不同物候期兴安落叶松净光合速率对生理生态因子的响应
收稿日期: 2024-02-05
修回日期: 2024-04-03
网络出版日期: 2024-09-02
基金资助
国家重大研发计划“寒温带重度退化针叶林生物多样性提升技术研究与示范”(2023YFF1304002);内蒙古科技计划项目“内蒙古大兴安岭森林生态系统固碳潜力及增汇技术研究”(2023YFDZ0026);内蒙古科技计划项目“内蒙古大兴安岭森林生态系统国家野外科学观测研究站”(2023KYPT0001)
Response of Net Photosynthetic Rate of Larix gmelinii to Physiological and Ecological Factors in Different Phenophases
Received date: 2024-02-05
Revised date: 2024-04-03
Online published: 2024-09-02
研究不同物候期兴安落叶松净光合速率(Pn)变化及其主要影响因素,有助于更好地阐明兴安落叶松碳同化过程和机理。使用LI-6400XT便携式光合测量系统,测定兴安落叶松天然林展叶初期(LOP)、展叶盛期(LSP)和叶变色期(LDP)的净光合速率、叶片温度(Tleaf)、气孔导度(GS)、胞间CO2浓度(Ci)、叶绿素含量(LChl)、氮含量(LN)、光合有效辐射(PAR)、空气温度(Ta)、大气CO2浓度(Ca)、水汽压亏缺(VPD)等生理生态因子,利用Pearson相关性分析和逐步回归分析,系统研究不同物候期兴安落叶松Pn变化特征及其与生理生态因子的关系。结果表明:1)兴安落叶松Pn的大小顺序为LSP>LDP>LOP,上层叶>中层叶>下层叶,差异显著;阳生叶>阴生叶,二者差异不显著。2)不同物候期兴安落叶松Pn与PAR、Ta、Tleaf,GS呈显著或极显著正相关,与Ci呈显著或极显著负相关。3)不同物候期、不同冠层高度兴安落叶松Pn对生理生态因子的响应有所差异,其主控因子是PAR、Ta和GS,此外,还受Tleaf、VPD和Ci的影响。兴安落叶松天然林在不同物候期、不同冠层高度的净光合速率存在显著性差异,在估算碳通量时,应考虑不同冠层高度叶片净光合速率的相对贡献。
关蕾 , 张欣 , 张秋良 , 菅亚男 , 张永亮 . 不同物候期兴安落叶松净光合速率对生理生态因子的响应[J]. 林草资源研究, 2024 , 0(2) : 101 -108 . DOI: 10.13466/j.cnki.lczyyj.2024.02.012
Studying the changes in the net photosynthetic rate(Pn) of Larix gmelinii in different phenophases and identifying its main influencing factors can help to elucidate the process and mechanism of carbon assimilation of Larix gmelinii.The LI-6400XT portable photosynthetic measurement system was used to measure the net photosynthetic rate,leaf temperature(Tleaf),stomatal conductance(GS),intercellular CO2 concentration(Ci),chlorophyll content(LChl),nitrogen content(LN),photosynthetic active radiation(PAR),air temperature(Ta),atmospheric CO2 concentration(Ca) and vapor pressure deficit(VPD)of Larix gmelinii natural forest in the leaf opening period(LOP),leaf spreading period(LSP) and leaf discoloring period(LDP).Pearson correlation analysis and stepwise regression analysis were used to systematically study the variation characteristics of Pn in different phenophases of L.gmelinii and its relationship with physiological,ecological factors and material content.The results showed that:1) The order of Pn of Larix gmelinii was LSP>LDP>LOP,upper leaves>middle leaves>lower leaves,and the difference was significant;sun leaves>shade leaves,the difference was not significant.2) Pn was significantly or extremely significantly positively correlated with PAR,Ta,Tleaf and GS,and significantly or extremely significantly negatively correlated with Ci in different phenophases of L.gmelinii.3) The response of Pn of Larix gmelinii to physiological and ecological factors was dissimilar in different phenophases and at different canopy heights.The main control factors were PAR,Ta and GS.In addition,it was also affected by Tleaf,VPD and Ci.There were significant differences in the net photosynthetic rate of L.gmelinii natural forest in different phenophases and at different canopy heights.When estimating carbon flux,the relative contribution of net photosynthetic rate of leaves at different canopy heights should be considered.
| [1] | 肖文发, 朱建华, 曾立雄, 等. 森林碳汇助力碳中和的几点认识[J]. 林业科学, 2023, 59(3):1-11. |
| [2] | 赵晓焱, 王传宽, 霍宏. 兴安落叶松(Larix gmelinii)光合能力及相关因子的种源差异[J]. 生态学报, 2008(8):3798-3807. |
| [3] | KARL-FRIEDRICH M B, ROLF S, CHRISTIAN K. Sustained enhancement of photosynthesis in mature deciduous forest trees after 8 years of free air CO2 enrichment[J]. Planta, 2010, 232(5):1115-1125. |
| [4] | 雷学军. 光合作用就是碳汇[J]. 中国能源, 2020, 42(6):4-12. |
| [5] | BALDOCCHI D, COLLINEAU S, CALDWELL M M, et al. The physical nature of solar radiation in heterogeneous canopies:Spatial and temporal attributes[J]. Academic Press,1994:21-71. |
| [6] | 冷寒冰, 万宁海, 刘群录. 香樟冠层光环境对叶片功能性状和光合特性的影响[J]. 应用生态学报, 2023, 34(8):2113-2122. |
| [7] | 申双和, 张雪松, 欧阳竹. 双叶模型在冬小麦田冠层CO2通量多层模拟中的应用[J]. 气象学报, 2011, 69(5):819-829. |
| [8] | 张俊杰, 刘青, 韦霄, 等. 光强对金丝李幼苗生长及光合特性的影响[J]. 林业科学, 2022, 58(5):53-64. |
| [9] | HOU Wenfeng, MERLE Tr?nkner, LU Jianwei, et al. Interactive effects of nitrogen and potassium on photosynthesis and photosynthetic nitrogen allocation of rice leaves[J]. BMC Plant Biology, 2019, 19(1):302-315. |
| [10] | MEIR P, KRUIJT B, BROADMEADOW M, et al. Acclimation of photosynthetic capacity to irradiance in tree canopies in relation to leaf nitrogen concentration and leaf mass per unit area[J]. Plant Cell & Environment, 2002, 25(3):343-357. |
| [11] | 陈维. 探究环境因素对光合作用强度的影响[J]. 生物学通报, 2008(2):55-57. |
| [12] | 韩阳瑞, 单炜, 许大为, 等. 干旱区3种典型灌木光合特性及其对环境因子的响应[J]. 西部林业科学, 2021, 50(1):64-70. |
| [13] | 王晶英, 赵雨森, 杨海如, 等. 银中杨光合作用和蒸腾作用对土壤干旱的响应[J]. 中国水土保持科学, 2006(4):56-61. |
| [14] | CAMPOS H, TREJO C, PE?A-VALDIVIA B C, et al. Stomatal and non-stomatal limitations of bell pepper(Capsicum annuum L.) plants under water stress and re-watering:Delayed restoration of photosynthesis during recovery[J]. Environmental & Experimental Botany, 2014,98:56-64. |
| [15] | 季孔庶, 杨秀艳, 杨德超, 等. 鹅掌楸属树种物候观测和杂种家系苗光合日变化[J]. 南京林业大学学报(自然科学版), 2002(6):28-32. |
| [16] | 车富强, 刘明忠, 周刚义, 等. 大兴安岭北部多年冻土现状研究分析[J]. 低温建筑技术, 2020, 42(12):107-111. |
| [17] | 罗丹丹. 干旱胁迫对水曲柳和兴安落叶松幼苗水力和碳同化特征的影响[D]. 哈尔滨: 东北林业大学, 2023. |
| [18] | 郭雪梅. 大兴安岭地区不同树种对极端干旱的响应差异[D]. 哈尔滨: 哈尔滨师范大学, 2022. |
| [19] | 毛子军, 赵溪竹, 刘林馨, 等. 3种落叶松幼苗对CO2升高的光合生理响应[J]. 生态学报, 2010, 30(2):317-323. |
| [20] | 全先奎, 王传宽. 兴安落叶松对环境变化的物候驯化和光合能力适应[J]. 生态学报, 2015, 35(13):4538-4546. |
| [21] | 张慧东. 兴安落叶松林生态系统关键生态过程碳氮分配及其耦合特征研究[D]. 呼和浩特: 内蒙古农业大学, 2017. |
| [22] | 鞠雅莉. 兴安落叶松树干呼吸和叶片光合能力及其对气候变暖的响应[D]. 哈尔滨: 东北林业大学, 2023. |
| [23] | MASABUMI K, HIROYUKI T, MAKOTO W, et al. Photosynthetic downregulation in leaves of the Japanese white birch grown under elevated CO2 concentration does not change their temperature-dependent susceptibility to photoinhibition[J]. Physiologia plantarum, 2013, 147(2):159-168. |
| [24] | 张欣, 张秋良, 孙守家, 等. 兴安落叶松生态系统CO2浓度及其δ13C动态对环境因子的响应[J]. 林业科学, 2023, 59(9):55-65. |
| [25] | HAN Qingmin, KAWASAKI T, NAKANO T, et al. Spatial and seasonal variability of temperature responses of biochemical photosynthesis parameters and leaf nitrogen content within a Pinus densiflora crown[J]. Tree Physiology, 2004, 24(7):737-744. |
| [26] | 张欣. 寒温带兴安落叶松生态系统碳水交换过程与作用机理[D]. 呼和浩特: 内蒙古农业大学, 2023. |
| [27] | 胡文海, 肖宜安. 基于叶绿素荧光成像及荧光参数分布特征的叶片光合异质性定量分析[J]. 植物研究, 2022, 42(6):1052-1061. |
| [28] | 秦文华, 张扬, 朱永泰, 等. 西北干旱区葡萄净光合速率变化及其影响因素[J]. 广西植物, 2022, 42(12):2157-2166. |
| [29] | 郭连金, 杜佳朋, 吴艳萍, 等. 香果树实生苗的光合特性及其与环境因子的关系[J]. 应用生态学报, 2017, 28(5):1473-1481. |
| [30] | 李鑫豪, 闫慧娟, 卫腾宙, 等. 油蒿资源利用效率在生长季的相对变化及对环境因子的响应[J]. 植物生态学报, 2019, 43(10):889-898. |
| [31] | 王海珍, 韩路, 徐雅丽, 等. 不同温度下灰胡杨叶片气孔导度对光强响应的模型分析[J]. 生态环境学报, 2015, 24(5):741-748. |
| [32] | 王芸, 吕光辉, 高丽娟, 等. 荒漠植物白麻气孔导度特征及其影响因子研究[J]. 干旱区资源与环境, 2013, 27(8):158-163. |
| [33] | MOTT K A, PEAK D. Testing a vapour-phase model of stomatal responses to humidity[J]. Plant Cell and Environment, 2013, 36(5):936-944. |
| [34] | 柯世省, 金则新, 林恒琴, 等. 天台山东南石栎光合生理生态特性[J]. 生态学杂志, 2004(3):1-5. |
| [35] | 张富强. 祁连山白桦群落光合速率及其对环境因子的响应研究[J]. 林业调查规划, 2020, 45(4):49-53. |
| [36] | HIKOSAKA K, OSONE Y. A paradox of leaf-trait convergence:Why is leaf nitrogen concentration higher in species with higher photosynthetic capacity?[J]. Journal of Plant Research, 2009, 122(3):245-251. |
| [37] | 范晶, 张玉红. 黑龙江省次生林主要组成树种光合能力与叶片含氮量研究[J]. 植物研究, 2005(3):344-347. |
| [38] | 杨丽萍, 秦艳, 张存厚, 等. 气候变化对大兴安岭兴安落叶松物候期的影响[J]. 干旱区研究, 2016, 33(3):577-583. |
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