文档介绍：长城沿线农牧交错区退化草场恢复对策_以宁夏盐池沙地退化草场为例_潘占兵长城沿线农牧交错区退化草场恢复对策_以宁夏盐池沙地退化草场为例_潘占兵西北农业学报2004,13(4):115,119ActaAgriculturaeBoreali-occidentalisSinica长城沿线农牧交错区退化草场恢复对策—以宁夏盐池沙地退化草场为例潘占兵,蒋齐,温学飞,左忠,郭永忠(宁夏农林科学院荒漠化治理研究所,宁夏银川750002)摘要:描述了长城沿线农牧交错区天然草场退化现状,指出退化主要原因是干旱少雨、超载放牧、滥垦和不合理利用土地、滥采乱挖。针对天然草场退化现状,提出通过围栏封育,灭杂草,鼠虫害防治等技术对退化草场进行改良。针对草场利用中存在的问题,提出建立合理的放牧制度,实行以草定畜、加强畜牧业基础设施建设、优化畜群结构、压缩耕地、发展人工草地等措施促进退化天然草场植被恢复。为北方长城沿线农牧交错区退化草场植被恢复、生态建设提供技术支撑和政策依据。关键词:农牧交错区;天然草场;退化草场;植被恢复中图分类号::A文章编号:1004-1389(2004)04-0115-05—————————————————————————————————————————————————————StrategiesforRejuvenationofDegeneratedNaturalGrasslandinNorthern-grassingAcetoneAlongtheLineofGreatWallAgroPANZhan-bing,JIANGQi,WENXue-fei,ZUOZhongandGUOYong-zhong(DesertInstituteofAcademyofAgricultureandForestrySciencesofNinxia,YinchuanNinxia750002,China):Theactualityofdegeneratednaturegrasslandinnorthernagro-、over-grazed,wastedland-reclamationundernoplanandland-utilizationwithoutreason,,thetechnologicalmeasuresandstrategiesforrejuvenationofdegeneratednaturalgrasslandsuchasenclosingandblank-ingbreed,weedingwildgrass,-inggrasslandshouldbesolvedthroughsettingupproperherdsystem;carryingouttheyieldofgrasscorrespondingtheherds;enforcingthebasicestablishmentbuildingofstockraising;optimizingcon-structionoftheherds;reducingfield;-generatednaturalgrasslandinnorthagro-grazingacetonealongthelineofgreatwell.—————————————————————————————————————————————————————:Agro-grazingacetone;Naturalgrassland;Deterioratedgrassland;Rejuvenationofvegeta-,是重要的北方生态屏障,在调节气候、涵养水源、美化环境及生物多样性保护方面具重要作用。但随着社会经济的发展,人们对天然草场利用强度不断增收稿日期:2004-03-08修回日期:2004-08-05大。在我国北方农牧区,牲畜数量逐年增