南洛河流域洛南盆地表土孢粉与植被的关系

来源 :地理学报 | 被引量 : 9次 | 上传用户:zhuxianwei00
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
选取南洛河上游洛南盆地10种植被类型下40处样点表土苔藓开展孢粉与植被关系的研究。结果表明,表土中孢粉组成能很好地反映植被类型。森林表土中乔木植物花粉含量平均值大于40%,且有较高含量的中华卷柏孢子;疏林草原、灌丛群落中乔木植物花粉平均含量分别为13.2%和16.6%,灌木植物花粉相对草丛群落含量较高;草丛群落和农田中乔木花粉平均含量均80%,灌木植物花粉<1%。洛南盆地表土孢粉总浓度平均为1.42×105粒/g,与植被覆盖度关系较弱,而与植被类型有一定联系,能辅助植被类型的
其他文献
Soil erodibility is an important index to evaluate the soil sensitivity to erosion. The research on soil erodibility is a crucial tache in understanding the mec
在分析了常规遥感技术在建筑物损毁评估应用中存在不足的基础上,介绍了最近几年发展起来的倾斜摄影技术的基本原理、数据获取和信息提取的情况,概述了倾斜摄影技术在建筑物损
The Boao coastal system along the eastern coast of Hainan Island is a dynamic delta-tidal inlet-barrier formed during the late Holocene. The delta developed ins
Coastal salt-marshes represent an important coastal wetland system. The total area of coastal wetlands exceeds 5000 km2 in Jiangsu Province, China, but it is de
Here we report our recent magnetic fabric investigation of loess deposition in Shagou section, located at the northeastern Qilian Mountains, the northeastern ri
Variation characteristics of temperature and precipitation in January and July and annual mean temperature and annual precipitation are analyzed with the help o
Using geographic information system (GIS) techniques and the newest seasonal and annual average precipitation data of 679 meteorological stations from 1971 to 2
The role of remote sensing in phenological studies is increasingly regarded as a key to understand large area seasonal phenomena. This paper describes the appli
The aim of this paper is to investigate the feasibility of using Landsat TM data to retrieve leaf area index (LAI). To get a LAI retrieval model based ground re
青海湖江西沟遗迹是青藏高原东北缘一处有连续地层的重要细石器文化遗存,对其人类活动指标(石器、动物碎骨、陶片等)与环境指标(磁化率、色度、孢粉及集成结果)对比分析表明: