干旱区生态环境知识资源中心(Arid): 甘肃省季节性净初级生产力变化特征

Arid

	甘肃省季节性净初级生产力变化特征
其他题名	Variation Characteristics of Seasonal Net Primary Productivity in Gansu Province
	刘春雨 1; 董晓峰 2; 刘英英 1; 丁鑫 3
来源期刊	遥感信息
ISSN	1000-3177
出版年	2017
卷号	32 期号:5 页码:102-110
中文摘要	针对不同尺度视角下NPP时空差异及其影响因素的研究还比较匮乏的问题,以甘肃省为靶区,通过改进CASA模型估算了NPP的空间格局,并通过偏相关系数探讨NPP与气候因子的关系。甘肃省4季的NPP空间差异显著,变化强烈,呈现东南高西北低。以甘肃省为视角,降水量是夏季的主要控制气候因子,而气温是其他季节的主导气候因子。以不同生态区为视角,仅在夏季,季降水量是草原生态区、农业生态区和荒漠生态区的主要控制因子,其他主要控制因子均为季均温。春季,草原生态区对季均温存在时滞与累积效应;夏季,森林与农业生态区对季降水量和季均温存在时滞与累积效应;秋季,森林与草原生态区对季降水量和农业生态区对季均温都存在时滞与累积效应。
英文摘要	The study on time and space differences of NPP and how influence factors affects NPP is scarce at several different scales.Here we take Gansu province as the target,the spatial pattern of NPP in Gansu province and how climate factor affects NPP were discussed using an improved CASA model,and coefficient of partial correlation.There were significantly different and change for the seasonal NPP spatial distribution in Gansu province,reflecting that the variations were decreasing form the southeast with high values to northwest with low values.The summer was mainly influenced by the factor of precipitation,and the temperature was the main control factor in other seasons in the perspective of Gansu province.In the perspective of different ecological biomes,the grassland,agriculture and desert biome were mainly influenced by the factor of seasonal precipitation in the summer only,and the seasonal temperature was the main control factor in other seasons.The grassland biome of seasonal temperature manifested the time lag and cumulative effect in spring.The forest and agriculture biome of climate factors(precipitation and temperature)manifested the time lag and cumulative effect in summer.Compared with the forest and grassland biome of seasonal precipitation,the agriculture biome of seasonal temperature also manifested the time lag and cumulative effect in autumn.
中文关键词	季节性 ; 气候因子 ; 不同生态区 ; 甘肃省
英文关键词	NPP seasonality NPP climatic factor different biome Gansu province
语种	中文
国家	中国
收录类别	CSCD
WOS类目	GEOSCIENCES MULTIDISCIPLINARY
WOS研究方向	Geology
CSCD记录号	CSCD:6089203
来源机构	兰州大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/236891
作者单位	1.华侨大学政治与公共管理学院, 泉州, 福建 362021, 中国; 2.兰州大学资源环境学院, 兰州, 甘肃 730000, 中国; 3.华侨大学旅游学院, 泉州, 福建 362021, 中国
推荐引用方式 GB/T 7714	刘春雨,董晓峰,刘英英,等. 甘肃省季节性净初级生产力变化特征[J]. 兰州大学,2017,32(5):102-110.
APA	刘春雨,董晓峰,刘英英,&丁鑫.(2017).甘肃省季节性净初级生产力变化特征.遥感信息,32(5),102-110.
MLA	刘春雨,et al."甘肃省季节性净初级生产力变化特征".遥感信息 32.5(2017):102-110.