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

Land use intensification alters the relative contributions of plant functional diversity and soil properties on grassland productivity

文献类型： 外文期刊

作者： Zhang, Minna 1 ; Li, Guangyin 1 ; Wang, Yue 1 ; Pan, Duofeng 2 ; Sun, Jinyan 3 ; Wang, Ling 1 ;

作者机构： 1.Northeast Normal Univ, Inst Grassland Sci, Jilin Songnen Grassland Ecosyst Natl Observat & R, Key Lab Vegetat Ecol,Minist Educ, Changchun 130024, Peoples R China

2.Heilongjiang Acad Agr Sci, Inst Forage & Grassland Sci, Harbin, Peoples R China

3.Heilongjiang Acad Agr Sci, Inst Anim Husb, Harbin 150086, Peoples R China

关键词： Plant diversity; Productivity; Land use intensification; Functional traits; Soil properties

期刊名称：OECOLOGIA （ 影响因子：3.298； 五年影响因子：3.644 ）

ISSN： 0029-8549

年卷期： 2023 年 201 卷 1 期

页码：

收录情况： SCI

摘要： Understanding the mechanisms of grassland productivity variation is critical for global carbon cycling and climate change mitigation. Heretofore, it is unknown how different environmental factors drive small-scale spatial variation in productivity, and whether land use intensification, one of the most important global changes, can regulate the processes that drive productivity change. Here we performed an 18-year exclosure experiment across six sites with high-intensity mowing/grazing history in northern China to examine the effects of land use intensification on plant functional diversity, soil properties, and their relative contributions to above-ground net primary productivity (ANPP). We found that plant functional diversity and soil properties contributed to the variation in ANPP both independently and equally in enclosed grasslands (plant diversity: 20.6%; soil properties: 19.5%). Intensive land use significantly decreased the Rao's quadratic entropy (RaoQ) and community-weighted mean value (CWM) of plant height, and further suppressed the contributions of plant functional diversity to ANPP. In contrast, intensive land use increased soil available N, P, pH, electrical conductivity, and homogeneity of soil available P, and strengthened their contributions to ANPP (31.5%). Our results indicate that high-intensity land use practices in grasslands decrease the role of plant functional diversity, but strengthen the effects of soil properties on productivity. We, therefore, suggest that plant functional diversity can be used effectively to boost productivity in undisturbed grasslands, while soil properties might be a more critical consideration for grassland management in an areas with increased land use.

  • 相关文献
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