GONG Yu-xia,HE Kang-ning.Responses of Gas Exchange Parameters of Acer truncatum to Soil Water Varivation in a Semi-arid Region of the Loess Plateau[J].Research of Soil and Water Conservation,2007,14(01):242-245.
黄土半干旱区元宝枫叶片气体交换参数对土壤水分的响应
- Title:
- Responses of Gas Exchange Parameters of Acer truncatum to Soil Water Varivation in a Semi-arid Region of the Loess Plateau
- Keywords:
- Acer truncatum; net photosynthetic rate; transpiration rate; water use efficiency; soil water content
- 分类号:
- S152.7
- 摘要:
- 在黄土高原半干旱地区，采用Li-6400便携式光合测定仪和TDR水分仪，对不同土壤水分处理下的元宝枫（Acer truncatum）盆栽苗木生长的生理生态特征进行观测。研究了叶片的净光合速率（Pn）、蒸腾速率（Tr）、水分利用效率（WUE）、气孔导度（Gs）、胞间CO2浓度（Ci）和气孔限制值（Ls）对土壤含水量（SWC）的响应过程，并探讨了在不同土壤水分胁迫程度下影响元宝枫叶片光合作用变化的规律，最后确定了元宝枫树种在黄土区适宜生长的土壤水分调控标准。结果表明：元宝枫叶片净光合速率最高时的SWC为14%，蒸腾速率最高时的SWC为15%，叶片水分利用效率最高时的SWC为13%，8%的SWC是严重水分胁迫下叶片光合速率降低由气孔因素限制到非气孔因素限制的转折点。根据半干旱地区林业建设以提高林木水分利用效率为核心的土壤水分管理思想，确定元宝枫树种在该区最适宜生长的SWC为11%~15%。
- Abstract:
- Using a portable Li-6400 photosynthesis system and a TDR moisture meter, the physio-ecology characters of three-year-old spotted Acer truncatums under different soil water contents (SWC) was observed in a semi-arid region of the Loess Plateau. And the responses processes of some parameters to SWC were studied, including net photosynthetic rate, transpiration rate, water use efficiency (WUE), stomatal conductance, intercellular CO2 concentration and stomatal limiting value, and the effects of soil water stress on the photosynthesis and the fitting range of SWC of Acer truncatum were explored and got. The result showed that the optimum SWC keeping the highest net photosynthetic rate and transpiration rate of Acer truncatum was 14% and 15%, the best SWC to support the highest WUE was 12.8% and 8% of SWC was the turning point of the two factor, which lead to the decrease of net photosynthetic rate from stomatal limitation to non-stomatal limitation under severe water stress. According to the main intention of soil water management for enhancing WUE, it was concluded that the suitable range of SWC of Acer truncatum was within a range of 11%～15%.
参考文献/References:
[1] 李合生.现代植物生理学[M].北京:中国高等教育出版社,2001.85-183.
[2] 张光灿,刘霞,贺康宁,等.金矮生苹果叶片气体交换参数对土壤水分的响应[J].植物生态学报,2004,28(1):66-72.
[3] 许振株,周广胜,李晖.羊草叶片气体交换参数对温度和土壤水分的响应[J].植物生态学报,2004,28(3):300-304.
[4] 田晶会,贺康宁,王百田,等.黄土半干旱区侧柏气体交换和水分利用效率日变化研究[J].北京林业大学学报,2005,27(1):42-46.
[5] 田晶会,贺康宁,王百田,等.不同土壤水分下黄土高原侧柏生理生态特点分析[J].水土保持学报,2005,19(2):175-178,183.
[6] 田晶会,贺康宁,王百田,等.黄土半干旱区侧柏蒸腾作用及其与环境因子的关系[J].北京林业大学学报,2005,27(3):53-56.
[7] 顾振瑜,胡景江,文建雷,等.元宝枫对干旱适应性的研究[J].西北林学院学报,1999,14(2):1-6.
[8] 文建雷,刘志龙,王姝清.水分胁迫条件下元宝枫的光合特征及水分利用效率[J].西北林学院学报,2003,18(2):1-3.
[9] 王斌瑞.晋西黄土高原主要树种凋萎湿度的研究[J].北京林业大学学报,1988,10(4):17-23.
[10] 山仑.旱地农业中有限水高效利用的研究[J].水土保持研究,1996,3(1):8-13.
[11] Farquhar GD,Sharkey TD.Stomatal conductance and photosynthesis[J].Ann Rev Plant Physiol,1982,33:317-345.
[12] 许大全.光合作用气孔限制分析中一些问题[J].植物生理学通讯,1997,33(4):241-244.
[13] Tezara W,Lawlor D W.Effects of water stress on the bioch mistry and physiology of photosynthesis in sunflower[A].Mathis P.Photosynthesis:from Light to Biosphere[M].Hague:Kluwer Academy Publishers,1995.625-628.
[14] Kanechi M,Kunitomo E,Inagaki N,et al.Water stress affects on ribulose-1,5-bisphosphate carboxylase and its relationship to photosyntheis in sunflower leaves[A].Mathis P.Photosynthesis:from light to Biosphere[M].Hague:Kluwer Academy Publishers,1995:597-600.
[15] 山仑,陈培元.干旱区农业的自然生态学[M].北京:科学出版社,1998.1-17,159-173.
[16] 陈玉民,孙景生,肖俊夫.节水灌溉的土壤水分控制标准研究[J].灌溉排水,1997,16(1):24-28.
[17] 王斌瑞,王百田.黄土高原径流林业[M].北京:中国林业出版社,1996.10-20.
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备注/Memo
收稿日期:2006-3-21;改回日期:。
基金项目:国家自然科学基金（30371173）；教育科学技术研究项目（重大10407）
作者简介:巩玉霞（1981- ），女，北京林业大学硕士研究生，主要研究方向：水土保持，林业生态工程建设。