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期刊或书籍名称:地理学报

关键词:生态系统服务;生态系统服务图谱;权衡与协同;气候变化;汉江流域上游

体积/问题:72 (11)

页码(s):2064 - 2078

发表:2017

多种生态bob体育登录系统服务之间的相互作用是研究的热点。以往的研究大多集中在ES相互作用的定性描述上，而对ES相互作用的空间显式和定量评价研究相对较少。基于2000-2013年汉江上游地区土地利用和土地覆盖(LULC)、NDVI、土壤性质和气候观测数据，绘制了汉江上游地区土壤保持、净初级生产(NPP)和产水量(WY)的生态系统服务格局。在此基础上，运用像素尺度偏相关分析，在时空统计框架下定量评价了不同ES间相互作用的变化特征。结果表明:(1)2000 - 2013年，年平均SC为434.20 t·hm-2·yr-1，年平均WY为250.34 mm;呈上升趋势，分别为16.10 t·hm-2·yr-1和3.79 mm·yr-1。年平均NPP为854.11 gC·m-2·yr-1，以8.54 gC·m-2·yr-1的速率呈下降趋势。(2)空间上，南北向山区高，中谷区低;同样，中谷地区的NPP也低于其他地区。而WY由北向南逐渐增大。 (3) The three pairwise ES presented different interactions. Both the interaction between SC and NPP and that between SC and WY presented as trade-off, accounting for 62.77% and 71.60% of the total area, respectively. On the contrary, the interaction between NPP and WY was prone to synergies, accounting for 62.89% of the total area. (4) Pairwise ES in different land cover types also presented a different interaction. As for woodland, wetland, cropland, artificial land and bare land, SC and NPP, as well as SC and WY both presented trade-off, while WY and NPP presented synergy. Specially, in grassland, all the three pairwise ES presented a trade-off relationship. Therefore, spatially explicit and quantitative assessment of ES interactions are more helpful for revealing the temporal non-linear evolution, and the spatial heterogeneity of ES interactions. This analysis framework also contributes to the regional sustainable land management and the optimization of multiple ES conservation.

刊物类型:期刊文章