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《Protection Forest Science and Technology》 2016-01
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Restoration Technology of Degraded Ecosystems on Mountain Grassland

Yang Fei;Wang Feng;Sun Hailong;Chen Bing;Silvicultural Bureau of Daxing'anling Region;Agriculture and Forestry Sciences Academy,Daxing'anling Region;Forestry College,Northeast Forestry University;  
In the experimental base of Daxing'anling A F Sciences,degraded shrubs and grass,grass were selected to conduct study of restoration technology.Result shows that:in the degraded shrub and grass ecosystems in Daxing'anling Region,the survival rate of Armeniaca sibirica Picea koraiensis in nutrition cup are the optimal by restoration method of artificial planting.and Pinus sylvestris var.mongolicain nutrition cup is the second.Larix gmelinii is the worst;water retaining agent has significant promotion effects on the ground diameter,seedling height of Pinus sylvestris var.mongolicaand Larix gmelinii,and has relative small effect on ground diameter and height growth on Larix gmelinii and Armeniaca sibirica;ground growth of Armeniaca sibirica have significant increase and height growth decrease significantly after adopting water retaining agent;the ground diameter and height growth of Pinus sylvestris var.mongolicaincreased 143.1%and 8.7%respectively,after treated with anti-transpiration agent.Ground diameter,seedling height of Larix gmelinii increase by 39.1% 177.7% respectively compared with controls.Different land preparation methods significantly affect the survival rate of afforestation and seedling growth of Pinus sylvestris var.mongolica,horizontal ditch is the optimal,followed by fish scale pit site preparation,the worst is a cave-like site preparation;the survival rate of Lespedeza bicolor and Armeniaca sibirica are significantly higher than that of Hippophae rhamnoides among different species for planting in the grass.
【Fund】: 重度退化生态系统恢复与重建关键技术研究与示范(2011BAD08B02-02)
【CateGory Index】: S812
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