The uptake diversity of soil nitrogen nutrients by main plant species in Kobresia humilis alpine meadow on the Qinghai-Tibet Plateau
We studied the uptake of ammonium, nitrate, and a variety of amino acids by alpine plant species in the Kobresia humilis alpine meadow ecosystem in situ. We examined the extent of niche separation in uptake of N source by different plant species in alpine communities, and investigated the contributi...
Main Authors: | , , , , , |
---|---|
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2012
|
Subjects: | |
Online Access: | http://210.75.249.4/handle/363003/3604 |
id |
ftchinacascnwipb:oai:210.75.249.4:363003/3604 |
---|---|
record_format |
openpolar |
spelling |
ftchinacascnwipb:oai:210.75.249.4:363003/3604 2024-09-30T14:45:28+00:00 The uptake diversity of soil nitrogen nutrients by main plant species in Kobresia humilis alpine meadow on the Qinghai-Tibet Plateau Wang WenYing Ma YongGui Xu Jin Wang HuiChun Zhu JinFu Zhou HuaKun 2012-10-01 http://210.75.249.4/handle/363003/3604 英语 eng SCIENCE CHINA-EARTH SCIENCES Ning, SJ; You, JM; Sun, ZW; Zhang, SJ; Ji, ZY.The uptake diversity of soil nitrogen nutrients by main plant species in Kobresia humilis alpine meadow on the Qinghai-Tibet Plateau,SCIENCE CHINA-EARTH SCIENCES,2012,55(10):1688-1695 http://210.75.249.4/handle/363003/3604 Kobresia Humilis Alpine Meadow N-15 Tracer Technique Plant Organic Nutrition Soil Nitrogen Science & Technology Physical Sciences DISSOLVED ORGANIC NITROGEN BOREAL FOREST PLANTS AMINO-ACID-UPTAKE TUNDRA MINERALIZATION ECOSYSTEMS MICROBES CARBON SEDGE Geology Geosciences Multidisciplinary Article 期刊论文 2012 ftchinacascnwipb 2024-09-12T04:32:42Z We studied the uptake of ammonium, nitrate, and a variety of amino acids by alpine plant species in the Kobresia humilis alpine meadow ecosystem in situ. We examined the extent of niche separation in uptake of N source by different plant species in alpine communities, and investigated the contribution of symbiotically fixed N to the total N in alpine meadow. The results are (1) delta N-15 natural abundance values of 13 plant species lie between -2.680aEuro degrees and 5.169aEuro degrees, and the scope is 7.849aEuro degrees. (2) Leguminous plants, such as Trigonella ruthenica, Gueldenstaedtia diversiffolia, and Oxytyopis ochrocephala, and non-leguminous plant Gentiana straminea uptake low amounts of N-15 labeled ammonium, nitrate, glycine or aspartate in soil. (3) As far as the plant uptake of organic N is concerned, Kobresia humilis, Poa pratensis, and Gentiuna spathutifolta can effectively uptake organic nitrogen, and about 37%-40% of the nitrogen of these species comes from soil organic nitrogen sources (such as glycine and aspartate). Stipa aliena can effectively uptake nitrate, and 60% of its nitrogen comes from soil nitrate. Potentilla anserina, Poa pratensis, and Thalictrum alpinum can effectively absorb ammonium in comparason to other plant species in the meadow, and about 25%-27% of the nitrogen in these plants comes from soil ammonium. (4) The contribution of leguminous fixed N to total N is 7.48%-9.26% in Kobresia humilis alpine meadow. (5) These data show many plant species of alpine meadow may effectively utilize dissolved organic nitrogen such as amino acids, and these plants have diverse ways to uptake soil nitrogen in alpine meadows. Based on the results we can partly explain why there are abundant biodiversities and how plants at alpine habitat utilize the limited soil N sources. We studied the uptake of ammonium, nitrate, and a variety of amino acids by alpine plant species in the Kobresia humilis alpine meadow ecosystem in situ. We examined the extent of niche separation in uptake of N source ... Article in Journal/Newspaper Tundra Northwest Institute of Plateau Biology: NWIPB OpenIR (Chinese Academy of Sciences) |
institution |
Open Polar |
collection |
Northwest Institute of Plateau Biology: NWIPB OpenIR (Chinese Academy of Sciences) |
op_collection_id |
ftchinacascnwipb |
language |
English |
topic |
Kobresia Humilis Alpine Meadow N-15 Tracer Technique Plant Organic Nutrition Soil Nitrogen Science & Technology Physical Sciences DISSOLVED ORGANIC NITROGEN BOREAL FOREST PLANTS AMINO-ACID-UPTAKE TUNDRA MINERALIZATION ECOSYSTEMS MICROBES CARBON SEDGE Geology Geosciences Multidisciplinary |
spellingShingle |
Kobresia Humilis Alpine Meadow N-15 Tracer Technique Plant Organic Nutrition Soil Nitrogen Science & Technology Physical Sciences DISSOLVED ORGANIC NITROGEN BOREAL FOREST PLANTS AMINO-ACID-UPTAKE TUNDRA MINERALIZATION ECOSYSTEMS MICROBES CARBON SEDGE Geology Geosciences Multidisciplinary Wang WenYing Ma YongGui Xu Jin Wang HuiChun Zhu JinFu Zhou HuaKun The uptake diversity of soil nitrogen nutrients by main plant species in Kobresia humilis alpine meadow on the Qinghai-Tibet Plateau |
topic_facet |
Kobresia Humilis Alpine Meadow N-15 Tracer Technique Plant Organic Nutrition Soil Nitrogen Science & Technology Physical Sciences DISSOLVED ORGANIC NITROGEN BOREAL FOREST PLANTS AMINO-ACID-UPTAKE TUNDRA MINERALIZATION ECOSYSTEMS MICROBES CARBON SEDGE Geology Geosciences Multidisciplinary |
description |
We studied the uptake of ammonium, nitrate, and a variety of amino acids by alpine plant species in the Kobresia humilis alpine meadow ecosystem in situ. We examined the extent of niche separation in uptake of N source by different plant species in alpine communities, and investigated the contribution of symbiotically fixed N to the total N in alpine meadow. The results are (1) delta N-15 natural abundance values of 13 plant species lie between -2.680aEuro degrees and 5.169aEuro degrees, and the scope is 7.849aEuro degrees. (2) Leguminous plants, such as Trigonella ruthenica, Gueldenstaedtia diversiffolia, and Oxytyopis ochrocephala, and non-leguminous plant Gentiana straminea uptake low amounts of N-15 labeled ammonium, nitrate, glycine or aspartate in soil. (3) As far as the plant uptake of organic N is concerned, Kobresia humilis, Poa pratensis, and Gentiuna spathutifolta can effectively uptake organic nitrogen, and about 37%-40% of the nitrogen of these species comes from soil organic nitrogen sources (such as glycine and aspartate). Stipa aliena can effectively uptake nitrate, and 60% of its nitrogen comes from soil nitrate. Potentilla anserina, Poa pratensis, and Thalictrum alpinum can effectively absorb ammonium in comparason to other plant species in the meadow, and about 25%-27% of the nitrogen in these plants comes from soil ammonium. (4) The contribution of leguminous fixed N to total N is 7.48%-9.26% in Kobresia humilis alpine meadow. (5) These data show many plant species of alpine meadow may effectively utilize dissolved organic nitrogen such as amino acids, and these plants have diverse ways to uptake soil nitrogen in alpine meadows. Based on the results we can partly explain why there are abundant biodiversities and how plants at alpine habitat utilize the limited soil N sources. We studied the uptake of ammonium, nitrate, and a variety of amino acids by alpine plant species in the Kobresia humilis alpine meadow ecosystem in situ. We examined the extent of niche separation in uptake of N source ... |
format |
Article in Journal/Newspaper |
author |
Wang WenYing Ma YongGui Xu Jin Wang HuiChun Zhu JinFu Zhou HuaKun |
author_facet |
Wang WenYing Ma YongGui Xu Jin Wang HuiChun Zhu JinFu Zhou HuaKun |
author_sort |
Wang WenYing |
title |
The uptake diversity of soil nitrogen nutrients by main plant species in Kobresia humilis alpine meadow on the Qinghai-Tibet Plateau |
title_short |
The uptake diversity of soil nitrogen nutrients by main plant species in Kobresia humilis alpine meadow on the Qinghai-Tibet Plateau |
title_full |
The uptake diversity of soil nitrogen nutrients by main plant species in Kobresia humilis alpine meadow on the Qinghai-Tibet Plateau |
title_fullStr |
The uptake diversity of soil nitrogen nutrients by main plant species in Kobresia humilis alpine meadow on the Qinghai-Tibet Plateau |
title_full_unstemmed |
The uptake diversity of soil nitrogen nutrients by main plant species in Kobresia humilis alpine meadow on the Qinghai-Tibet Plateau |
title_sort |
uptake diversity of soil nitrogen nutrients by main plant species in kobresia humilis alpine meadow on the qinghai-tibet plateau |
publishDate |
2012 |
url |
http://210.75.249.4/handle/363003/3604 |
genre |
Tundra |
genre_facet |
Tundra |
op_relation |
SCIENCE CHINA-EARTH SCIENCES Ning, SJ; You, JM; Sun, ZW; Zhang, SJ; Ji, ZY.The uptake diversity of soil nitrogen nutrients by main plant species in Kobresia humilis alpine meadow on the Qinghai-Tibet Plateau,SCIENCE CHINA-EARTH SCIENCES,2012,55(10):1688-1695 http://210.75.249.4/handle/363003/3604 |
_version_ |
1811646108763422720 |