基于光合特性的毛竹实生苗土壤水分有效性及生产力分级

doi:10.13292/j.1000-4890.202110.022

生态学杂志 ›› 2021, Vol. 40 ›› Issue (10): 3088-3097.doi: 10.13292/j.1000-4890.202110.022

基于光合特性的毛竹实生苗土壤水分有效性及生产力分级

景雄,范少辉,蔡春菊^*,刘广路,王树梅,罗慧莹,刘淼

（国际竹藤中心，国家林业和草原局/北京市共建竹藤科学与技术重点实验室，北京 100102）

出版日期:2021-10-10 发布日期:2022-04-01

Classification of soil water availability and productivity of Moso bamboo (Phyllostachys edulis) seedlings based on photosynthetic characteristics.

JING Xiong, FAN Shao-hui, CAI Chun-ju^*, LIU Guang-lu, WANG Shu-mei, LUO Hui-ying, LIU Miao

(International Centre for Bamboo and Rattan, Key Laboratory of National Forestry and Grassland Administration/Beijing for Bamboo & Rattan Science and Technology, Beijing 100102, China).

Online:2021-10-10 Published:2022-04-01

摘要/Abstract

摘要： 以毛竹（Phyllostachys edulis）3年生实生苗为材料，通过盆栽控制试验设置连续多级土壤含水量，在土壤相对含水量（RWC）与毛竹实生苗光合生理指标间建立回归模型，运用其光合特性作为评判依据，对毛竹实生苗培育管理过程中的土壤水分有效性及生产力进行分级与评价。结果表明：当RWC在77.01%时毛竹实生苗最大净光合速率（P_max）达到峰值（9.56 μmol·m^-2·s^-1）;光合有效辐射强度（PAR）在1000 μmol·m^-2·s^-1时，P_n补偿水分点（RWC P_n=0）为17.41%，净光合速率最大值（P_n-max=9.36 μmol·m^-2·s^-1）出现在RWC_Pn-max=78.19%；最大水分利用效率（WUE_max=4.55 mmol·mol^-1）对应的RWC为64.28%，水分利用效率均值（WUE_ave=2.62 mmol·mol^-1）分别出现在RWC=34.25%、94.32%，水分利用效率（WUE）正负转折点在RWC=18.17%处;以不同土壤水分下的毛竹净光合速率（P_n）及水分利用效率（WUE）值作为“产”、“效”分级评判依据，3年生毛竹实生苗高产高效水RWC为44.69%～94.32%，中产高效水RWC为34.25%～44.69%，低产低效水RWC为17.41%～29.11%，RWC>94.32%为高产中效水，RWC<17.41%为无产无效水。本研究提出了毛竹实生苗培育的土壤水分利用参数，为毛竹育苗过程中的水分高效管理提供参考。

关键词: 毛竹, 土壤相对含水量, 光合特性, 分级与评价

Abstract: A pot experiment was conducted with a multilevel soil water content gradient, to examine the relationship between soil relative water content (RWC) and photosynthetic physiological indices of three-year-old Moso bamboo (Phyllostachys edulis) seedlings. With photosynthetic physiological parameters as judging criteria, soil water availability and productivity in the course of cultivation and management of P. edulis seedlings were graded and evaluated. The results showed that maximum net photosynthetic rate (P_max) of P. edulis peaked (9.56 μmol·m^-2·s^-1) at the RWC of 77.01%. At the photosynthetically active radiation intensity (PAR) of 1000 μmol·m^-2·s^-1, the P_n compensation water point (RWC_Pn=0) was 17.41%, and the maximum net photosynthetic rate (P_n-max=9.36 μmol·m^-2·s^-1) occurred at RWC_Pn-max=78.19%. The maximum water use efficiency (WUE_max =4.55 mmol·mol^-1) corresponded to a RWC of 64.28%. The average water use efficiency (WUE_ave=2.62 mmol·mol^-1) appeared at RWC=34.25% and 94.32%, respectively. The positive and negative turning point of water use efficiency (WUE) was at RWC=18.17%. P_n and WUE values of P. edulis under different soil moisture were used as the basis to evaluate “yield” and “efficiency”. The results showed that, when the RWC ranged from 44.69% to 94.32%, the productivity level of three-year-old seedlings of P. edulis was high-yield and high-efficiency. The productivity level was intermediateyield and high-efficiency when the RWC was 34.25%-44.69%. Meanwhile, RWC=17.41%-29.11% meant low-yield and low-efficiency productivity level. RWC >94.32% meant that the productivity level was high-yield and intermediate-efficiency, while RWC <17.41% made the production level non-productive and ineffective. This study puts forward the soil water utilization parameters for the cultivation of P. edulis seedlings, which provides a reference for efficient water management in the cultivation of P. edulis seedlings.

Key words: Moso bamboo (Phyllostachys edulis), soil relative water content, photosynthetic characteristics, classification and evaluation.

景雄, 范少辉, 蔡春菊, 刘广路, 王树梅, 罗慧莹, 刘淼. 基于光合特性的毛竹实生苗土壤水分有效性及生产力分级[J]. 生态学杂志, 2021, 40(10): 3088-3097.

JING Xiong, FAN Shao-hui, CAI Chun-ju, LIU Guang-lu, WANG Shu-mei, LUO Hui-ying, LIU Miao. Classification of soil water availability and productivity of Moso bamboo (Phyllostachys edulis) seedlings based on photosynthetic characteristics.[J]. Chinese Journal of Ecology, 2021, 40(10): 3088-3097.

[1]	陈本学, 李雁冰, 张慧斌, 王娅婷, 李文博. 切根贴膜对豫东平原农田防护林白花泡桐光合能力的影响 [J]. 生态学杂志, 2024, 43(4): 1008-1016.
[2]	周欢, 韦如萍, 李吉跃, 苏艳, 胡德活, 郑会全. 光照强度对乐昌含笑幼苗生长及光合特性的影响 [J]. 生态学杂志, 2024, 43(3): 709-715.
[3]	申景昕, 范少辉, 刘广路, 魏松坡. 毛竹林带采伐宽度对土壤碳氮磷含量及计量比的影响 [J]. 生态学杂志, 2023, 42(8): 1851-1857.
[4]	李承基, 官凤英, 郑亚雄, 周潇. 配比施肥对带状采伐毛竹林林下植被多样性的影响 [J]. 生态学杂志, 2023, 42(4): 796-803.
[5]	赵建诚, 蔡春菊, 徐军, 刘淼, 杨振亚, 李琴. 毛竹林下套种大球盖菇对中小型土壤动物群落特征的影响 [J]. 生态学杂志, 2023, 42(4): 920-925.
[6]	王琦, 许艳丽, 闫鹏, 董好胜, 张薇, 卢霖, 董志强. 聚天门冬氨酸和壳聚糖复配剂对谷子光合特性、氮素利用率及产量的影响 [J]. 生态学杂志, 2023, 42(3): 643-652.
[7]	偶春, 程雯慧, 王泽璐, 沈钟媛, 姚侠妹. 硅对镉胁迫下香椿幼苗光合特性和离子吸收的影响 [J]. 生态学杂志, 2023, 42(2): 333-341.
[8]	杨阳, 赵鸿, 唐国瑛, 黄小燕, 王鹤龄. 半干旱区马铃薯叶片光合生理参数的土壤水分阈值效应 [J]. 生态学杂志, 2023, 42(11): 2622-2629.
[9]	高歌, 李正才, 葛晓改, 黄润霞, 李爱博. 施氮对干旱胁迫下毛竹幼苗生物量和根系形态的影响 [J]. 生态学杂志, 2022, 41(5): 858-864.
[10]	余明龙, 黄露, 郑殿峰, 冯乃杰, 牟保民, 刘美玲. 外源调环酸钙对盐碱胁迫下大豆幼苗生长及生理特性的影响 [J]. 生态学杂志, 2022, 41(4): 683-692.
[11]	李木子, 陈雅昕, 李秋丽, 张倩, 殷有, 朱文旭, 周永斌. 辽西北风沙地区不同无性系桑树抗旱性 [J]. 生态学杂志, 2022, 41(2): 256-262.
[12]	田露, 郭晓霞, 苏文斌, 黄春燕, 李智, 韩康, 菅彩媛, 薛春雷, 潘天遵. 不同改良材料对苏打盐碱化耕地甜菜叶片光合特性、干物质积累和分配的影响 [J]. 生态学杂志, 2022, 41(12): 2461-2470.
[13]	彭思利, 王晓燕, 李剑, 夏大娟, 葛之葳, 薛建辉. 外生菌根真菌接种对干旱胁迫下构树幼苗生长及光合特性的影响 [J]. 生态学杂志, 2021, 40(9): 2719-2726.
[14]	杨超, 付鑫, 刘文清, 王俊. 补施氮肥对秸秆覆盖条件下旱作冬小麦光合特性及产量形成的影响 [J]. 生态学杂志, 2021, 40(4): 1012-1020.
[15]	韩宇婷, 米俊珍, 陈晓晶, 徐忠山, 刘景辉, 薛国兴. 秆锈病菌侵染对燕麦光合特性的影响 [J]. 生态学杂志, 2021, 40(11): 3633-3639.

基于光合特性的毛竹实生苗土壤水分有效性及生产力分级

Classification of soil water availability and productivity of Moso bamboo (Phyllostachys edulis) seedlings based on photosynthetic characteristics.

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

编辑推荐

Metrics

本文评价