浙江省植被生态质量时空变化及其驱动因素分析

doi:10.6046/zrzyyg.2022070

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摘要

浙江省是“两山”理论的发源地,同时也是我国第一个生态省,研究该区域植被生态质量状况对生态文明建设具有重要的参考价值。该文结合多源遥感数据与气象观测资料,探究了浙江省2000—2020年植被生态质量的时空变化及其对气候因子与人类活动的响应。结果表明: ①2000—2020年,浙江省净初级生产力(net primary productivity,NPP)和植被覆盖度(fractional vegetation cover,FVC)呈上升趋势,植被“绿度”显著提升; ②2000—2020年,浙江省植被生态环境质量呈波动上升趋势,且山地区域的植被生态质量指数(vegetation ecological quality index,VEQI)明显高于盆地和平原地区; ③浙江省2000—2020年间VEQI变化的主导驱动因素是人类活动,仅在浙江省西南小部分区域气候因子占据主导因素。研究结果加深了对浙江省植被生态质量时空变化及其驱动因素的认识,对浙江省甚至全国其他地区的生态文明建设具有重要意义。

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	贺忠华

关键词 ：生态, 遥感, 净初级生产力, 植被, MODIS

Abstract：

Zhejiang Province is both the birthplace of the theory that both the mountain of gold and silver and the lushmountain with lucid waters are required (also known as the Two Mountains theory) and the first ecological province in China. The study on the vegetation ecological quality of Zhejiang can be used as an important reference for the construction of ecological civilization. Based on multi-source remote sensing data and meteorological observation data, this study investigated the spatio-temporal variations of vegetation ecological quality in Zhejiang during 2000—2020, as well as their response to climate factors and human activities. The results show that: ① Both the fractional vegetation cover (FVC) and the net primary production (NPP) in Zhejiang showed an upward trend during 2000—2020, with significantly increased vegetation greenness; ② The vegetation eco-environmental quality in Zhejiang showed a fluctuating upward trend during 2000—2020, with the vegetation ecological quality indices (VEQIs) of mountainous areas significantly higher than those of basin and plain areas; ③ The dominant factor driving the VEQI variations in Zhejiang during 2000—2020 is human activities, while climate factors occupied a dominant position only in some areas of southwestern Zhejiang. This study deepens the understanding of the spatio-temporal variations of vegetation ecological quality in Zhejiang and their driving factors and, thus, is of great significance for the construction of ecological civilization in Zhejiang and even other regions in China.

Key words： ecology remote sensing net primary production vegetation MODIS

收稿日期: 2022-03-03 出版日期: 2023-07-07

ZTFLH:

TP79

基金资助:浙江省气象局科技项目“高分系列卫星遥感影像处理及业务化应用研究”(2021YB07);浙江省气象局科技项目“浙江近海赤潮与金潮遥感识别及其暴发气象驱动模型构建”(2022ZD06);浙江省“尖兵”“领雁”研发攻关计划“重大自然灾害监测预警与风险防控技术、装备研发及应用示范-浙江省森林火灾动态监测预警和风险防控关键技术研究与应用示范”(2023C03190);浙江省自然科学基金项目“东海近海多源SAR影像风场反演及风能资源评估”(LQ21D060001);中国气象局卫星专项项目“山地生态气象遥感应用系统”(FY-3(03)-AS-12.13)

通讯作者: 何月,女(1981-),硕士,高级工程师,研究方向为城市和植被生态遥感。Email: heyue0925@163.com。

作者简介: 方贺,男(1990-),博士,高级工程师,研究方向为植被和海洋生态遥感。Email: fanghe_doc@163.com。

引用本文:

方贺, 张育慧, 何月, 李正泉, 樊高峰, 徐栋, 张春阳, 贺忠华. 浙江省植被生态质量时空变化及其驱动因素分析[J]. 自然资源遥感, 2023, 35(2): 245-254.
FANG He, ZHANG Yuhui, HE Yue, LI Zhengquan, FAN Gaofeng, XU Dong, ZHANG Chunyang, HE Zhonghua. Spatio-temporal variations of vegetation ecological quality in Zhejiang Province and their driving factors. Remote Sensing for Natural Resources, 2023, 35(2): 245-254.

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https://www.gtzyyg.com/CN/10.6046/zrzyyg.2022070 或 https://www.gtzyyg.com/CN/Y2023/V35/I2/245

Fig.1 浙江省2020年土地覆盖和数字高程及气象站点分布

Fig.2 2000—2020年浙江省植被NDVI和覆盖度趋势

Fig.3 浙江省2000—2020年FVC均值和改善率空间分布

Fig.4 2000—2020年浙江省植被NPP变化趋势

Fig.5 2000—2020年浙江省植被NPP均值和变化趋势空间分布

Fig.6 2000—2020年浙江省VEQI变化趋势

Fig.7 2000—2020年浙江省VEQI均值和变化趋势

Fig.8 不同年份模拟VEQI和观测VEQI散点图

Fig.9 浙江省VEQI变化驱动力因素分析

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