数字农科院2.0

Effects of winter grazing and N addition on soil phosphorus fractions in an alpine grassland on the Qinghai-Tibet Plateau

文献类型： 外文期刊

作者： Zhen Huan Guan;Zuonan Cao;Xiao Gang Li;Peter Kühn;Guozheng Hu;Thomas Scholten;Jianxiao Zhu;Jin Sheng He

作者机构：

关键词： Alpine grasslands;Nitrogen addition;Soil phosphorus fractions;Winter grazing

期刊名称： Agriculture, Ecosystems and Environment

ISSN： 0167-8809

年卷期： 2023 年 357 卷

页码：

收录情况： SCIE（2023版）

摘要： Nutrient cycling in alpine grasslands is susceptible to climate change and anthropogenic activities, which can affect soil phosphorus (P) availability. Despite the crucial role of soil P availability in maintaining stability and productivity of grassland ecosystems, limited research has been conducted on the effects of nitrogen (N) addition and winter grazing on P transformation on the Qinghai-Tibet Plateau. In an 8-year experiment, we applied four different N addition rates (0, 25, 50, and 100 kg urea ha−1 year−1) in combination with winter grazing to investigate the effects of N addition and winter grazing on the soil P fractions. The results reveal that increasing the N addition gradually reduced the resin-Pi and NaOH-Pi contents in the soil by increasing the plant P uptake and promoting the release of carboxylates in the rhizosheath, regardless of grazing. Winter grazing decreased the NaHCO3-Pi and NaOH-Pi contents compared with the no-grazing treatment by increasing the P uptake of the plants. In contrast, neither grazing nor N addition affected the HClconc.-P or residual-P content. In the no-grazing plots, the soil NaHCO3-Po content exhibited a gradual increase in response to N addition, whereas N addition had no discernible effect on the NaOH-Po content. In the grazing plots, the NaHCO3- and NaOH-Po contents gradually decreased with N addition, which was associated with the increased acid phosphatase activity in the rhizosheath and the export of forage. Thus, we conclude that N addition promotes the dissolution of NaOH-Pi to more available inorganic P forms. Under winter grazing conditions only, the transformation of P from inorganic to organic forms gradually decreased with increasing N additions.

分类号：

  • 相关文献

[1]Invasive and native plants differ in their effects on the soil microbial community and plant-soil phosphorus cycle. Yu, Zhengchao,Sun, Xiaoming,Zeng, Lingda,Sun, Feng,Zhao, Mengxin. 2025

[2]Different Responses Of Ecosystem Carbon E.xchange To Warming In T hree Types Of Alpine Grassland On The Central Qinghai-Tibetan Plateau. Ganjurjav, H, Hu, GZ, Wan, YF, Li, Y, Danjiu, LB, Gao, QZ. 2018

[3]Assessment Of The Vulnerability Of Alpine Grasslands On The Qinghai-Tibetan Plateau. Li, M, Zhang, XZ, He, YT, Niu, B, Wu, JS. 2020

[4]An increase in livestock density increases forage nutritional value but decreases net primary production and annual forage nutritional yield in the alpine grassland of the Qinghai-Tibetan Plateau. Xixi Yao,Changhui Li,Anum Ali Ahmad,Akash Tariq,A. Allan Degen,Yanfu Bai. 2022

[5]Carbon use efficiency of alpine grasslands affected by grazing exclusion and local environmental context in Tibet, China. Yunfei Feng,Jianshuang Wu,Meng Li,Ben Chen,Minyahel Tilahun,Xianzhou Zhang. 2024

[6]N-Fertilizer-Driven Association Between The Arbuscular M.ycorrhizal Fungal Community And D iazotrophic Community Impacts Wheat Yield. Tian, Guangli,Luo, Gongwen,Wang, Min,Tian, Guangli,Shen, Qirong,Kong, Yali,Zhu, Chen,Ling, Ning,Guo, Shiwei,Guo, Junjie. 2018

[7]Interactions of water and nitrogen addition on soil microbial community composition and functional diversity depending on the inter-annual precipitation in a Chinese steppe. Sun Liang-jie,Qi Yu-chun,Dong Yun-she,He Ya-ting,Peng Qin,Liu Xin-chao,Jia Jun-qiang,Guo Shu-fang,Cao Cong-cong,Sun Liang-jie,Liu Xin-chao,Jia Jun-qiang,Guo Shu-fang,Cao Cong-cong,He Ya-ting. 2015

[8]Belowground net primary productivity and biomass allocation in response to different restoration measures in a salt-alkali-degraded Songnen meadow. Dongxue Tao,Taiping Chen,Yan Luo,Honghui Wu,Xinyu Wang,Jing Wang,Yingzhi Gao. 2021

[9]Mowing increased plant diversity but not soil microbial biomass under N-enriched environment in a temperate grassland. Ning, Qiushi,Jiang, Liangchao,Niu, Guoxiang,Yu, Qiang,Liu, Jushan,Wang, Ruzhen,Liao, Sha,Huang, Jianhui,Han, Xingguo,Yang, Junjie. 2022

[10]N Addition Overwhelmed the Effects of P Addition on the Soil C, N, and P Cycling Genes in Alpine Meadow of the Qinghai-Tibetan Plateau. Jiannan Xiao,Shikui Dong,Hao Shen,Shuai Li,Kelly Wessell,Shiliang Liu,Wei Li,Yangliu Zhi,Zhiyuan Mu,Hongbo Li. 2022

[11]Contrasting effects of plant inter- and intraspecific variation on community trait responses to nitrogen addition and drought in typical and meadow steppes. Aixia Guo,Xiaoan Zuo,Senxi Zhang,Ya Hu,Ping Yue,Peng Lv,Xiangyun Li,Shenglong Zhao,Qiang Yu. 2022

[12]Temporal coupling of plant and microbial nitrogen uptake and plant nitrogen reallocation improve grassland nitrogen retention under nitrogen addition. Jirui Gong,Biao Wang,Zihe Zhang,Liangyuan Song,Siqi Zhang,Weiyuan Zhang,Jiaojiao Dong,Xuede Dong,Yingying Liu,Yuchun Yan. 2024

[13]Mechanisms underlying the negative effects of nitrogen addition on soil nematode communities in global grassland ecosystems. Wen Xing,Xiaoming Lu,Shoubao Geng,Jingyi Ding,Yongfei Bai. 2023

[14]Warming intensified the effects of nitrogen addition on N2O emissions from alpine meadow in the northern Qinghai-Tibet Plateau. Li, Ming-Jie,Ge, Yi-Qing,Ganjurjav, Hasbagan,Hu, Guo-Zheng,Wu, Hong-Bao,Yan, Jun,He, Shi-Cheng,Gao, Qing-Zhu. 2024

[15]Synergistic effects of multiple global change drivers on terrestrial ecosystem carbon sink. Tang, Shiming,Tian, Dashuan,Wang, Jinsong,Zhang, Ruiyang,Wang, Song,Song, Jian,Wan, Shiqiang,Zhang, Jinxin,Zhang, Shuang,Li, Zhaolei,Niu, Shuli. 2024

[16]Effects of nitrogen and water addition on ecosystem carbon fluxes in a heavily degraded desert steppe. Chao Wen,Yumei Shan,Tingting Xing,Li Liu,Guomei Yin,Ruhan Ye,Xinchao Liu,Hong Chang,Fengyan Yi,Sibo Liu,Pujin Zhang,Jianhui Huang,Taogetao Baoyin. 2024

[17]Nitrogen addition-driven soil organic carbon stability depends on the fractions of particulate and mineral-associated organic carbon. Xu, Yulin,Zhao, Yuqing,Cha, Xinyu,Yang, Wanlin,Zheng, Mengtao,Liu, Shuang,Wang, Yuxiao,Cai, Andong,Han, Xinhui,Yang, Gaihe,Ren, Chengjie. 2024

[18]Global patterns of the interactive effects of N and P enrichment on terrestrial microbial biomass. Li S.,Zhang S.,Tang S.,Duan S.,Shao Q.,Zhan Q.,Jin K.. 2024

[19]Vertical distribution and driving mechanisms of soil microarthropods in a Stipa baicalensis meadow steppe under long-term nitrogen addition. Wu Z.,Ma S.,Lu J.,Ye H.,Yang D.,Hong M.. 2024

[20]pH threshold in controlling dominant nitrification pathway in acidic soils. Cao, Miaomiao,Li, Yong,Zhang, Yuxuan,Yu, Debang,Uwiragiye, Yves,Wang, Jing,Jing, Hang,Tang, Quan,Qian, Yinfei,Elrys, Ahmed S.,Cheng, Yi,Cai, Zucong,Xu, Minggang,Mueller, Christoph. 2024

作者其他论文 更多>>