刺槐幼苗非结构性碳水化合物对NaCl胁迫的动态响应

doi:10.11707/j.1001-7488.20220104

Abstract

Abstract:

Objective: In this study, the dynamic changes of non-structural carbohydrates (NSC) of Robinia pseudoacacia under NaCl stress was investigated, which is of great theoretical and practical significance for revealing its adaptation mechanism to NaCl stress and the management of R. pseudoacacia platation. Method: In this study, the 1-year-old R. pseudoacacia seedlings were used as the research object, and the relative growth rate, biomass allocation and NSC variation rules of the seedlings under different NaCl concentrations (0, 1.5‰, 3‰ and 4.5‰) were studied through a pot experiment. Result: 1) With the increase of soil NaCl concentration, the relative growth rate of ground diameter and height of R. pseudoacacia seedlings decreased significantly. With the increase of NaCl stress duration, leaf biomass decreased gradually, while root biomass did not change significantly. Resulting in a significant decrease in leaf biomass ratio, and a significant increase in root biomass ratio and root-shoot ratio. 2) The contents of NSC (soluble sugars and starch), in coarse roots, fine roots, stems and leaves were not significantly different when the soil NaCl concentration was in a range of 0, 1.5‰ and 3‰, but were significantly decreased when the soil NaCl concentration reached 4.5‰. Especially, the starch content of coarse roots was significantly higher than that of fine roots, stems and leaves. 3) Correlation analysis showed that relative growth rates of ground diameter and height of seedling were significantly positively correlated with leaf biomass ratio and soluble sugars of coarse roots, and negatively correlated with root biomass ratio and root-shoot ratio. There was a significant positive correlation between coarse root starch and fine root soluble sugar and stem soluble sugar, stem starch and stem soluble sugar, indicating that the dynamic changes of NSC affected the biomass allocation and the coordinated growth of organs, which is a vital index of R. pseudoacacia's adaptablity to NaCl stress. 4) The principal component analysis showed that the adaptability of R. pseudoacacia under NaCl stress could be simplified into three principal components: growth index, coarse root NSC and stem NSC, and the contribution rates were 43.05%, 15.99% and 14.65%, respectively and the cumulative contribution rate was 73.69%. Conclusion: NaCl stress significantly inhibits the growth of R. pseudoacacia seedlings. The decrease of NSC input to leaves and the increase of NSC input to roots lead to the decrease of seedling growth. Soluble sugars are the main form of NSC, influencing tree growth under salt stress. Coarse root is the main strorage organ of starch; while starch is not directly involved in tree growth but is the important source of soluble sugars. As a result, the allocation of root biomass and the coordination of NSC in seedlings are two important adaptive mechanisms for R. pseudoacacia growth under NaCl stress.

Key words: Robinia pseudoacacia, NaCl stress, growth, soluble sugar, starch

CLC Number:

S718.43

Lin Qi,Longmei Guo,Youde Liu,Banghua Cao,Peili Mao,Zexiu Li. Dynamic Responses of Non-Structural Carbohydrates in Robinia pseudoacacia Seedlings to NaCl Stress[J]. Scientia Silvae Sinicae, 2022, 58(1): 32-42.

Figures/Tables 8

Fig.1

Fig.2

Fig.3

Fig.4

Fig.5

Fig.6

Table 1

Correlation analysis of growth, biomass allocation, and NSC of R. pseudoacacia seedlings under NaCl stress"

指标 Index	相对地径生长速率 RGR_D	相对高生长速率 RGR_H	根生物量 Root biomass	茎生物量 Stem biomass	叶生物量 Leaf biomass	总生物量 Total biomass	根生物量比 RMR	茎生物量比 SMR	叶生物量比 LMR	根冠比 R/S	粗根可溶性糖 Coarse root soluble sugar	细根可溶性糖 Fine root soluble sugar	茎可溶性糖 Stem soluble sugar	叶可溶性糖 Leaf soluble sugar	粗根淀粉 Coarse root starch	细根淀粉 Fine root starch	茎淀粉 Stem starch	叶淀粉 Leaf starch	粗根非结构性碳水化合物 Coarse root NSC	细根非结构性碳水化合物 Fine root NSC	茎非结构性碳水化合物 Stem NSC
相对高生长速率RGR_H	0.868^**
根生物量Root biomass	0.171	0.386
茎生物量Stem biomass	0.874^**	0.927^**	0.548
叶生物量Leaf biomass	0.849^**	0.869^**	0.450	0.966^**
总生物量Total biomass	0.788^**	0.869^**	0.664^*	0.982^**	0.962^**
根生物量比RMR	-0.866^**	-0.771^**	-0.139	-0.826^**	-0.901^**	-0.787^**
茎生物量比SMR	0.543	0.414	-0.250	0.303	0.165	0.139	-0.238
叶生物量比LMR	0.664^*	0.620^*	0.241	0.719^*	0.851^**	0.745^**	-0.922^**	-0.156
根冠比R/S	-0.832^**	-0.743^**	-0.178	-0.801^**	-0.877^**	-0.775^**	0.992^**	-0.176	-0.939^**
粗根可溶性糖Coarse root soluble sugar	0.604^*	0.637^*	0.418	0.762^**	0.794^**	0.776^**	-0.756^**	0.138	0.713^*	-0.747^**
细根可溶性糖Fine root soluble sugar	0.137	-0.010	0.590	0.339	0.380	0.453	-0.245	-0.284	0.362	-0.274	0.444
茎可溶性糖 Stem soluble sugar	-0.168	-0.123	0.470	0.084	0.100	0.191	-0.055	-0.361	0.200	-0.101	0.558	0.535
叶可溶性糖 Leaf soluble sugar	0.677^*	0.526	0.282	0.636^*	0.735^**	0.667^*	-0.806^**	-0.109	0.863^**	-0.833	0.514	0.393	0.035
粗根淀粉 Coarse root starch	-0.136	-0.136	0.497	0.035	-0.025	0.118	0.161	-0.159	-0.100	0.121	0.326	0.655^*	0.634^*	-0.136
细根淀粉 Fine root starch	-0.083	0.055	0.310	0.079	0.029	0.117	-0.076	-0.129	0.128	-0.151	-0.021	0.188	0.001	0.097	0.091
茎淀粉 Stem starch	-0.179	-0.198	0.143	-0.090	-0.057	-0.029	-0.142	-0.192	0.220	-0.225	0.391	0.336	0.742^**	0.091	0.435	0.371
叶淀粉 Leaf starch	0.560	0.541	0.551	0.743^**	0.753^**	0.780^**	-0.646^*	0.107	0.615^*	-0.638^*	0.612^*	0.500	0.302	0.606^*	-0.071	0.060	0.163
粗根非结构性碳水化合物 Coarse root NSC	0.132	0.145	0.562	0.331	0.296	0.403	-0.173	-0.072	0.204	-0.201	0.658^*	0.699^*	0.728^*	0.096	0.926^**	0.064	0.502	0.187
细根非结构性碳水化合物 Fine root NSC	-0.023	0.045	0.481	0.190	0.161	0.264	-0.154	-0.213	-0.241	-0.229	0.140	0.521	0.193	0.225	0.313	0.936^**	0.443	0.231	0.305
茎非结构性碳水化合物 Stem NSC	-0.186	-0.186	0.252	-0.042	-0.011	0.038	-0.123	-0.255	0.227	-0.200	0.465	0.417	0.865^**	0.079	0.522	0.278	0.978^**	0.215	0.601	0.391
叶非结构性碳水化合物 Leaf NSC	0.648^*	0.587	0.517	0.778^**	0.817^**	0.816^**	-0.756^**	0.049	0.749^**	-0.758^**	0.637^*	0.512	0.246	0.786^**	-0.098	0.077	0.155	0.968^**	0.176	0.250	0.192

Table 1

Table 2

References 0

	曹帮华, 吴丽云, 宋爱云, 等. 滨海盐碱地刺槐(Robinia pseudoacacia) 混交林土壤水盐动态. 生态学报, 2008, 28 (3): 939- 945. doi: 10.3321/j.issn:1000-0933.2008.03.005
	Cao B H , Wu L Y , Song A Y , et al. The soil water and soil salt distribution in coastal saline-alkali area: a comparison of pure and mixed plantations. Acta Ecologica Sinica, 2008, 28 (3): 939- 945. doi: 10.3321/j.issn:1000-0933.2008.03.005
	陈春晓, 谢秀华, 王宇鹏, 等. 盐分和干旱对沙枣幼苗生理特性的影响. 生态学报, 2019, 39 (12): 4540- 4550.
	Chen C X , Xie X H , Wang Y P , et al. Effects of salt and drought on the physiological characteristics of Elaeagnus angustifolia L seedlings. Acta Ecologica Sinica, 2019, 39 (12): 4540- 4550.
	成方妍, 王传宽. 树种和组织对树干非结构性碳水化合物储量估测的影响. 林业科学, 2016, 52 (2): 1- 9.
	Cheng F Y , Wang C K . Impacts of tree species and tissue on estimation of nonstructural carbohydrates storage in trunk. Scientia Silvae Sinicae, 2016, 50 (2): 1- 9.
	杜建会, 邵佳怡, 李升发, 等. 树木非结构性碳水化合物含量多时空尺度变化特征及其影响因素进展. 应用生态学报, 2020, 31 (4): 1378- 1388.
	Du J H , Shao J Y , Li S F , et al. Non-structural carbohydrate content of trees and its influencing factors at multiple spatial-temporal scales: a view. Chinese Journal of Applied Ecology, 2020, 31 (4): 1378- 1388.
	冯建新, 熊德成, 史顺增, 等. 土壤增温对杉木幼苗细根生理生态性质的影响. 生态学报, 2017, 37 (1): 35- 43.
	Feng J X , Xiong D C , Shi S Z , et al. Effects of soil warming on the ecophysiological properties of the fine roots of Chinese fir (Cunninghamia lanceolata) seedlings. Acta Ecologica Sinica, 2017, 37 (1): 35- 43.
	李子英, 丛日春, 杨庆山, 等. 盐碱胁迫对柳树幼苗生长和渗透调节物质含量的影. 生态学报, 2017, 37 (24): 8511- 8517.
	Li Z Y , Cong R C , Yang Q S , et al. Effects of saline-alkali stress on growth and osmotic adjustment substances in willow seedlings. Acta Ecologica Sinica, 2017, 37 (24): 8511- 8517.
	刘正祥, 张华新, 杨升, 等. NaCl胁迫对沙枣幼苗生长和光合特性的影响. 林业科学, 2014, 50 (1): 32- 40.
	Liu Z X , Zhang H X , Yang S , et al. Effects of NaCl stress on growth and photosynthetic characteristics of Elaeagnus angustifolia seedlings. Scientia Silvae Sinicae, 2014, 50 (1): 32- 40.
	罗达, 史彦江, 宋锋惠, 等. 盐胁迫对平欧杂种榛幼苗生长、光合荧光特性及根系构型的影响. 应用生态学报, 2019, 30 (10): 3376- 3384.
	Luo D , Shi Y J , Song F H , et al. Effects of salt stress on growth, photosynthetic and fluorescence characteristics, and root architecture of Corylus heterophylla×C. avellan seedlings. Chinese Journal of Applied Ecology, 2019, 30 (10): 3376- 3384.
	孟凡娟, 王建中, 黄凤兰, 等. NaCl盐胁迫对两种刺槐叶肉细胞超微结构的影响. 北京林业大学学报, 2010, 32 (4): 97- 102.
	Meng F J , Wang J Z , Huang F L , et al. Ultrastructure of mesophyll cells in two Robinia pseudoacacia hybrids under NaCl stress. Journal of Beijing Forestry University, 2010, 32 (4): 97- 102.
	偶春, 胡欣, 姚侠妹, 等. 盐旱胁迫下侧柏幼苗的生理响应及水杨酸的调控作用. 干旱区资源与环境, 2019, 33 (8): 186- 193.
	Ou C , Hu X , Yao X M , et al. Physiological characteristics in Platycladus orientalis under salt and drought stress and regulated by SA. Journal of Arid Land Resources and Environment, 2019, 33 (8): 186- 193.
	潘庆民, 韩兴国, 白永飞, 等. 植物非结构性贮藏碳水化合物的生理生态学研究进展. 植物学通报, 2002, 19 (1): 30- 38. doi: 10.3969/j.issn.1674-3466.2002.01.004
	Pan Q M , Han X G , Bai Y F , et al. Advances in physiology and ecology studies on stored non-structure carbonhydrates in plants. Chinese Bulletin of Botany, 2002, 19 (1): 30- 38. doi: 10.3969/j.issn.1674-3466.2002.01.004
	史顺增, 熊德成, 冯建新, 等. 模拟氮沉降对杉木幼苗细根的生理生态影响. 生态学报, 2017, 37 (1): 74- 83.
	Shi S Z , Xiong D C , Feng J X , et al. Ecophysiological effects of simulated nitrogen deposition on fine roots of Chinese fir (Cunninghamia lanceolata) seedlings. Acta Ecologica Sinica, 2017, 37 (1): 74- 83.
	王树凤, 胡韵雪, 孙海菁, 等. 盐胁迫对2种栎树苗期生长和根系生长发育的影响. 生态学报, 2014, 34 (4): 1021- 1029.
	Wang S F , Hu Y X , Sun H J , et al. Effects of salt stress on growth and root development of two oak seedlings. Acta Ecologica Sinica, 2014, 34 (4): 1021- 1029.
	王晓雨, 王守乐, 唐杨, 等. 长白山阔叶红松林3个主要树种的非结构性碳储存特征. 应用生态学报, 2019, 30 (5): 1608- 1614.
	Wang X Y , Wang S L , Tang Y , et al. Characteristics of non-structural carbohydrate reserves of three dominant tree species in broadleaved Korean pine forest in Changbai Mountain, China. Chinese Journal of Applied Ecology, 2019, 30 (5): 1608- 1614.
	岳小红, 曹靖, 耿杰, 等. 盐分胁迫对啤酒大麦幼苗生长、离子平衡和根际pH变化的影响. 生态学报, 2018, 38 (20): 7373- 7380.
	Yue X H , Cao J , Geng J , et al. Effects of different types of salt stress on growth, ion balance and rhizosphere pH changes in beer barley seedlings. Acta Ecologica Sinica, 2018, 38 (20): 7373- 7380.
	张婷, 曹扬, 陈云明, 等. 生长季末期干旱胁迫对刺槐幼苗非结构性碳水化合物的影响. 水土保持学报, 2016, 30 (5): 297- 304.
	Zhang T , Cao Y , Chen Y M , et al. Effects of drought stress on non-structural carbohydrates of Robinia pseudoacacia saplings at the end of the growing season. Journal of Soil and Water Conservation, 2016, 30 (5): 297- 304.
	张晓晓, 慕德宇, 李红丽, 等. NaCl胁迫对不同无性系白榆生理生化特性的影响. 干旱区资源与环境, 2016, 30 (8): 188- 192.
	Zhang X X , Mu D Y , Li H L , et al. Effects of NaCl stress on physiological characteristics of Ulmus pumila L. clones. Journal of Arid Land Resources and Environment, 2016, 30 (8): 188- 192.
	张芸香, 王林, 田吉, 等. 盐碱胁迫对文冠果幼苗水力学特征和碳素分配的影响. 水土保持学报, 2019, 33 (6): 299- 304.
	Zhang Y X , Wang L , Tian J , et al. Effects of saline-alkali stress on hydraulic characteristic and carbon allocation in Xanthoceras sorbifolia seedling. Journal of Soil and Water Conservation, 2019, 33 (6): 299- 304.
	赵春桥, 李继伟, 范希峰, 等. 不同盐胁迫对柳枝稷生物量、品质和光合生理的影响. 生态学报, 2015, 35 (19): 6489- 6495.
	Zhao C Q , Li J W , Fan X F , et al. Effects of salt stress on biomass, quality, and photosynthetic physiology in Panicum virgatum. Acta Ecologica Sinica, 2015, 35 (19): 6489- 6495.
	周驰燕, 李国辉, 许轲, 等. 水稻茎鞘非结构性碳水化合物转运机理及栽培调控研究进展. 生命科学, 2021, 33 (1): 111- 120.
	Zhou C Y , Li G H , Xu K , et al. Advances in translocation mechanism and cultivation regulation of non-structural carbohydrate in rice stem and sheath. Chinese Bulletin of Life Sciences, 2021, 33 (1): 111- 120.
	Cimato A , Castelli S , Tattini M , et al. An ecophysiological analysis of salinity tolerance in olive. Environmental and Experimental Botany, 2010, 68, 214- 221. doi: 10.1016/j.envexpbot.2009.12.006
	Cui G C , Zhang Y , Zhang W J , et al. Response of carbon and nitrogen metabolism and secondary metabolites to drought stress and salt stress in plants. Journal of Plant Biology, 2019, 62 (4): 387- 399.
	Dietze M C , Sala A , Carbone M S , et al. Nonstructural carbon in woody plants. Annual Review of Plant Biology, 2014, 65, 667- 687. doi: 10.1146/annurev-arplant-050213-040054
	Hartmann H , Trumbore S . Understanding the roles of nonstructural carbohydrates in forest trees-from what we can measure to what we want to know. New Phytologist, 2016, 211, 386- 403.
	Koyro H W . Effect of salinity on growth, photosynthesis, water relations and solute composition of the potential cash crop halophyte Plantago coronopus L. Environmental and Experimental Botany, 2006, 56 (2): 136- 146.
	Li X B , Wan S Q , Kang Y H , et al. Chinese rose (Rosa chinensis) growth and ion accumulation under irrigation with waters of different salt contents. Agricultural Water Management, 2016, 163, 180- 189.
	Maggio A , Raimondi G , Martino A , et al. Salt stress response in tomato beyond the salinity tolerance threshold. Environmental and Experimental Botany, 2007, 59 (3): 276- 282.
	Mao P L , Zhang Y J , Cao B H , et al. Effects of salt stress on eco-physiological characteristics in Robinia pseudoacacia based on salt-soil rhizosphere. Science of the Total Environment, 2016, 568, 118- 123.
	McDowell N , Pockman W T , Allen C D , et al. Mechanisms of plant survival and mortality during drought: why do some plants survive while others succumb to drought?. New Phytologist, 2008, 178, 719- 739.
	O'Brien M J , Leuzinger S , Philipso C D , et al. Drought survival of tropical tree seedlings enhanced by non-structural carbohydrate levels. Nature Climate Change, 2014, 4 (8): 710- 714.
	Parihar P , Singh S , Singh R , et al. Effect of salinity stress on plants and its tolerance strategies: a review. Environmental Science and Pollution Research, 2015, 22 (6): 4056- 4075.
	Pushpalatha G , Subrahmanyam D , Sreenu K , et al. Effect of salt stress on seedling growth and antioxidant enzymes in two contrasting rice introgression lines. Indian Journal of Plant Physiology, 2013, 18 (4): 360- 366.
	Vicente O , Boscaiu M , Naranjo M A , et al. Responses to salt stress in the halophyte Plantago crassifolia (Plantaginaceae). Journal of Arid Environments, 2003, 58 (4): 463- 481.
	Yi X P , Sun Y , Yang Q , et al. Quantitative proteomics of Sesuvium portulacastrum leaves revealed that ion transportation by V-ATPase and sugar accumulation in chloroplast played crucial roles in halophyte salt tolerance. Journal of Proteomics, 2014, 99 (1): 84- 100.
	Zhang H Y , Wang C K , Wang X C . Spatial variations in non-structural carbohydrates in stems of twelve temperate tree species. Trees, 2014, 28 (1): 77- 89.
	Zhang T , Cao Y , Chen Y M , et al. Non-structural carbohydrate dynamics in Robinia pseudoacacia saplings under three levels of continuous drought stress. Trees, 2015, 29 (6): 1837- 1849.
	Zheng M , Lai L , Jiang L , et al. Moderate water supply and partial sand burial increase relative growth rate of two Artemisia species in an inland sandy land. Journal of Arid Environments, 2012, 85, 105- 113.

[1]	Bai Yu, Pang Yong, Xia Xiaoyun, Jia Weiwei. 3-PG Model Parameterization Using Destructive Sampling Data of Larix olgensis [J]. Scientia Silvae Sinicae, 2022, 58(1): 98-110.
[2]	Zhang Mengjiao, Shi Shuaiying, Liu Zheng, Zhu Xueling, Fan Kun, Shi Guoan. Effects of Different Thinning Intensity on Growth, Grain Yield, and Quality of Tree Penoy'Fengdan’ [J]. Scientia Silvae Sinicae, 2022, 58(1): 162-174.
[3]	Zijing Zhou,Fuhua Fan,Xianwen Shang,Huijuan Qin,Conghui Wang,Guijie Ding,Jianhui Tan. Effects of Exogenous IAA on Stem Secondary Growth of Pinus massoniana Seedlings [J]. Scientia Silvae Sinicae, 2021, 57(9): 42-51.
[4]	Lele Lu,Zhen Wang,Xiongqing Zhang,Jianguo Zhang. Individual Tree Diameter Growth Model of Chinese Fir Plantations Using Bayesian Model Averaging and Stepwise Regression Approaches [J]. Scientia Silvae Sinicae, 2021, 57(9): 87-97.
[5]	Haibo Chen,Li Guo,Zhen Zhang,Xiangbo Kong,Sufang Zhang,Fu Liu. Effects of Poplar Inter-Species Mixed Plantations on Growth Characteristics and Resistance to Defoliators [J]. Scientia Silvae Sinicae, 2021, 57(8): 133-140.
[6]	Weiwei Zhang,Zhong Zhao,Jinliang Liu,Ping Deng. Population Dynamics and Seedling Characteristics of Three Community Types of Quercus acutissima in Qiaoshan Forest Region [J]. Scientia Silvae Sinicae, 2021, 57(7): 1-10.
[7]	Min Chen,Huayan Lai,Shanshan Zheng,Ming Li,Xiangqing Ma,Pengfei Wu. Effects of Exogenous Ethylene on Growth and Phosphorus Use Efficiency of Chinese Fir Seedlings under Phosphorus Stress [J]. Scientia Silvae Sinicae, 2021, 57(7): 43-50.
[8]	Miaomiao Wang,Yong Liu,Guolei Li,Yuxin Peng,Chunhe Liu,Jiansong Zhao,Shuhong Wang,Biao Dong,Changwei Wang,Ruirui Zhao. Effects of Autum Fertilization on Quality, Field Performance and Nutrient Resorption of Populus tomentosa Seedling [J]. Scientia Silvae Sinicae, 2021, 57(7): 51-60.
[9]	Weiping Liu,Wei Song,Chao Gao,Yandong Zhao. Construction of Evaluation Model of Poplar Growth Status Based on Stem Moisture of Standing Trees [J]. Scientia Silvae Sinicae, 2021, 57(5): 43-52.
[10]	Bai Ouyang,Zhu Li,Jiali Jiang. Hygroscopicity and Swelling Behavior of Catalpa bungei Earlywood and Latewood [J]. Scientia Silvae Sinicae, 2021, 57(5): 176-183.
[11]	Bin Wang,Pengtao Yu,Yipeng Yu,Lei Zhang,Yanhui Wang,Yanfang Wan,Wenjuan Yang,Shunli Wang,Xiande Liu. Response of Radial Growth of Qinghai Spruce at Different Ages to Climate Change in Qilian Mountains, Northwestern China [J]. Scientia Silvae Sinicae, 2021, 57(3): 1-8.
[12]	Hao Zang,Hongsheng Liu,Jincheng Huang,Zudong Zhang,Xunzhi Ouyang,Jinkui Ning. Effects of Competition, Climate Factors and Their Interactions on Diameter Growth for Chinese Fir Plantations [J]. Scientia Silvae Sinicae, 2021, 57(3): 39-50.
[13]	Xianglin Tian,Ziyan Liao,Shuaichao Sun,Hailian Xue,Bin Wang,Tianjian Cao. Impacts of Multiple Source Data on Forest Forecasting and Uncertainty Propagation [J]. Scientia Silvae Sinicae, 2021, 57(3): 51-66.
[14]	Minghui Sun,Yong Liu,Changwei Wang,Guolei Li,Miaomiao Wang,Xiehai Song,Xiaochao Chang,Fangfang Wan,Huaishan Song. Effects of Density and Row Spacing on the Quality of Populus tomentosa Seedling [J]. Scientia Silvae Sinicae, 2021, 57(3): 152-160.
[15]	Wenjing Shen,Li Zhang,Laipan Liu,Zhixiang Fang,Biao Liu. Effects of cry1Ac Transgenic Populus nigra on Growth, Development, and Reproduction of the Earthworm Eisenia foetida [J]. Scientia Silvae Sinicae, 2021, 57(12): 92-98.

Dynamic Responses of Non-Structural Carbohydrates in Robinia pseudoacacia Seedlings to NaCl Stress

RichHTML

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

Figures/Tables 8

References 0

Related Articles 15

Recommended Articles

Metrics

Comments

指标 Index	第1主成分 The first principal component	第2主成分 The second principal component	第3主成分 The third principal component	第4主成分 The fourth principal component	第5主成分 The fifth principal component
叶生物量Leaf biomass	0.95	0.21	-0.08	0.00	0.11
根生物量比RMR	-0.95	0.12	-0.17	-0.04	-0.18
根冠比R/S	-0.94	0.11	-0.23	-0.11	-0.14
叶生物量比LMR	0.91	-0.07	0.24	0.07	-0.16
茎生物量Stem biomass	0.89	0.31	-0.15	0.06	0.25
叶非结构性碳水化合物Leaf NSC	0.89	0.16	0.04	0.06	-0.22
总生物量Total biomass	0.89	0.41	-0.12	0.09	0.10
叶可溶性糖Leaf soluble sugar	0.86	-0.08	0.05	0.09	-0.26
相对地径生长速率RGR_D	0.85	0.01	-0.15	-0.07	0.43
相对高生长速率RGR_H	0.80	0.12	-0.24	0.04	0.43
叶淀粉Leaf starch	0.80	0.24	0.03	0.04	-0.18
粗根可溶性糖Coarse root soluble sugar	0.73	0.38	0.43	-0.12	0.21
粗根淀粉Coarse root starch	-0.19	0.84	0.38	0.05	0.08
粗根非结构性碳水化合物Coarse root NSC	0.14	0.82	0.48	-0.00	0.15
根生物量Root biomass	0.34	0.79	-0.10	0.29	-0.22
细根可溶性糖Fine root soluble sugar	0.31	0.68	0.23	0.18	-0.35
茎淀粉Stem starch	0.02	0.12	0.93	0.27	-0.07
茎非结构性碳水化合物Stem NSC	0.04	0.26	0.92	0.16	-0.13
茎可溶性糖Stem soluble sugar	0.07	0.56	0.73	-0.12	-0.24
细根淀粉Fine root starch	0.03	0.02	0.12	0.99	0.00
细根非结构性质碳水化合物Fine root NSC	0.14	0.26	0.19	0.92	-0.12
茎生物量比SMR	0.14	-0.12	-0.15	-0.09	0.86
特征值Eigenvalue variance	9.47	3.52	3.22	2.13	1.77
贡献率Contribution rate (%)	43.05	15.99	14.65	9.69	8.03
累积贡献率Accumulated contribution rate (%)	43.05	59.04	73.69	83.38	91.41