北京大都市邊緣區(qū)耕地多功能評價指標體系構(gòu)建——以大興區(qū)為例
發(fā)布時間:2018-06-26 02:23
本文選題:土地評價 + 指標體系 ; 參考:《中國土地科學(xué)》2017年08期
【摘要】:研究目的:構(gòu)建基于過程的耕地多功能評價指標體系,探究耕地各功能間相關(guān)關(guān)系,并以大興區(qū)為例加以應(yīng)用。研究方法:基于"指標—過程—功能—需求"理論框架,構(gòu)建基于過程的耕地多功能評價指標體系,運用指數(shù)和法、內(nèi)梅羅綜合污染指數(shù)法以及有機碳密度方程進行定量化評價。研究結(jié)果:(1)大興區(qū)耕地生產(chǎn)、緩沖過濾功能處于中等偏下水平;(2)健康功能有進一步惡化的趨勢;(3)碳固持功能較弱,且空間分異較其他三種功能更為明顯;(4)碳固持和健康功能呈現(xiàn)拮抗關(guān)系,其他各對功能間均有一定的協(xié)同關(guān)系。研究結(jié)論:基于過程的耕地多功能評價指標體系的是可行的。
[Abstract]:Objective: to construct a multi-function evaluation index system of cultivated land based on process, and to explore the correlation between various functions of cultivated land, and take Daxing District as an example to apply it. Methods: based on the theory framework of "Index-process-Function-demand", the multi-function evaluation index system of cultivated land based on process was constructed, and the index sum method was used. Nemero comprehensive pollution index method and organic carbon density equation for quantitative evaluation. The results are as follows: (1) cultivated land production in Daxing area, the function of buffer and filtration is at the middle and lower level; (2) the function of health has a tendency to deteriorate further; (3) the function of carbon sequestration is weak, Spatial differentiation was more obvious than the other three functions. (4) carbon sequestration and health function showed antagonistic relationship, and the other pairs had some synergistic relationship. Conclusion: the process-based multi-function evaluation index system of cultivated land is feasible.
【作者單位】: 中國農(nóng)業(yè)大學(xué)資源與環(huán)境學(xué)院;國土資源部農(nóng)用地質(zhì)量與監(jiān)控重點實驗室;國土資源部土地整治中心;
【基金】:國家自然科學(xué)基金面上項目(41771561) 北京市自然科學(xué)基金重點項目(8151001) 北京市大興區(qū)耕地質(zhì)量和耕地產(chǎn)能評價研究與試點項目
【分類號】:F323.211
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本文編號:2068641
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