Spatial Estimation of Soil Organic Matter in Karst Peak-cluster Depression
作者： Li Hui , Jiang Zhong-Cheng , Yang Qi-Yong , Yin Hui , Wang Yue
DOI: 10.2174/1874149501509011022
关键词:
摘要: In order to enhance the accuracy of spatial estimation soil organic matter (SOM), predictions SOM in 0~20 cm depth were conducted Guohua Ecological Experimental Area Minister Land and Resource People's Republic China. Analysis multiple linear stepwise regressions showed that two terrain attributes relief degree land surface (RS) distance from ridge mountains (DFR) entered into regression equation. Therefore, RS DFR selected as auxiliary variables predict by MCOK RK methods. The was compared among methods ordinary kriging (OK), multivariable cokriging (MCOK) (RK). Results with could SOM, method promote notable 31.33%. This study can provide a new idea for evaluation quality karst areas.
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