植物研究 ›› 2022, Vol. 42 ›› Issue (5): 910-920.doi: 10.7525/j.issn.1673-5102.2022.05.022
• 生理与生态 • 上一篇
苏宇航1,2, 宋晓倩1,2, 郑晶文1,2, 张衷华1,2(), 唐中华1,2
收稿日期:
2022-02-15
出版日期:
2022-09-20
发布日期:
2022-09-15
通讯作者:
张衷华
E-mail:en_cn@126.com
作者简介:
苏宇航(1997—),女,硕士研究生,主要从事耐盐植物相关研究。
基金资助:
Yuhang SU1,2, Xiaoqian SONG1,2, Jingwen ZHENG1,2, Zhonghua ZHANG1,2(), Zhonghua TANG1,2
Received:
2022-02-15
Online:
2022-09-20
Published:
2022-09-15
Contact:
Zhonghua ZHANG
E-mail:en_cn@126.com
About author:
SU Yuhang(1997—),female,master degree student,mainly engaged in research on salt-tolerant plants.
Supported by:
摘要:
盐碱土区植物可利用营养匮乏是植物生物量限制的主要因素之一,藜科(Chenopodiaceae)植物是盐碱环境中的最大类群,其整体营养策略对盐碱地育种和农业开发具有重要意义。本研究以呼伦贝尔4种典型盐碱地藜科植物碱蓬(Suaeda glauca)、尖头叶藜(Chenopodium acuminatum)、刺沙蓬(Salsola tragus)、雾冰藜(Bassia dasyphylla)为研究对象,通过分析不同器官C、N、P生态化学计量特征,试图揭示藜科植物C、N、P计量特征共性及其与土壤因子之间的耦合关系。结果显示:①藜科植物茎、叶N/P>16,根N/P<14;各器官C、N含量显著相关,且根C含量>茎C含量>叶C含量,N含量表现为叶N含量>茎N含量>根N含量,表明N元素从根、茎到叶之间具有良好的转移效率。②相对于C元素和N元素,各器官内P元素含量具有最大变异系数,叶P、茎P含量与叶N、根N含量显著正相关,根P含量与叶N、根N含量显著负相关,表明N、P元素在叶和根中具有较强的协调关系。③RDA排序表明土壤P是影响植物叶片化学计量的主要因素,土壤K是茎化学计量变异的主要因素,土壤N是根化学计量变异的主要因素。本研究发现藜科植物通过叶N、叶P积累和N、P协调降低土壤N、P限制的影响,对于盐碱土营养管理具有重要意义。
中图分类号:
苏宇航, 宋晓倩, 郑晶文, 张衷华, 唐中华. 呼伦贝尔盐生藜科植物不同器官C、N、P生态化学计量特征及其与土壤因子的关系[J]. 植物研究, 2022, 42(5): 910-920.
Yuhang SU, Xiaoqian SONG, Jingwen ZHENG, Zhonghua ZHANG, Zhonghua TANG. Ecological Stoichiometric Characteristics of C, N and P and Their Relationship with Soil Factors from Different Organs of the Halophytic Chenopodiaceae Plants in Hulunbuir[J]. Bulletin of Botanical Research, 2022, 42(5): 910-920.
表1
藜科植物形态特征
种类 Variety | 属 Genus | 形态特征 Morphological characteristics |
---|---|---|
碱蓬 Suaedaglauca | 碱蓬属 Suaeda | 茎直立,浅绿色,叶丝状条形,半圆柱状,灰绿色,光滑无毛。花着生于叶的近基部,花被呈五角星状,花药宽卵形至矩圆形 Stem erect,light green,filamentous linear,semi-cylindrical,gray-green,smooth and hairless. Flowers mostly inserted near base of leaves.Pentagram-shaped perianth,anthers obovate to oblong. |
尖头叶藜 Chenopodium acuminatum | 藜属 Chenopodium | 叶片呈卵状或披针形,上面无粉,浅绿色,下面有粉,灰白色,全缘并具半透明环边 Leaf ovate or lanceolate,adaxially light green and not farinose,abaxially gray-white farinose,leaf entire with translucent ring |
刺沙蓬 Salsola tragus | 猪毛菜属 Salsola | 叶顶端有刺状尖,小苞片卵形,花被长卵形,自背面中部生翅,在翅以上部分近革质,顶端薄膜质,向中央聚集,包覆果实 Leaf apex spinose mucronate, bractlet ovate, perianth narrowly ovate, Wing grow from the middle of the back, the part above the wing are subleathery, apex membranous, gather in the center and enclosing utricle |
雾冰藜 Bassia dasyphylla | 雾冰藜属 Bassia | 叶互生,肉质,圆柱状或半圆柱状条形,密被长柔毛 Leaves alternate,fleshy,terete or semiterete linear,densely villous |
表2
藜科植物采样地点经纬度
种类 Variety | 采样点经纬度 Longitude and latitude of sampling point |
---|---|
碱蓬 S.glauca | 117°15′21.43″E,48°27′50.29″N 116°51′40.83″E,48°49′12.7″N |
尖头叶藜 C. acuminatum | 116°51′40.83″E,48°49′12.7″N 117°15′21.43″E,48°27′50.29″N |
刺沙蓬 S. tragus | 117°52′11.22″E,48°20′55.06″N 116°51′40.83″E,48°20′55.06″N |
雾冰藜 B. dasyphylla | 117°15′21.43″E,48°27′50.29″N |
表3
藜科植物根茎叶C、N、P计量特征
器官 Organ | 样本量 Number of samples | C | N | P | C/N | C/P | N/P | ||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
测量值 Value | CV | 测量值 Value | CV | 测量值 Value | CV | 测量值 Value | CV | 测量值 Value | CV | 测量值 Value | CV | ||
叶Leaf | 24 | 301.81±42.91c | 0.14 | 19.68±1.35a | 0.06 | 1.00±0.38a | 0.37 | 15.39±2.38c | 0.15 | 334.04±103.99b | 0.31 | 21.79±6.11a | 0.28 |
茎Stem | 24 | 337.97±36.98b | 0.11 | 14.54±1.63b | 0.11 | 0.95±0.28a | 0.29 | 23.58±4.02b | 0.17 | 377.61±84.44b | 0.22 | 16.32±4.07b | 0.25 |
根Root | 24 | 421.36±52.05a | 0.12 | 10.57±1.73c | 0.16 | 0.94±0.29a | 0.30 | 41.69±12.23a | 0.29 | 485.88±151.64a | 0.31 | 12.59±5.65c | 0.45 |
表4
藜科植物根茎叶C、N、P含量及计量比的关系
器官 Organ | 叶Leaf | 茎Stem | 根Root | |||||||
---|---|---|---|---|---|---|---|---|---|---|
C | N | P | C | N | P | C | N | P | ||
叶Leaf | C | 1.000 | ||||||||
N | 0.155 | 1.000 | ||||||||
P | 0.195 | 0.484** | 1.000 | |||||||
茎Stem | C | 0.956** | 0.181 | 0.250 | 1.000 | |||||
N | 0.019 | 0.303 | 0.286 | -0.067 | 1.000 | |||||
P | 0.241 | 0.566** | 0.282 | 0.272 | 0.297 | 1.000 | ||||
根Root | C | 0.656* | -0.176 | 0.159 | 0.665* | -0.099 | -0.092 | 1.000 | ||
N | -0.291 | 0.667** | 0.263 | -0.181 | 0.209 | 0.598** | -0.566** | 1.000 | ||
P | 0.003 | -0.494* | -0.496* | -0.018 | -0.489 | -0.405* | 0.041 | -0.427* | 1.000 | |
叶Leaf | C/N | 0.895** | -0.303 | -0.014 | 0.883** | -0.137 | -0.018 | 0.736** | -0.593* | 0.184 |
C/P | 0.324 | -0.304 | -0.835** | 0.303 | -0.255 | -0.176 | 0.066 | -0.333 | 0.458 | |
N/P | -0.198 | -0.193 | -0.933** | -0.217 | -0.157 | -0.224 | -0.353 | -0.052 | 0.426 | |
茎Stem | C/N | 0.628* | -0.069 | -0.065 | 0.713** | -0.739** | 0.003 | 0.492* | -0.251 | 0.345 |
C/P | 0.239 | -0.521* | -0.123 | 0.238 | -0.158 | -0.824** | 0.502* | -0.718** | 0.295 | |
N/P | -0.257 | -0.447* | -0.145 | -0.326 | -0.299 | -0803** | 0.073 | -0.510* | 0.112 | |
根Root | C/N | 0.481 | -0.520** | -0.035 | 0.408* | -0.052 | -0.399 | 0.818** | -0.915** | 0.230 |
C/P | 0.314 | 0.576** | 0.605** | 0.355 | 0.420 | 0.584** | 0.249 | 0.354 | -0.859** | |
N/P | -0.013 | 0.724** | 0.521** | 0.056 | 0.432 | 0.724** | -0.255 | 0.768** | -0.810** |
表6
藜科植物根茎叶生态化学计量与土壤因子的关系
器官 Organ | 土壤因子 Soil factors | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
pH | Ece | C (g·kg-1) | N (g·kg-1) | P (g·kg-1) | C/N | C/P | N/P | K (g·kg-1) | Na (g·kg-1) | ||
C | 叶Leaf | 0.381 | 0.182 | -0.309 | -0.551 | 0.357 | 0.534 | -0.809** | -0.844** | -0.547 | -0.133 |
茎Stem | 0.420 | 0.117 | -0.296 | -0.488 | 0.359 | 0.458 | -0.798** | -0.823** | -0.485 | -0.163 | |
根Root | 0.206 | 0.666* | -0.384 | -0.609* | 0.234 | 0.563 | -0.687* | -0.703* | -0.192 | 0.178 | |
N | 叶Leaf | -0.019 | 0.149 | 0.116 | 0.227 | 0.462 | -0.295 | -0.243 | -0.210 | -0.098 | 0.022 |
茎Stem | 0.328 | 0.072 | 0.552 | 0.318 | 0.309 | -0.014 | 0.076 | 0.082 | 0.141 | 0.600* | |
根Root | -0.239 | -0.035 | 0.315 | 0.578* | 0.178 | -0.684* | -0.190 | 0.247 | 0.071 | 0.024 | |
P | 叶Leaf | 0.623* | 0.250 | 0.179 | 0.202 | 0.977** | -0.185 | -0.560 | -0.480 | -0.023 | 0.347 |
茎Stem | 0.232 | 0.035 | 0.035 | -0.040 | 0.323 | 0.097 | 0.398 | 0.375 | -0.595* | 0.053 | |
根Root | -0.305 | -0.146 | -0.493 | -0.435 | -0.529 | 0.211 | 0.151 | 0.110 | -0.150 | -0.490 | |
C/N | 叶Leaf | 0.391 | 0.101 | -0.337 | -0.621* | 0.138 | 0.643* | -0.660* | -0.707* | -0.454 | -0.126 |
茎Stem | 0.032 | -0.010 | -0.606* | -0.505 | -0.008 | 0.294 | -0.568 | 0.588* | -0.446 | -0.578* | |
根Root | 0.381 | 0.284 | -0.318 | -0.620* | 0.056 | 0.716* | -0.438 | -0.477 | -0.097 | 0.142 | |
C/P | 叶Leaf | -0.414 | -0.256 | -0.261 | -0.384 | -0.727** | 0.385 | 0.173 | 0.078 | -0.243 | -0.453 |
茎Stem | 0.129 | 0.125 | -0.035 | -0.176 | -0.100 | 0.357 | -0.017 | -0.044 | 0.449 | 0.127 | |
根Root | 0.449 | 0.316 | 0.267 | 0.188 | 0.666* | -0.098 | -0.515 | -0.468 | -0.046 | 0.441 | |
N/P | 叶Leaf | -0.680* | -0.348 | -0.096 | -0.069 | -0.911** | 0.069 | 0.622* | 0.544 | 0.047 | -0.414 |
茎Stem | 0.025 | 0.059 | 0.332 | 0.204 | -0.170 | 0.104 | 0.448 | 0.434 | 0.715** | 0.423 | |
根Root | 0.241 | 0.048 | 0.396 | 0.482 | 0.522 | -0.450 | -0.178 | -0.116 | 0.010 | 0.294 |
表7
环境因子蒙德卡罗检验
土壤因子 Soil factors | 叶 Leaf | 茎 Stem | 根 Root | ||||||
---|---|---|---|---|---|---|---|---|---|
解释率 Explains /% | F | P | 解释率 Explains /% | F | P | 解释率 Explains /% | F | P | |
pH | 28.7 | 4.0 | 0.040 | 2.6 | 0.3 | 0.820 | 9.2 | 1.0 | 0.424 |
EC | 5.9 | 0.6 | 0.564 | 0.8 | <0.1 | 0.934 | 7.0 | 0.8 | 0.450 |
C | 5.8 | 0.6 | 0.500 | 11.5 | 1.3 | 0.266 | 14.9 | 1.8 | 0.198 |
N | 13.0 | 1.5 | 0.222 | 9.8 | 1.1 | 0.382 | 25.5 | 3.4 | 0.042 |
P | 55.6 | 12.5 | 0.002 | 6.9 | 0.7 | 0.504 | 18.0 | 2.2 | 0.146 |
C/N | 12.3 | 1.4 | 0.250 | 6.9 | 0.7 | 0.516 | 24.1 | 3.2 | 0.062 |
C/P | 26.0 | 3.5 | 0.040 | 19.2 | 2.4 | 0.114 | 13.9 | 1.6 | 0.194 |
N/P | 22.5 | 2.9 | 0.064 | 19.3 | 2.4 | 0.126 | 13.6 | 1.6 | 0.254 |
K | 6.1 | 0.7 | 0.522 | 30.3 | 4.3 | 0.012 | 1.1 | 0.1 | 0.936 |
Na | 13.9 | 1.6 | 0.206 | 12.2 | 1.4 | 0.264 | 11.3 | 1.3 | 0.308 |
表8
不同区域植物各器官生态化学计量
区域/植物种类 Region/plant species | 器官 Organ | C (g·kg-1) | N (g·kg-1) | P (g·kg-1) | C/N | C/P | N/P | 参考文献 References | |
---|---|---|---|---|---|---|---|---|---|
藜科植物 | 本研究 This study | 叶Leaf | 301.81 | 19.68 | 1.00 | 15.39 | 334.04 | 21.79 | 本研究 |
茎Stem | 337.97 | 14.54 | 0.95 | 23.58 | 377.61 | 16.32 | |||
根Root | 421.36 | 10.57 | 0.94 | 41.69 | 485.88 | 12.59 | |||
全国平均 Average in China | 叶Leaf | 436.80 | 14.14 | 1.21 | 30.90 | 393.50 | 12.70 | [ | |
茎Stem | 448.30 | 3.04 | 0.31 | 147.50 | 1446.10 | 9.80 | |||
根Root | 418.20 | 4.85 | 0.47 | 86.20 | 889.80 | 10.30 | |||
全球平均 Global average | 叶Leaf | 464.00 | 17.66 | 1.58 | 22.50 | 232.00 | 13.07 | [ | |
中国湿地植物 wetland plants in China | 叶Leaf | 16.07 | 1.85 | 8.67 | [ | ||||
荒漠植物 Desert plants | 叶Leaf | 451.65 | 16.98 | 1.08 | 29.83 | 577.68 | 19.34 | [ | |
根Root | 443.62 | 7.44 | 1.06 | 59.64 | 418.91 | 7.02 | [ | ||
滨海藜科植物 Chenopodiaceae in coastal wetlands | 叶Leaf | 230.16 | 14.87 | 1.52 | 16.25 | 159.62 | 10.02 | [ | |
滦河口湿地藜科植物 Chenopodiaceae in luanhe estuary wetland | 叶Leaf | 212.40 | 9.68 | 0.86 | 22.03 | 249.88 | 11.33 | [ | |
新疆藜科植物 Chenopodiaceae in Xinjiang | 叶Leaf | 336.63 | 22.51 | 2.02 | 17.54 | 430.08 | 24.64 | [ | |
禾本科盐生植物 Gramineae halophytes | 叶Leaf | 433.39 | 18.80 | 0.95 | 23.93 | 475.04 | 20.76 | [ |
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