile dunes was 2.0~6.0 times of the one of semi-fixed dune. Afforestation on mobile dunes was not as good as the one on semi-fixed dunes. Either for the mobile dunes or the semi-fixed dunes, the wind erosion degree on windward sides exhibited a normal rank at dune positions as: the top > the middle > bottom. (2) In terms of temperature effect, we observed that, in high temperature season, Groasis Waterboxx effectively reduced nearly 50% of soil temperature in the seedlings rhizosphere comparing with the one on bare ground. It can protect seedlings from high temperature burn; whereas in low temperature season, it maintained the rhizosphere surface ground temperature at about 5 ℃, can prevent seedling from low temperature freezing injury. (3) Using Groasis Waterboxx afforestation on sand dunes, moisture content of 0-40 cm topsoil was maintained to be a relative stable level of 6%~12%, ensuring the seedlings a constant supply of soil water. (4) In the end, afforestation using Groasis Waterboxx on dunes significantly improved the seedlings survival rate by 30%~60%, which may provide new idea and pattern to those difficult site conditions for afforestation. [Conclusion] Groasis Waterboxx afforestation is more applicable on semi-fixed dunes than on moving dunes. It can significantly increase the survival rate of seedlings.

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严子柱,满多清,姚泽,唐卫东,张芝萍,李菁菁. Groasis Waterboxx造林技术在沙丘的造林效果[J].水土保持通报英文版,2017,37(2):222-227

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History
  • Received:June 28,2016
  • Revised:September 06,2016
  • Adopted:
  • Online: May 10,2017
  • Published: