红壤侵蚀区马尾松林碳储量估算的遥感植被指数选择——以长汀河田地区为例

doi:10.13249/j.cnki.sgs.2014.07.870

地理科学 ›› 2014, Vol. 34 ›› Issue (7): 870-875.doi: 10.13249/j.cnki.sgs.2014.07.870

红壤侵蚀区马尾松林碳储量估算的遥感植被指数选择——以长汀河田地区为例

曾宏达^1,²(), 徐涵秋¹(), 谢锦升², 黄绍霖¹, 陈文惠²

1. 福州大学环境与资源学院福州大学遥感信息工程研究所, 福建福州 350108
2. 福建师范大学地理科学学院湿润亚热带山地生态国家重点实验室培育基地, 福建福州 350007

收稿日期:2013-06-07 修回日期:2013-08-18 出版日期:2014-07-20 发布日期:2014-07-10
通讯作者: 徐涵秋，教授。E-mail:hxu@fzu.edu.cn E-mail:hongda_z@hotmail.com;hxu@fzu.edu.cn
作者简介:曾宏达（1983-），男，福建晋江人，讲师，博士研究生，主要从事生态遥感研究。E-mail:hongda_z@hotmail.com
基金资助:
国家“973”计划前期研究课题（2012CB722203）、福建省自然科学基金（2010J01138）资助

Selection of Vegetation Indices for Estimating Carbon Storage of Pinus massoniana Forest in a Reddish Soil Erosion Region: A Case Study in Hetian Area of Changting County, Fujian Province, China

Hong-da ZENG^1,²(), Han-qiu XU¹(), Jin-sheng XIE², Shao-lin HUANG¹, Wen-hui CHEN²

1. College of Environment and Resources, Fuzhou University; Institute of Remote Sensing Information Engineering, Fuzhou University; Fuzhou,Fujian 350108, China
2. College of Geographical Sciences, Fujian Normal University, State Key Laboratory of Humid Subtropical Mountain Ecology, Fuzhou,Fujian 350007, China

Received:2013-06-07 Revised:2013-08-18 Online:2014-07-20 Published:2014-07-10

摘要/Abstract

摘要：

以福建省长汀县河田地区为研究区,在野外样方生物量调查和典型植被光谱测定基础上,对比分析SPOT5影像8种植被指数与马尾松林（Pinus massoniana）碳储量关系,估算区域尺度马尾松林碳储量。结果表明,马尾松林冠层与林下植被芒萁（Dicranopteris dichotoma）在短波红外波段（SWIR）反射率区分明显。加入SWIR的修正的归一化植被指数（MNDVI）与森林碳储量回归决定系数最高,并有较小的均方根误差,同时可减少林下植被覆盖对马尾松林碳储量估算影响。生态恢复驱动下研究区平均碳储量增加到30.37 t/hm²。

关键词: 红壤侵蚀区, 长汀河田地区, 碳储量, 马尾松, 遥感植被指数

Abstract:

The Hetian area of Changting County in Fujian Province was selected as a case to examine the quantitative relationship between eight remote sensing vegetation indices (VIs) and the forest carbon storage in the Hetian area by plot sampling and analysis of biomass allometric equations and SPOT-5 imagery. We then estimated the carbon storage of Pinus massoniana forest for the area. The results show that the spectral reflectance of Pinus massoniana canopy and its understory vegetation, Dicranopteris dichotoma could be clearly distinguished in SWIR(Short Wave Infrared) band. The degree of agreement between the VI and the carbon storage of the forest are different among the eight used indices, with the MNDVI (Modified Normalized Difference Vegetation Index) having the highest R² value and second smallest RMSE value. The VI constructed with a SWIR band could reduce the overestimation in the forest’s carbon storage caused by the effects of understory vegetation. After 30 years’ effort of management to reduce soil loss in the area, particularly in the past 10 years, the ecologically restored carbon under the Pinus massoniana forest has reached to 30.37 t/hm² on average.

Key words: reddish soil erosion area, Hetian area of Changting County, carbon storage, Pinus massoniana, remote sensing vegetation index

中图分类号:

S771.8/Q948

曾宏达, 徐涵秋, 谢锦升, 黄绍霖, 陈文惠. 红壤侵蚀区马尾松林碳储量估算的遥感植被指数选择——以长汀河田地区为例[J]. 地理科学, 2014, 34(7): 870-875.

Hong-da ZENG, Han-qiu XU, Jin-sheng XIE, Shao-lin HUANG, Wen-hui CHEN. Selection of Vegetation Indices for Estimating Carbon Storage of Pinus massoniana Forest in a Reddish Soil Erosion Region: A Case Study in Hetian Area of Changting County, Fujian Province, China[J]. SCIENTIA GEOGRAPHICA SINICA, 2014, 34(7): 870-875.

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波段和植被指数	马尾松	芒萁
波段和植被指数	马尾松	不同生长状态均值	鲜活芒萁	枯鲜1∶1 混合	枯芒萁
NDVI	0.719	0.588	0.729	0.434	0.395
MNDVI	0.503	0.219	0.268	0.168	0.143

植被指数	方程	R²	Sig.	均方根误差
MNDVI	y =1.8657e^6.4235^x	0.826	<0.001	16.370
NDVI	y = 0.1138e^9.0124^x	0.733	<0.001	16.106
SAVI	y =0.1764e^12.306^x	0.522	<0.001	18.964
MSAVI	y =0.3171e^11.302^x	0.489	<0.001	19.165
DVI	y =0.5577e^15.043^x	0.300	<0.001	24.734
GNDVI	y =0.0053e^13.199^x	0.708	<0.001	16.209
SR	y =0.5312e^0.9479^x	0.714	<0.001	27.049
MSR	y= 0.7111e^3.5138^x	0.724	<0.001	16.858

植被指数	碳密度（t/hm²）	标准差（t/hm²）	范围（t/hm²）	区域碳储量（10⁷t）
MNDVI	30.370	28.125	257.999	5.797
NDVI	35.477	30.111	933.636	6.772
SAVI	40.933	54.279	1331.062	7.814
MSAVI	45.193	69.588	2015.930	8.627
DVI	37.701	62.683	3306.366	7.197
GNDVI	43.011	48.627	1899.355	8.210
SR	100.188	489.530	243770.630	19.125
MSR	58.823	102.640	9041.559	11.229

红壤侵蚀区马尾松林碳储量估算的遥感植被指数选择——以长汀河田地区为例

Selection of Vegetation Indices for Estimating Carbon Storage of Pinus massoniana Forest in a Reddish Soil Erosion Region: A Case Study in Hetian Area of Changting County, Fujian Province, China

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