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| 科尔沁沙地植被生产力对模拟增加降水和氮沉降的响应 | |
| 引用本文： | 蒋德明,周全来,阿拉木萨,唐毅,押田敏雄.科尔沁沙地植被生产力对模拟增加降水和氮沉降的响应[J].生态学杂志,2011,30(6):1070. |
| 作者姓名： | 蒋德明 周全来 阿拉木萨 唐毅 押田敏雄 |
| 作者单位： | 1. 中国科学院沈阳应用生态研究所,沈阳,110016 2. 中国科学院沈阳应用生态研究所,沈阳,110016;中国科学院研究生院,北京,100049 3. 麻布大学,日本相模原,252-5201 |
| 基金项目： | 植被环境变化国家重点实验室自主研究课题 |
| 摘 要： | 采用随机区组设计,利用降水收集装置和地表施氮处理,模拟降水和氮沉降增加对科尔沁沙地典型小叶锦鸡儿群落植被生产力的影响.结果表明:降水量增加1/7,植被平均高度增加不明显,植被生物量增加了17.6%;降水量增加2/7,植被平均高度增加了23%,植被生物量增加了31.8%;模拟氮沉降处理的一年处理结果对植被生物量增加不明显;降水是影响沙地植被生产力的关键因素,植被生产力对降水量增加响应迅速,短期的氮沉降对植被生产力的影响不显著. |
| 关 键 词： | 科尔沁沙地 小叶锦鸡儿群落 植被生物量 |
Responses of vegetation productivity in Horqin Sand Land to simulated increased precipitation and nitrogen deposition |
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| JIANG De-ming,ZHOU Quan-lai,ALAMUSA,TANG Yi,Toshio Oshida.Responses of vegetation productivity in Horqin Sand Land to simulated increased precipitation and nitrogen deposition[J].Chinese Journal of Ecology,2011,30(6):1070. | |
| Authors: | JIANG De-ming ZHOU Quan-lai ALAMUSA TANG Yi Toshio Oshida |
| Institution: | JIANG De-ming1,ZHOU Quan-lai1,ALAMUSA1,TANG Yi1,2,Toshio Oshida3(1Institute of Applied Ecology,Chinese Academy of Sciences,Shenyang 110016,China,2Graduate University of Chinese Academy of Sciences,Beijing 100049,3Azabu University,Sagamihara 252-5201,Japan) |
| Abstract: | By using precipitation collection device and with ground surface nitrogen application,a randomized block design was adopted to study the effects of simulated increased precipitation and nitrogen deposition on the vegetation productivity of typical Caragana microphylla community in Horqin Sand Land.When the precipitation increased by 1/7,the mean vegetation height had no significant increase,but the vegetation biomass increased by 17.6%.When the precipitation increased by 2/7,the mean vegetation height incre... |
| Keywords: | Horqin Sand Land Caragana microphylla community vegetation biomass |
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