摘要
通过对黑龙江省西部地区土壤有机质、土壤阳离子交换量、土壤pH值及全盐量的分布特征进行的分析,结果表明:黑龙江省西部地区土壤阳离子交换量与土壤有机质含量之间存在极显著正相关性,相关系数为0.5868,说明增加土壤有机质的含量可以增加阳离子交换量,增强土壤的缓冲能力,进而提高土壤的保肥供肥性;土壤pH值与水溶性盐总量之间存在极显著的正相关性﹙r=0.6473,P<0.01﹚,可根据土壤pH值对全盐量的大小进行初步预测;土壤阳离子交换量与土壤pH值之间不存在相关性或相关性极低。
Distribution characteristics of soil organic matter,CEC,soil pH&total salt content were analyzed in central region of Songnen plain of Western Heilongjiang Province.Result shows that there is a significant positive correlation between CEC&soil organic matter,the correlation coefficient is 0.5868,which illustrated that increasing soil organic matter can improve CEC,enhance soil buffer capacity&soil fertility,so as to provide theoretical basis for organic fertilizer application;there is a significant positive correlation between soil pH and total salt content﹙r=0.6473,P<0.01﹚,a preliminary prediction of the amount of total salt can be made based on the PH value of the soil.there is no correlation relationship or extremely low correlation relationship between CEC and soil pH.
作者
李艳
郝占魁
石强
刘文环
Li Yan;Hao Zhankui;Shi Qiang;Liu Wenhuan(Forest and Grass Bureau of Fuyu County,Qiqihar 161200,China;Forest and Grass Bureau of Tiefeng District,Qiqihar 161005,China;Academy of Forest and Environment of Heilongjiang Province,Qiqihar 161005,China)
出处
《防护林科技》
2020年第4期20-22,共3页
Protection Forest Science and Technology
