您好，欢迎访问黑龙江省农业科学院 机构知识库！
黑龙江省农业科学院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

Increased precipitation modulates the influence of nitrogen and litter inputs on the nutrient resorption proficiency rather than efficiency of Leymus chinensis

文献类型： 外文期刊

作者： Shen, Yue 1 ; Yang, Xin 1 ; Sun, Xiao 3 ; Chen, Wenqing 2 ; Yang, Gaowen 3 ; Liu, Nan 1 ; Chen, Jishan 4 ; Zhang, Yingjun 1 ;

作者机构： 1.China Agr Univ, Dept Grassland Sci, 2 Yuan Ming Yuan Xilu, Beijing 100193, Peoples R China

2.Northwest A&F Univ, Dept Grassland Sci, Yangling, Shanxi, Peoples R China

3.Nanjing Agr Univ, Coll Prataculture Sci, Nanjing 210095, Jiangsu, Peoples R China

4.Heilongjiang Acad Agr Sci, Inst Pratacultural Sci, Harbin 150086, Heilongjiang, Peoples R China

关键词： Precipitation;Nitrogen;Litter;Nutrient resorption;Stem

期刊名称：PLANT ECOLOGY （ 影响因子：1.854； 五年影响因子：2.194 ）

ISSN： 1385-0237

年卷期： 2018 年 219 卷 2 期

页码：

收录情况： SCI

摘要： Resorption of nutrients from senescing organs is an important conservation mechanism that is usually influenced by the supply of soil nutrients and plant growth requirements. Therefore, it is likely that increases in nitrogen (N), precipitation, and litter could lead to changes in nutrient resorption because of changes in nutrients in the soil and accelerated plant growth in response to the alleviation of water limitations in arid and semiarid environments. In the current study, we investigated the effects of water, N, and litter addition on the nutrient resorption efficiency and proficiency of N and phosphorus (P) in leaves and stems of Leymus chinensis in Inner Mongolia, China. Our results showed that N addition significantly decreased the N resorption efficiency in leaves under water addition, and increased P resorption efficiency under ambient precipitation conditions. There was no apparent influence of either litter or water addition on N and P resorption efficiencies. However, N and litter addition significantly altered N and P resorption proficiencies, and these effects were modulated by water availability. Furthermore, changes in resorption proficiencies were mainly associated with alterations in the nutritional status of green organs in response to water, N and litter addition, except for leaf P. Our findings highlight the importance of increased precipitation in modulating the nutrient resorption proficiency of plants under potentially increased nutrient availability in semiarid grasslands. Therefore, global changes in precipitation and N, and corresponding litter changes could result in complex effects on plant nutrient economies and, in turn, could influence the return of nutrients to the soil.

  • 相关文献

[1]Can litter addition mediate plant productivity responses to increased precipitation and nitrogen deposition in a typical steppe?. Shen, Yue,Yang, Xin,Liu, Nan,Chen, Jishan,Zhang, Yingjun,Chen, Wenqing,Yang, Gaowen,Sun, Xiao,Chen, Jishan.

[2]Fate of applied urea N-15 in a soil-maize system as affected by urease inhibitor and nitrification inhibitor. Zhang, L.,Wu, Z.,Jiang, Y.,Chen, L.,Song, Y.,Zhang, L.,Wang, L.,Xie, J.,Ma, X.. 2010

作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：黑龙江省农业科学院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台