globalchange  > 气候变化事实与影响
CSCD记录号: CSCD:5978252
论文题名:
20002012年淮南煤矿区植被净初级生产力的时空变化特征
其他题名: Spatial-temporal Variation of Vegetation Net Primary Productivity in Huainan Coal Mine Area from 2000 to 2012
作者: 陈广洲1; 李鑫海1; 焦利锋1; 汪家权2; 顾康康3
刊名: 生态环境学报
ISSN: 1674-5906
出版年: 2017
卷: 26, 期:2, 页码:196-203
语种: 中文
中文关键词: 净初级生产力(NPP) ; 淮南煤矿区 ; GLOPEM-CEVSA模型 ; 时空变化
英文关键词: Net primary productivity (NPP) ; Huainan mining area ; GLOPEM-CEVSA model ; spatial and temporal variation
WOS学科分类: PLANT SCIENCES ; ENVIRONMENTAL SCIENCES
WOS研究方向: Plant Sciences ; Environmental Sciences & Ecology
中文摘要: 采用基于遥感-生态过程耦合的GLOPEM-CEVSA模型模拟计算20002012年植被净初级生产力(NPP)数据,基于宏观角度从时空两方面分析其演变规律,分析年NPP总量与主要气候因子(年均气温、年降水量和年日照时数)之间的相关关系,为掌握淮南煤矿区的生态系统健康状况和进行矿区生态系统的调控提供决策依据。通过与MODIS NPP数据和基于粮食产量的农田NPP估算两种方法进行比较,表明了该文模拟数据具有一定的有效性。采用一元线性回归方法分析了年NPP总量随时间的变化规律;运用均值法和差值法分析了NPP的空间分布特征;应用Person相关系数和偏相关系数分析了年NPP总量与年均气温、年降水量和年日照时数间的相关关系。结果表明:13年来矿区植被年均NPP(以C计)为697.64 g·m~(-2),区域总体NPP的年均值为1.389 Tg。年NPP呈波动缓慢增长趋势,从2000年的1.103 Tg·a~(-1)缓慢增加到2012年的1.452 Tg·a~(-1),年平均增长量为0.0235 Tg。从空间分布看,NPP分布格局与土地利用方式密切相关,随着矿区的建设和城镇建设的发展,NPP显著降低;在农业耕作区内,NPP呈微弱增加趋势。与同期气候因子的相关性分析表明:年NPP与年均气温呈弱正相关关系,相关系数为0.125(P=0.683),与全年降水量呈中等强度相关,相关系数为0.522(P=0.067),与年日照时数呈不相关关系。
英文摘要: By using the data of net primary productivity (NPP) of vegetation from 2000 to 2012, which was calculated by GLOPEM-CEVSA coupling model based on remote sensing and ecological process, the evolution pattern of NPP was analyzed from the temporal and spatial aspects based on the macroscopic perspective, and its relationships with the main climatic factors (annual average air temperature, annual precipitation and annual sunshine-time number) were also analyzed. The above results provided the theory support to the control of fine state of ecological system and adjustment of the ecological system in Huainan coal mining area. By comparing with the MODIS NPP data and estimating the farmland NPP based on the grain yield, the results indicated the effectiveness of the GLOPEM-CEVSA model. Then, a linear regression method was employed to analyze the variations of annual NPP with time, and the average and difference method were used to analyze the spatial distribution characteristics of NPP. Finally, the Pearson correlation coefficient and partial correlation coefficient were made use of analyzing the correlation between annual NPP and annual average temperature, annual precipitation and annual sunshine hours. The results showed that for 13 years, the average annual net primary productivity of vegetation (by C) in the mining area is 697.64 g·m~(-2)·a~(-1), regional average annual NPP was 1.389 Tg·a~(-1); annual NPP increased from 1.103 Tg·a~(-1) in 2000 to 1.452 Tg·a~(-1) in 2012 with a fluctuation trend of slow growth, and the average annual growth rate is 0.0235 Tg. From the spatial distribution view, NPP distribution pattern was closely related to land use. With the development of the construction of mining area and town, NPP in the above areas decreased significantly, but then NPP in the farming district is weakly increased. By the analyzing correlation with the climate factors, the results showed that there was a weak positive correlation between annual NPP and annual average temperature, whose correlation coefficient was 0.125 (P=0.683); there was medium intensity correlation between annual NPP and annual precipitation, whose the correlation coefficient was 0.522 (P=0.067); there was no correlation between annual NPP and annual sunshine-time number.
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/157350
Appears in Collections:气候变化事实与影响

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作者单位: 1.安徽建筑大学环境与能源工程学院, 合肥, 安徽 230601, 中国
2.合肥工业大学土木与水利工程学院, 合肥, 安徽 230009, 中国
3.安徽建筑大学建筑与规划学院, 合肥, 安徽 230022, 中国

Recommended Citation:
陈广洲,李鑫海,焦利锋,等. 20002012年淮南煤矿区植被净初级生产力的时空变化特征[J]. 生态环境学报,2017-01-01,26(2):196-203
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