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盘锦红海滩土壤理化性质和土壤酶调查
刘 欢1,2, 何 洁1,2, 樊晓茹1,2, 刘 远1,2, 魏海峰1,2, 吴 彤1,2, 赵嘉欣1,2, 王腾腾1,2
1.大连海洋大学 海洋科技与环境学院, 近岸海洋环境科学与技术辽宁省高校重点实验室;2.辽宁省海洋生物资源恢复与生境修复重点实验室
摘要:
近年来, 我国滩涂湿地退化十分严重, 其中盘锦红海滩的翅碱蓬也呈现了大面积退化和死亡得现象。本文以盘锦红海滩不同时间、不同区域的土壤为例, 对土壤理化性质和土壤酶进行研究, 通过测定翅碱蓬生长的土壤中pH、盐度、氧化还原电位、总磷、总氮、氨氮、硝酸盐氮和土壤酶理化性质,来探查翅碱蓬退化的原因。实验结果表明: 不同区域4月份土壤样品的pH、盐度、氧化还原电位、总氮、总磷和亚硝酸盐氮含量较3月份土壤样品相比均有所降低, 其中总磷和亚硝酸盐氮下降明显; 氨氮、硝酸盐氮变化明显规律。翅碱蓬生长繁茂区土样的土壤酶与退化区相比差别不大; 当气温升高时, 各地区酶活性均有所提高。
关键词:  翅碱蓬  湿地土壤  土壤理化性质  土壤酶
DOI:10.11759/hykx20171025001
分类号:
基金项目:盘锦红海滩湿地退化与生态修复项目(PHL-XZ-2017013-002); 辽宁省自然科学基金资助项目(2015020616)
A preliminary study on the reasons for the degradation of S. heteroptera——Soil physical and chemical properties and soil enzyme investigation
LIU Huan,HE Jie,FAN Xiao-ru,LIU Yuan,WEI Hai-feng,WU Tong,ZHAO Jia-xin,WANG Tengteng
Abstract:
In recent years, the degradation problem of intertidal wetland is increasingly more serious in China, among them, the S. heteroptera of Panjin red beach have showed the widespread degradation and the phenomenon of death. In this paper, we have treated the different soil in Panjin Red Beach at different time period as example to search for the soil physical and chemical properties. Data was collected through measuring the soil pH, salinity, oxidation and reduction potential, total phosphorus, total nitrogen, ammonia nitrogen, nitrite nitrogen, nitrate nitrogen and soil enzymes and other physical and chemical properties to explore the factors, which lead to the degradation of saponin. The experimental result showed that compared with the soil sample of March, the contents of pH, salinity, redox potential, total nitrogen, total phosphorus and nitrite of April were lower. What’s more, differently form the inapparent variation regularity of ammonia nitrogen and nitrate nitrogen, the data of total phosphorus and nitrite Nitrogen decreased significantly. There was no significant difference between the soil enzyme and the degraded area of the soil in the lush area of the S. heteroptera. In addition, we found that the enzymatic activity of the soil was increased due to the improvement of the temperature.
Key words:  S. heteroptera  wetland soil  soil physical and chemical properties  soil enzyme
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