归一化植被指数在斯洛伐克农业干旱评价中的应用

Q4 Environmental Science

Ecocycles Pub Date : 2018-12-31 DOI:10.19040/ecocycles.v4i1.124

Veronika Zuzulová, J. Vido

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引用次数: 5

摘要

本文利用遥感数据对斯洛伐克农业干旱进行了评价。为此，2000年至2014年期间，从地区一级的MODIS光谱辐射计中获得了月归一化差异植被指数（NDVI）值。验证是基于根据有限的气候参数选择的12个地点与Palmer干旱严重程度指数（PDSI）的相关性。NDVI和PDSI值之间的相关关系很强（α≤0.1），主要发生在生长季节中期（6月至9月）。本文的目的是测试NDVI作为斯洛伐克农田干旱评估的合适工具。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Normalized difference vegetation index as a tool for the evaluation of agricultural drought in Slovakia

The paper deals with the evaluation of agricultural drought in Slovakia by remote sensing data. For this purpose, monthly normalized difference vegetation index (NDVI) values were derived from MODIS spectroradiometer at district level during the time period of 2000 to 2014. Verification was based on correlations with the Palmer drought severity index (PDSI) for twelve sites selected according to limited climatic parameters. Correlations showed a strong relationship (α ≤ 0.1) between NDVI and PDSI values, mainly in the middle of the growing season (June to September). The aim of the paper is testing NDVI as a suitable tool for drought assessment in an agricultural land in Slovakia.

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来源期刊

Ecocycles Environmental Science-General Environmental Science

CiteScore

1.00

自引率

0.00%

发文量

审稿时长

4 weeks