荒漠植物叶片-土壤化学计量及植物内稳态特征

doi:10.13866/j.azr.2024.01.10

摘要/Abstract

摘要：

为了解荒漠植物叶片碳（C）、氮（N）、磷（P）含量与土壤环境因子的关系，以新疆艾比湖保护区高、低水盐环境下14种荒漠植物群落为研究对象，测定植物叶片C、N、P含量，讨论其化学计量比、植物内稳态特征及其与土壤环境因子的关系。结果表明：（1）在不同水盐环境下，土壤有机碳（SOC）、全氮（TN）、C:N、C:P及植物叶片N、P含量存在显著差异。（2）Pearson相关性分析表明，叶片C:P与土壤电导率（EC）、SOC、C:N和C:P呈显著负相关；叶片C与土壤C:N呈显著负相关；叶片P与土壤SOC、C:N，叶片N与土壤C:N、叶片C:N与土壤TN呈显著正相关；叶片P与土壤C:P、叶片C:N与土壤N:P呈极显著正相关；且冗余分析表明，土壤C:P对艾比湖保护区植物叶片C、N、P含量及化学计量特征影响显著。（3）随土壤水盐的变化，植物叶片N、P含量及N:P的内稳态模型模拟结果不显著，内稳性指数H均大于4，属于绝对稳态，说明该研究区植物对土壤养分的适应性良好。

关键词: 荒漠, 植物叶片, 土壤, 化学计量特征, 内稳态, 艾比湖

Abstract:

To understand the relationship between C, N, and P contents of the leaves of desert plants and soil environmental factors, 14 desert plant communities in high and low water or salt environments in Xinjiang Ebinur Lake Nature Reserve were used as research subjects. The C, N, and P contents of the leaves were determined, their stoichiometric ratio, homeostasis characteristics, and their relationship with soil environmental factors were discussed. The results showed that: (1) There were significant differences in soil organic carbon (SOC), total N (TN), C:N, C:P, N, and P contents of leaves under varying water-salt environments. (2) Pearson correlation analysis revealed that the leaf C:P demonstrated a significant negative correlation with soil conductivity (EC), SOC, C:N, and C:P (P<0.05). Leaf C was remarkably negatively correlated with soil C:N (P<0.05). Leaf P was positively correlated with soil SOC and C:N; leaf N was positively correlated with soil C:N; and leaf C:N was positively associated with soil TN (P<0.05). Leaf P was positively correlated with soil C:P and leaf C:N with soil N:P (P<0.05). The redundancy analysis revealed that soil C:P significantly affected the C, N, and P contents and stoichiometric characteristics of the leaves of plants in the Ebinur Lake Nature Reserve. (3) The changes in soil water and salt levels, the contents of N and P in the leaves, and the results of the endostatic model simulation of N:P were insignificant. The internal stability index H was > 4, which belonged to the absolute steady state, indicating that the plants in this study area demonstrated good adaptability to soil nutrients.

Key words: desert, plant leaves, soil, stoichiometric characteristics, endostasis, Ebinur

李敏, 孙杰, 陈雪, 刘佳庆. 荒漠植物叶片-土壤化学计量及植物内稳态特征[J]. 干旱区研究, 2024, 41(1): 104-113.

LI Min, SUN Jie, CHEN Xue, LIU Jiaqing. Leaf-soil stoichiometry and homeostasis characteristics of desert-related plants[J]. Arid Zone Research, 2024, 41(1): 104-113.

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参考文献 43

[1]	Sterner R W, Elser J J. Ecological Stoichiometry: The Biology of Elements from Molecules to the Biosphere[M]. Princeton: Princeton University Press, 2002.
[2]	田地, 严正兵, 方精云. 植物生态化学计量特征及其主要假说[J]. 植物生态学报, 2021, 45(7): 682-713. doi: 10.17521/cjpe.2020.0331
	[Tian Di, Yan Zhengbing, Fang Jingyun. Stoichiometry characteristics of plant ecology and its main hypotheses[J]. Chinese Journal of Plant Ecology, 2021, 45(7): 682-713.] doi: 10.17521/cjpe.2020.0331
[3]	杨文, 周脚根, 王美慧, 等. 亚热带丘陵小流域土壤碳氮磷生态计量特征的空间分异性[J]. 土壤学报, 2015, 52(6): 1336-1344.
	[Yang Wen, Zhou Jiaogen, Wang Meihui, et al. Spatial heterometric characteristics of soil carbon, nitrogen and phosphorus ecometric characteristics in small watersheds of subtropical hills[J]. Journal of Soil Science, 2015, 52(6): 1336-1344.]
[4]	Yang Y, Liu B R, An S S. Ecological stoichiometry in leaves, roots, litters and soil among different plant communities in a desertified region of Northern China[J]. Catena, 2018, 166(46): 328-338. doi: 10.1016/j.catena.2018.04.018
[5]	俞月凤, 何铁光, 曾成城, 等. 喀斯特区不同退化程度植被群落植物-凋落物-土壤-微生物生态化学计量特征[J]. 生态学报, 2022, 42(3): 935-946.
	[Yu Yuefeng, He Tieguang, Zeng Chengcheng, et al. Ecostoichiometry characteristics of vegetation communities with different degrees of degradation of vegetation communities, litter, soil, microorganisms[J]. Acta Ecological Sinica, 2022, 42(3): 935-946.]
[6]	赵君. 甘南亚高寒草甸金露梅氮磷化学计量特征及其机制的研究[D]. 兰州: 兰州大学, 2011.
	[Zhao Jun. Study on Stoichiometric Characteristics of Nitrogen and Phosphorus and its Mechanism in Gannan Alpine Meadow[D]. Lanzhou: Lanzhou University, 2011.]
[7]	陶韦, 武嘉文, 刘长发, 等. 翅碱蓬生态化学计量内稳性对模拟氮磷沉降的响应[J]. 水生态学杂志, 2017, 38(4): 18-26.
	[Tao Wei, Wu Jiawen, Liu Changfa, et al. Response of ecostoichiometric internal stability to simulated nitrogen and phosphorus deposition in P pterosa ensis[J]. Chinese Journal of Hydroecology, 2017, 38(4): 18-26.]
[8]	Van der Putten W H, Bardgett R D, Bever J D. Plant-soil feedbacks: The past, the present and future challenges[J]. Journal of Ecology, 2013, 101(2): 265-276. doi: 10.1111/jec.2013.101.issue-2
[9]	苏宇航, 宋晓倩, 郑晶文, 等. 四种藜科植物不同器官主要营养元素化学计量特征比较[J]. 生态学杂志, 2023, 42(3): 626-634.
	[Su Yuhang, Song Xiaoqian, Zheng Jingwen, et al. Comparison of the stoichiometric characteristics of major nutrient elements in different organs of four chenopodium species[J]. Chinese Journal of Ecology, 2023, 42(3): 626-634.]
[10]	胡锦香. 刈割和养分添加对内蒙古典型草原植物生态化学计量特征的影响[D]. 呼和浩特: 内蒙古大学, 2021.
	[Hu Jinxiang. Effects of Cutting and Nutrient Addition on Ecological Stoichiometric Characteristics of Typical Grasslands in Inner Mongolia[D]. Hohhot: Inner Mongolia University, 2021.]
[11]	周怡. 敦煌阳关湿地克隆植物芦苇生态化学计量特征的空间变化研究[D]. 兰州: 西北师范大学, 2023.
	[Zhou Yi. Spatial Changes of Ecological Stoichiometric Characteristics of Clonal Plant Reed in Yangguan Wetland, Dunhuang[D]. Lanzhou: Northwest Normal University, 2023.]
[12]	王小娜. 不同森林类型对植物群落结构、植物、凋落物和土壤生态化学计量特征的影响[D]. 兰州: 兰州大学, 2023.
	[Wang Xiaona. Effects of Different Forest Types on Plant Community Structure, Plant, Litter and Soil Ecological Stoichiometric Characteristics[D]. Lanzhou: Lanzhou University, 2023.]
[13]	赵航, 贾彦龙, 王秋凤. 中国地带性森林和农田生态系统C-N-P化学计量统计特征[J]. 第四纪研究, 2014, 34(4): 803-814.
	[Zhao Hang, Jia Yanlong, Wang Qiufeng. C-N-P stoichiometric statistical characteristics of zonal forest and farmland ecosystems in China[J]. Quaternary Sciences, 2014, 34(4): 803-814.]
[14]	王军强, 刘彬, 常凤, 等. 博斯腾湖湖滨带水盐梯度下植物功能性状及生态化学计量特征分析[J]. 植物生态学报, 2022, 46(8): 961-970. doi: 10.17521/cjpe.2021.0434
	[Wang Junqiang, Liu Bin, Chang Feng, et al. Analysis of plant functional traits and ecological stoichiometry characteristics under water salt gradient in Bosten Lake coastal zone[J]. Chinese Journal of Plant Ecology, 2022, 46(8): 961-970.] doi: 10.17521/cjpe.2021.0434
[15]	郄亚栋, 蒋腊梅, 吕光辉, 等. 温带荒漠植物叶片功能性状对土壤水盐的响应[J]. 生态环境学报, 2018, 27(11): 2000-2010. doi: 10.16258/j.cnki.1674-5906.2018.11.004
	[Qie Yadong, Jiang Lamei, Lu Guanghui, et al. Response of leaf functional traits of temperate desert plants to soil water and salt[J]. Ecology and Environmental Sciences, 2018, 27(11): 2000-2010.] doi: 10.16258/j.cnki.1674-5906.2018.11.004
[16]	郄亚栋. 水盐影响下的梭梭生理响应机制及其生态适应[D]. 乌鲁木齐: 新疆大学, 2018.
	[Qie Yadong. Physiological Response Mechanism and Ecological Adaptation of Shuttlefish under the Influence of Water and Salt[D]. Urumqi: Xinjiang University, 2018.]
[17]	徐莉, 李艳红, 海米提·依米提, 等. 艾比湖湿地不同植物群落下土壤水盐空间变异性[J]. 水土保持通报, 2013, 33(6): 279-284.
	[Xu Li, Li Yanhong, Haimiti Yimiti, et al. Spatial variability of soil water and salt under different plant communities in Abi Lake wetland[J]. Bulletin of Soil and Water Conservation, 2013, 33(6): 279-284.]
[18]	Koojiman S A L M. The stoichiometry of animal energetics[J]. Journal of Theoretical Biology, 1995, 177(2): 139-149. doi: 10.1006/jtbi.1995.0232
[19]	Yu Q, Wilcox K, Pierre K L. Stoichiometric homeostasis predicts plant species dominance, temporal stability, and responses to global change[J]. Ecology, 2015, 96(2): 2328-2335. doi: 10.1890/14-1897.1
[20]	Persson J, Fink P, Goto A, et al. To be or not to be what you eat: Regulation of stoichiometric homeostasis among autotrophs and heterotrophs[J]. Oikos, 2010, 119(5): 741-751. doi: 10.1111/j.1600-0706.2009.18545.x
[21]	Tian H Q, Chen G S, Zhang C. Pattern and variation of C: N: P ratios in China’s soil: A synthesis of observational data[J]. Biogeochemistry, 2010, 98(1): 139-151. doi: 10.1007/s10533-009-9382-0
[22]	Chapin III FS. Nutrient allocation and responses to defoliation in tundra plants[J]. Arctic and Alpine Research, 1980, 12(4): 553-563. doi: 10.2307/1550500
[23]	黄磊, 张永娥, 邵芳丽, 等. 冀北山地天然次生林土壤生态化学计量特征及影响因素[J]. 生态学报, 2021, 41(15): 6267-6279.
	[Huang Lei, Zhang Yong’e, Shao Fangli, et al. Soil ecostoichiometry characteristics and influencing factors of natural secondary forest in northern Hebei[J]. Acta Ecological Sinica, 2021, 41(15): 6267-6279.]
[24]	李从娟, 徐新文, 孙永强, 等. 不同生境下三种荒漠植物叶片及土壤C、N、P的化学计量特征[J]. 干旱区地理, 2014, 37(5): 996-1004.
	[Li Congjuan, Xu Xinwen, Sun Yongqiang, et al. Stoichiometric characteristics of leaves and soil C, N and P of three desert plants under different habitats[J]. Arid Land Geography, 2014, 37(5): 996-1004.]
[25]	聂明鹤, 沈艳, 陆颖, 等. 宁夏盐池县荒漠草原区不同群落优势植物叶片-土壤生态化学计量特征[J]. 草地学报, 2021, 29(1): 131-140. doi: 10.11733/j.issn.1007-0435.2021.01.016
	[Nie Minghe, Shen Yan, Lu Ying, et al. Leaf-soil ecostoichiometric characteristics of dominant plants in different communities in desert grassland area of Yanchi County, Ningxia[J]. Journal of Grassland, 2021, 29(1): 131-140.] doi: 10.11733/j.issn.1007-0435.2021.01.016
[26]	娄泊远, 王永东, 闫晋升, 等. 亚寒带荒漠草原不同树种人工林土壤生态化学计量特征[J]. 干旱区研究, 2021, 38(5): 1385-1392.
	[Lou Boyuan, Wang Yongdong, Yan Jinsheng, et al. Soil ecostoichiometry characteristics of plantations of different tree species in subarctic desert steppe[J]. Arid Zone Research, 2021, 38(5): 1385-1392.]
[27]	何家莉, 宋怡珂, 王金牛, 等. 岷江源区高山林草交错带土壤碳、氮、磷生态化学计量关系的时空变化[J]. 应用与环境生物学报, 2021, 27(4): 869-877.
	[He Jiali, Song Yike, Wang Jinniu, et al. Spatial-temporal variation of soil carbon, nitrogen and phosphorus ecostoichiometry in alpine forest-grass interlaced zone of Minjiang source area[J]. Chinese Journal of Applied and Environmental Biology, 2021, 27(4): 869-877.]
[28]	Farrington V H. Nutrient limitation and soil development: Experimental test of a biogeochemical theory[J]. Biogeochemistry, 1997, 37(1): 63-75. doi: 10.1023/A:1005757218475
[29]	陈悦, 吕光辉, 曹靖, 等. 荒漠土壤水、盐、有机质空间分布及相互关系[J]. 江苏农业科学, 2018, 46(12): 254-257, 265.
	[Chen Yue, Lv Guanghui, Cao Jing, et al. Spatial distribution and interrelationship of water, salt and organic matter in desert soil[J]. Jiangsu Agricultural Sciences, 2018, 46(12): 254-257, 265.]
[30]	单秀枝, 魏由庆, 严慧峻, 等. 土壤有机质含量对土壤水动力学参数的影响[J]. 土壤学报, 1998, 35(1): 1-9. doi: 10.1111/ejs.1984.35.issue-1
	[San Xiuzhi, Wei Youqing, Yan Huijun, et al. Effects of soil organic matter content on soil hydrodynamic parameters[J]. Journal of Soil Science, 1998, 35(1): 1-9.] doi: 10.1111/ejs.1984.35.issue-1
[31]	Güsewell S. N: P ratios in terrestrial plants: Variation and functional significance[J]. New Phytologist, 2004, 164(2): 243-266. doi: 10.1111/j.1469-8137.2004.01192.x pmid: 33873556
[32]	李蕊希, 吴雪, 贡璐. 塔里木河上游典型荒漠植物叶片性状及其与土壤因子的关系[J]. 生态学报, 2022, 42(13): 5360-5370.
	[Li Ruixi, Wu Xue, Gong Lu. Leaf traits of typical desert plants in the upper reaches of Tarim River and their relationship with soil factors[J]. Acta Ecological Sinica, 2022, 42(13): 5360-5370.]
[33]	Elser J J, Sterner R W, Gorokhova E. Biological stoichiometry from genes to ecosystems[J]. Ecology Letters, 2000, 3(6): 540-550. doi: 10.1111/ele.2000.3.issue-6
[34]	万芳, 蒙仲举, 党晓宏. 荒漠草原建群种及其枯落物的C、N、P生态化学计量特征[J]. 东北林业大学学报, 2020, 48(2): 29-33.
	[Wan Fang, Meng Zhongju, Dang Xiaohong. Ecostoichiometry characteristics of C, N and P of desert steppe vegetation species and their litter[J]. Journal of Northeast Forestry University, 2020, 48(2): 29-33.]
[35]	Aerts R. Nutrient resorption from senscing leaves of perennials; are there general patterns[J]. Journal of Ecology, 1996, 84(4): 597-608. doi: 10.2307/2261481
[36]	Elser J J, Dobberfuhl D R, MacKay N A, et al. Organism size, life history and N: P stoichiometry: Toward a unified view of cellular and ecosystem processes[J]. BioScience, 1996, 46(9): 674-684. doi: 10.2307/1312897
[37]	Koerselman W, Meuleman A F M. The vegetation N: P ratio: A new tool to detect the nature of nutrien ltimitation[J]. The Journal of Applied Ecology, 1996, 33(6): 1441. doi: 10.2307/2404783
[38]	He M Z, Dijkstra F A, Zhang K, et al. Leaf nitrogen and phosphorus of temperate desert plants in response to climate andsoil nutrient availability[J]. Scientific Reports, 2014, 4(1): 6932-6939. doi: 10.1038/srep06932
[39]	Zhang J H, Zhao N, Liu C C, et al. C: N: P stoichiometry in China’s forests: From organs to ecosystems[J]. Functional Ecology, 2017, 32(2): 50-60. doi: 10.1111/fec.2018.32.issue-1
[40]	谢明君, 李广, 闫丽娟, 等. 黄土丘陵区春小麦水分调控下植物-土壤碳氮磷化学计量学及其稳态性特征[J]. 干旱地区农业研究, 2022, 40(1): 184-192, 202.
	[Xie Mingjun, Li Guang, Yan Lijuan, et al. Plant-soil carbon, nitrogen and phosphorus stoichiometry and steady-state characteristics of spring wheat water regulation in loess hilly area[J]. Agricultural Research in the Arid Areas, 2022, 40(1): 184-192, 202.]
[41]	Elser J J, Fagan W F, Kerkhoff A J, et al. Biological stoichiometry of plant production metabolism, scaling and ecological response to global change[J]. New Phytologist, 2010, 186(3): 593-608. doi: 10.1111/j.1469-8137.2010.03214.x pmid: 20298486
[42]	Yu Q, Chen Q, Elser J J, et al. Linking stoichiometric homoeostasis with ecosystem structure, functioning and stability[J]. Ecology Letters, 2010, 13(11): 1390-1399. doi: 10.1111/j.1461-0248.2010.01532.x pmid: 20849443
[43]	Yu Q, Elser J, He N, et al. Stoichiometric homeostasis of vascular plants in the Inner Mongolia grassland[J]. Oecologia, 2011, 166(1): 1-10. doi: 10.1007/s00442-010-1902-z pmid: 21221646

样地号	群落名称	群落物种	地貌特征
A1	梭梭-沙蒿	梭梭、沙蒿、刺蓬	平沙地
A2	梭梭-沙蒿	梭梭、沙蒿、沙拐枣	平沙地
A3	梭梭-麻黄	梭梭、沙蒿、刺蓬、麻黄、碱蓬	小山丘
A4	梭梭-骆驼刺	梭梭、骆驼刺、刺蓬、碱蓬	细砂地
A5	梭梭-沙蒿	梭梭、骆驼刺、刺蓬、沙蒿	细砂地
A6	胡杨-沙蒿	胡杨、沙蒿、碱蓬	细砂地
A7	胡杨-骆驼刺	胡杨、骆驼刺、琵琶柴、沙蒿	平沙地
A8	胡杨-梭梭	胡杨、梭梭、琵琶柴	盐碱地
A9	胡杨-梭梭	胡杨、梭梭、琵琶柴、骆驼刺、罗布麻、花花柴	平沙地
A10	胡杨-骆驼刺	胡杨、琵琶柴、骆驼刺、芦苇、沙蒿	平沙地
A11	胡杨-琵琶柴	胡杨、琵琶柴、盐节木、白刺、刺蓬、碱蓬	平沙地、有结皮
A12	胡杨-柽柳	胡杨、柽柳、骆驼刺、琵琶柴、碱蓬、梭梭	平沙地、有结皮
A13	胡杨-盐豆木	胡杨、盐豆木、柽柳、琵琶柴、碱蓬	平沙地
A14	胡杨-盐豆木	胡杨、盐豆木、梭梭、罗布麻	平沙地

土壤环境因子	重要性排序	F	P
C:P	1	7.6	0.004
C:N	2	4.6	0.008
pH	3	1.8	0.158
SWC	4	0.9	0.368
TP	5	0.9	0.384
N:P	6	0.5	0.57
TN	7	0.2	0.71
EC	8	0.2	0.736
SOC	9	0.2	0.824