鼠害防治对退化草地植物群落及产量的影响研究
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摘要
2010—2016年连续7年对达日县鼠害防治区和对照区进行监测,分析比较植被高度、盖度及产量,结果表明:工程区的植被高度、盖度和产量呈先减小后增大的变化趋势,均高于对照区,且差异显著(P<0.05);对照区植被高度、盖度和产量都呈现逐年下降的趋势,且下降明显,差异显著(P<0.05);无论是工程区还是对照区,草丛高度对地上生物量的贡献大于植被盖度。
The vegetation height, coverage and yield were analyzed and compared in the testing area and the control area in Dari County in 2010-2016.The results showed that the vegetation height, coverage and yield of the engineering area decreased first and then increased, which were higher than those in the control area, and the difference was significant(P<0.05). The height, coverage and yield of vegetation in the control area were declining year by year, and the difference was obvious(P<0.05). The contribution of grass height to the aboveground biomass was greater than that of the vegetation coverage.
The vegetation height, coverage and yield were analyzed and compared in the testing area and the control area in Dari County in 2010-2016.The results showed that the vegetation height, coverage and yield of the engineering area decreased first and then increased, which were higher than those in the control area, and the difference was significant(P<0.05). The height, coverage and yield of vegetation in the control area were declining year by year, and the difference was obvious(P<0.05). The contribution of grass height to the aboveground biomass was greater than that of the vegetation coverage.
引文
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[7] 周立志,李迪强,王秀磊,等. 三江源自然保护区鼠害类型、现状和防治策略[J].安徽大学学报(自然科学版), 2002,26(2):87-96.
[8] 施大钊,宛新荣,吴新平,等.毒鼠强整治后农业鼠害防治出现的问题及其对策[J].植物保护,2006,32(5): 13-15.
[9] 杨晓慧.青海省草地鼠害防治及高原鼢鼠食性研究[D].兰州:兰州大学,2017.
[10] 杨晓慧,唐俊伟,张明,等.果洛州草地鼠害危害及防治调查[J].青海草业,2015,24(4):28-32.
[11] 雷岩.论玉树州草原鼠害防治建设与管理[J].农民致富之友,2016(14):227.
[2] 包文忠,山薇,杨晓东,等.我国北方草地资源面临的生态危机及对策[J].中国草地,1998(2):68-71.
[3] 王宗礼.中国草原生态保护战略思考[J].中国草地,2005,27(4):1-9.
[4] 张知彬.我国草原鼠害的严重性及防治对策[J].中国科学院院刊,2003,18(5):343-347.
[5] 才旺.对达日县退牧还草中几个难点问题的分析[J].青海统计,2004(8):20-22.
[6] 郭永旺,王登,施大钊.我国农业鼠害发生状况及防控技术进展[J].植物保护,2013,39(5):62-69.
[7] 周立志,李迪强,王秀磊,等. 三江源自然保护区鼠害类型、现状和防治策略[J].安徽大学学报(自然科学版), 2002,26(2):87-96.
[8] 施大钊,宛新荣,吴新平,等.毒鼠强整治后农业鼠害防治出现的问题及其对策[J].植物保护,2006,32(5): 13-15.
[9] 杨晓慧.青海省草地鼠害防治及高原鼢鼠食性研究[D].兰州:兰州大学,2017.
[10] 杨晓慧,唐俊伟,张明,等.果洛州草地鼠害危害及防治调查[J].青海草业,2015,24(4):28-32.
[11] 雷岩.论玉树州草原鼠害防治建设与管理[J].农民致富之友,2016(14):227.