近30年海南岛土壤有机质时空变异特征及成因分析
姜赛平1,2,张认连1,张维理1,徐爱国1(),张怀志1,谢良商3,冀宏杰1
Spatial and Temporal Variation of Soil Organic Matter and Cause Analysis in Hainan Island in Resent 30 Years
JIANG SaiPing1,2,ZHANG RenLian1,ZHANG WeiLi1,XU AiGuo1(),ZHANG HuaiZhi1,XIE LiangShang3,JI HongJie1

图4. 1980s—2012年SOM含量时空变异图

Fig. 4. Temporal changing distribution of SOM contents from 1980s to 2012