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[1]MA Zhiliang,GU Guojun,ZHAO Wenqiang,et al.Carbon and Nitrogen Storage of Ground Covers and Soils in the Forest-Shrub Ecotone of Eastern Qinghai-Tibet Plateau[J].Research of Soil and Water Conservation,2020,27(05):17-23.

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Carbon and Nitrogen Storage of Ground Covers and Soils in the Forest-Shrub Ecotone of Eastern Qinghai-Tibet Plateau

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 27 Number of periods: 2020 05 Page number: 17-23 Column: Public date: 2020-08-20

Title:: Carbon and Nitrogen Storage of Ground Covers and Soils in the Forest-Shrub Ecotone of Eastern Qinghai-Tibet Plateau

Author(s):: MA Zhiliang¹, GU Guojun², ZHAO Wenqiang³, LIU Mei^3,4; 1.College of Life Science,China West Normal University,Nanchong,Sichuan;2.Forestry Bureau of Aba Prefecture in Western Sichuan; Lixian,Sichuan;3.Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization, Sichuan Province Key Laboratory of Ecological Restoration and Biodiversity Conservation,Chengdu Institute of Biology,Chinese Academy of Sciences,Chengdu;4.Ecological Security and Protection Key Laboratory of Sichuan Province,Mianyang Normal University,Mianyang,Sichuan

Keywords:: carbon and nitrogen storage; litter; moss; soil; forest-shrub ecotone

CLC:: S718

DOI:: -

Abstract:: In order to reveal carbon and nitrogen processes of ground covers(litter and moss)and soils in the ecotone on the Qinghai-Tibet Plateau, the organic carbon and total nitrogen storage and allocation characteristics of ground covers and soils among three forest types in a typical ecotone(i. e., Picea likiangensis coniferous forest, Picea likiangensis coniferous forest—Salix oritrepha shrub, Sibiraea angustata shrub)on the eastern Qinghai-Tibet Plateau were investigated through field investigation and the sample analysis of ground covers and soils. The results show that the organic carbon and total nitrogen storage of ground covers followed the order of forest-shrub>coniferous forest> shrub, with the value of 28.73 t/hm², 19.96 t/hm², 5.31 t/hm² and 0.96 t/hm², 0.54 t/hm², 0.12 t/hm², respectively. The organic carbon storage in 0—30 cm soil layer in shrub(148.37 t/hm²)were significantly higher than those in coniferous forest(118.19 t/hm²)and forest-shrub(114.93 t/hm²), and the total nitrogen storage of soils followed the order of shrub(19.53 t/hm²)>forest-shrub(14.60 t/hm²)>coniferous forest(11.79 t/hm²). Moreover, the organic carbon and total nitrogen storage in 10—20 cm soil layers were significantly higher than those in 0—10 cm and 20—30 cm soil layers. Combining the organic carbon and total nitrogen storage of ground covers and soils, the organic carbon and total nitrogen storage of soil surface were significantly different among the three forest types, following the order of shrub>forest-shrub> coniferous forest. Furthermore, the storage in 0—30 cm soil layer accounted for 80.0%～96.5% and 93.8%～99.3% of the organic carbon and total nitrogen storage of soil surface, which were significantly higher than those in ground covers. These results indicate that the expansion of alpine shrub communities can increase carbon and nitrogen pools, which is beneficial to ecosystem carbon and nitrogen sequestration on the eastern Qinghai-Tibet Plateau.

References:: [1]Wu S N, Li J Q, Zhou W M, et al. A statistical analysis of spatiotemporal variations and determinant factors of forest carbon storage under China’s Natural Forest Protection Program[J]. Journal of Forestry Research, 2018,29:415-424.
[2]Li H, Shen H H, Zhou L H, et al. Shrub encroachment increases soil carbon and nitrogen stocks in temperate grasslands in China[J]. Land Degradation & Development, 2019,30(7):756-767.
[3]Vukicevich E, Lowery D T,rbez-Torres J R, et al. Groundcover management changes grapevine root fungal communities and plant-soil feedback[J]. Plant and Soil, 2018,424:419-433.
[4]Wu J, Stephen Y, Cai L Q, et al. Effects of different tillage and straw retention practices on soil aggregates and carbon and nitrogen sequestration in soils of the northwestern China[J]. Journal of Arid Land, 2019,11:567-578.
[5]Thomas A D, Elliott D R, Dougill A J, et al. The influence of trees, shrubs, and grasses on microclimate, soil carbon, nitrogen, and CO₂ efflux:Potential implications of shrub encroachment for Kalahari rangelands[J]. Land Degradation & Development, 2018,29(5):1306-1316.
[6]刘玉林,朱广宇,邓蕾,等.黄土高原植被自然恢复和人工造林对土壤碳氮储量的影响[J].应用生态学报,2018,29(7):2163-2172.
[7]刘顺,罗达,刘千里,等.川西亚高山不同森林生态系统碳氮储量及其分配格局[J].生态学报,2017,37(4):1074-1083.
[8]张诗羽,张毅,王昌全,等.岷江上游流域植被覆盖度及其与地形因子的相关性[J].水土保持通报,2018,38(1):69-75.
[9]Liu W, Chen S, Qin X, et al. Storage, patterns, and control of soil organic carbon and nitrogen in the northeastern margin of the Qinghai-Tibetan Plateau[J]. Environmental Research Letters, 2012,7:035401.
[10]Miehe G, Schleuss M P, Seeber E, et al. The Kobresia pygmaea ecosystem of the Tibetan highlands-Origin, functioning and degradation of the world’s largest pastoral alpine ecosystem[J]. Science of the Total Environment, 2019,648:754-771.
[11]张贺全.岷江源区植物群落物种多样性分析[J].水土保持研究,2013,20(5):135-140.
[12]Winsome T, Silva L C R, Scow K M, et al. Plant-microbe interactions regulate carbon and nitrogen accumulation in forest soils[J]. Forest Ecology and Management, 2017,384:415-423.
[13]Ratcliffe J L, Creevy A, Andersen R, et al. Ecological and environmental transition across the forested-to-open bog ecotone in a west Siberian peatland[J]. Science of the Total Environment, 2017,607:816-828.
[14]Moreno-de las Heras M, Sierra R D, Turnbull L, et al. Assessing vegetation structure and ANPP dynamics in a grassland-shrubland Chihuahuan ecotone using NDVI-rainfall relationships[J]. Biogeosciences, 2015,12(1):2907-2925.
[15]Wang H W, Qi Y, Huang C L, et al. Analysis of vegetation changes and dominant factors on the Qinghai-Tibet Plateau, China[J]. Sciences in Cold and Arid Regions, 2019,11(2):62-70.
[16]Wang X, Michalet R, Liu Z, et al. Stature of dependent forbs is more related to the direct and indirect above-and below-ground effects of a subalpine shrub than are foliage traits[J]. Journal of Vegetation Science, 2019,30(3):403-412.
[17]Santos F M, Balieiro F D C, Fontes M A, et al. Understanding the enhanced litter decomposition of mixed-species plantations of Eucalyptus and Acacia mangium[J]. Plant and Soil, 2018,423:141-155.
[18]Mushinski R M, Boutton T W, Scott D A. Decadal-scale changes in forest soil carbon and nitrogen storage are influenced by organic matter removal during timber harvest[J]. Journal of Geophysical Research:Biogeosciences, 2017,122:846-862.
[19]Tuo D F, Gao G Y, Chang R Y, et al. Effects of revegetation and precipitation gradient on soil carbon and nitrogen variations in deep profiles on the Loess Plateau of China[J]. Science of the Total Environment, 2018,626:399-411.
[20]Nwaogu C, Okeke O J, Fashae O, et al. Soil organic carbon and total nitrogen stocks as affected by different land use in an Ultisol in Imo Watershed, southern Nigeria[J]. Chemistry and Ecology, 2018,34(9):854-870.
[21]王艳丽,字洪标,程瑞希,等.青海省森林土壤有机碳氮储量及其垂直分布特征[J].生态学报,2019,39(11):4096-4105.
[22]Lee M H, Park J H, Matzner E. Sustained production of dissolved organic carbon and nitrogen in forest floors during continuous leaching[J]. Geoderma, 2018,310:163-169.
[23]Nie X Q, Peng Y F, Li F, et al. Distribution and controlling factors of soil organic carbon storage in the northeast Tibetan shrublands[J]. Journal of Soils and Sediments, 2019,19:322-331.
[24]Stergiadi M, van der Perk M, de Nijs A C M, et al. Effects of climate change and land management on soil organic carbon, dynamics and carbon leaching in northwestern Europe[J]. Biogeosciences, 2016,13(5):1519-1536.

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Last Update: 2020-08-25