悦月直播免费版app下载 - 悦月直播app大全下载最新版本免费安装软件

寧南山區(qū)長時間序列植被覆蓋變化研究

  • 打印
  • 收藏
收藏成功


打開文本圖片集

摘 要:以寧南山區(qū)為研究區(qū)域,對研究區(qū)1990—2020年各年度NDVI及植被覆蓋度進行分析。結(jié)果表明,1990—2020年研究區(qū)的NDVI整體呈升高趨勢,植被覆蓋度呈現(xiàn)由低植被覆蓋度向中高植被覆蓋度演變的態(tài)勢;植被覆蓋度較高的區(qū)域大部分位于研究區(qū)南部,植被覆蓋度最高的區(qū)域為六盤山區(qū)。

關(guān)鍵詞:長時間序列; NDVI; 植被覆蓋度; 時空分布; 動態(tài)變化; 寧南山區(qū)

中圖分類號:TP79; X171.1    文獻標識碼:A      文章編號:1002-204X(2023)01-0033-06

doi:10.3969/j.issn.1002-204x.2023.01.010

Study on Changes in Long Time Series of Vegetation Coverage

in Southern Ningxia Mountain Area

Ma Dawei1,2, Wei Caiyong1,2*, Wang Wenlong1,2, Yang Yating1,2, Han Fen1,2, Yang Yang1,2

(1.Ningxia Remote Sensing Survey Institute, Yinchuan, Ningxia 750021; 2.Ningxia Data and Application Center of High Resolution Earth Observation System, Yinchuan, Ningxia 750021)

Abstract Taking the southern mountain area of Ningxia as the study area, this paper analyzed the NDVI and vegetation coverage from 1990 to 2020. The results showed that the NDVI during the period showed an overall upward trend, and the vegetation coverage showed a trend of evolution from low vegetation coverage to medium and high vegetation coverage. Most of the areas with high vegetation coverage were located in the south of the study area, and the highest vegetation coverage was in Liupanshan Mountain Area.

Key words Long time series; NDVI; Vegetation coverage; Spatiotemporal distribution; Dynamic changes; Southern Ningxia mountain area

植被是自然地域綜合體(自然生態(tài)系統(tǒng))的要素和環(huán)境的重要組分,植被覆蓋度是描述生態(tài)環(huán)境的重要基本參數(shù),通過建立植被覆蓋度與植被指數(shù)之間的關(guān)系,進而估算植被覆蓋度,能夠較為客觀地反映某一區(qū)域植被覆蓋情況[1]。(剩余6856字)

monitor