|
|||||
|
|
| 养分胁迫下的夏玉米生理反应与光谱特征 | |
| 引用本文： | 程一松、胡春胜,王成,于贵瑞.养分胁迫下的夏玉米生理反应与光谱特征[J].资源科学,2001,23(6):54-58. |
| 作者姓名： | 程一松、胡春胜 王成 于贵瑞 |
| 作者单位： | 1. 中国科学院石家庄农业现代化研究所,石家庄,050021 2. 中国科学院遥感应用研究所,北京,100101 3. 中国科学院地理科学与资源研究所,北京,100101 |
| 基金项目： | 中国科学院知识创新项目专题(G2000077805-01)和“百人计划”生态系统管理的基础生态学过程研究项目资助. |
| 摘 要： | 在夏玉米整个生育期的不同阶段，测定其叶片光谱反射率，并结合其生物物理参数的变化进行分析。结果表明，叶绿素浓度、叶面积指数等生物物理参数，可以反映作物生长发育的特征动态，也是反映物质生产和反射光谱关系的中间枢纽，通过叶绿素浓度含量与叶片反射率光谱和一阶导数光谱数据的相关分析，可以看出全生育期和不同生育阶段的叶绿素敏感波段范围。 |
| 关 键 词： | 养分胁迫、高光谱、夏玉米、生理反应 |
| 文章编号： | 1007-7588(2001)06-0054-05 |
| 修稿时间： | 2001年6月30日 |
PHYSIOLOGICAL RESPONSE AND SPECTRAL CHARACTERISTICS OF SUMMER CORN UNDER NUTRIENT STRESS CONDITION |
|
| CHENG Yi song ,HU Chun sheng WANG Cheng YU Gui rui.PHYSIOLOGICAL RESPONSE AND SPECTRAL CHARACTERISTICS OF SUMMER CORN UNDER NUTRIENT STRESS CONDITION[J].Resources Science,2001,23(6):54-58. | |
| Authors: | CHENG Yi song HU Chun sheng WANG Cheng YU Gui rui |
| Institution: | CHENG Yi song 1,HU Chun sheng 1 WANG Cheng 2 YU Gui rui 3 |
| Abstract: | Three nutrient elements (N, P, K) at different level are incorporated into the experimentation of nutrient balance from 1997, and reflectance spectrum and physiological parameters for leaves of summer corn are measured within the whole growing period in 2000. Then, the hyper spectral characteristics of summer corn under nutrient stress condition are examined. Moreover, the relationship between the characteristics of reflectance spectrum and the biophysical parameters are analyzed. As shown in the results, the summer corn has special characteristics of physiological and agricultural responses; besides, chlorophyll is an important indicator for corm productivity. Owing to the correlative relationship between the reflectance spectra, the first derivative spectra of canopies and the chlorophyll content of summer corn leaves, it is possible to distinguish the sensitive wave band of nutrient stress in different growing phase. And such correlation can be used to estimate the nutrient stress condition. It can be conclude that, the hyper spectral remote sensing data has a great significance in the research of nutrient status and crop yield. |
| Keywords: | Nutrient stress Hyper spectral Summer corn Physiological response |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |
| 点击此处可从《资源科学》浏览原始摘要信息 | |
| 点击此处可从《资源科学》下载免费的PDF全文 | |