| 束管食螨瓢虫在柑桔树冠上分布的主分量分析 |
| |
| 引用本文： | 峗庆才.束管食螨瓢虫在柑桔树冠上分布的主分量分析[J].西南农业大学学报,1990(5). |
| |
| 作者姓名： | 峗庆才 |
| |
| 作者单位： | 西北农业大学植保系 |
| |
| 基金项目： | 国家自然科学基金，西南农业大学青年科学基金 |
| |
| 摘 要： | 本文应用主分量分析方法对束管食螨瓢虫(Stethorus chengi)及其猎物桔全爪螨(Panongchus citri McG.)在柑桔树冠的分布与环境的关系进行了研究。结果表明,光照强度是影响食螨瓢虫及其猎物分布的最重要环境因子,占全部信息量的55.45%,并与食螨瓢虫和桔全爪螨的分布呈正相关。叶片含水量和叶温系数,分别占总信息量的11.17%和10.03%。
|
| 关 键 词： | 食螨瓢虫 桔全爪螨 种间关系 空间格局 |
PRINCIPAL COMPONENT ANATYSIS FOR THE SPATIAL PATTERN OF LADY BETTLE Stethorus chengi ON CITRUS TREE |
| |
| Wei Qingcai.PRINCIPAL COMPONENT ANATYSIS FOR THE SPATIAL PATTERN OF LADY BETTLE Stethorus chengi ON CITRUS TREE[J].Journal of Southwest Agricultural University,1990(5). |
| |
| Authors: | Wei Qingcai |
| |
| Abstract: | Principal component analysis was used to detect the key factors affecting the distribution of lady bettle Stethorus chengi and its prey red spider mite on the periphery of a citrus tree. The results shows that sunlight is the most important factor affecting the distribution. The brighter the sunlight is, the more lady bettles and red spider mites exist. The second important factor is the capacity of water in leaves, occupying 11.17%. The third one is the temperature of leaves, occupying 10.03%. |
| |
| Keywords: | Stethorus chengi Panongchus citri interrelationship spatial pattern |
| 本文献已被 CNKI 等数据库收录！ |
