不同土地覆盖类型上植被生长的最适温度

doi:10.3724/SP.J.1047.2014.00001

地球信息科学学报 ›› 2014, Vol. 16 ›› Issue (1): 1-7.doi: 10.3724/SP.J.1047.2014.00001

• 本期要文(可全文下载) • 下一篇

不同土地覆盖类型上植被生长的最适温度

刘正佳^1,2, 刘纪远¹, 邵全琴¹

1. 中国科学院地理科学与资源研究所, 北京 100101;
2. 中国科学院大学, 北京 100049

收稿日期:2013-04-17 修回日期:2013-05-03 出版日期:2014-01-05 发布日期:2014-01-05
作者简介:刘正佳（1986-），男，博士生，主要从事LUCC过程和生态模型研究。E-mail：liuzj@lreis.ac.cn
基金资助:
国家“973”计划项目（2010CB950902）。

Optimum Temperature of Vegetation Growth for Various Land Cover Types in China

LIU Zhengjia^1,2, LIU Jiyuan¹, SHAO Quanqin¹

1. Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China;
2. University of Chinese Academy of Sciences, Beijing 100049, China

Received:2013-04-17 Revised:2013-05-03 Online:2014-01-05 Published:2014-01-05

摘要/Abstract

摘要：

生态过程模型已成为探测陆地植被对气候变化响应的重要手段之一，最适温度作为模型模拟过程中的一个重要参数，其准确性对模型模拟结果有重要影响。本研究以2001-2010年MODIS-NDVI、2001-2010年气象台站温度数据，以及2000年土地覆盖数据，结合前人研究的成果，将最适温度定义为适宜植物生长温度上下限之间所有月均温度的均值，并从植被类型角度出发，探讨不同植物生长的最适温度，以期为生态过程模型的改进提供参数优化方案。研究表明，不同植被类型植被生长的最适温度存在较大差异。常绿针叶林、常绿阔叶林、落叶针叶林、落叶阔叶林、混交林、灌丛、草地、农田和建设用地的最适温度，依次为22.4℃、23.4℃、14.1℃、19.5℃、20.7℃、22.6℃、15.4℃、24.8℃和25.6℃。

关键词: 最适温度, NDVI, 植被类型, MODIS, 生态模型

Abstract:

Ecological model basing on process is an important method to explore questions of climate change which have been a hot topics concerned by scientists. However, the accuracy of a model is key to the accuracy of simulation results. As an important process parameter, the accuracy of optimum temperature to the simulation results has noteworthy influence in the model. In this study, MODIS–NDVI from 2001 to 2010, daily mean temperature from 2001 to 2010 and land cover in 2000 were adopted to extract optimum temperature of vegetation growth for various land cover types in China. In combination with the existing researches, the optimum temperature in this study was defined as all the monthly mean temperature within bounds of suitable temperature for vegetation growth, according to that, generally speaking, plant grow well at the range of suitable temperature. Based on the definition, we explored the optimum temperature of different vegetation types from the perspective of land cover. After analyzing the correlation between corresponding NDVI and temperature for different vegetation types, the optimum temperature of different vegetation types, which could be used to advance parameters optimization scheme for ecological process model, were acquired by overlay analysis from NDVI, temperature and land cover based on the above analysis. The results from this study showed that a significant difference in terms of optimum temperature existed in different vegetation types. The optimum temperature of vegetation types mainly distributed in northern China and Qinghai-Tibet Plateau, the value of which are generally lower than 20℃, are lower than that of vegetation types in southern China. The optimum temperature of evergreen coniferous forest, evergreen broad-leaved forest, deciduous coniferous forest, deciduous broad-leaved forest, mixed forest, shrub, grassland, crop and residents land were 22.4℃, 23.4℃, 14.1℃, 19.5℃, 20.7℃, 22.6℃, 15.4℃, 24.8℃ and 25.6℃ respectively.

Key words: vegetation type, NDVI, optimum temperature, ecological model, MDOIS

刘正佳, 刘纪远, 邵全琴. 不同土地覆盖类型上植被生长的最适温度[J]. 地球信息科学学报, 2014, 16(1): 1-7.DOI:10.3724/SP.J.1047.2014.00001

LIU Zheng-Jia, LIU Ji-Yuan, SHAO Quan-Qin. Optimum Temperature of Vegetation Growth for Various Land Cover Types in China[J]. , 2014, 16(1): 1-7.DOI:10.3724/SP.J.1047.2014.00001

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不同土地覆盖类型上植被生长的最适温度

Optimum Temperature of Vegetation Growth for Various Land Cover Types in China

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