中国科学院青藏高原研究所机构知识库
Advanced  
ITPCAS OpenIR  > 图书馆  > 期刊论文
学科主题: 生物科学::普通生物学
题名: Changes in Biomass and Quality of Alpine Steppe in Response to N & P Fertilization in the Tibetan Plateau
作者: Dong, JF (Dong, Junfu)1, 2; Cui, XY (Cui, Xiaoyong)2; Wang, SP (Wang, Shuping)1, 3; Wang, F (Wang, Fang)1; Pang, Z (Pang, Zhe)2; Xu, N (Xu, Ning)1; Zhao, GQ (Zhao, Guoqiang)1
通讯作者: Wang, SP
刊名: PLOS ONE
发表日期: 2016
DOI: 10.1371/journal.pone.0156146
卷: 11, 期:5, 页:e0156146
收录类别: SCI
合作性质: 国内
文章类型: Article
英文摘要: In the alpine steppe zone on the Central Tibetan Plateau, a large amount of area has been degraded due to natural and artificial factors. N & P fertilization is widely accepted to recover degraded pastures in other regions all over the world. However, it is not clear how alpine steppe communities respond to N & P fertilization, and what is the optimal application rate, in the perspective of forage production. To attempt to explore these questions, in July 2013, two fencing sites were designed in Baingoin County with 12 treatments of different levels of nitrogen (N-0: 0; N-1: 7.5 g m(-2) yr(-1); N-2: 15 g m(-2) yr(-1)) & phosphate (P-0: 0; P-1: 7.5 gP(2)O(5) m(-2) yr(-1); P-2: 15 gP(2)O(5) m(-2) yr(-1); P-3: 30 gP(2)O(5) m(-2) yr(-1)). The results indicated N&P addition was capable to ameliorate the quality of the two sites in the Tibetan Plateau steppe. Increasing N application level resulted in significant increment in Gramineae and total biomass in the two sites. P addition significantly improved the quantity of Compositae, total biomass and the biomasss of other species in site II, while it only significantly improved the total biomass in site I. Gramineae was much more sensitive to N-induced changes than P-induced changes, and this indicated N addition was better to ameliorate the quality of plateau steppe than P-induced changes. No strong evidence was found for critical threshold within 15 g N m(-2) yr(-1), and there was decreasing tendency when P addition rate was above 15 g m(-2) yr(-1). N&P has the potential to accelerate soil acidification, which improved the content of available K, likely as a result of nonsignificant correlation between biomass and soil moisture. This work highlights the the tradeoffs that exist in N and P addition in recovering degraded steppe.
语种: 英语
WOS记录号: WOS:000376881700065
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.itpcas.ac.cn/handle/131C11/7696
Appears in Collections:图书馆_期刊论文

Files in This Item:
File Name/ File Size Content Type Version Access License
V.11(5) e0156146 2016.pdf(898KB)期刊论文作者接受稿开放获取View 联系获取全文

作者单位: 1.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China
2.Univ Chinese Acad Sci, Coll Life Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Inst Tibetan Plateau Res, Beijing 100101, Peoples R China

Recommended Citation:
Dong, JF ,Cui, XY ,Wang, SP ,et al. Changes in Biomass and Quality of Alpine Steppe in Response to N & P Fertilization in the Tibetan Plateau[J]. PLOS ONE,2016,11(5):e0156146.
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Dong, JF (Dong, Junfu)]'s Articles
[Cui, XY (Cui, Xiaoyong)]'s Articles
[Wang, SP (Wang, Shuping)]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Dong, JF (Dong, Junfu)]‘s Articles
[Cui, XY (Cui, Xiaoyong)]‘s Articles
[Wang, SP (Wang, Shuping)]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit
文件名: V.11(5) e0156146 2016.pdf
格式: Adobe PDF
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Copyright © 2007-2017  中国科学院青藏高原研究所 - Feedback
Powered by CSpace