关中盆地生态服务权衡与协同时空差异
发布时间：2019-05-10 04:09
【摘要】：本文基于空间相关分析、线性和幂函数回归等方法,分析了1990-2010年关中盆地初级生产力(NPP)、保水量和食物供给三种服务之间的相关性,拟合NPP与保水量、NPP与食物供给的空间权衡与协同关系,探讨生态服务之间权衡与协同关系的时空差异,进一步通过热点区识别,了解不同区域生态服务供给能力的强弱,为关中地区生态建设提供一定的理论决策依据。结果表明:(1)NPP与保水量多年均值的相关系数为0.409,即NPP增加会促进保水量的增加,反过来保水量的增加有利于NPP的累积,表现为协同关系;NPP与食物供给、食物供给与保水量多年均值的相关系数分别为-0.441、-0.366,均表现为权衡关系;(2)关中盆地NPP和保水量之间存在较强的协同关系,NPP和食物供给之间存在较强的权衡关系,具有一定的空间差异性。通过幂函数拟合发现,NPP与保水量在关中盆地东北部协同关系拟合显著,且都表现为多年增加的变化趋势;NPP与食物供给在关中盆地中部制约关系比较突出,NPP增加伴随着食物供给的幂函数形式下降;(3)关中盆地多重服务热点区基本位于南部边缘地区的秦岭和北部的北山。
[Abstract]:Based on spatial correlation analysis, linear and power function regression, this paper analyzes the correlation between primary productivity (NPP), water retention and food supply in Guanzhong Basin from 1990 to 2010, and fits NPP and water conservation. The spatial tradeoff and synergy between NPP and food supply, the spatial and temporal differences of trade-off and synergy between ecological services are discussed, and the strength of ecological service supply capacity in different regions is further understood through the identification of hotspots. It provides a certain theoretical basis for ecological construction in Guanzhong area. The results show that: (1) the correlation coefficient between NPP and the average value of water holding capacity is 0.409, that is to say, the increase of NPP will promote the increase of water holding capacity, and the increase of water holding capacity is beneficial to the accumulation of NPP, showing a synergistic relationship; The correlation coefficients between NPP and food supply, and between food supply and water retention were-0.441 and 0.366, respectively, which showed a trade-off relationship. (2) there is a strong synergetic relationship between NPP and water conservation in Guanzhong Basin, and there is a strong trade-off relationship between NPP and food supply, which has a certain spatial difference. By power function fitting, it is found that the synergistic relationship between NPP and water retention is significant in the northeast of Guanzhong basin, and both of them show the trend of increasing for many years. The relationship between NPP and food supply is prominent in the central Guanzhong Basin, and the increase of NPP is accompanied by the decrease of the power function of food supply. (3) the multiple service hotspots in Guanzhong Basin are basically located in Qinling Mountains in the southern margin and Beishan in the north.
【作者单位】： 陕西师范大学旅游与环境学院;陕西师范大学西北历史环境与经济社会发展研究院;
【基金】：教育部人文社会科学重点研究基地项目(14JJD840004) 国家自然科学基金项目(41371523) 科技部科技支撑项目(2014BAL01B03)
【分类号】：X171
本文编号：2473332
[Abstract]:Based on spatial correlation analysis, linear and power function regression, this paper analyzes the correlation between primary productivity (NPP), water retention and food supply in Guanzhong Basin from 1990 to 2010, and fits NPP and water conservation. The spatial tradeoff and synergy between NPP and food supply, the spatial and temporal differences of trade-off and synergy between ecological services are discussed, and the strength of ecological service supply capacity in different regions is further understood through the identification of hotspots. It provides a certain theoretical basis for ecological construction in Guanzhong area. The results show that: (1) the correlation coefficient between NPP and the average value of water holding capacity is 0.409, that is to say, the increase of NPP will promote the increase of water holding capacity, and the increase of water holding capacity is beneficial to the accumulation of NPP, showing a synergistic relationship; The correlation coefficients between NPP and food supply, and between food supply and water retention were-0.441 and 0.366, respectively, which showed a trade-off relationship. (2) there is a strong synergetic relationship between NPP and water conservation in Guanzhong Basin, and there is a strong trade-off relationship between NPP and food supply, which has a certain spatial difference. By power function fitting, it is found that the synergistic relationship between NPP and water retention is significant in the northeast of Guanzhong basin, and both of them show the trend of increasing for many years. The relationship between NPP and food supply is prominent in the central Guanzhong Basin, and the increase of NPP is accompanied by the decrease of the power function of food supply. (3) the multiple service hotspots in Guanzhong Basin are basically located in Qinling Mountains in the southern margin and Beishan in the north.
【作者单位】： 陕西师范大学旅游与环境学院;陕西师范大学西北历史环境与经济社会发展研究院;
【基金】：教育部人文社会科学重点研究基地项目(14JJD840004) 国家自然科学基金项目(41371523) 科技部科技支撑项目(2014BAL01B03)
【分类号】：X171
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