Human Activity Intensity Assessment by Remote Sensing in theWater Source Area of the Middle Route of the South-to-NorthWater Diversion Project in China
Human Activity Intensity Assessment by Remote Sensing in theWater Source Area of the Middle Route of the South-to-NorthWater Diversion Project in China
复制标题
南水北调中线工程水源区人类活动强度遥感评估
DOI：
10.3390/su11205670
复制
发表时间：
2019
期刊：
影响因子：
3.9
通讯作者：
Bingfang Wu
中科院分区：
文献类型：
--
作者：
Wenwen Gao;Yuan Zeng;Yu Liu;Bingfang Wu
人类活动对自然生态环境产生了重大影响，可能导致土地覆被变化。陆面人类活动强度（HAILS）是区域尺度上人类活动的表征，利用遥感技术获取的土地覆盖数据可以有效地进行长期监测。以2000年、2010年和2015年为研究对象，基于土地覆被对冰雹指数进行量化，并分析其时空变化，以揭示人类活动对南水北调中线水源区水质的潜在影响。结果表明，2000 - 2015年，河北省冰雹总体呈减少趋势，但在水源地附近，冰雹总体呈增加趋势，最高增幅达78.4%。从2000年到2015年，显示冰雹高值的区域以30.8%的速度增加。在水体周围的河岸带，冰雹从2010年的0.68%上升到2015年的0.05%。根据冰雹的变化，它已被揭示，人类活动的增加，主要是在水体周围，可能会增加水污染的风险。
Human activities have significantly affected the natural eco-environment, which could lead to land cover changes. The human activity intensity of land surface (HAILS) represent human activity at the regional scale and can be monitored efficiently over a long term based on land cover data collected by remote sensing techniques. In this study, we quantify the HAILS index for 2000, 2010, and 2015 based on land cover, and analyze its temporal and spatial variation to illustrate the potential influence of human activities on the water quality in the water source area of the Middle Route of the South-to-North Water Diversion Project (MR-SNWDP). The results show that from 2000 to 2015, the HAILS decreased in general but increased with the highest increment of 78.4% around water resources. The area showing high values of HAILS increased at a rate of 30.8% from 2000 to 2015. In the riparian zone around the water body, the HAILS rose at an increment of 0.68% in 2010 to 0.05% in 2015. On the basis of the variation of the HAILS, it has been revealed that human activities, increased mainly around water bodies, may increase the risk of water pollution.