崩岗治理碳汇作用与碳汇能力评估

doi:10.16843/j.sswc.2023109

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摘要为了评估崩岗治理的碳汇能力,在福建省安溪县选择未治理崩岗(UB)为对照,综合治理模式崩岗(MB)和整地造林模式崩岗(AB)为研究对象,分层采集0~10、10~20 和20~40cm土壤样品,使用碳氮分析仪测定土壤有机碳,环刀法测定土壤密度;通过样方法和全面清查法调查树种、胸径、树高,利用生物量方程和收获法测定生物量。结果表明:1)崩岗治理产生明显的保土保碳、减蚀减排和增绿增汇的作用;2) AB的增汇作用以植被碳库提升为主,MB以土壤碳库提升为主;3) AB的碳汇能力高于MB,2种模式的造林及其管护方式是引起碳汇增量差异的主要原因;4)崩岗治理10 a左右,拦蓄沙土中的土壤碳密度低于南方红壤区退化土地植被修复后的土壤碳密度,具有较大的提升空间。崩岗治理是防治南方红壤丘陵区水土流失的有效措施,具有明显的保碳减排增汇等作用,研究结果可为今后崩岗治理的模式选择与其碳汇能力评估提供科学支撑。

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	成辉
	钟小剑
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关键词 ：崩岗治理, 水土保持, 碳汇, 碳中和, 监测评价

Abstract：[Background] Benggang management is an important soil and water conservation measure in the southern red soil region, it plays a crucial role in maintaining ecosystem stability and improving the environment. However, research on the impact of Benggang management on carbon sink is still relatively limited. Thus, the objective of this study is to assess the carbon sink capability of Benggang management in terms of protecting soil and carbon, mitigating erosion and carbon emission, and promoting vegetation and carbon sequestration, as well as the differences in carbon sink capacity among different management models.[Methods] We selected one un-managed Benggang (UB), one Benggang with a comprehensively managed (MB) and three Benggangs with a land cultivation and afforestation Bengang managed (AB) as the research objects in Anxi county, Fujian province. Soil samples were collected at intervals of 0-10, 10-20 and 20-40 cm from different depths in all selected Benggangs. SOC (soil organic carbon) was determined using a carbon-nitrogen analyzer. Soil bulk density was measured using the ring knife method. Data on tree species, diameter at breast height, and tree height were obtained through field surveys and sampling methods. The tree biomass was quantified using biomass equations and harvesting methods.[Results] 1) Benggang management effectively protect soil and carbon, mitigate erosion and carbon emission, and promote vegetation and carbon sequestration. The carbon conservation, carbon emission reduction, and carbon sequestration capacity of MB are 32.00 t/hm², 23.47 t/hm² CO₂ and 35.86 t/hm² CO₂, respectively. Those of AB are 3.97-9.42 t/hm² C, 2.91-6.91 t/hm² CO₂ and 73.77-727.98 t/hm² CO₂, respectively. Based on this calculation, the managed Benggangs may increase carbon sequestration by 399.73×10⁴ t CO₂ in Anxi county. 2) The carbon sequestration effect of AB primarily relies on the enhancement of vegetation carbon stocks, accounting for 51.24 %-97.35 % of the total carbon sequestration, while for MB, it mainly relies on the enhancement of soil carbon stocks, accounting for 72.39 % of the total carbon sequestration. 3) The carbon sequestration capacity of AB is higher than that of MB. The main reason for the difference between the two methods is the afforestation and management practices employed. 4) After approximately 10 years of Benggang management, the soil carbon density of the managed areas is currently lower than that of degraded following vegetation restoration in the southern red soil region. This suggests that there is considerable potential for improvement in the soil carbon density of Benggang management.[Conclusions] Benggang management serves as a measure to prevent water and soil erosion and promote soil carbon conservation, and to reduce carbon emission, and carbon sequestration in the red soil hilly areas of southern China. The findings may provide scientific support for the selection of future Benggang management models and the assessment of their carbon sequestration capacity.

Key words： Benggang management soil and water conservation carbon sink carbon neutrality monitoring and evaluation

收稿日期: 2023-07-24

PACS:

S157.2

基金资助:水利部重大科技项目“南方红壤区典型侵蚀退化地不同治理措施碳汇效应与计量技术研究与示范”(SKS-2022083);福建省水利科技项目“南方红壤侵蚀区水土保持项目碳汇核算研究”(MSK202311)

通讯作者: 李智广(1966-),男,博士,正高级工程师(二级)。主要研究方向:水土保持监管、监测、信息化、项目建设管理和科技。E-mail:lizhiguang@mwr.gov.cn E-mail: lizhiguang@mwr.gov.cn

作者简介: 成辉(1998-),男,博士研究生。主要研究方向:水土保持碳汇。E-mail:hcheng16@163.com

引用本文:

成辉, 钟小剑, 李智广, 吴娟, 卢顺发. 崩岗治理碳汇作用与碳汇能力评估[J]. 中国水土保持科学, 2024, 22(2): 146-153.
CHENG Hui, ZHONG Xiaojian, LI Zhiguang, WU Juan, LU Shunfa. Assessment on the role and capacity of carbon sink in managed Benggang. SSWC, 2024, 22(2): 146-153.

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http://journal12.magtechjournal.com/Jweb_stbc/CN/10.16843/j.sswc.2023109 或 http://journal12.magtechjournal.com/Jweb_stbc/CN/Y2024/V22/I2/146

[1]	李智广,王海燕,王隽雄.碳达峰与碳中和目标下水土保持碳汇的机理、途径及特征[J].水土保持通报, 2022, 42(3):312. LI Zhiguang, WANG Haiyan, WANG Junxiong. Mechanisms, pathways and characteristics of carbon sinks related to soil and water conservation from perspective of carbon peak and carbon neutralization[J]. Bulletin of Soil and Water Conservation, 2022, 42(3):312.
[2]	李智广,王隽雄,王海燕.区域水土保持碳汇能力评估的指标体系[J].中国水土保持科学, 2023, 21(1):64. LI Zhiguang, WANG Junxiong, WANG Haiyan. Index system for evaluating the carbon sink capacity of regional soil and water conservation[J]. Science of Soil and Water Conservation, 2023, 21(1):64.
[3]	李智广,成辉,方怒放,等.淤地坝保碳、减排、增汇作用与其能力评估[J].水土保持学报, 2023, 37(4):1. LI Zhiguang, CHENG Hui, FANG Nufang, et al. The role of Yudiba dams in protecting carbon, reducing carbon emission and enhancing carbon sequestration and its capability assessment[J], Journal of Soil and Water Conservation, 2023, 37(4):1.
[4]	阮伏水.福建省崩岗侵蚀与治理模式探讨[J].山地学报, 2003,21(6):675. RUAN Fushui. Study on slump gully erosion and Its control in Fujian province[J]. Journal of Mountain Science, 2003,21(6):675.
[5]	冯明汉,廖纯艳,李双喜,等.我国南方崩岗侵蚀现状调查[J].人民长江, 2009, 40(8):66. FENG Minghan, LIAO Chunyan, LI Shuangxi, et al. Investigation on status of hill collapsing and soil erosion in southern China[J]. Yangtze River, 2009, 40(8):66.
[6]	梁音,宁堆虎,潘贤章,等.南方红壤区崩岗侵蚀的特点与治理[J].中国水土保持, 2009(1):31. LIANG Yin, NING Duihu, PAN Xianzhang, et al. Characteristics and control of collapsing gully erosion in southern red soil region, China[J]. Soil and Water Conservation in China, 2009(1):31.
[7]	刘洪鹄,谢浩,钱峰.南方崩岗侵蚀机理及治理浅见[J].人民长江, 2019, 50(2):30. LIU Honghu, XIE Hao, QIAN Feng. Mechanism of hillock collapsing erosion in southern China and its control suggestions[J]. Yangtze River, 2019, 50(2):30.
[8]	林敬兰,黄炎和.崩岗侵蚀的成因机理研究与问题[J].水土保持研究, 2010, 17(2):41. LIN Jinglan, HUANG Yanhe. Review of study on formation mechanism of slope disintegration erosion ang its problems[J]. Research of Soil Water Conservation, 2010, 17(2):41.
[9]	冯舒悦,文慧,倪世民,等.南方典型崩岗综合治理模式研究[J].中国水土保持, 2019(2):18. FENG Shuyue, WEN Hui, NI Shimin, et al. Research on comprehensive control of typical collapsing gully in southern China[J]. Soil and Water Conservation in China, 2019(2):18.
[10]	姜超,陈志彪,陈志强,等.红壤侵蚀区崩岗土壤养分化学计量特征分异规律[J].水土保持学报, 2016, 30(6):193. JIANG Chao, CHEN Zhibiao, CHEN Zhiqiang, et al. Variation of stoichiometric characteristics of soil nutrients in collapse mound of eroded red soil region[J]. Journal of Soil and Water Conservation, 2016, 30(6):193.
[11]	区晓琳,陈志彪,陈志强,等.中亚热带植被恢复过程中崩岗土壤性质分异特征[J].生态学报, 2019, 39(6):2180. OU Xiaolin, CHEN Zhibiao, CHEN Zhiqiang, et al. Variation in soil property and its response to vegetation restoration in areas of collapse mound in mid-subtropical China[J]. Acta Ecologica Sinica, 2019, 39(6):2180.
[12]	安溪县人民政府办公室.安溪县"十四五"水土保持规划[EB/OL].(2022-03-02)[2023-06-21]. http://www.fjax.gov.cn/zwgk/zfxxgkzl/zfxxgkml/ghjh/zxgh/202203/t20220309_2704726.htm. Office of the People's Government of Anxi County. The 14th Five-Year Plan for soil and water conservation in Anxi county[EB/OL].(2022-03-02)[2023-06-21]. http://www.fjax.gov.cn/zwgk/zfxxgkzl/zfxxgkml/ghjh/zxgh/202203/t20220309_2704726.htm.
[13]	李延升.田间条件下成龄茶树树体生物量和养分分布特性及根系生长特性研究[D].成都:四川农业大学, 2012:1. LI Yansheng. Study under the condition of field grown tea tree biomass and nutrient distribution and the characteristics of root growth[D]. Chengdu:Sichuan Agricultural University, 2012:1.
[14]	陈志明.安溪县崩岗侵蚀现状分析与治理研究[D].福州:福建农林大学, 2007:1. CHEN Zhiming. Analysis of status-quo of collapsing hill erosion in Anxi county and investigation on its control[D]. Fuzhou:Fujian Agriculture and Forestry University, 2007:1.
[15]	LAL R. Soil erosion and the global carbon budget[J]. Environment International, 2003, 29(4):437.
[16]	XIAO Haibing, LI Zhongwu, CHANG Xiaofeng, et al. The mineralization and sequestration of organic carbon in relation to agricultural soil erosion[J]. Geoderma, 2018, 329:73.
[17]	YAO Xiong, YU Kunyong, WANG Guanyu, et al. Effects of soil erosion and reforestation on soil respiration, organic carbon and nitrogen stocks in an eroded area of southern China[J]. Science of the Total Environment, 2019, 683:98.
[18]	肖胜生,房焕英,段剑,等.植被恢复对侵蚀型红壤碳吸存及活性有机碳的影响[J].环境科学研究, 2015, 28(5):728. XIAO Shengsheng, FANG Huangying, DUAN Jian, et al. Effects of vegetation restoration on soil carbon sequestration and active organic carbon in eroded red soil[J]. Research of Environmental Science, 2015, 28(5):728.
[19]	谢锦升,杨玉盛,解明曙,等.植被恢复对侵蚀退化红壤碳吸存的影响[J].水土保持学报, 2006,20(6):95. XIE Jinsheng, YANG Yusheng, XIE Mingshu, et al. Effects of vegetation restoration on carbon sequestration in degraded red soil[J]. Journal of Soil and Water Conservation, 2006,20(6):95.
[20]	王玉婷,查轩,陈世发,等.红壤侵蚀退化马尾松林下不同治理模式土壤化学计量特征[J].应用生态学报, 2020, 31(1):17. WANG Yuting, ZHA Xuan, CHEN Shifa, et al. Soil stoichiometry of Pinus massoniana forest in red soil erosion area under different management patterns[J]. Chinese Journal of Applied Ecology, 2020, 31(1):17.
[21]	张明阳,王克林,刘会玉,等.生态恢复对桂西北典型喀斯特区植被碳储量的影响[J].生态学杂志, 2014, 33(9):2288. ZHANG Mingyang, WANG Kelin, LIU Huiyu, et al. Impacts of ecological restoration on vegetation carbon storage in the typical region of northern Guangxi, China[J], Chinese Journal of Ecology, 2014, 33(9):2288.
[22]	徐凯健,谢锦升,曾宏达,等.生态恢复条件下典型红壤侵蚀区马尾松林碳储量时空变化与驱动力分析[J].中国水土保持科学, 2016, 14(1):89. XU Kaijian, XIE Jinsheng, ZENG Hongda, et al. Driving factors and spatiotemporal dynamics of carbon storage of a Pinus massoniana plantation in reddish soil erosion region with ecological restoration[J]. Science of Soil and Water Conservation, 2016, 14(1):89.
[23]	唐国勇,李昆,张昌顺.施肥对干热河谷生态恢复区林木生长及土壤碳氮含量的影响[J].水土保持学报, 2009, 23(4):185. TANG Guoyong, LI Kun, ZHANG Changshun, et al. Effects of fertilization on tree growth and soil carbon, nitrogen content at an ecological restoration area in Dry-Hot valley[J], Journal of Soil and Water Conservation, 2009, 23(4):185.
[24]	STEWART C E, PAUSTIAN K, CONANT R T, et al. Soil carbon saturation:Evaluation and corroboration by long-term incubations[J]. Soil Biology and Biochemistry, 2008, 40(7):1741.
[25]	夏学齐,杨忠芳,余涛,等.中国土壤碳密度系列参数[M].北京:地质出版社, 2018:172. XIA Xueqi, YANG Zhongfang, YU Tao, et al. Series parameters of soil carbon density in China[M]. Beijing:Geology Press, 2018:172.