地球信息科学学报 ›› 2019, Vol. 21 ›› Issue (9): 1479-1479.doi: 10.12082/dqxxkx.2019.190117
王法溧1,2,3,何晓宇4,方泽兴4,魏显虎1,3,*(),叶虎平1,3,施令飞1,2,3
收稿日期:
2019-03-13
修回日期:
2019-05-16
出版日期:
2019-09-25
发布日期:
2019-09-24
通讯作者:
魏显虎
E-mail:weixh@radi.ac.cn
作者简介:
王法溧(1994-),女,黑龙江佳木斯人,硕士生,研究方向为大型工程环境遥感。E-mail: wangfl@radi.ac.cn
基金资助:
WANG Fali1,2,3,HE Xiaoyu4,FANG Zexing4,WEI Xianhu1,3,*(),YE Huping1,3,SHI Lingfei1,2,3
Received:
2019-03-13
Revised:
2019-05-16
Online:
2019-09-25
Published:
2019-09-24
Contact:
WEI Xianhu
E-mail:weixh@radi.ac.cn
Supported by:
摘要:
阿伯德尔国家公园位于号称肯尼亚“水塔”的阿伯德尔山脉上,是肯尼亚重要的旅游景区和珍稀动植物保护区,开展该地生态环境质量评价对肯尼亚水资源保护与可持续发展具有重要的意义。本研究基于1987-2018年的Landsat系列遥感数据,通过计算综合遥感生态指数RSEI,结合趋势线分析法对阿伯德尔国家公园近32年间生态环境质量变化进行客观定量分析。研究结果显示:① 1987-2018年研究区RSEI均值从0.62下降到0.51,生态环境质量退化的区域面积为551.52 km 2,占总面积的71.85%,表明在气候变化和人类活动影响下,1987-2018年研究区的环境状况呈恶化趋势;②环境质量显著恶化的区域主要分布于亚高山植被区和东部低海拔森林覆盖区,亚高山地区植被生态系统结构单一,稳定性差,对气候变化和人类活动更为敏感;而东部区域存在过度开发,非法砍伐森林等现象,且旅游开发强度大,环境恶化与人类活动密切相关。
王法溧,何晓宇,方泽兴,魏显虎,叶虎平,施令飞. 基于长时间序列遥感数据的阿伯德尔国家公园 生态环境质量评价[J]. 地球信息科学学报, 2019, 21(9): 1479-1479.DOI:10.12082/dqxxkx.2019.190117
WANG Fali,HE Xiaoyu,FANG Zexing,WEI Xianhu,YE Huping,SHI Lingfei. Assessment of the Eco-environmental Quality in Aberdare National Park based on Long-term Sequence Remote Sensing Data[J]. Journal of Geo-information Science, 2019, 21(9): 1479-1479.DOI:10.12082/dqxxkx.2019.190117
表1
4个分量指标(绿度、湿度、热度、干度)的主成分分析结果"
年份 | 指标 | 对PC1载荷值 | 对PC2载荷值 | 对PC3载荷值 | 对PC4载荷值 |
---|---|---|---|---|---|
1987 | NDVI | 0.68 | 0.35 | 0.64 | <0.01 |
WET | 0.66 | 0.08 | -0.75 | <0.01 | |
LST | -0.31 | 0.93 | -0.17 | <0.01 | |
SI | -0.01 | -0.01 | <0.01 | 1.00 | |
特征值 | 0.22 | 0.06 | <0.01 | <0.01 | |
贡献率/% | 84.71 | 12.07 | 3.20 | 0.02 | |
1995 | NDVI | 0.60 | 0.14 | 0.61 | <-0.01 |
WET | 0.59 | -0.80 | -0.33 | 0.11 | |
LST | -0.57 | -0.57 | 0.52 | 0.20 | |
SI | 0.26 | 0.11 | 0.20 | <0.01 | |
特征值 | 0.33 | 0.02 | <0.01 | <0.01 | |
贡献率% | 92.55 | 5.11 | 1.94 | 0.40 | |
2002 | NDVI | 0.64 | 0.66 | 0.40 | <0.01 |
WET | 0.56 | 0.05 | -0.82 | 0.03 | |
LST | -0.52 | 0.75 | -0.40 | 0.02 | |
SI | -0.01 | 0.02 | 0.03 | 1.00 | |
特征值 | 0.22 | 0.04 | 0.02 | <0.01 | |
贡献率/% | 80.88 | 13.51 | 5.51 | 0.10 | |
2010 | NDVI | 0.60 | 0.13 | -0.61 | 0.49 |
WET | 0.53 | 0.03 | 0.78 | 0.31 | |
LST | -0.51 | 0.93 | 0.08 | 0.20 | |
SI | -0.29 | -0.33 | 0.05 | <0.01 | |
特征值 | 0.24 | 0.03 | 0.01 | <0.01 | |
贡献率/% | 83.55 | 10.70 | 5.55 | 0.20 | |
2018 | NDVI | 0.58 | 0.26 | -0.77 | 0.07 |
WET | 0.57 | 0.15 | -0.42 | -0.69 | |
LST | -0.42 | 0.91 | 0.01 | -0.14 | |
SI | -0.40 | -0.30 | -0.49 | -0.70 | |
特征值 | 0.29 | 0.04 | <0.01 | <0.01 | |
贡献率/% | 81.68 | 12.50 | 5.51 | 0.31 |
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