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研究了浙南泥质海岸林地初期二年通过套种、覆盖等营林措施对泥质海岸土壤盐分及其pH年动态变化的影响。结果表明,①造林当年和次年0~20 cm表层土土壤含盐量存在4月、7月和11月3个峰值和6月和10月2个谷值,7月为最高值,6月为最低值;二年中,0~20 cm剖面土壤盐含量降低幅度达22.49%~16.09%;②造林当年>20~50 cm次层土土壤盐含量存在4月、11月2个峰值和7月、8月2个谷值;次年>20~50 cm次层土土壤含盐量月变化则除6月出现1个明显的谷值外,其余观测月份土壤盐含量动态变化呈比较平缓线性下降趋势;经历2 a,>20~50 cm剖面土壤盐含量降低13.04%~15.83%;③二年的测定结果同时表明,表层土pH值在8.3~8.5,次层土pH值在8.4~8.6。
The effects of silvicultural measures on the dynamic changes of soil salinity and pH during the first two years of muddy coast in southern Zhejiang were studied. The results showed that there were three peaks in April, July and November and two troughs in June and October with the highest value in July and the highest in July The soil salt content in 0 ~ 20 cm section decreased by 22.49% ~ 16.09% in the two years; ② The soil salt content of 20 ~ 50 cm subsoil in the afforestation period had 2 peaks in April and November and 7 Month and August. The monthly change of soil salinity in 20 ~ 50 cm subsoil in the next year showed a flat linearity in addition to a clear valley in June. The soil salt content in the section> 20 ~ 50 cm decreased by 13.04% ~ 15.83% after 2 years; ③ The results of two years also showed that the pH value of topsoil was 8.3 ~ 8.5 and the pH value of subsoil was 8.4 ~ 8.6 .