Response of module biomass allocation of Agropyron mongolicum var. mongolicum to soil types

doi:10.7522/j.issn.1000-694X.2022.00078

Journal of Desert Research ›› 2023, Vol. 43 ›› Issue (2): 74-84.DOI: 10.7522/j.issn.1000-694X.2022.00078

Response of module biomass allocation of Agropyron mongolicum var. mongolicum to soil types

Peiyuan Wang¹^,²(), Haotian Yang³, Xue Zhang³, Bingqing Liu¹^,², Yunfei Li³, Qi Jiang⁴, Zhanjun Wang⁴, Xudong Wu⁴, Lichao Liu¹^,³()

^1.School of Ecology and Environment /, Ningxia University，Yinchuan 750021，China
^2.MOE Key Laboratory of Restoration and Reconstruction of Degraded Ecosystems in Northwestern China, Ningxia University，Yinchuan 750021，China
^3.Shapotou Desert Research and Experiment Station，Northwest Institute of Eco-Environment and Resources，Chinese Academy of Sciences，Lanzhou 730000，China
^4.Institute of Forest and Grass Land Ecology，Ningxia Academy of Agriculture and Forestry Sciences，Yinchuan 750021，China

Received:2022-05-15 Revised:2022-08-01 Online:2023-03-20 Published:2023-04-12
Contact: Lichao Liu

Abstract

Abstract:

Plants respond to and adapt to environmental changes by adjusting biomass allocation of various organs. Biomass allocation represents plant growth strategies and the functional trade-offs between components. In this study， biomass and allocation characteristics of each component in different types of soils were compared and analyzed， as well as allometric relationship， to explore the survival strategy of Agropyron mongolicum var. mongolicum. The results showed that there were significant differences in the biomass of each component among sierozem soils， dark loessial soils and aeolian soils， which showed stem > root > leaf > inflorescence； and the biomass allocation pattern of components was similar， which showed storage module > vegetation module > reproductive module. Different soil types had no significant effect on the total biomass， but significantly affected the biomass allocation ratio of most module biomass， such as， stem， root， inflorescence， vegetation， storage and reproductive module of A. mongolicum var. mongolicum. The vegetation module of A. mongolicum var. mongolicum in aeolian soils was significantly lower than that in indark loessial soils and sierozem soils， while the storage module was significantly higher than that in dark loessial soils and sierozem soils. The reproductive module ratio of dark loessial soils and aeolian soils were significantly higher than that of sierozem soils. Soil pH and electrical conductivity were the main factors affecting root-shoot ratio， biomass ratio of storage/vegetation， reproductive/vegetation and reproductive/storage of A. mongolicum var. mongolicum； available potassium， pH and electrical conductivity were the main factors affecting the biomass ratio of leaf/stem， leaf/root， leaf/inflorescence， root/inflorescence， root/stem and stem/inflorescence. The relationship among module biomass or between plant height and module biomass are mainly characterized by allometric relationship which was different among different soil types.

Key words: modular biomass, allocation strategy, desert steppe, allometric relationship

CLC Number:

Q416

Peiyuan Wang, Haotian Yang, Xue Zhang, Bingqing Liu, Yunfei Li, Qi Jiang, Zhanjun Wang, Xudong Wu, Lichao Liu. Response of module biomass allocation of Agropyron mongolicum var. mongolicum to soil types[J]. Journal of Desert Research, 2023, 43(2): 74-84.

Figures/Tables 8

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性状	土壤类型
性状	灰钙土	黑垆土	风沙土
叶/茎	0.13±0.03^a	0.08±0.01^a	0.11±0.02^a
叶/根	0.39±0.16^a	0.36±0.07^a	0.29±0.10^a
叶/穗	3.97±1.03^a	1.01±0.14^b	0.90±0.08^b
根/穗	15.65±1.49^a	5.83±0.67^c	12.29±1.33^b
根/茎	0.65±0.10^b	0.39±0.05^c	1.37±0.19^a
茎/穗	36.36±1.21^a	12.39±1.45^b	10.83±1.91^b
繁殖构件/营养构件	0.05±0.01^c	0.09±0.01^b	0.12±0.01^a
贮藏构件/营养构件	0.57±0.04^b	0.37±0.03^c	1.22±0.12^a
繁殖构件/贮藏构件	0.17±0.03^b	0.47±0.09^a	0.40±0.09^a
根冠比	0.54±0.05^b	0.34±0.04^c	1.08±0.16^a

性状	土壤类型
性状	灰钙土	黑垆土	风沙土
叶/茎	0.13±0.03^a	0.08±0.01^a	0.11±0.02^a
叶/根	0.39±0.16^a	0.36±0.07^a	0.29±0.10^a
叶/穗	3.97±1.03^a	1.01±0.14^b	0.90±0.08^b
根/穗	15.65±1.49^a	5.83±0.67^c	12.29±1.33^b
根/茎	0.65±0.10^b	0.39±0.05^c	1.37±0.19^a
茎/穗	36.36±1.21^a	12.39±1.45^b	10.83±1.91^b
繁殖构件/营养构件	0.05±0.01^c	0.09±0.01^b	0.12±0.01^a
贮藏构件/营养构件	0.57±0.04^b	0.37±0.03^c	1.22±0.12^a
繁殖构件/贮藏构件	0.17±0.03^b	0.47±0.09^a	0.40±0.09^a
根冠比	0.54±0.05^b	0.34±0.04^c	1.08±0.16^a

土壤类型	构件	样本数量	R²	斜率均值 [下限，上限]	截距 lgb	F	P（H₀=1)
灰钙土	叶-茎	20	0.29	0.47[0.32, 0.56]	-0.86	5.52	0.020
	叶-根	20	0.39	0.40[0.28, 0.62]	-0.80	11.71	0.012
	叶-穗	20	0.23	0.29[0.18, 0.42]	-0.40	4.72	0.042
	叶-株高	20	0.25	0.56[0.48, 0.78]	-1.62	4.97	0.013
	茎-根	20	0.49	0.56[0.42, 0.71]	0.33	19.28	0.006
	茎-穗	20	0.32	0.31[0.20, 0.46]	0.71	9.65	0.023
	茎-株高	20	0.59	1.46[1.15, 1.89]	-2.04	28.08	0.002
	根-穗	20	0.26	0.49[0.36, 0.62]	0.55	7.343	0.031
	根-株高	20	0.26	0.92[0.78, 1.65]	-1.39	5.52	0.076
黑垆土	叶-茎	20	0.74	0.83[0.73, 1.12]	-1.05	55.77	0.011
	叶-根	20	0.53	0.45[0.32, 0.62]	-0.68	22.21	0.023
	叶-穗	20	0.65	0.60[0.47, 0.86]	-0.35	36.22	0.012
	叶-株高	20	0.21	1.99[1.82, 2.62]	-4.10	6.12	0.000
	茎-根	20	0.69	0.53[0.41, 0.65]	0.45	42.62	0.022
	茎-穗	20	0.79	0.68[0.53, 1.02]	0.83	70.65	0.031
	茎-株高	20	0.34	2.53[2.34, 2.98]	-3.91	10.84	0.000
	根-穗	20	0.36	0.75[0.62, 0.92]	0.35	11.44	0.012
	根-株高	20	0.25	2.93[2.45, 3.65]	-5.17	5.56	0.000
风沙土	叶-茎	20	0.61	0.95[0.76, 1.35]	-0.99	25.64	0.076
	叶-根	20	0.43	0.63[0.52, 0.98]	-0.75	12.85	0.031
	叶-穗	20	0.83	1.05[0.89, 1.65]	-0.04	93.86	0.062
	叶-株高	20	0.49	2.48[2.12, 2.89]	-4.91	6.32	0.046
	茎-根	20	0.55	0.55[0.42, 0.86]	-0.23	11.26	0.023
	茎-穗	20	0.58	1.71[1.36, 1.98]	-2.77	14.56	0.002
	茎-株高	20	0.24	1.99[1.52, 2.32]	-2.96	5.62	0.000
	根-穗	20	0.24	0.64[0.46, 0.79]	0.49	4.98	0.023
	根-株高	20	0.23	1.81[1.42, 2.02]	-0.01	5.26	0.003

土壤类型	构件	样本数量	R²	斜率均值 [下限，上限]	截距 lgb	F	P（H₀=1)
灰钙土	叶-茎	20	0.29	0.47[0.32, 0.56]	-0.86	5.52	0.020
	叶-根	20	0.39	0.40[0.28, 0.62]	-0.80	11.71	0.012
	叶-穗	20	0.23	0.29[0.18, 0.42]	-0.40	4.72	0.042
	叶-株高	20	0.25	0.56[0.48, 0.78]	-1.62	4.97	0.013
	茎-根	20	0.49	0.56[0.42, 0.71]	0.33	19.28	0.006
	茎-穗	20	0.32	0.31[0.20, 0.46]	0.71	9.65	0.023
	茎-株高	20	0.59	1.46[1.15, 1.89]	-2.04	28.08	0.002
	根-穗	20	0.26	0.49[0.36, 0.62]	0.55	7.343	0.031
	根-株高	20	0.26	0.92[0.78, 1.65]	-1.39	5.52	0.076
黑垆土	叶-茎	20	0.74	0.83[0.73, 1.12]	-1.05	55.77	0.011
	叶-根	20	0.53	0.45[0.32, 0.62]	-0.68	22.21	0.023
	叶-穗	20	0.65	0.60[0.47, 0.86]	-0.35	36.22	0.012
	叶-株高	20	0.21	1.99[1.82, 2.62]	-4.10	6.12	0.000
	茎-根	20	0.69	0.53[0.41, 0.65]	0.45	42.62	0.022
	茎-穗	20	0.79	0.68[0.53, 1.02]	0.83	70.65	0.031
	茎-株高	20	0.34	2.53[2.34, 2.98]	-3.91	10.84	0.000
	根-穗	20	0.36	0.75[0.62, 0.92]	0.35	11.44	0.012
	根-株高	20	0.25	2.93[2.45, 3.65]	-5.17	5.56	0.000
风沙土	叶-茎	20	0.61	0.95[0.76, 1.35]	-0.99	25.64	0.076
	叶-根	20	0.43	0.63[0.52, 0.98]	-0.75	12.85	0.031
	叶-穗	20	0.83	1.05[0.89, 1.65]	-0.04	93.86	0.062
	叶-株高	20	0.49	2.48[2.12, 2.89]	-4.91	6.32	0.046
	茎-根	20	0.55	0.55[0.42, 0.86]	-0.23	11.26	0.023
	茎-穗	20	0.58	1.71[1.36, 1.98]	-2.77	14.56	0.002
	茎-株高	20	0.24	1.99[1.52, 2.32]	-2.96	5.62	0.000
	根-穗	20	0.24	0.64[0.46, 0.79]	0.49	4.98	0.023
	根-株高	20	0.23	1.81[1.42, 2.02]	-0.01	5.26	0.003

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Response of module biomass allocation of Agropyron mongolicum var. mongolicum to soil types

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