油菜绿色面积指数动态模拟模型

doi:10.17521/cjpe.2007.0113

摘要/Abstract

摘要：

准确模拟绿色面积指数是作物生长模拟模型可靠预测作物生长和产量的关键。该研究的目的是以生理生态过程为基础,构建油菜(Brassica napus)叶面积指数和角果面积指数变化动态的模拟模型。油菜叶面积指数模型综合考虑了库或源限制下的叶面积增长模式,其中库限制下叶面积指数的增长呈指数方程,且受到温度、水分和氮素因子的影响;源限制下叶面积指数增长用比叶面积法来模拟。油菜角果面积指数由比角果面积和角果干物重来决定。比叶面积和比角果面积均为生理发育时间的函数。利用不同类型品种的播期试验及氮肥试验资料分别对模型进行了校正和检验,结果表明模型能较好地模拟不同条件下油菜叶面积指数和角果面积指数。

关键词: 叶面积指数, 角果面积指数, 比角果面积, 比叶面积, 模拟模型, 油菜

Abstract:

Aims Accurate simulation of green area index is critical for reliable prediction of crop growth and yield using a crop growth model. Our study was undertaken to develop a process-based simulation model for predicting dynamic green area index, including leaf area index (LAI) and pod area index (PAI), in winter rapeseed (Brassica napus).

Methods Leaf area expansion was simulated through the relationship between LAI and source- or sink-limited dry matter. Daily leaf expansion rate increased in an S-shaped growth curve under source limitation, as influenced by temperature, water and nitrogen levels. Under the sink limitation, leaf area expansion was quantified on the basis of specific leaf area. Pod area was calculated from specific pod area and pod dry matter. The specific leaf area and specific pod area were determined from physiological development time and genotype. We calibrated and validated the model using experimental data from different varieties, sowing dates and nitrogen fertilization rates.

Important findings Root mean square error (RMSE) values of LAI were 11.15%, 15.57% and 16.87% at three N levels, and the average RMSE value of PAI in two varieties was 12.92%. Plotting the 1∶1 relationship between the simulated and observed values inLAI and PAI growth dynamics indicated a good fit. Our model of green area index in winter rapeseed shows a high accuracy and applicability under different conditions.

Key words: leaf area index (LAI), pod area index (PAI), specific pod area, specific leaf area, simulation model, rapeseed

汤亮, 朱艳, 曹卫星. 油菜绿色面积指数动态模拟模型. 植物生态学报, 2007, 31(5): 897-902. DOI: 10.17521/cjpe.2007.0113

TANG Liang, ZHU Yan, CAO Wei-Xing. A SIMULATION MODEL FOR DYNAMIC GREEN AREA INDEX IN WINTER RAPESEED (BRASSICA NAPUS). Chinese Journal of Plant Ecology, 2007, 31(5): 897-902. DOI: 10.17521/cjpe.2007.0113

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链接本文: https://www.plant-ecology.com/CN/10.17521/cjpe.2007.0113

https://www.plant-ecology.com/CN/Y2007/V31/I5/897

图/表 3

图1 不同油菜品种的SLA/SLAV与抽薹后累积生理发育时间的关系(试验 1) SLA:比叶面积 Specific leaf area SLAV: 特征比叶面积 Specific leaf area of variety PDTe: 抽薹后累积的生理发育时间 Physiological development time after elongation

Fig.1 Relationship between SLA/SLAV and PDTe after stem elongation for two rapeseed varieties (Experiment 1)

图2 不同油菜品种的SPA/SPAV与开花后累积生理发育时间的关系(试验 1) SPA: 比角果面积 Specific pod area SPAV: 特征比角果面积 Specific pod area of variety PDTf: 开花后累积生理发育时间 Physiological development time after flowering

Fig.2 Relationship between SPA/SPAV and PDTf after onset of flowering for two rapeseed cultivars (Experiment 1)

图3 不同油菜品种及施氮水平下主要生育期的LAI和PAI观测值与模拟值的比较(试验2) LAI: 叶面积指数 Leaf area index PAI: 角果面积指数 Pod area index NA: 实际氮浓度 Actual nitrogen rate

Fig.3 Comparison between observed and simulated LAI and PAI at main growth stages under different N rates and rapeseed cultivars (Experiment 2)

参考文献 20

[1]	Cao WX (曹卫星), Luo WX (罗卫红) (2003). Crop System Simulation and Intelligent Management (作物系统模拟及智能管理). Higher Education Press, Beijing,22-31. (in Chinese)
[2]	Colnenne C, Meynard JM, Reau R, Justes E, Merrien A (1998). Determination of a critical nitrogen dilution curve for winter oilseed rape. Annals of Botany, 81,311-317.
[3]	Diepenbrock D (2000). Yield analysis of winter oilseed rape ( Brassica napus L.): a review. Field Crop Research, 67,35-49.
[4]	Gabrielle B, Denoroy P, Gosse G, Justes E, Andersen MN (1998). A model of leaf area development and senescence for winter oilseed rape. Field Crops Research, 57,209-222.
[5]	Greenwood DJ, Lemaire G, Gosse G (1990). Decline in percentage N of C₃ and C₄ crops with increasing plant mass. Annals of Botany,425-436. URL PMID
[6]	Habekotte B (1997). Evaluation of seed yield determining factors of winter oilseed rape ( Brassica napus L.) by means of crop growth modelling. Field Crops Research, 54,137-151.
[7]	Justes E, Denoroy P, Gabrielle B, Gosse G (2000). Effect of crop nitrogen status and temperature on the radiation use efficiency of winter oilseed rape. European Journal of Agronomy, 13,165-177.
[8]	Ling QH (凌启鸿) (2000). Crop Population Quality (作物群体质量). Shanghai Scientific and Technology Press, Shanghai,402-415. (in Chinese)
[9]	Liu HL (刘后利) (1987). Rapeseed Practical Cultivation (油菜实用栽培学). Shanghai Scientific and Technology Press, Shanghai. (in Chinese)
[10]	Liu TM (刘铁梅), Cao WX (曹卫星), Luo WH (罗卫红), Guo WS (郭文善) (2001). Simulation on leaf area index in wheat. Journal of Triticeae Crop (麦类作物学报), 21(2),38-41. (in Chinese with English abstract)
[11]	Lizaso JI, Batchelor WD, Westgate ME (2003). A leaf area model to simulate cultivar-specific expansion and senescence of maize leaves. Field Crops Research, 80,1-17.
[12]	Michele R, Nicola L, Zina F (2003). Evaluation and application of the OILCROP-SUN model for sunflower in southern Italy. Agricultural Systems, 78,17-30.
[13]	Petersen CT, Jùrgensen U, Svendsen H, Hansen S, Jensen HE, Njelsen NE (1995). Parameter assessment for simulation of biomass production and nitrogen uptake in winter rape. European Journal of Agronomy, 4,77-89.
[14]	Spitters CJT, van Keulen H, van Kraalingen DWG (1989). A simple and universal crop growth simulator: SUCROS87. In: Rabbinge R, Ward S, van Laar HHeds. Simulation and System Management in Crop Protection. Simulation Monograph Vol.32, Pudoc, Wageningen, the Netherlands,147-181.
[15]	Tang L (汤亮) (2006). Study on Rapeseed Growth Simulation and Decision Support System (油菜生长模拟与决策支持系统研究). PhD dissertation, Nanjing Agricultural University, Nanjing,42-58. (in Chinese with English abstract)
[16]	Tang L (汤亮), Zhu Y (朱艳), Sun XF (孙小芳), Cao WX (曹卫星) (2007). Dynamic simulation model for photosynthesis and dry matter accumulation in rapeseed. Acta Agronomic Sinica (作物学报), 33,189-195.
[17]	Villalobos FJ, Hall AJ, Ritchie JT, Orgaz F (1996). OILCROP-SUN: a development, growth, and yield model of the sunflower crop. Agronomy Journal, 88,403-415.
[18]	Zhang LZ (张立桢), Cao WX (曹卫星), Zhang SP (张思平), Zhou ZG (周治国) (2004). A simulation model for morphogenis and LAI in cotton. Cotton Science (棉花学报), 16(2),77-83. (in Chinese with English abstract)
[19]	Zhu Y (朱艳), Hu JC (胡继超), Cao WX (曹卫星), Zhang JB (张佳宝) (2005). A decision support system for field water management based on crop growth model. Journal of Soil and Water Conservation (水土保持学报), 19,160-162. (in Chinese with English abstract)
[20]	Zhuang HY (庄恒扬), Cao WX (曹卫星), Jiang SX (蒋思霞), Wang ZG (王志刚) (2004). Simulation on nitrogen uptake and partitioning in crops. System Sciences and Comprehensive Studies in Agriculture (农业系统科学与综合研究), 20,5-11. (in Chinese with English abstract)