高寒草地生物量与环境因子的相关性研究
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摘要
本试验以那曲县、比如县和林芝市高寒草地为研究对象,分析比较了高寒草地地上、地下生物量与环境因子(年积温和年降水量)的相关性。结果表明:高寒草地(1)随着年积温的升高,地上生物量增高,地下生物量降低。(2)随着年降水量的升高,地上生物量增高,地下生物量降低。(3)不同地区高寒草地地下生物量均呈"T"形分布。(4)地下总生物量和地上生物量呈负相关性。
This experiment is based on alpine grassland in Nagqu County, Biru County and Nyingchi City. Analysis and comparison of the correlation between aboveground and underground biomass and environmental factors(annual accumulated temperature and annual precipitation) in alpine grassland were conducted. The results showed that with the increase of annual accumulated temperature, aboveground biomass increased and underground biomass decreased. With the increase of annual precipitation, aboveground biomass increased, and underground biomass decreased. Generally, the underground biomass of alpine meadow in different regions was distributed in the form of "T" and there was a negative correlation between total biomass and aboveground biomass.
This experiment is based on alpine grassland in Nagqu County, Biru County and Nyingchi City. Analysis and comparison of the correlation between aboveground and underground biomass and environmental factors(annual accumulated temperature and annual precipitation) in alpine grassland were conducted. The results showed that with the increase of annual accumulated temperature, aboveground biomass increased and underground biomass decreased. With the increase of annual precipitation, aboveground biomass increased, and underground biomass decreased. Generally, the underground biomass of alpine meadow in different regions was distributed in the form of "T" and there was a negative correlation between total biomass and aboveground biomass.
引文
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[14]杨秀静,黄玫,王军邦,刘洪升.青藏高原草地地下生物量与环境因子的关系[J].生态学报,2013(7):2032-2042.
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[16]金云翔,徐斌,杨秀春等.不同沙化程度草原地下生物量及其环境因素特征[J].草业学报,2013(5):44-51.
[17]牛犇,张立峰,马荣荣等.高寒草甸土壤微生物量及酶活性的研究[J].南开大学学报(自然科学版),2016,49(04):53-60.
[18]于健龙,石红霄.高寒草甸不同退化程度土壤微生物数量变化及影响因子[J].西北农业学报,2011(11):78-81.
[2]李英年.高寒草地植物生物量与气象条件的关系及周转值分析[J].中国农业气象,1998(1):36-38.
[3]陈生云,赵林,秦大河等.高寒草地生物量与环境因子关系的初步分析[J].2010(2):405-413.
[4]工长庭,曹广民,工启兰等.高寒草地植物群落物种组成和生物量沿环境梯度的变化[J].中国科学,2007(5):585-592.
[5]马文红,方精云,杨元合,安尼瓦尔·买买提.中国北方草地生物量动态及其与气候因子的关系[J].2010(7):632-641.
[6]鄂燕,张建国,张锦华,范建容,李辉霞.西藏那曲地区高寒草地地下生物量.生态学报[J].2005(11):2818-2823.
[7]马文红,杨元合,贺金生,曾辉,方精云.内蒙古温带草地生物量及其与环境因子的关系[J].2008(1):84-92.
[8]林芝地区地方志编撰委员会,林芝地区志年鉴社[M],拉萨:中国藏学出版社,2006(9):45-67.
[9]西藏自治区统计局编.西藏统计年鉴[M].北京:2008(1):29-78.
[10]陈百明.土地资源概率[M].北京:中国环境科学出版社,1996(6):324-356.
[11]王秋兵,吴克宁,刘又兆等.土地资源学[J].2010(5):235-256.
[12]马添龙,毛问学,成桂顺等,西藏林芝地区农业气候资源分析及区划[J].1993(6):103-105.
[13]程天庆等.西藏的农业概况[M].北京:科学出版社,1964(4):402-235.
[14]杨秀静,黄玫,王军邦,刘洪升.青藏高原草地地下生物量与环境因子的关系[J].生态学报,2013(7):2032-2042.
[15]金云翔,徐斌,杨秀春等.不同沙化程度草原地下生物量及其环境因素特征[J].草业学报,2013(5):44-51.
[16]金云翔,徐斌,杨秀春等.不同沙化程度草原地下生物量及其环境因素特征[J].草业学报,2013(5):44-51.
[17]牛犇,张立峰,马荣荣等.高寒草甸土壤微生物量及酶活性的研究[J].南开大学学报(自然科学版),2016,49(04):53-60.
[18]于健龙,石红霄.高寒草甸不同退化程度土壤微生物数量变化及影响因子[J].西北农业学报,2011(11):78-81.