| 摘要: |
| 利用多源卫星遥感数据，对贵州赤水河流域2021年生态环境状况进行监测，定量评估赤水河流域的生态环境状况。结果表明：1）赤水河流域生态环境状况EI指数为68.15，生态环境状况综合评价为良；2）赤水河流域贵州段的土地利用类型主要以林地和耕地为主，流域监测区内生境质量为I级，生物多样性丰富；3）流域NDVI平均值0.42，植被覆盖度高，固土护坡、水源涵养能力较强；4）流域雨水充沛，河网密布，水网密度高达6.8；5）流域土地坡度起伏大，监测区内中度以上土地侵蚀强度的土地面积约占49%。相比，流域污染负荷指数较低，生态环境治理成效持续显现。 |
| 关键词: 生态环境；土地利用；遥感监测；植被指数 |
| DOI： |
| 投稿时间：2022-10-12修订日期：2023-07-03 |
| 基金项目:贵州省科技计划项目（黔科合基础-MK[2022]一般278） |
|
| Analysis of Ecological Environment in Chishui River by Remote Sensing |
| lihuixuan,Huanglinfeng,Hufeng,Songshanhai,Liuyun |
| (Ecological meteorology and satellite remote sensing center of Guizhou province) |
| Abstract: |
| Base on the satellite remote sensing data, the ecological environment in Chishui River at 2021 were studied. The results show that: 1)The EI index of Chishui river was 68.15, shows that the ecological environment of Chishui river was in good condition; 2)The land use status of Chishui river are mainly composed of forest land and farmland ,habitat quality was grade I,and biodiversity was rich; 3)NDVI averages was 0.42, It is clear that ,the high vegetation coverage play an important role in sand-fixation and soil and water conservation;4)Regional rainwater energetic, water density up to 6.8；5）The terrain is rugged, Study area above moderate erosion intensity of land area accounts for 49%, compared to the basin pollution load index is low, remarkable achievements have been made in ecological environment control. |
| Key words: Ecological environment; Land use; Remote sensing monitoring; Vegetation index |
