鄱阳湖流域植被总初级生产力时空变化特征及其气候驱动因子分析

doi:10.11983/CBB15122

植物学报 ›› 2016, Vol. 51 ›› Issue (5): 639-649.DOI: 10.11983/CBB15122

鄱阳湖流域植被总初级生产力时空变化特征及其气候驱动因子分析

姚炳楠¹, 陈报章^2,^3,^*(), 车明亮^2,³

¹陕西师范大学旅游与环境学院, 西安 710062
²中国科学院地理科学与资源研究所, 北京 100101
³中国科学院大学, 北京 100049

收稿日期:2015-07-07 接受日期:2016-02-22 出版日期:2016-09-01 发布日期:2018-08-10
通讯作者: 陈报章
作者简介:# 共同第一作者
基金资助:
国家自然科学基金(No.41271116/D010106)、科学院战略性先导科技专项(No.XDA05040403)、中国科学院地理科学与资源研究所“一三五”战略科技计划(No.2012ZD010)和科技基础性工作专项重点项目(No.20I3FYII0900)

Spatial-temporal Change of Gross Primary Productivity in the Poyang Lake Basin from 2000 to 2013 and Correlation with Meteorologic Factors

Yao Bingnan¹, Chen Baozhang^2,^3,^*(), Che Mingliang^2,³

¹ Tourism and Environmental Sciences of Shaanxi Normal University, Xi'an 710062
²Institute of Geographic Sciences and Natural Resources Research, the Chinese Academy of Sciences, Beijing 100101
³University of Chinese Academy of Sciences, Beijing 100049

Received:2015-07-07 Accepted:2016-02-22 Online:2016-09-01 Published:2018-08-10
Contact: Chen Baozhang
About author:# Co-first authors

摘要/Abstract

摘要： 植被总初级生产力(GPP)在陆地生态系统和全球气候变化研究中占有重要地位。基于MODIS GPP遥感数据产品、土地覆盖数据和气象观测数据, 对2000-2013年鄱阳湖流域GPP的时空变化及其与气候因素的关系进行了分析。结果表明, 鄱阳湖流域GPP的年总量变化介于88-2 493 gC·m^-2·a^-1之间, 平均值为1 361 gC·m^-2·a^-1; GPP年总量最小值出现在2002年, 最大值出现在2004年。GPP年际变化呈现明显的上下波动现象, 并呈缓慢增长趋势。近14年植被GPP年均值在空间分布上表现出由湖区中心向四周散射递增的特点, GPP显著增加的区域占全区总面积的40%, 主要分布在研究区东北部。相关性分析显示, 气温对GPP年际变化的影响程度强于降水。此外, 火灾对GPP的年际变化也具有一定的影响。该研究可为了解研究区的植被生长状况和生态环境质量提供参考。

Abstract: Study of vegetation gross primary production (GPP) is important for research of terrestrial ecosystems and global climate change. We used MODIS GPP products, land cover type data and meteorological data during 2000 to 2013 to analyze the spatial-temporal changes in GPP and the relation with climatic factors (air temperature and precipitation) in the Poyang Lake basin. The mean annual GPP was 1 361 gC·m^-2·a^-1 (range from 88 to 2 493 gC·m^-2·a^-1). GPP in 2002 had the lowest mean value and in 2004 the largest. With respect to spatial distribution, GPP values showed a radiative increasing trend pattern, from the center to peripheral areas of the lake valley. The area with obvious GPP increase accounted for 40%, mainly in the northeast of the study region. Correlation analysis showed that air temperature had greater effect than precipitation on changes in annual GPP. As well, fires had some impact on GPP. This study was useful for providing a basis to understand the vegetative growth and monitoring the ecological environment in the Poyang Lake basin.

姚炳楠, 陈报章, 车明亮. 鄱阳湖流域植被总初级生产力时空变化特征及其气候驱动因子分析. 植物学报, 2016, 51(5): 639-649.

Yao Bingnan, Chen Baozhang, Che Mingliang. Spatial-temporal Change of Gross Primary Productivity in the Poyang Lake Basin from 2000 to 2013 and Correlation with Meteorologic Factors. Chinese Bulletin of Botany, 2016, 51(5): 639-649.

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链接本文: https://www.chinbullbotany.com/CN/10.11983/CBB15122

https://www.chinbullbotany.com/CN/Y2016/V51/I5/639

图/表 12

图1 鄱阳湖流域和土地覆盖类型图 ENF: 常绿针叶林; EBF: 常绿阔叶林; DNF: 落叶针叶林; DBF: 落叶阔叶林; MF: 针阔混交林; SL: 灌丛; GL: 草地; WL: 永久性湿地; Crop: 农田; BSV: 裸露或稀少植被覆盖

Figure 1 The Poyang Lake basin and the distribution of land cover types ENF: Evergreen needleleaf forests; EBF: Evergreen broadleaf forests; DNF: Deciduous needleleaf forests; DBF: Deciduous broadleaf forests; MF: Mixed forests; SL: Shrubland; GL: Grassland; WL: Wetland; Crop: Cropland; BSV: Barren or sparsely vegetated

图2 MODIS GPP产品数据与GPP通量观测值的比较 (A) 年尺度上的比较; (B) 月尺度上的比较

Figure 2 Comparison of MODIS GPP with flux tower delive- red GPP (A) Yearly time scale; (B) Monthly time scale

表1 2000-2013年鄱阳湖流域植被年均GPP统计特征(gC·m-2·a-1)

Table 1 Statistical characteristics of annual GPP in the Poyang Lake basin area from 2000 to 2013 (gC·m-2·a-1)

Year	2000	2001	2002	2003	2004	2005	2006	2007	2008	2009	2010	2011	2012	2013	14 annual mean
Minimum	40	77	14	83	83	76	86	66	76	23	84	71	62	83	88
Maximum	2378	2526	2497	2508	2671	2435	2544	2603	2554	2630	2501	2458	2471	2494	2493
Mean	1247	1377	1410	1363	1470	1307	1388	1439	1348	1348	1328	1298	1342	1391	1361

图3 2000-2013年鄱阳湖流域GPP年总量组成特征(gC·m-2·a-1)

Figure 3 Characteristics of the total amount of GPP in the Poyang Lake basin from 2000 to 2013 (gC·m-2·a-1)

图4 2000-2013年鄱阳湖流域平均GPP变化的空间分布

Figure 4 Spatial distribution of the average of annual GPP in the Poyang Lake basin during 2000-2013

图5 鄱阳湖流域不同植被类型单位面积GPP对比 ENF、EBF、DNF、DBF、MF、SL、GL、WL和BSV同图1。

Figure 5 Comparison of GPP per unit area among different vegetation types in the Poyang Lake basin ENF, EBF, DNF, DBF, MF, SL, GL, WL and BSV see Figure 1.

图6 2000-2013年鄱阳湖流域植被GPP年际变化趋势的空间分布 (A) GPP年际变化趋势的空间分布; (B) 显著性检验P-值

Figure 6 Spatial distribution of trends of GPP in the Poyang Lake basin from 2000 to 2013 (A) Spatial distribution of trends of GPP; (B) P-value from significance test

图7 鄱阳湖流域GPP年总量的变化趋势

Figure 7 The trends of annual total GPP in the Poyang Lake basin

图8 2000-2013年鄱阳湖流域植被GPP年际变化与气温和降水量的关系

Figure 8 The correlation of interannual variability of GPP with temperature and rainfall in the Poyang Lake basin during 2000-2013

图9 2000-2013年鄱阳湖流域植被GPP与气温偏相关系数的空间分布 (A) 偏相关系数的空间分布; (B) 显著性检验P-值

Figure 9 Spatial distribution of partial correlation coefficient of GPP and temperature in the Poyang Lake basin during 2000-2013 (A) Spatial distribution of partial correlation coefficient; (B) P-value from significance test

图10 2000-2013年鄱阳湖流域植被GPP与降水量偏相关系数的空间分布 (A) 偏相关系数的空间分布; (B) 显著性检验P-值

Figure 10 Spatial distribution of partial correlation coefficient of GPP and rainfall in the Poyang Lake basin during 2000-2013 (A) Spatial distribution of partial correlation coefficient; (B) P-value from significance test

图11 江西省火灾受害森林面积与潘阳湖流域植被GPP年累积量之间的关系

Figure 11 The relationship between forest fire area and GPP in the Poyang Lake basin of Jiangxi province

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鄱阳湖流域植被总初级生产力时空变化特征及其气候驱动因子分析

Spatial-temporal Change of Gross Primary Productivity in the Poyang Lake Basin from 2000 to 2013 and Correlation with Meteorologic Factors

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