| 半干旱荒漠草原带沙化草地封禁治理效果研究 |
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| 引用本文： | 常海军,陈昕.半干旱荒漠草原带沙化草地封禁治理效果研究[J].中国沙漠,2007,27(2):206-209. |
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| 作者姓名： | 常海军 陈昕 |
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| 作者单位： | 1. 宁夏盐池机械化林场,宁夏,盐池,751500
2. 宁夏盐池县农牧科学研究所,宁夏,盐池,751500 |
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| 摘 要： | 如何依靠大自然的力量充分发挥生态系统的自我修复能力加速水土流失的治理,是进入21世纪我国社会经济的发展对水土保持生态建设提出的新要求。围封禁牧是半干旱荒漠草原带生态修复的有效措施。宁夏盐池县花马池镇四墩子的治理模式为半干旱荒漠草原封禁治理提供了重要的经验。封禁当年的植被盖度达50%以上,禾本科牧草多度增加,地上生物量上升;而劣质毒害草多度减少,地上生物量下降。采用柠条林带作为生物围栏是沙化草地封禁治理的重要措施,既增加了草地的植被盖度,加强了防风固沙效益,又增加了草地的产草量。暖棚养殖能有效提高养羊效益,也是确保封禁治理成功的重要措施。
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| 关 键 词： | 沙化草地 封育 植被恢复 圈养 效益 |
| 文章编号： | 1000-694X（2007）02-0206-04 |
| 收稿时间： | 2006-01-15 |
| 修稿时间： | 2006-02-20 |
Effect of Enclosing Desertified Grassland from Grazing in Semi-arid Desert Steppe |
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| CHANG Hai-jun,CHEN Xin.Effect of Enclosing Desertified Grassland from Grazing in Semi-arid Desert Steppe[J].Journal of Desert Research,2007,27(2):206-209. |
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| Authors: | CHANG Hai-jun CHEN Xin |
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| Institution: | 1.Mechanization Forestry Center of Yanchi County in Ningxia, Yanchi 751500, Ningxia, China; 2.Research Institute of Agricultural and Animal Husbandry Sciences of Yanchi County, Yanchi 751500, Ningxia, China |
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| Abstract: | Grassland degradation and desertification is serious in Yanchi County,Ningxia of China.Grassland enclosure from grazing is an effective method for naturally rehabilitating of ecology in semi-arid desert steppe.An enclosure project has been set up in SiDongzi of Yanchi County in year 1990.The results showed that the natural vegetation coverage exceeded 50% after one year enclosure,the species of graminaceous grasses increased and that of unpalatable grasses decreased.The biological fence of Caragana korshinskii for grassland enclosure in SiDongzi of Yanchi County has showed good effect: not only has increased the vegetation coverage and strengthened the wind-preventing and sand-fixing effect,but also has increased the grass production of grassland.In grassland enclosure,the method of pet-rearing is the key measure that insures the success of enclosure.Besides,this method can also increase the benefit of rearing sheep in pet.The experience of enclosure project in SiDongzi of Yanchi County can be used for reference in controlling grassland desertification in semi-arid desert steppe. |
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| Keywords: | desertified grasslands enclosure natural vegetation rehabilitation rear livestock in pens effect |
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