龙子祠泉域不同下垫面陆面蒸散量的对比研究

龙子祠泉域是北方著名的岩溶大泉，目前泉流量衰减严重，评估泉域内涵养水源林工程对岩溶水增补效果成为一项重要研究课题。本文利用NOAA／AVHRR遥感数据，运用地表能量平衡系统（SEBS）模型并结合临汾气象站的实际观测数据（气温、气压、相对湿度和风速），反演了龙子祠泉域2014年4-10月的目均蒸散量和月均蒸散量，通过GIS的空间叠加对比分析了不同岩性和不同植被覆盖率条件下的陆面蒸散量特征。结果表明：碳酸盐岩地区陆面蒸散量与植被覆盖率之间呈正相关关系，而碎屑岩地区中等植被覆盖率的陆面蒸散量最低，在整体上碎屑岩地区的陆面蒸散量要高于碳酸盐岩地区。仅从陆面蒸散量的角度考虑，在碎屑岩地区保持中等的植被覆...

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Bibliographic Details
Published in中国岩溶 Vol. 36; no. 2; pp. 234 - 241
Main Author 申豪勇 梁永平 程洋 黄春玲
Format Journal Article
LanguageChinese
Published 中国地质科学院岩溶地质研究所/国土资源部、广西岩溶动力学重点实验室,广西桂林,541004 2017
Subjects
下垫面
地表能量平衡
岩溶水补给
蒸散量
龙子祠泉
岩溶水补给
下垫面
龙子祠泉
karst water supply
地表能量平衡
surface energy balance system(SEBS)
蒸散量
evapotranspiration
Longzici spring
surface condition
Online AccessGet full text
ISSN1001-4810
DOI10.11932/karst20170211

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Summary:龙子祠泉域是北方著名的岩溶大泉，目前泉流量衰减严重，评估泉域内涵养水源林工程对岩溶水增补效果成为一项重要研究课题。本文利用NOAA／AVHRR遥感数据，运用地表能量平衡系统（SEBS）模型并结合临汾气象站的实际观测数据（气温、气压、相对湿度和风速），反演了龙子祠泉域2014年4-10月的目均蒸散量和月均蒸散量，通过GIS的空间叠加对比分析了不同岩性和不同植被覆盖率条件下的陆面蒸散量特征。结果表明：碳酸盐岩地区陆面蒸散量与植被覆盖率之间呈正相关关系，而碎屑岩地区中等植被覆盖率的陆面蒸散量最低，在整体上碎屑岩地区的陆面蒸散量要高于碳酸盐岩地区。仅从陆面蒸散量的角度考虑，在碎屑岩地区保持中等的植被覆盖率将有利于增加岩溶水的入渗补给量，而在碳酸盐岩地区开展植树造林将提高陆面蒸散量，不利于降水入渗补给。
Bibliography:45-1157/P
surface energy balance system（SEBS）, evapotranspiration, surface condition, karst water sup-ply, Longzici spring
The Longzici spring system, one of the largest karst spring in North China, is located in the west- ern margin of the Linfen basin, covering an area of 2,250 km2. The springs discharge at an annually average rate of 4.81 m3/s derived from the records from 1955 to 2013. The karst water has been an important source for local water supply. But now the spring flow dramatically degrades because of climate change and human activities. Precipitation is the main source of the spring water recharge. This recharge occurs in two ways, namely the infiltration of precipitation over the carbonate rock areas and linear leakage of stream and river water. So it is very important to evaluate the recharge of karst water through an afforestation proiect. Based on NOAA/AVHRR data, the daily and monthly evapotranspiration （ET） of the Longzici spring are esti- mated during the period of 2014.4-2014.10, using surf
ISSN:1001-4810
DOI:10.11932/karst20170211