Changes in Soil Organic Pool and Carbon Preservation Capacity of Macro- and Micro-aggregates in Response to Land-Use Change in North-Western India

Journal of Soil Science and Plant Nutrition - Tập 23 - Trang 2849-2867 - 2023
Rajan Bhatt1,2, Pritpal Singh1,3, Sandeep Sharma1,4
1Punjab Agricultural University, Ludhiana, India
2Krishi Vigyan Kendra (KVK), Amritsar, India
3PAU-Farmer Advisory Service Scheme, Bathinda, India
4Ludhiana, India

Tóm tắt

Soil aggregate stability is considered feasible and important indicator for understanding complex interactions between soils’ physico-chemical and biological properties and soil structure. The present study was therefore, conducted to find out the land-use change induced alteration in soil organic carbon (C) pool in response to changed restored engineering. The present study was conducted to reveal the distribution of water stable aggregates, aggregate stability, aggregate associated C of macro-and micro-aggregates, C preservation capacity of aggregate, and the labile and non-labile C fractions of variable oxidizability due to land-use change from the uncultivated soils to under rice-wheat, seed sugarcane, ratoon sugarcane and permanent grasslands in north-western India. These results showed that water stable aggregates, macro-and micro-aggregates, C preservation capacity, aggregate ratio and total organic carbon (TOC) stocks were significantly (p < 0.05) higher in permanent grassland and uncultivated soils. Ratoon sugarcane soils had ~ 10.3% higher TOC pool than the seed sugarcane. A significant decrease in TOC pool by ~ 11.3–11.9% occurred in soils under seed sugarcane cultivation, compared to others. Soils under seed sugarcane had ~ 11.5% lower C stocks, compared with the rice–wheat soils. As compared with the uncultivated soils, highest C loss of 3.3–3.7 Mg C ha−1 occurred in soils under seed sugarcane, followed by almost equal in rice-wheat (1.9–2.0 Mg C ha−1) and ratoon sugarcane (1.9–2.1 Mg C ha−1). The greatest C loss in soils under seed sugarcane was ascribed to increased tillage intensity. More intensified tillage under seed sugarcane cultivation resulted in decreased proportion of macro-aggregates (> 0.25 mm) and greater stabilization of organic C in relatively recalcitrant C pool as compared to those under ratoon sugarcane. Active C (Fract. 1 + Fract. 2) pool in surface soil layer under ratoon sugarcane was significantly higher by ~ 25.1–64.9%, compared with others. Conversely, the passive C pool (Fract. 3 + Fract. 4) was significantly lower in soils under seed sugarcane, while the highest in grassland. The proportion of macro-aggregates in soils under different land-use systems exhibited a linear significant relationship with the TOC pool (R2=0.964*; p < 0.05). Soils under seed sugarcane have significantly lower C preservation capacity of macro-aggregates by ~ 42.5%, compared with the ratoon sugarcane. Rice–wheat ecosystem had significantly higher C preservation capacity of macro-aggregates (> 0.25 mm) by ~ 0.70 g C kg−1 soil (~ 80.5%) than the seed sugarcane. The sensitivity index showed significantly higher sensitivity of TOC pool for soils under seed sugarcane (by ~ 8.6–21.8%), followed by ratoon sugarcane (~ 10.3–13.6%) and rice–wheat (~ 7.6–11.8%), while the lowest for grassland ecosystems (~ 0.2–0.5%) following the land-use change from uncultivated lands. Among the three cropland ecosystems, C preservation capacity of macro-aggregates was significantly higher than the sugarcane-based ecosystems. Considering uncultivated lands as reference, the soils under ratoon sugarcane had significantly higher C management index (CMI) than the other compared land-use systems. The highest values of the CMI in soils under ratoon sugarcane indicate C rehabilitation, while the lower values for seed sugarcane indicate C degradation. We put forward general management suggestions for different land-use and focus on better measures for the management of rice-wheat and seed sugarcane to reduce C losses by increasing aggregate stability of soils under different land-use systems.

Tài liệu tham khảo

Adak T, Sachan R (2009) Effect of co-inoculation of Sinorhizobiummeliloti and Bacillus megaterium on yield and nutrient uptake of fenugreek (Trigonellafoenum-graecum L.) in Mollisol soil. J Med Aromatic Plant Sci 31:124–130. https://doi.org/10.5281/zenodo.812628 Avtar-Singh, Singh P, Mahajan M (2023) Agronomic and biochemical quality attributes and economic indices of sugarcane (Saccharum officinarum L.) cultivation in saline vis-à-vis non-saline soils of south-western Punjab, India. Indian J Agric Sci 93: 106–109. https://doi.org/10.56093/ijas.v93i1.130246 Avtar-Singh, Singh P, Dhillon GPS, Sharma S, Gill RIS (2022) Differential impacts of soil salinity and water logging on Eucalyptus growth and carbon sequestration under mulched vs. unmulched soils in south-western Punjab. India Plant Soil. https://doi.org/10.1007/s11104-022-05700-1 Barto EK, Friese CF, Cipollini D (2010) Arbuscular mycorrhizal fungi protect a native plant from allelopathic effects of an invader. J Chem Ecol 36:351–360. https://doi.org/10.1007/s10886-010-9768-4 Bashir K, Ali S, Ijaz SS, Ahmad I (2016) Effect of organic amendments on distribution, stability and carbon concentration of soil aggregates. Pak J Agri Sci 53:955–961. https://doi.org/10.21162/PAKJAS/16.4205 Beheshti A, Raiesi F, Golchin A (2012) Soil properties, C fractions and their dynamics in land-use conversion from native forests to croplands in northern Iran. Agric Ecosys Environ 148:121–133. https://doi.org/10.1016/j.agee.2011.12.001 Benbi DK, Brar K, Toor AS, Singh P, Singh H (2012) Soil carbon pools under poplar-based agroforestry, rice-wheat, and maize-wheat cropping systems in semi-arid India. Nutrient Cycl Agroecosys 92:107–118. https://doi.org/10.1007/s10705-011-9475-8 Benbi DK, Brar K, Toor AS, Singh P (2015) Total and labile pools of soil organic carbon in cultivated and undisturbed soils in northern India. Geoderma 237–238:149–158. https://doi.org/10.1016/j.geoderma.2014.09.002 Benbi DK, Singh P, Toor AS, Verma G (2016) Manure and fertilizer application effects on aggregate and mineral-associated organic carbon in a loamy soil under rice-wheat system. Commun Soil Sci Plant Anal 47:1828–1844. https://doi.org/10.1080/00103624.2016.1208757 Bhatt R, Singh P (2022) Farmer’s field evaluation of direct seeded rice vis-à-vis puddled transplanted rice in Kapurthala Punjab. Indian J Ext Edu 58:42–46. https://doi.org/10.48165/IJEE.2022.58208 Bhatt R, Hussain A, Singh P (2019) Scientific interventions to improve land and water productivity for climate-smart agriculture in South-Asia. In: Mirza H (ed) Agronomic Crops, 2, Management Practices. Springer, pp 449–458 Bhatt R, Singh P, Kaur G (2022) Soil management vis-à-vis carbon sequestration in relation to land use cover/change in terrestrial ecosystem-a review. In: Hanuzzaman M, Ahammed GJ and Nahar K (eds.) Managing plant production under changing environment. Springer Nature, Singapore. https://doi.org/10.1007/978-981-16-5059-8_3 Blair GJ, Lefroy RDB, Lisle L (1995) Soil carbon fractions, based on their degree of oxidation, and the development of a carbon management index for agricultural systems. Austra J Agric Res 46:1459–1466. https://doi.org/10.1071/AR9951459 Blake GR, Hartage KH (1986) Bulk density In Klute A (Ed.) Methods of soil analysis (part-I). Agron No. 9. Am Soc Agron Madison, USA Blanco C, Lal R (2008) Principles of soil conservation and management. Springer, Dordrecht. https://doi.org/10.1007/978-1-4020-8709-7 Blanco-Canqui H, Lal R (2009) Crop residue management and soil carbon dynamics. In: Lal R and Folett R F (Eds.), Soil carbon sequestration and the greenhouse effect. SSSA Spec. Publ. 57, Madison, WI, pp 291–310. Blanco-Canqui H, Benjamin JG (2013) Impacts of soil organic carbon on soil physical behavior. In: Logsdon S, Berli M, Horn R (eds) Quantifying and modeling soil structure dynamics: advances in agricultural systems modeling, vol 3. Soil Science Society of America Inc., Madison, WI, pp 11–40 Brady NC, Weil RR (2016) Nature and properties of soils. 15th Edition ISBN: 978–0133254488 Bronick CJ, Lal R (2005) Soil structure and management: a review. Geoderma 124:3–22. https://doi.org/10.1016/j.geoderma.2004.03.005 Casida LA, Klein DA, Santoro T (1964) Soil dehydrogenase activity. Soil Sci 98:371–376 Chan KY, Bowman A, Oates A (2001) Oxidizible organic car- bon fractions and soil quality changes in oxicpaleus-talf under different pasture leys. Soil Sci 166:61–67. https://pubag.nal.usda.gov/catalog/1999819. Accessed 30 Dec 2015 Chen J, Luo Y, Li J, Zhou X, Cao J, Wang R (2017) Costimulation of soil glycosidase activity and soil respiration by nitrogen addition. Global Change Biol 23:1328–1337. https://doi.org/10.1111/gcb.13402 Chen J, Elsgaard L, van Groenigen KJ, Olesen JE, Liang Z, Jiang Y (2020) Soil carbon loss with warming: new evidence from carbon-degrading enzymes. Global Change Biol 26:1944–1952. https://doi.org/10.1111/gcb.14986 Choudhury SG, Srivastava S, Singh R, Chaudhari SK, Sharma DK, Singh SK, Sarkar D (2014) Tillage and residue management effects on soil aggregation, organic carbon dynamics and yield attribute in rice-wheat cropping system under reclaimed sodic soil. Soil till Res 136:76–83. https://doi.org/10.1016/j.still.2013.10.001 Dalal RC, Chan KY (2001) Soil organic matter in rainfed cropping systems of the Australian cereal belt. Aust J Soil Res 39(3):435–464. https://doi.org/10.1071/SR99042 Deng L, Liu GB, Shangguan ZP (2014) Land-use conversion and changing soil carbon stocks in China’s ‘Grain-for-Green’ program: a synthesis. Global Change Biol 20:3544–3556. https://doi.org/10.1111/gcb.12508 Doran JW, Zeiss MR (2000) Soil health and sustainability: managing the biotic component of soil quality. Appl Soil Ecol 15(1):3–11. https://doi.org/10.1016/S0929-1393(00)00067-6 Fang Y, Nazaries L, Singh BK, Singh BP (2018) Microbial mechanisms of carbon priming effects revealed during the interaction of crop residue and nutrient inputs in contrasting soils. Global Change Biol 24:2775–2790. https://doi.org/10.1111/gcb.14154 Ferreiro-Domínguez N, Rigueiro-Rodríguez A, Rial-Lovera KE, Romero-Franco R, Mosquera-Losada MR (2016) Effect of grazing on carbon sequestration and tree growth that is developed in a silvopastoral system under wild cherry (Prunus avium L.). Catena 142:11–20. https://doi.org/10.1016/j.catena.2016.02.002 Galantini JA, Senesi N, Brunetti G, Rosell R (2004) Influence of texture on organic matter distribution and quality and nitrogen and sulphur status in semiarid Pampean grassland soils of Argentina. Geoderma 123:143–152. https://doi.org/10.1016/j.geoderma.2004.02.008 Ghosh S, Wilson B, Ghoshal S, Senapati N, Mandal B (2012) Organic amendments influence soil quality and carbon sequestration in the Indo-Gangetic Plains of India. Agri Ecosys Environ 156:134–141. https://doi.org/10.1016/j.agee.2012.05.009 Gregorich EG, Carter MR, Angers DA, Monreal CM, Ellert BH (1994) Towards a minimum data set to assess soil organic matter quality in agricultural soils. Canadian J Soil Sci 74:367–385. https://doi.org/10.4141/cjss94-051 Grigera MS, Drijber RA, Eskridge KM, Wienhold WJ (2006) Soil microbial biomass relationships with organic matter fractions in a Nebraska corn field mapped using apparent electrical conductivity. Soil Sci Soc Am J 70:1480–1488 Howlett DS, Moreno G, Mosquera MR, Losada PK, Nair R, Nair VD (2011) Soil carbon storage as influenced by tree cover in the Dehesa cork oak silvo pasture of central-western Spain. J Environ Monitor 13:1897–1904. https://doi.org/10.1039/C1EM10059A IPCC (2001) Intergovernmental panel on climate change. Climate Change. Cambridge, UK: The Scientific Basis. Cambridge University Press Jackson ML (1967) Soil chemical analysis. Prentice Hall International Inc, London Jastrow JD (1996) Soil aggregate formation and the accrual of particulate and mineral associated organic matter. Soil Bio Biochem 28:665–676. https://doi.org/10.1016/0038-0717(95)00159-X Kleber M, Eusterhues K, Keiluweit M, Mikutta C, Mikutta R, Nico PS (2015) Mineral–organic associations: formation, properties, and relevance in soil environments. Adv Agron 130:1–140. https://doi.org/10.1016/bs.agron.2014.10.005 Kogel-Knabner I, Ekschmitt IK, Flessa H, Guggenberger G, Matzner E, Marschner B, Lützow MV (2008) An integrative approach of organic matter stabilization in temperate soils: linking chemistry, physics and biology. J Plant Nutri Soil Sci 171:5–13. https://doi.org/10.1002/jpln.200700215 Kumar R, Singh B, Kaur P, Beri V (2008) Planning for precision farming in different agro-ecological sub-regions of Punjab-role of natural resources in agricultural research, planning, development, and transfer of technology. Department of Soils, Punjab Agricultural University, Ludhiana-141001, India, p. 72+13 maps Lal R (2004) Soil carbon sequestration to mitigate climate change. Geoderma 123:1–22. https://doi.org/10.1016/j.geoderma.2004.01.032 Lange M, Eisenhauer N, Sierra CA, Bessler H, Engels C, Griffiths R, Mellado-Vázquez PG, Malik AA, Roy J, Scheu S, Steinbeiss S, Thomson BS, Trumbore SE, Gleixner G (2015) Plant diversity increases soil microbial activity and soil carbon storage. Nature Commun 6:6707. https://doi.org/10.1038/ncomms7707 Li XG, Li YK, Li FM, Ma Q, Zhang PL, Yin P (2009) Changes in soil organic carbon, nutrients and aggregation after conversion of native desert soil into irrigated arable land. Soil till Res 104:263–269. https://doi.org/10.1016/j.still.2009.03.002 Li H, Ilyina T, Müller WA, Sienz F (2016) Decadal predictions of the north Atlantic CO2 uptake. Nature Commun 7:1–7 Lino IAN, Santos VM, Escobar IEC, Araujo SDKA, ASF, Maia LC, (2015) Soil enzymatic activity in Eucalyptus Grandis plantations of different Ages. Land Degrad Dev 27:77–82. https://doi.org/10.1002/ldr.2454 Liu M, Han GL (2020) Assessing soil degradation under land-use change: Insight from soil erosion and soil aggregate stability in a small karst catchment in southwest China. Peer J 8:19 Mandal B, Majumder B, Adhya TK, Bandyopadhyay PK, Gangopadhyay A, Sarkar D, Kundu MC, Chaudhary SC, Hazra GC, Kundu S, Samantray SC, Misra AK (2008) Potential of double-cropped rice ecology to conserve organic carbon under subtropical climate. Global Change Biol 14:1–13. https://doi.org/10.1111/j.1365-2486.2008.01627.x Mandal A, Toor AS, Dhaliwal SS, Singh P, Sharma VK, Gupta RK, Naresh RK, Kumar Y, Pramanick B, Nanda G, Gaber A, Alkhedaide A, Soliman MM, Hossain A (2022) Long-term field and horticultural crops intensification in semiarid regions influence the soil physico-biochemical properties and nutrients status. Agron 12:1010. https://doi.org/10.3390/agronomy12051010 Melero S, López-Garrido R, Murillo JM, Moreno F (2009) Conservation tillage: short- and long-term effects on soil carbon fractions and enzymatic activities under Mediterranean conditions. Soil Till Res 104:292–298. https://doi.org/10.1016/j.still.2009.04.001 Mikha MM, Rice CW (2004) Tillage and manure effects on soil and aggregate associated carbon and nitrogen. Soil Sci Soc Am J 68:809–816. https://doi.org/10.2136/sssaj2004.8090 Mosca E, Montecchio L, Scattolin L, Garbaye J (2007) Enzymatic activities of three ectomycorrhizal types of Quercus robur L. in relation to tree decline and thinning. Soil Biol Biochem 39:2897–2904 Mosquera-Losada MR, Santiago-Freijanes JJ, Rois-Díaz M, Moreno G, den Herder M, Aldrey-Vázquez JA, Ferreiro-Domínguez N, Pantera A, Pisanelli A, Rigueiro-Rodríguez A (2015) Agroforestry in Europe: a land management policy tool to combat climate change. Land Use Policy 78:603–613. https://doi.org/10.1016/j.landusepol.2018.06.052 Naylor D, Sadler N, Bhattacharjee A, Graham EB, Anderton CR, McClure R, Lipton M, Hofmockel KS, Jansson JK (2020) Soil microbiomes under climate change and implications for carbon cycling. Annual Rev Environ Resour 45:29–59 Notaro KA, de Medeiros EV, Duda GP, Silva AO, Moura PM (2014) Agroforestry systems, nutrients in litter and microbial activity in soils cultivated with coffee at high altitude. Scientia Agricola 71:87–95. https://doi.org/10.1590/s0103-90162014000200001 Olk DC, Cassman KG, Randall EW, Kinchesh P, Sanger LJ, Anderson JM (1996) Changes in chemical properties of organic matter with intensified rice-cropping in tropical lowland soil. European J Soil Sci 47:293–303. https://doi.org/10.1111/j.1365-2389.1996.tb01403.x Pan GX, Zhou P, Li LQ, Zhang XH (2007) Core issues and research progresses of soil science of carbon sequestration. Acta Pedol Sin 44:328–337 Piedallu C, Gégout JC, Lebourgeois F, Seynave I (2016) Soil aeration, water deficit, nitrogen availability, acidity and temperature all contribute to shaping tree species distribution in temperate forests. J Veg Sci 27:387–399 Plaza-Bonilla D, Arrúe JL, Cantero-Martínez C, Fanlo R, Iglesias A, Álvaro-Fuentes J (2015) Carbon management in dryland agricultural systems: a review. Agron Sustain Develop 35:1319–1334. https://doi.org/10.1007/s13593-015-0326-x Roger-Estrade J, Anger C, Bertrand M, Richard G (2010) Tillage and soil ecology: partners for sustainable agriculture. Soil till Res 111:33–40. https://doi.org/10.1016/j.still.2010.08.010 Sainju UM, Lenssen A, Caesar-Thonthat T, Waddell J (2007) Dryland plant biomass and soil carbon and nitrogen fractions on transient land as influenced by tillage and crop rotation. Soil till Res 93:452–461. https://doi.org/10.1016/j.still.2006.06.003 Sakin E (2012) Organic carbon, organic matter and bulk density relationships in arid-semi arid soils in Southeast Anatolia region. African J Biotech 11(6):1373–1377. https://doi.org/10.5897/AJB11.2297 Sharma S, Singh P, Kumar S (2020) Responses of soil carbon pools, enzymatic activity and crop yields to nitrogen and straw incorporation in a rice-wheat cropping system in north-western India. Front Sust Food Sys 4:532704. https://doi.org/10.3389/fsufs.2020a.532704 Sharma S, Singh P, Sodhi GPS (2020) Soil organic carbon and biological indicators of uncultivated vis-à-vis intensively cultivated soils under rice–wheat and cotton–wheat cropping systems in South-western Punjab. Carbon Manage 11:681–695. https://doi.org/10.1080/17583004.2020.1840891 Sharma S, Singh P, Choudhary OP, Neemisha (2021) Nitrogen and rice straw incorporation impact nitrogen use efficiency, soil nitrogen pools and enzyme activity in rice-wheat system in north-western India. Field Crops Res 266:108131. https://doi.org/10.1016/j.fcr.2021.108131 Sharma S, Singh P, Angmo P, Satpute S (2022) Total and labile pools of organic carbon in relation to soil biological properties under contrasting land-use systems in a dry mountainous region. Carbon Manage 13:352–371. https://doi.org/10.1080/17583004.2022.2089236 Sharma S, Singh P, Chauhan S, Choudhary OP (2022) Landscape position and slope aspects impacts on soil organic carbon pool and biological indicators of a fragile ecosystem in high altitude cold arid region. J Soil Sci Plant Nutr 22:6235. https://doi.org/10.1007/s42729-022-00831-x Sharma S, Vashisht BB, Singh P, Singh Y (2022) Changes in soil aggregate-associated carbon, enzymatic activity and biological pools under conservation agriculture-based practice in rice-wheat system. Biomass Convers Biorefin. https://doi.org/10.1007/s13399-021-02144-y Shi Z, Thomey ML, Mowll W, Litvak M, Brunsell NA, Collins SL, Pockman WT, Smith MD, Knapp AK, Luo Y (2014) Differential effects of extreme drought on production and respiration: synthesis and modeling analysis. Biogeosci 11:621–633. https://doi.org/10.5194/bg-11-621-2014 Shi H, Fan J, Zhao D (2017) Predicting household PM 2.5-reduction behavior in Chinese urban areas: an integrative model of theory of planned behavior and norm activation theory. J Cleaner Produc 145:64–73. https://doi.org/10.1016/j.jclepro.2016.12.169 Singh P, Benbi DK (2016) Effect of inorganic fertilizers and farm yard manure on physical properties of soil under rice-wheat cropping. Agri Res J 53:328–333 Singh P, Benbi DK (2018) Nutrient management effects on organic carbon pools in a sandy loam soil under rice-wheat cropping. Arch Agron Soil Sci 64:1879–1891. https://doi.org/10.1080/03650340.2018.1465564 Singh P, Benbi DK (2018) Soil organic carbon pool changes in relation to slope position and land-use in Indian lower Himalayas. CATENA 166:171–180. https://doi.org/10.1016/j.catena.2018.04.006 Singh P, Benbi DK (2020) Modeling soil organic carbon with DNDC and Roth C models in different wheat-based cropping systems in north-western India. Communi Soil Sci Plant Anal 51:1184–1203. https://doi.org/10.1080/00103624.2020.1751850 Singh P, Benbi DK (2020) Nutrient management impacts on net ecosystem carbon budget and energy flow nexus in intensively cultivated cropland ecosystems of north-western India. Paddy Water Environ 18:697–715. https://doi.org/10.1007/s10333-020-00812-9 Singh P, Benbi DK (2021) Physical and chemical stabilization of soil organic matter in cropland ecosystems under rice-wheat, maize-wheat and cotton-wheat cropping systems in north-western India. Carbon Manage 12:603–21. https://doi.org/10.1080/17583004.2021.1992505 Singh P, Benbi DK (2022) Nutrient management effects on carbon input through root and shoot biomass in a rice-wheat system. Agri Res J 59:135–145 Singh P, Benbi DK (2023) Organic carbon in soils’ fine fraction: thresholds in saturation capacity and its relationship with carbon stabilization. Tropical Ecol. https://doi.org/10.1007/s42965-022-00288-0 Singh G, Singh P, Sodhi GPS (2018) Status of crop management practices for rice and basmati cultivation in south-western Punjab. J Commun Mobilization Sustain Develop 13:457–462 Singh P, Singh G, Sodhi GPS (2020) Energy and carbon foot-prints of wheat establishment following different rice residue management strategies vis-à-vis conventional tillage coupled with rice residue burning in north-western India. Energy 200:117554. https://doi.org/10.1016/j.energy.2020.117554 Singh P, Benbi DK, Verma G (2021) Nutrient management impacts on nutrient use efficiency and energy, carbon, and net ecosystem economic budget of rice-wheat cropping system in north-western India. J Soil Sci Plant Nutri 21:559–577. https://doi.org/10.1007/s42729-020-00383-y Singh P, Sharma S, Nisar S, Choudhary OP (2023) Structural stability and organic matter stabilization in soils: differential impacts of soil salinity and sodicity. J Soil Sci Plant Nutr. https://doi.org/10.1007/s42729-023-01136-3 Singh P, Bhatt R, Kaur G (2021b) Phosphorus availability in soils and use efficiency for food and environmental sustainability. R. Bhatt et al. (eds.), Input use efficiency for food and environmental security. https://doi.org/10.1007/978-981-16-5199-1_12 Sinsabaugh RL (2010) Phenol oxidase, peroxidase and organic matter dynamics of soil. Soil Biol Biochem. 42:391–404 Six J, Paustian K, Elliott ET, Combrink C (2000) Soil structure and organic matter: I. Distribution of aggregate-size classes and aggregate-associated carbon. Soil Sci Soc Am J 64:681–689. https://doi.org/10.2136/sssaj2000.642681x Six J, Conant RT, Paul EA, Paustian K (2002) Stabilization mechanisms of soil organic matter: implications for C-sequestration of soil. Plant Soil 241:155–176 Six J, Bossuyt H, Degryze S, Denef K (2004) A history of research on the link between (micro)aggregates, soil biota, and soil organic matter dynamics. Soil and Till Res 79:7–31. https://doi.org/10.1016/j.still.2004.03.008 Snyder JD, Trofymow JA (1984) A rapid accurate wet oxidation diffusion procedure for determining organic and inorganic carbon in pot and soil samples. Communi Soil Sci Plant Anal 15:587–597. https://doi.org/10.1080/00103628409367499 Somasundaram J, Singh RK, Parandiyal AK, Prasad SN (2009) Micronutrient status of soils under different land-use systems in Chambal ravines. J Indian Soc Soil Sci 57:307–312 Štursová M, Baldrian P (2011) Effects of soil properties and management on the activity of soil organic matter transforming enzymes and the quantification of soil-bound and free activity. Plant Soil 338:99–110. https://doi.org/10.1007/s11104-010-0296-3 Tabatabai MA, Bremner JM (1969) Use of p-nitrophenyl phosphate for assay of soil phosphatase activity. Soil Bio Biochem 1:301–307. https://doi.org/10.1016/0038-0717(69)90012-1 Tirgarsoltani MT, Gorji M, Mohammadi MH, Millan H (2014) Evaluation of models for description of wet aggregate size distribution from soils of different land uses. Soil Sci Plant Nutr 60:123–133. https://doi.org/10.1080/00380768.2013.878642 Tirol-Padre A, Ladha JK (2004) Assessing the reliability of permanganate-oxidizable carbon as index of soil labile carbon. Soil Sci Soc Amer J 98:969–978. https://doi.org/10.2136/sssaj2004.9690 Tisdall JM, Oades JM (1982) Organic matter and water-stable aggregates in soils. European J Soil Sci 33:141–163. https://doi.org/10.1111/j.1365-2389.1982.tb01755.x Vourlitis GL, Francisco DAL, Pinto OB, Zappia A, Dalmagro HJ, De Arruda PHZ (2015) Variations in aboveground vegetation structure along a nutrient availability gradient in the Brazilian Pantanal. Plant Soil 389:307–321. https://doi.org/10.1007/s11104-014-2364-6 Wang JG, Li ZX, Cai CF, Ma RM (2014) Particle size and shape variation of Ultisol aggregates affected by abrasion under different transport distances in overland flow. Catena 123:153–162. https://doi.org/10.1016/j.catena.2014.07.020 Wang J, Han X, Yide L, Mingxian L, Zhang Z, Tushou L, Dexiang C (2018) Effects of topographic heterogeneity on community structure and diversity of woody plants in Jianfengling tropical montane rainforest. Scientia Silvae Sinicae 54:1–11 Yang H, Griffiths PR, Tate JD (2003) Comparison of partial least squares regression and multi-layer neural networks for quantification of nonlinear systems and application to gas phase fourier transform infrared spectra. Anal Chim Acta 489:125–136. https://doi.org/10.1016/s0003-2670(03)00726-8 Ye W, Wen QX (1991) Characteristics of humic substances in paddy soils. Pedosphere 1:229–239 Yi S, Arain AM, Woo MK (2006) Modifications of a land surface scheme for improved simulation of ground freeze-thaw in northern environments. Geophysics Res Lett 33:L13501. https://doi.org/10.1029/2006GL026340 Yu H, Gong R, Zhou Y, Cha T, Nie L, Lv Z (2015) Characteristic of soil aggregate stability and soil organic carbon under four typical artificial plantations in Beijing Badaling Mountain area. J Soil Water Conser 29:162–166. https://doi.org/10.21203/rs.3.rs-845068/v1 Zhang P, Wang Y, Xu L, Sun H, Li R, Zhou J (2022) Factors controlling the spatial variability of soil aggregates and associated organic carbon across a semi-humid watershed. Sci Total Environ 809:151155. https://doi.org/10.1016/j.scitotenv.2021.151155 Zhao XG, Wu L, Li A (2017) Research on the efficiency of carbon trading market in China. Renew Sustain Energy Rev 79:1–8. https://doi.org/10.1016/j.rser.2017.05.034