Biomass distribution and carbon sink function of Nitraria tangutorum nebkhas in different climate zones

doi:10.7522/j.issn.1000-694X.2025.00139

Journal of Desert Research ›› 2026, Vol. 46 ›› Issue (2): 86-94.DOI: 10.7522/j.issn.1000-694X.2025.00139

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Biomass distribution and carbon sink function of Nitraria tangutorum nebkhas in different climate zones

Xiaofeng Zuo¹^,²^,³(), Yajuan Wei¹^,⁴(), Hejun Zuo¹^,²^,³, Haibing Wang¹^,²^,³, Min Yan¹^,²^,³, Xinglong Xie⁵

^1.College of Desert Control Science and Engineering /, Inner Mongolia Agricultural University，Hohhot 010018，China
^2.Key Laboratory of Aeolian Sand Physics and Sand Control Engineering in Inner Mongolia /, Inner Mongolia Agricultural University，Hohhot 010018，China
^3.Inner Mongolia Hangjin Desert Ecological Position Research Station, Inner Mongolia Agricultural University，Hohhot 010018，China
^4.College of Ecology and Environment，Baotou Teachers' College，Baotou 014030，Inner Mongolia，China
^5.Department of Social and Ecological Civilization，Party School of Yunnan Committee of Communist Party of China，Kunming 650111，China

Received:2025-06-11 Revised:2025-08-18 Online:2026-03-20 Published:2025-11-26
Contact: Yajuan Wei

Abstract

Abstract:

We aim to clarify the biomass distribution， carbon sink function， and response mechanisms to environmental factors of Nitraria tangutorum nebkhas with different climates， thereby facilitating the assessment of carbon sink function and adaptive zoning management in desert ecosystems. This study focused on Nitraria tangutorum nebkhas in the Minqin desert area and the Hangjin Banner desert area. Through quantitative analysis of their morphological parameters， biomass and carbon storage characteristics， and correlation analysis between indicators， we aim to elucidate the key factors influencing biomass and carbon storage of Nitraria tangutorum nebkhas with different climates. The results showed that：（1）The morphological characteristics， plant features and biomass of Nitraria tangutorum nebkhas in the desert area of Hangjin Banner were significantly higher than those in the Minqin desert area （P<0.05）. （2）The soil moisture content， soil organic carbon and carbon storage of Nitraria tangutorum nebkhas in the desert area of Hangjin Banner are 8.11 times， 2.45 times， and 8.53 times higher than those in the Minqin desert area， respectively （P<0.05）， indicating that Nitraria tangutorum nebkhas in the desert area of Hangjinqi have much higher carbon storage than those in the Minqin desert area. （3）The optimal fitting models for the height， bottom area， and volume of Nitraria tangutorum nebkhas with different component biomass were linear and exponential functions， with R² values ranging from 0.42 to 0.93. The optimal fitting curves of soil carbon content and carbon storage with different component biomass were linear functions， with R² values ranging from 0.86 to 0.95. （4） Redundancy analysis revealed that soil organic carbon （SOC） and sand dune height （H） were key factors affecting the biomass and soil carbon storage of Nitraria tangutorum shrubs in the Minqin desert area； The volume （V） of Nitraria tangutorum nebkhas was a key factor affecting the biomass and soil carbon storage of Nitraria tangutorum shrubs in the desert area of Hangjin Banner. The results of this study indicated that Nitraria tangutorum shrubs played an important role in carbon sequestration in arid regions， and their carbon accumulation capacity is significantly influenced by environmental factors in climatic zones. In the future， ecological restoration and management strategies should be combined with regional climate characteristics to enhance the carbon sink potential of desert ecosystems.

Key words: Nitraria tangutorum nebkhas, biomass, carbon storage, redundancy analysis, driving factors, climate zone

CLC Number:

P941.73

Xiaofeng Zuo, Yajuan Wei, Hejun Zuo, Haibing Wang, Min Yan, Xinglong Xie. Biomass distribution and carbon sink function of Nitraria tangutorum nebkhas in different climate zones[J]. Journal of Desert Research, 2026, 46(2): 86-94.

Figures/Tables 7

References 34

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气候区	高度/m	底面积/m²	体积/m³	株高/m	盖度/%	密度/（个·km^-2）
民勤荒漠区	0.52±0.21^b	5.45±1.63^b	4.61±3.51^b	23.35±7.25^b	33.27±14.12^b	12 400±3 100
杭锦旗荒漠区	1.04±0.28^a	28.09±12.40^a	11.02±7.39^a	44.89±9.99^a	45.00±13.33^a	14 700±2 600

气候区	高度/m	底面积/m²	体积/m³	株高/m	盖度/%	密度/（个·km^-2）
民勤荒漠区	0.52±0.21^b	5.45±1.63^b	4.61±3.51^b	23.35±7.25^b	33.27±14.12^b	12 400±3 100
杭锦旗荒漠区	1.04±0.28^a	28.09±12.40^a	11.02±7.39^a	44.89±9.99^a	45.00±13.33^a	14 700±2 600

气候区	生物量/kg			根冠比	碳含量/(g·kg^-1)
气候区	地上生物量	地下生物量	总生物量	根冠比	叶片碳含量	枝茎碳含量	根系碳含量
民勤荒漠区	1.92±1.16^b	4.62±3.26^b	6.55±4.18^b	2.33±0.84^a	359.30±4.57^b	404.31±39.00^b	404.84±24.05^b
杭锦旗荒漠区	9.13±2.79^a	23.18±11.78^a	32.31±14.44^a	2.39±0.58^a	374.20±1.24^a	476.28±19.42^a	467.26±8.07^a

气候区	生物量/kg			根冠比	碳含量/(g·kg^-1)
气候区	地上生物量	地下生物量	总生物量	根冠比	叶片碳含量	枝茎碳含量	根系碳含量
民勤荒漠区	1.92±1.16^b	4.62±3.26^b	6.55±4.18^b	2.33±0.84^a	359.30±4.57^b	404.31±39.00^b	404.84±24.05^b
杭锦旗荒漠区	9.13±2.79^a	23.18±11.78^a	32.31±14.44^a	2.39±0.58^a	374.20±1.24^a	476.28±19.42^a	467.26±8.07^a

气候区	土壤含水量/%	土壤容重/(g·cm^-3)	土壤有机碳含量/kg	土壤碳储量/kg
民勤荒漠区	0.57±0.25^b	1.40±0.02^a	1.63±0.85^b	6.92±2.55^b
杭锦旗荒漠区	4.62±0.52^a	1.45±0.04^a	4.00±1.23^a	59.04±22.18^a

Biomass distribution and carbon sink function of Nitraria tangutorum nebkhas in different climate zones

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Figures/Tables 7

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民勤荒漠区						杭锦旗荒漠区
影响因素	解释度/%	贡献率/%	F	P	排序	影响因素	解释度/%	贡献率/%	F	P	排序
SOC	72.9	87.0	59.9	0.002	1	V	88.5	93.1	123	0.002	1
H	8.3	5.8	5.0	0.034	2	H	1.4	1.5	2.1	0.16	2
C	5.8	3.1	3.0	0.08	3	SOC	1.2	1.3	1.9	0.156	3
SM	1.1	1.2	1.2	0.29	4	S	0.7	0.8	1.2	0.308	4
BD	0.9	1.0	0.9	0.39	5	BD	0.7	0.7	1.1	0.36	5
V	0.8	0.8	0.8	0.432	6	C	0.4	0.4	0.6	0.488	6
h	0.4	0.5	0.5	0.576	7	h	0.8	0.8	1.2	0.308	7
R/S	0.2	0.3	0.2	0.742	8	R/S	0.5	0.5	0.8	0.4	8
S	0.4	0.4	0.3	0.638	9	SM	0.9	0.9	1.5	0.248	9

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