| 封禁条件下沙地飞播植被与生境的变化研究 |
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| 引用本文： | 杨锦萍,王琦,符亚儒.封禁条件下沙地飞播植被与生境的变化研究[J].防护林科技,2008(3):6-8. |
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| 作者姓名： | 杨锦萍 王琦 符亚儒 |
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| 作者单位： | 陕西省治沙研究所,陕西,榆林,719000 |
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| 摘 要： | 通过对飞播林地封育后5a来的植被状况、土壤水分、土壤有机质及养分（N、P、K）含量等的调查研究，得出流动沙地经飞播造林种草封育5a后，使沙地得到了固定和半固定，地表风蚀减弱，沙物质得到固定，结皮层形成，土壤有机质和肥力提高，小气候得到了改善，但土壤水分含量有所下降，各个种在群落中的地位也发生了变化。
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| 关 键 词： | 飞播植被 封育 变化 |
Changes of Aerial Seeding Vegetation and Habitat in Sandy Land under Enclosure |
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| YANG Jin-ping,WANG Qi,FU Ya-ru.Changes of Aerial Seeding Vegetation and Habitat in Sandy Land under Enclosure[J].Protection Forest Science and Technology,2008(3):6-8. |
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| Authors: | YANG Jin-ping WANG Qi FU Ya-ru |
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| Institution: | ( Sand-control Research ln sti. , Shaanxi Prov. , Yulin, 719000, Shaanxi, China) |
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| Abstract: | Vegetation status,soil moisture,and soil organic matter and nutrient content(N,P,and K) of aerial seeding afforestation were investigated after 5 years' enclosure.Result reveals that after aerial seeding and 5 years' enclosure,drift sand is fixed or semi-fixed.Erode of the earth's surface by wind reduces,microbiotic crust layer is formed,soil organic matter and fertility are enhanced,microclimate is improved;however,the soil water content declines.Various species also changs their status in the community. |
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| Keywords: | aerial seeding vegetation enclosure change |
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