【摘要】：本文基于空間相關分析、線性和冪函數(shù)回歸等方法,分析了1990-2010年關中盆地初級生產(chǎn)力(NPP)、保水量和食物供給三種服務之間的相關性,擬合NPP與保水量、NPP與食物供給的空間權衡與協(xié)同關系,探討生態(tài)服務之間權衡與協(xié)同關系的時空差異,進一步通過熱點區(qū)識別,了解不同區(qū)域生態(tài)服務供給能力的強弱,為關中地區(qū)生態(tài)建設提供一定的理論決策依據(jù)。結果表明:(1)NPP與保水量多年均值的相關系數(shù)為0.409,即NPP增加會促進保水量的增加,反過來保水量的增加有利于NPP的累積,表現(xiàn)為協(xié)同關系;NPP與食物供給、食物供給與保水量多年均值的相關系數(shù)分別為-0.441、-0.366,均表現(xiàn)為權衡關系;(2)關中盆地NPP和保水量之間存在較強的協(xié)同關系,NPP和食物供給之間存在較強的權衡關系,具有一定的空間差異性。通過冪函數(shù)擬合發(fā)現(xiàn),NPP與保水量在關中盆地東北部協(xié)同關系擬合顯著,且都表現(xiàn)為多年增加的變化趨勢;NPP與食物供給在關中盆地中部制約關系比較突出,NPP增加伴隨著食物供給的冪函數(shù)形式下降;(3)關中盆地多重服務熱點區(qū)基本位于南部邊緣地區(qū)的秦嶺和北部的北山。
[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.
【作者單位】： 陜西師范大學旅游與環(huán)境學院;陜西師范大學西北歷史環(huán)境與經(jīng)濟社會發(fā)展研究院;
【基金】：教育部人文社會科學重點研究基地項目(14JJD840004) 國家自然科學基金項目(41371523) 科技部科技支撐項目(2014BAL01B03)
【分類號】：X171

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