
浏览全部资源
扫码关注微信
1.青海大学 畜牧兽医科学院 青海省青藏高原优良牧草种质资源;利用重点实验室, 青海 西宁 810016
2.青海大学 省部共建三江源生态与高原农牧业;国家重点实验室, 青海 西宁 810016
3.中国农业科学院 草原研究所, 内蒙古 呼和浩特 010018
Received:15 May 2025,
Revised:2025-08-20,
Published:10 December 2025
移动端阅览
李纪昀, 王倩, 何克燕, 等.燕麦生物沙障对青海湖流域沙地土壤碳氮磷含量的影响[J].水土保持通报,2025,45(6):23-32.
Li Jiyun, Wang Qian, He Keyan, et al. Effects of Avena sativa biological sand barriers on soil carbon, nitrogen, and phosphorus contents in alpine sandy land of Qinghai Lake basin [J]. Bulletin of Soil and Water Conservation,2025,45(6):23-32.
李纪昀, 王倩, 何克燕, 等.燕麦生物沙障对青海湖流域沙地土壤碳氮磷含量的影响[J].水土保持通报,2025,45(6):23-32. DOI: 10.13961/j.cnki.stbctb.2025.06.025. CSTR: 32312.14.stbctb.2025.06.025.
Li Jiyun, Wang Qian, He Keyan, et al. Effects of Avena sativa biological sand barriers on soil carbon, nitrogen, and phosphorus contents in alpine sandy land of Qinghai Lake basin [J]. Bulletin of Soil and Water Conservation,2025,45(6):23-32. DOI: 10.13961/j.cnki.stbctb.2025.06.025. CSTR: 32312.14.stbctb.2025.06.025.
目的
2
评估燕麦(
Avena sativa
)生物沙障在高寒沙地修复中的土壤改良潜力,明确其在2 a种植期内对土壤碳氮磷含量及其生态化学计量特征的调控机制,为高寒沙化草地的生态恢复提供理论依据和实践指导。
方法
2
以青海湖流域典型高寒流动沙丘为研究对象,设置燕麦生物沙障样带,在2 a连续生长周期内选择播种前(T
1
)、首个生长季末(T
2
)、第二年生长季初(T
3
)及第二年生长季末(T
4
),共4个关键时期开展土壤采样,测定不同生长阶段土壤碳、氮、磷含量及其生态化学计量特征的变化。
结果
2
燕麦生物沙障可以显著提升表层土壤(0—20 cm)的有机碳(SOC)和全氮(TN)含量,全磷(TP)含量提升较为缓慢,T
4
时期表层土壤SOC和TN含量较T
1
时期分别提高18.2%和29.3%,深层土壤(20—40 cm)分别提高56.8%和27.0%。表层土壤T
4
时期速效氮(AN)和速效磷(AP)含量分别较T
1
时期提高19.8%和72.7%,土壤pH值下降15.0%。随着种植时间增加,C/N和C/P呈先增加后降低的趋势,而N/P呈逐渐上升的趋势。SOC,TN,TP和pH值是影响计量特征的主要因子。
结论
2
燕麦生物沙障可有效提升土壤有机质水平与养分供给,促进了元素的循环。同时优化了C,N,P生态化学计量结构,缓解了元素限制问题,增强土壤生态功能,且修复效益在2 a内随种植时间延长而逐步积累,具备长期促进土壤质量恢复的潜力。
Objective
2
The soil improvement potential of oat (
Avena sativa
) biological sand barriers in the restoration of alpine sandy land were evaluated in order to clarify their regulatory mechanisms on soil carbon (C), nitrogen (N), and phosphorus (P) nutrients and their ecological stoichiometric characteristics during a two-year planting period, and provide theoretical and practical guidance for the ecological restoration of desertified grassland in alpine regions.
Methods
2
Typical alpine mobile sand dunes in Qinghai Lake basin were selected as the study area, where oat biological sand barrier plots were established. Soil samples were collected at four key time points over a two-year continuous growing period: before sowing (T
1
), at the end of the first growing season (T
2
), at the beginn
ing of the second growing season (T
3
), and at the end of the second growing season (T
4
). Soil carbon, nitrogen, phosphorus contents and their ecological stoichiometric characteristics were determined at different growth stages.
Results
2
The oat biological sand barriers significantly increased the soil organic carbon (SOC) and total nitrogen (TN) contents in the surface soil (0—20 cm), while the increase in total phosphorus (TP) was relatively slow. In the T
4
period, the SOC and TN in the surface soil increased by approximately 18.2% and 29.3%, respectively, compared to the T
1
period, and the SOC and TN in the deep soil (20—40 cm) increased by 56.8% and 27.0%, respectively. The available nitrogen (AN) and available phosphorus (AP) contents in the surface soil increased by 19.8% and 72.7%, respectively, in T
4
compared to T
1
, while soil pH value decreased by approximately 15.0%. With increasing planting duration, the C/N and C/P ratios showed a trend of first increasing and then decreasing, while the N/P ratio showed a gradually increasing trend. Mantel test results indicated that SOC, TN, TP, and pH value were the main factors influencing the stoichiometric characteristics.
Conclusion
2
The oat biological sand barriers effectively enhance soil organic matter level and nutrient supply, promoting the cycling of elements. Additionally, they optimize the ecological stoichiometric structure of C, N, and P, alleviate nutrient limitations, and enhance soil ecological functions. Furthermore, the restoration benefits accumulate progressively over the two-year planting period, demonstrating potential for long-term soil quality restoration.
Xu Yudan , Dong Shikui , Shen Hao , et al . Degradation significantly decreased the ecosystem multifunctionality of three alpine grasslands:Evidences from a large-scale survey on the Qinghai-Tibetan Plateau [J]. Journal of Mountain Science , 2021 , 18 ( 2 ): 357 - 366 .
苟小林 , 刘文辉 , 陈有军 , 等 . 植物沙障不同种植模式对川西北沙地的恢复效应 [J]. 草业学报 , 2019 , 28 ( 6 ): 33 - 44 .
Gou Xiaolin , Liu Wenhui , Chen Youjun , et al . Effect of different vegetation planting patterns in restoration of degraded sandy land in northwest Sichuan [J]. Acta Prataculturae Sinica , 2019 , 28 ( 6 ): 33 - 44 .
崔腾宇 , 赵君 , 管梦鸾 , 等 . 基于生态评价的生态保护修复分区研究:以青海湖流域为例 [J]. 环境工程技术学报 , 2024 , 14 ( 2 ): 592 - 600 .
Cui Tengyu , Zhao Jun , Guan Mengluan , et al . Study on zoning of ecological protection and restoration based on ecological assessment:Taking Qinghai Lake basin as an example [J]. Journal of Environmental Engineering Technology , 2024 , 14 ( 2 ): 592 - 600 .
Tian Lihua , Yang Wen , Ji-Shi A , et al . Artificial reseeding improves multiple ecosystem functions in an alpine sandy meadow of the eastern Tibetan Plateau [J]. Land Degradation & Development , 2023 , 34 ( 7 ): 2052 - 2060 .
郑玉琪 , 严佳玥 , 李博元 , 等 . 新疆针茅传播体形态及埋深对种子萌发出苗的影响 [J]. 草业学报 , 2025 , 34 ( 5 ): 64 - 73 .
Zheng Yuqi , Yan Jiayue , Li Boyuan , et al . Dispersal unit morphology, and effects of burial depth on seed germination and emergence of Stipa sareptana [J]. Acta Prataculturae Sinica , 2025 , 34 ( 5 ): 64 - 73 .
贺丽 , 陈德朝 , 吴科君 , 等 . 川西北高寒区流动沙地植被恢复过程中物种组成及空间格局变化 [J]. 四川林业科技 , 2022 , 43 ( 6 ): 87 - 93 .
He Li , Chen Dechao , Wu Kejun , et al . Dynamics of species composition and spatial distribution pattern during vegetation restoration processes on mobile sandy land in alpine region of northwest Sichuan [J]. Journal of Sichuan Forestry Science and Technology , 2022 , 43 ( 6 ): 87 - 93 .
Li Yiran , Hu Sijia , Lang Shanxin , et al . Soil quality and ecological benefits assessment of alpine desertified grassland following different ecological restoration measures [J]. Frontiers in Plant Science , 2023 , 14 : 1283457 .
Zhong Linfei , Feng Xiangyan , Zhao Wenzhi . Fixing active sand dune by native grasses in the desert of Northwest China [J]. Ecological Processes , 2024 , 13 ( 1 ): 77 .
陈冬冬 , 田丽慧 , 张登山 , 等 . 青藏高原土地沙化研究进展 [J]. 青海农林科技 , 2023 ( 4 ): 42 - 46 .
Chen Dongdong , Tian Lihui , Zhang Dengshan , et al . Research progress of land desertification in Qinghai-Tibet Plateau [J]. Science and Technology of Qinghai Agriculture and Forestry , 2023 ( 4 ): 42 - 46 .
周青平 , 胡晓炜 , 汪辉 , 等 . 燕麦在维护国家粮食安全中的重要作用 [J]. 草业学报 , 2024 , 33 ( 10 ): 171 - 182 .
Zhou Qingping , Hu Xiaowei , Wang Hui , et al . The important role of oat in reinforcing the foundation of food security [J]. Acta Prataculturae Sinica , 2024 , 33 ( 10 ): 171 - 182 .
郎山鑫 , 胡嗣佳 , 李梦 , 等 . 生态恢复措施提升高寒沙化草地的固碳效应 [J]. 环境科学与技术 , 2021 , 44 ( 4 ): 149 - 157 .
Lang Shanxin , Hu Sijia , Li Meng , et al . Ecological restoration measures improved carbon sequestration of desertification grassland ecosystem in alpine area [J]. Environmental Science & Technology , 2021 , 44 ( 4 ): 149 - 157 .
Zhou Yao , Ma Jingli , Ma Jing , et al . Extending grazing time during the warm season can reduce P limitation and increase the N cycling rate in arid desert steppes [J]. Science of the Total Environment , 2024 , 941 : 173664 .
Xiao Jian , Zhang Jianglin , Li Peng , et al . Enhancing phosphorus transformation in typical reddish paddy soil from China: Insights on long-term straw return and pig manure application via microbial mechanisms [J]. Science of the Total Environment , 2024 , 940 : 173513 .
Jiang Haodong , Yang Nairui , Qian Hongyu , et al . Effects of different ecological restoration pattern on soil organic nitrogen components in alpine sandy land [J]. Agronomy , 2024 , 14 ( 4 ): 680 .
金耀涛 , 田丽慧 , 张登山 , 等 . 高寒沙地地表风沙沉积物粒度特征的时空变化 [J]. 青海农林科技 , 2024 ( 4 ): 82 - 90 .
Jin Yaotao , Tian Lihui , Zhang Dengshan , et al . Spatiotemporal variation of particle size characteristics of surface aeolian sediments in alpine desert [J]. Science and Technology of Qinghai Agriculture and Forestry , 2024 ( 4 ): 82 - 90 .
鲍士旦 . 土壤农化分析 [M]. 3版 . 北京 : 中国农业出版社 , 2000 .
Bao Shidan . Soil and agricultural chemistry analysis [M]. 3rd ed . Beijing : China Agriculture Press , 2000 .
Thapa M , Li Tianyang , He Binghui , et al . Soil C, N, and P stoichiometry in response to different land uses in an agroforestry hillslope of southwest China [J]. Archives of Agronomy and Soil Science , 2022 , 68 ( 5 ): 615 - 629 .
He Mingzhu , Dijkstra F A , Zhang Ke , et al . Leaf nitrogen and phosphorus of temperate desert plants in response to climate and soil nutrient availability [J]. Scientific Reports , 2014 , 4 : 6932 .
陶冶 , 刘耀斌 , 吴甘霖 , 等 . 准噶尔荒漠区域尺度浅层土壤化学计量特征及其空间分布格局 [J]. 草业学报 , 2016 , 25 ( 7 ): 13 - 23 .
Tao Ye , Liu Yaobin , Wu Ganlin , et al . Regional-scale ecological stoichiometric characteristics and spatial distribution patterns of key elements in surface soils in the Junggar desert, China [J]. Acta Prataculturae Sinica , 2016 , 25 ( 7 ): 13 - 23 .
Turner B L , Mahieu N , Condron L M , et al . Quantification and bioavailability of scyllo-inositol hexakisphosphate in pasture soils [J]. Soil Biology and Biochemistry , 2005 , 37 ( 11 ): 2155 - 2158 .
王安林 , 马瑞 , 马彦军 , 等 . 复合型治沙措施对土壤细菌群落结构及功能的影响 [J]. 草业学报 , 2024 , 33 ( 3 ): 46 - 60 .
Wang Anlin , Ma Rui , Ma Yanjun , et al . Effects of compound sand control measures on soil bacterial community structure and function [J]. Acta Prataculturae Sinica , 2024 , 33 ( 3 ): 46 - 60 .
Zhou Wenxin , Li Changjia , Wang Shuai , et al . Effects of vegetation restoration on soil properties and vegetation attributes in the arid and semi-arid regions of China [J]. Journal of Environmental Management , 2023 , 343 : 118186 .
Huo Chunlin , Zhang Zhonghua , Luo Yinghua , et al . Altitudinal patterns of soil and microbial C:N:P stoichiometry in subtropical forests in Daming Mountain, south China [J]. Frontiers in Earth Science , 2025 , 13 : 1569387 .
Rocci K S , Cleveland C C , Eastman B A , et al . Aligning theoretical and empirical representations of soil carbon-to-nitrogen stoichiometry with process-based terrestrial biogeochemistry models [J]. Soil Biology and Biochemistry , 2024 , 189 : 109272 .
Lu Peina , Yang T , Li Lijun , et al . Response of oat morphologies, root exudates, and rhizosphere fungal communities to amendments in a saline-alkaline environment [J]. PLoS One , 2020 , 15 ( 12 ): e0243301 .
Hinsinger P . Bioavailability of soil inorganic P in the rhizosphere as affected by root-induced chemical changes: A review [J]. Plant and Soil , 2001 , 237 ( 2 ): 173 - 195 .
Qian Hongyu , Yang Nairui , Jiang Haodong , et al . Effects of artificial vegetation restoration pattern on soil phosphorus fractions in alpine desertification grassland [J]. Plants , 2025 , 14 ( 10 ): 1429 .
李彦林 , 陈杨洋 , 杨霜溶 , 等 . 植物根系分泌的有机酸对土壤碳氮矿化的影响 [J]. 生态环境学报 , 2024 , 33 ( 9 ): 1362 - 1371 .
Li Yanlin , Chen Yangyang , Yang Shuangrong , et al . Study on the effects of organic acids in plant root exudates on soil organic carbon and nitrogen mineralization [J]. Ecology and Environmental Sciences , 2024 , 33 ( 9 ): 1362 - 1371 .
Yang Xueyun . Effect of supplying C and N on the mineralization and priming effect of organic matter in loessial soil [J]. Plant Nutrition and Fertilizing Science , 2007 ,13( 3 ) 423 - 429 .
陶冬雪 , 高英志 . 土壤解磷微生物促进植物磷素吸收策略研究进展 [J]. 生态学报 , 2023 , 43 ( 11 ): 4390 - 4399 .
Tao Dongxue , Gao Yingzhi . Advances on the strategies of soil phosphate solubilizing microorganisms to promote plant phosphorus uptake [J]. Acta Ecologica Sinica , 2023 , 43 ( 11 ): 4390 - 4399 .
0
Views
2
下载量
0
CSCD
Publicity Resources
Related Articles
Related Author
Related Institution
京公网安备11010802024621