版权说明 操作指南
首页 > 成果 > 成果详情

CO_2倍增条件下不同生育期水稻碳氮磷含量及其计量比特征

认领
导出
下载 Link by 中国知网学术期刊 Link by 维普学术期刊 Link by 万方学术期刊
反馈
分享
QQ微信 微博
成果类型:
期刊论文
论文标题(英文):
Effect of CO_2 Doubling and Different Plant Growth Stages on Rice Carbon, Nitrogen,and Phosphorus and Their Stoichiometric Ratios
作者:
唐美玲;肖谋良;袁红朝;王光军;刘守龙;...
通讯作者:
Wang, Guang-Jun(wanggj652@163.com)
作者机构:
[唐美玲; 王光军] College of Life Science and Engineering, Central South University of Forestry and Technology, Changsha
410004, China
[肖谋良; Yuan, Hong-Zhao; 刘守龙; 祝贞科; 葛体达; 吴金水] Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha
410125, China
[唐美玲] 410004, China<&wdkj&>Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha
语种:
中文
关键词:
生态化学计量学;CO2倍增;生育期;动态平衡理论;生长速率理论
关键词(英文):
Carbon;Carbon dioxide;Ecology;Efficiency;Nitrogen fertilizers;Nutrients;Phosphorus;Chemometry;CO2 doubling;Dynamic equilibria;Growth stages;Stoichiometric changes;Stoichiometric ratio;Variation characteristics;Venn diagram analysis;Growth rate;carbon;carbon dioxide;nitrogen;phosphorus;chemistry;growth, development and aging;Oryza;Carbon;Carbon Dioxide;Nitrogen;Oryza;Phosphorus
期刊:
环境科学
ISSN:
0250-3301
年:
2018
卷:
39
期:
12
页码:
5708-5716
基金类别:
41771334:国家自然科学基金 41771337:国家自然科学基金
机构署名:
本校为第一机构
院系归属:
生命科学与技术学院
摘要:
生态化学计量比的变化特征在一定程度上可反映植物对环境条件变化适应的本质.本研究利用CO_2连续标记系统模拟大气CO_2体积分数升高(800×10~(-6))条件,探讨水稻各器官C、N、P含量及其计量比变化的特征.结果表明,CO_2倍增促进水稻各器官生长,并增加了根冠比.在植株生长过程中CO_2倍增可一定程度上降低不同生育期内秸秆全氮(TN)含量,同时使得水稻根系、秸秆和籽粒的C/N比值增大,降低N和提高P的利用效率.多重比较和韦恩图分析表明CO_2体积分数仅对水稻秸秆TN有着显著影响,对水稻养分含量及其计量比特征的变异解释率均为-1.0%,即几乎不受CO_2倍增影响.在大气CO_2体积分数升高条件下,水稻各器官C、N...
摘要(英文):
The variation characteristics of ecological stoichiometric ratios can reflect the nature of plant adaptation to environmental changes. The C, N, and P contetns, and their stoichiometric ratios in different organs of rice were studied using a CO 2 continuous labeling system, by simulating the increase of atmospheric CO 2 concentration (800×10 -6 ). The results showed that CO 2 doubling promoted the growth of rice organs and increased the root/shoot ratio. CO 2 doubling reduced the shoot TN content in different growth periods, increased the C/N ...

反馈

验证码:
看不清楚,换一个
确定
取消

成果认领

标题:
用户 作者 通讯作者
请选择
请选择
确定
取消

提示

该栏目需要登录且有访问权限才可以访问

如果您有访问权限,请直接 登录访问

如果您没有访问权限,请联系管理员申请开通

管理员联系邮箱:yun@hnwdkj.com