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基于高清影像分层抽样技术在森林资源二类调查中的应用探索

作  者:
朱磊
关键词:
分层抽样;高清影像;森林资源调查;森林蓄积量;松阳县
摘  要:
在森林资源原有系统抽样基础上,利用高清影像,结合森林资源底图、经营档案等资料,对所有样地进行逐块判读,获取分层因子,确定各分层的类型和权重,按不同方案的样本量进行分层抽样,开展补充调查,统计不同方案的特征数,并进行对比分析.结果表明:采用高清影像分层抽样技术,可以大幅度减少调查样地数量,提高抽样精度,具有广泛的推广价值.
作  者:
ZHU Lei;Forest Inventory and Planning Institute of State Forestry Administration in East China;
单  位:
ZHU Lei%Forest Inventory and Planning Institute of State Forestry Administration in East China
关键词:
stratified sampling;;high-definition video;;forest resources survey;;forest volume;;Songyang County
摘  要:
On the basis of the original systematic sampling of forest resources, using high-definition imagery, combined with forest resources base maps,business archives,and other data,each sample plot is interpreted on a block-by-block basis to obtain stratification factors,and the types and weights of each stratum are determined. The sample size of the plan was sampled by stratification, supplemental surveys were conducted,and the number of features of different scenarios was calculated and compared. The results show that the adoption of high-definition image stratified sampling technology can significantly reduce the number of survey sites and improve the sampling accuracy, which has extensive popularization value.

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