摘要
植被覆盖度是反映植物生长状况的重要参数,针对景区人类活动对植被覆盖变化的影响,论文以多个时期影像的归一化植被指数(NDVI),进行RGB合成,运用像元二分模型定量估算了抚仙湖禄充景区1996年-2016年植被覆盖度及其变化趋势,分析了抚仙湖禄充景区植被覆盖度变化,旨在为景区生态环境监测评价及管理提供科学依据。研究结果表明,禄充地区近20年来植被NDVI空间分布差异显著,植被覆盖面积与景区改建工作的波动趋势基本一致,进一步验证了利用多尺度NDVI监测植被覆盖度变化的可行性。
Vegetation coverage is an important parameter reflecting plant growth.In view of the impact of human activities on vegetation coverage change in scenic spots,and in order to provide a scientific basis for the ecological environment monitoring and management,the vegetation index of multiple periods of images and RGB synthesis are used to quantitatively estimate vegetation coverage and its changing trend in Luchong Scenic Spot of Fuxian Lake from 1996 to 2016 by using pixel dichotomy model.The results show that there are significant differences in spatial distribution of NDVI in Luchong area in recent 20 years,and the fluctuation trend of vegetation coverage and scenic area reconstruction is basically consistent,which further verifies the feasibility of using multi-scale NDVI to monitor the change of vegetation coverage.
作者
周玉岑
陈俊任
杨海兰
ZHOU Yucen;CHEN Junren;YANG hailan(Shangrao Geographic Information Center For Surveying&Mapping,Jiangxi Shangrao 334100 China;Jiangxi Nuclear 268 Surveying&Maping Academy,Shangrao 334700,China;School of Geography and Land Engineering,Yuxi Normal University,Yuxi 653100,China)
出处
《江西测绘》
2023年第1期26-28,60,共4页
JIANGXI CEHUI
基金
云南青年项目:2016FD112
关键词
植被覆盖度
时空变化
禄充景区
Vegetation Coverage
Temporal and Spatial Variation
Luchong Scenic Area
