Measuring and modeling stomatal conductance of cucumber crop in solar greenhouse in Northeast China
文献类型：期刊论文
| 作者 | Liu, ZX ; Zhang, ZK ; Wang, ZY ; Shu, QS |
| 刊名 | SCIENTIA HORTICULTURAE
 |
| 出版日期 | 2008 |
| 卷号 | 117期号:2页码:103-108 |
| 关键词 | stomatal conductance greenhouse Ball-Berry model partial least squares neural net analysis |
| ISSN号 | 0304-4238 |
| 通讯作者 | Liu, ZX, Chinese Acad Sci, Inst Appl Ecol, POB 417,72 Wenhua Rd, Shenyang 110016, Peoples R China |
| 中文摘要 | Stomatal conductance (G(s)), net photosynthesis (A(n)) and environmental variables were measured from October 2006 to January 2007 under stable soil water content in solar greenhouse in Northeast China. Seventy percent of the measurements were used to parameterize the G(s) models and others were used to validate these models. The diurnal variations of G(s) were bimodal curves in early period and unimodal curves in latter period. The Ball-Berry model was run by using either observed A(n) (B-Aobs-model) or predicted A(n) (B-Apred-model), which was simulated from environmental variables. The B-Apred-model performed less successful than statistical models because of the systematic error in predicting A(n). The B-Aobs-model performed well (explained 89% of observed G(s)) in the present study. Several statistical methodologies (Partial Least Square, PLS; Neural Net Analysis, NNA) were used to build models to predict G(s). PLS analysis found a high number of components, and the overall components explained 87% of the observed G(s) variability. We tested four neural net models and found radial basis function network (RBF) performed the best. In most situations, measurements of photosynthesis are not available and G(s) must be predicted from environmental data. In such case, we conclude that the PLS and NNA are more successful in predicting G(s) of cucumber crop in solar. greenhouse than the Ball-Berry model. (C) 2008 Elsevier B.V. All rights reserved. |
| 学科主题 | Horticulture |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000256980400003 |
| 公开日期 | 2011-09-23 |
| 源URL | [http://210.72.129.5/handle/321005/54447]  |
| 专题 | 沈阳应用生态研究所_沈阳应用生态研究所_期刊论文 |
| 推荐引用方式 GB/T 7714 | Liu, ZX,Zhang, ZK,Wang, ZY,et al. Measuring and modeling stomatal conductance of cucumber crop in solar greenhouse in Northeast China[J]. SCIENTIA HORTICULTURAE,2008,117(2):103-108. |
| APA | Liu, ZX,Zhang, ZK,Wang, ZY,&Shu, QS.(2008).Measuring and modeling stomatal conductance of cucumber crop in solar greenhouse in Northeast China.SCIENTIA HORTICULTURAE,117(2),103-108. |
| MLA | Liu, ZX,et al."Measuring and modeling stomatal conductance of cucumber crop in solar greenhouse in Northeast China".SCIENTIA HORTICULTURAE 117.2(2008):103-108. |
入库方式： OAI收割
来源：沈阳应用生态研究所
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