基于RS的石家莊市植被覆蓋度時空變化研究

Spatial-temporal Variation of Vegetation Coverage in Shijiazhuang City based on RS

Environment and Resource / 2024,6(3)：62-71 / 2024-10-17 164 155

查看全文 下載文檔

• 作者： 杜錦昊1      段興明2     
• 單位：

  1．河南理工大學測繪與國土信息工程學院，焦作；
  2．重慶科技大學石油與天然氣工程學院，重慶

• 關鍵詞： 植被覆蓋度；時空變化；遙感
• Vegetation coverage; Space-time change; Remote sensing
• 摘要： 石家莊市作為京津冀協同發展的重要節點城市，也是河北省的政治、經濟、文化和科技中心，其植被覆蓋度的時空變化能很好地反映城市的綠色發展狀況。本文選取Landsat系列數據，通過計算歸一化植被指數，結合像元二分法這一遙感估算模型來進行石家莊市2016—2022年植被覆蓋度的時空變化研究。結果顯示：石家莊市2016—2019年植被覆蓋大量減少，2019—2022年植被覆蓋趨于穩定。高植被覆蓋區的面積減少了3474.64km2，較高植被覆蓋區的面積增加了1228.68km2，中植被覆蓋區的面積增加了993.5km2，較低植被覆蓋區和低植被覆蓋區的面積也有所增長，分別增加了648.77km2和603.69km2。空間上表現為西高東低的特征。本文對石家莊市植被覆蓋度時空變化的研究為接下來該市進一步的綠色發展提供了科學的參考依據。
• As an important node city in the coordinated development of Beijing, Tianjin and Hebei Province, Shijiazhuang is also the political, economic, cultural and scientific center of Hebei Province. The spatio-temporal variation of vegetation coverage can well reflect the green development status of the city. This paper selects Landsat series data, calculates the normalized vegetation index, and combines the pixel dichotomy, a remote sensing estimation model, to study the spatial-temporal changes of vegetation coverage in Shijiazhuang from 2016 to 2022. The results show that the vegetation cover in Shijiazhuang decreased significantly from 2016 to 2019, and tended to be stable from 2019 to 2022. The area of high vegetation cover decreased by 3474.64km2, the area of high vegetation cover increased by 1228.68km2, the area of medium vegetation cover increased by 993.5km2, and the area of low vegetation cover and low vegetation cover also increased by 648.77km2 and 603.69km2, respectively. In space, it is high in the west and low in the east. The study of spatiotemporal variation of vegetation coverage in Shijiazhuang provides a scientific reference for the further green development of the city.
• DOI： https://doi.org/10.35534/er.0603007
• 引用： 杜錦昊．基于RS的石家莊市植被覆蓋度時空變化研究［J］．環境與資源，2024，6（3）：62-71．