光强与水分处理下景宁木兰光合光响应模型拟合比较

生态学杂志

光强与水分处理下景宁木兰光合光响应模型拟合比较

俞芹¹,王倩颖¹,刘志高¹,张明如¹,张寿洲²,申亚梅^1*

(¹浙江农林大学风景园林与建筑学院，浙江临安 311300；²深圳市中国科学院仙湖植物园，广东深圳 518040)

出版日期:2018-03-10 发布日期:2018-03-10

Comparison of the light response models of photosynthesis in leaves ofMagnolia sinostellataunder different light intensity and moisture conditions.

YU Qin¹, WANG Qian-ying¹, LIU Zhi-gao¹, ZHANG Ming-ru¹, ZHANG Shou-zhou², SHEN Ya-mei^1*

(¹College of Landscape Architecture, Zhejiang A&F University, Lin’an 311300, Zhejiang, China; ²Fairylake Botanical Garden, Shenzhen & Chinese Academy of Sciences, Shenzhen 518004, Guangdong, China).

Online:2018-03-10 Published:2018-03-10

摘要/Abstract

摘要： 采用5种数学模型（直角双曲线模型、非直角双曲线模型、二次函数模型、指数模型、直角双曲线修正模型）对不同光照与水分处理下景宁木兰(Magnolia sinostellata)幼苗光响应过程进行拟合分析，以期筛选出光照与水分胁迫下景宁木兰适宜的光响应模型。结果表明：(1)5种拟合模型对景宁木兰光响应过程拟合精度为：指数模型>直角双曲线修正模型>直角双曲线模型>非直角双曲线模型>二次函数模型。(2)光合参数的拟合效果表现为：指数模型对景宁木兰最大净光合速率(P_nmax)、光饱和点(LSP)进行求解较准确，直角双曲线修正模型对光补偿点(LCP)求解最佳，而暗呼吸速率(R_d)的结果采用非直角双曲线模型较为合理。(3)景宁木兰幼苗能适应一定的弱光及流动水环境，而深度遮阴及积水环境抑制景宁木兰幼苗的光合速率。

关键词: 铵态氮, 轻组和重组, 硝态氮, 秸秆还田

Abstract: Five light response models of photosynthesis (exponential, rectangular hyperbolic, non-rectangular hyperbolic, quadratic function, and modified rectangular hyperbola) were applied to analyze the light response curves ofMagnolia sinostellata seedlings under different light intensity and moisture conditions. The results showed that: (1) The fitting accuracy of those models followed the order: exponential > modified rectangular hyperbola > rectangular hyperbola > non-rectangular hyperbola > quadratic function. (2) The light response parameters in fitting effect indicated that the exponential model could result in more accurate maximum net photosynthetic rate (P_nmax) and light saturation point (LSP). The rectangular hyperbolic model was the best one at figuring out light compensation point (LCP). The non-rectangular hyperbolic model was more reasonable to figure out dark respiration rate (R_d). (3)M. sinostellata seedlings could adapt to the environment with weak light and flowing water, but not for strong shading and waterlogging environment.

Key words: light and heavy fraction, ammonium nitrogen, nitrate nitrogen, straw returning

俞芹,王倩颖,刘志高,张明如,张寿洲,申亚梅. 光强与水分处理下景宁木兰光合光响应模型拟合比较[J]. 生态学杂志.

YU Qin, WANG Qian-ying, LIU Zhi-gao, ZHANG Ming-ru, ZHANG Shou-zhou, SHEN Ya-mei. Comparison of the light response models of photosynthesis in leaves ofMagnolia sinostellataunder different light intensity and moisture conditions.[J]. cje.

[1]	苏旺，谢蕊蕊，王舰. 秸秆还田对旱作马铃薯块茎淀粉合成关键酶活性及基因表达的影响 [J]. 生态学杂志, 2020, 39(5): 1566-1574.
[2]	宋佳,曾希柏,王亚男,白玲玉. 秸秆还田的效果、问题与对策 [J]. 生态学杂志, 2020, 39(5): 1715-1722.
[3]	马寰菲,解梦怡,胡汗,郭垚鑫,任成杰,赵发珠. 秦岭不同海拔森林土壤-植物-凋落物化学计量特征对土壤氮组分的影响 [J]. 生态学杂志, 2020, 39(3): 749-757.
[4]	王学敏,刘兴,郝丽英,解宏图,张广娜,陈振华,张玉兰. 秸秆还田结合氮肥减施对玉米产量和土壤性质的影响 [J]. 生态学杂志, 2020, 39(2): 507-516.
[5]	王兴萌,陈志豪,李永春,吴家森,李永夫,钟斌,梁辰飞,徐秋芳. 氮素形态及配比对毛竹和青冈实生苗生长特性的影响 [J]. 生态学杂志, 2019, 38(9): 2655-2661.
[6]	代亮亮,李莉杰,郭亮亮,李根保. 铵态氮和浮游植物对穗花狐尾藻的生理影响 [J]. 生态学杂志, 2019, 38(9): 2727-2733.
[7]	郑海睿,骆静梅,刘笑彤,刘亚军,赵晓霞,解宏图,张晓珂. 秸秆还田量对植物寄生线虫群落的影响 [J]. 生态学杂志, 2019, 38(6): 1725-1731.
[8]	班允赫,李旭,李新宇,王秀娟,王健,苏振成,张惠文. 降解菌系和助腐剂对不同还田方式下水稻秸秆降解特征的影响 [J]. 生态学杂志, 2019, 38(10): 2982-2988.
[9]	彭术,张文钊,侯海军,王华,陈安磊,魏文学. 氮肥减量深施对双季稻产量和氧化亚氮排放的影响 [J]. 生态学杂志, 2019, 38(1): 153-160.
[10]	张文可,苏思慧,隋鹏祥,田平,梅楠,王沣,王美佳,张姣,齐华. 秸秆还田模式对东北春玉米根系分布和水分利用效率的影响 [J]. 生态学杂志, 2018, 37(8): 2300-2308.
[11]	袁嫚嫚,邬刚,胡润,耿维,王家宝,曹哲伟,孙义祥. 稻油轮作下秸秆还田配施化肥对作物产量及肥料利用率的影响 [J]. 生态学杂志, 2018, 37(12): 3597-3604.
[12]	唐佐芯,赵静,孙筱璐,尤业明. 氮添加和凋落物处理对油松-辽东栎混交林土壤氮的影响 [J]. 生态学杂志, 2018, 37(1): 75-81.
[13]	刘鹏飞,红梅,常菲,高海燕,李志新,马玺. 秸秆还田对黑土区西部农田中小型土壤动物群落的影响 [J]. 生态学杂志, 2018, 37(1): 139-146.
[14]	胡亚林1,刘杰2,范志平3*,涂志华3,卢聪3,刘建治3. 大伙房水库流域水源涵养林植被类型对土壤NH₄⁺-N和NO₃^--N淋溶的影响 [J]. 生态学杂志, 2017, 36(8): 2103-2110.
[15]	代亮亮1,2,郭亮亮1,2,李露1,2,周维成3,李根保1*. 铜绿微囊藻和四尾栅藻对铵态氮的响应 [J]. 生态学杂志, 2017, 36(8): 2289-2295.