| 多层随机拟合法测量样方植被覆盖度 |
| |
| 引用本文： | 金宝成,陈家胜,黄华,赖富钱,马金辉.多层随机拟合法测量样方植被覆盖度[J].兰州大学学报(自然科学版),2009,45(3). |
| |
| 作者姓名： | 金宝成 陈家胜 黄华 赖富钱 马金辉 |
| |
| 作者单位： | 兰州大学资源环境学院,兰州,730000 |
| |
| 基金项目： | 国家基础科学人才培养基金，兰州大学本科教学质量工程专项经费支持计划高年级本科生创新能力支持项目 |
| |
| 摘 要： | 应用普通数码相机,以兴隆山国家级自然保护区为研究区域,在多层拟合法基础上,提出了多层随机拟合法.通过理论模型推导得出该方法误差大小由照片拍摄点数目决定;再利用实测植被覆盖度数据得出了误差-照片数目曲线,确定了误差与照片拍摄点数目的定量化关系.在满足绝对误差小于0.05的前提下,野外测量的照片拍摄点数目分别至少为:森林15个、灌丛15个、草地10个.该方法快速且精度较高,能够满足野外测量需要.
|
| 关 键 词： | 植被覆盖度 多层随机拟合法 误差-照片数目曲线 兴隆山 |
Multilayer random coupled model to observe vegetation cover in sample areas |
| |
| JIN Bao-cheng,CHEN Jia-sheng,HUANG Hua,LAI Fu-qian,MA Jin-hui.Multilayer random coupled model to observe vegetation cover in sample areas[J].Journal of Lanzhou University(Natural Science),2009,45(3). |
| |
| Authors: | JIN Bao-cheng CHEN Jia-sheng HUANG Hua LAI Fu-qian MA Jin-hui |
| |
| Institution: | School of Resources and Environmental Sciences;Lanzhou University;Lanzhou 730000;China |
| |
| Abstract: | Based on the multi-layer coupled model,a new model called random multi-layer coupled model was developed with the most commonly used digital camera,taking Xinglong Mountain National Nature Reserve as field work region.An analysis of this model found that error of this method was decided by number of photos taken.With the data on vegetation cover derived from the field work,an error-photo number curve was deduced,which showed that if an error of less than 0.05 was required,the number of photos taken should b... |
| |
| Keywords: | vegetation cover random multi-layer coupled method error-photo number curve Xinglong Mountain |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
