环境 DNA（eDNA）技术监测生物多样性的原理是什么？
What is the principle of environmental DNA for biodiversity monitoring?
生物脱落的皮屑、黏液和排泄物释放 DNA 到水、土中，采集后通过 metabarcoding 扩增测序识别物种。它可非侵入、快速地普查难以目测的物种。
Organisms shed DNA via skin, mucus, and waste into water or soil; sampling followed by metabarcoding amplification and sequencing identifies species. It enables non-invasive, rapid surveys of hard-to-see taxa.
难度 专业 · 适合 大众
CC BY 4.0 · 来源待核验 · Source pending review
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出处备注：著录仅给书名，无版次与年份；同一书名常对应多个版次，不臆测具体版本。
《Science》eDNA 方法学
Science eDNA methods
#eDNA #生物多样性 #监测
合成孔径雷达（SAR）为何能在多云多雨地区稳定监测地表？
Why can synthetic aperture radar stably monitor the surface in cloudy, rainy regions?
SAR 主动发射微波并接收回波，不受日照与云雨遮挡，可全天候成像。其相位还可用于毫米级地表形变（如地面沉降）监测。
SAR actively emits microwaves and records echoes, immune to daylight and cloud cover for all-weather imaging. Its phase also enables millimeter-level deformation monitoring such as land subsidence.
难度 专业 · 适合 初中(12-15)
CC BY 4.0 · 已核验 · Verified 2026-11-03
来源 · Source
J.F. Poland 主编,UNESCO《地下水开采引发的地面沉降研究指南》,1984;朱琳、宫辉力等,International Journal of Applied Earth Observation and Geoinformation, 2015(华北/北京平原InSAR沉降监测)
J.F. Poland ed., Guidebook to Studies of Land Subsidence due to Ground-Water Withdrawal, UNESCO, 1984; L. Zhu and H. Gong et al., International Journal of Applied Earth Observation and Geoinformation, 2015, InSAR monitoring of subsidence on the North China Plain.
独立核验依据 · Independent verification: 核验依据 1 OPENLIBRARY 标识 /works/OL19185527W：Guidebook to studies o
#合成孔径雷达 #微波 #形变监测
卫星可以监测哪些温室气体的柱浓度？
Which greenhouse gas column concentrations can satellites monitor?
星载光谱仪可反演 CO2、CH4 和 N2O 等的柱平均浓度，定位超排放点源。例如甲烷热点可指向油气泄漏。
Spaceborne spectrometers retrieve column-averaged CO2, CH4, and N2O, locating super-emitter point sources. Methane hotspots, for example, can point to oil and gas leaks.
难度 进阶 · 适合 大众
CC BY 4.0 · 来源待核验 · Source pending review
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出处备注：本题原挂出处与答案内容不符，已撤回；具体书目待补，暂不展示来源。
本题原挂出处与答案内容不符，已撤回；具体书目待补。
Previous citation withdrawn as unsupported for this answer; a specific source is pending.
#温室气体 #卫星遥感 #甲烷
应用 eDNA 进行生物多样性评估时存在哪些局限与偏差？
What limitations and biases affect eDNA-based biodiversity assessment?
eDNA 的检出受采集体积、降解速率、引物偏好和背景污染影响，难以定量丰度。距离—衰减关系复杂，需与形态学调查互补校准。
eDNA detection depends on sample volume, degradation, primer bias, and contamination, and poorly quantifies abundance. Distance-decay is complex, so it needs calibration against morphological surveys.
难度 进阶 · 适合 大众
CC BY 4.0 · 来源待核验 · Source pending review
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出处备注：著录仅给书名，无版次与年份；同一书名常对应多个版次，不臆测具体版本。
《Nature Sustainability》eDNA 综述
Nature Sustainability eDNA review
#eDNA #偏差 #生物多样性评估
无人机在环境监测中有哪些典型应用？
What are typical applications of drones in environmental monitoring?
无人机搭载多光谱与热成像传感器，可用于植被健康、水体污染与野生动物普查。其高分辨率与灵活起降适合小尺度精细调查。
Drones carrying multispectral and thermal sensors survey vegetation health, water pollution, and wildlife. Their resolution and flexible launch suit fine-scale local investigations.
难度 进阶 · 适合 高中(15-18)
CC BY 4.0 · 来源待核验 · Source pending review
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出处备注：著录仅给书名，无版次与年份；同一书名常对应多个版次，不臆测具体版本。
《环境科学》无人机遥感应用
Environmental Science China UAV remote sensing
#无人机 #环境监测 #高分辨率
遥感如何反演大气气溶胶浓度？
How does remote sensing retrieve atmospheric aerosol concentration?
通过卫星传感器测量气溶胶对光的散射与吸收造成的辐射衰减，结合算法反演光学厚度。该数据用于评估 PM2.5 与气候强迫。
Satellite sensors measure radiative attenuation from aerosol scattering and absorption, then algorithms retrieve optical depth. The data inform PM2.5 estimates and climate forcing.
难度 进阶 · 适合 初中(12-15)
CC BY 4.0 · 已核验 · Verified 2026-10-04
来源 · Source
Seinfeld 与 Pandis《Atmospheric Chemistry and Physics》；美国环境保护署臭氧生成敏感性技术文件
Seinfeld and Pandis, Atmospheric Chemistry and Physics; U.S. EPA technical documents on ozone formation sensitivity
独立核验依据 · Independent verification: 核验依据 1 ISBN 978-1-119-22117-3 (2006, Wiley)
#气溶胶 #遥感反演 #PM2.5
夜光遥感数据如何被用于社会经济与环境研究？
How are nighttime light remote sensing data used in socioeconomic and environmental research?
卫星夜间灯光强度与 GDP、人口和能源消耗高度相关，可用于缺失统计地区的发展估算。结合电力消耗还可识别工业排放热点。
Satellite night-light intensity correlates strongly with GDP, population, and energy use, enabling development estimates where statistics are missing. Combined with power data it can flag industrial emission hotspots.
难度 进阶 · 适合 高中(15-18)
CC BY 4.0 · 已核验 · Verified 2026-11-04
来源 · Source
Zhou, Ma, Zhou, Xu,《Nighttime Light Derived Assessment of Regional Inequality of Socioeconomic Development in China》, Remote Sensing, 2015 (DOI: 10.3390/rs70201242)
Zhou, Ma, Zhou, Xu, 'Nighttime Light Derived Assessment of Regional Inequality of Socioeconomic Development in China', Remote Sensing, 2015, DOI: 10.3390/rs70201242
独立核验依据 · Independent verification: 核验依据 1 Crossref DOI 10.3390/rs70201242
#夜光遥感 #社会经济 #发展评估