Comparison of acid deposition's runoff process in forests across Japan

1.酸沉降对森林的输入（1）在各种环境下观测酸沉降对森林的输入（2）开始观测干沉降2。（1）研究了pH、EC和可溶性离子的季节性波动和树种间的差异;（2）研究了日本杉、日本柏树等林分对酸沉降的中和过程;（3）研究了植物的反应和植被变化与土壤环境变化的关系。（1）研究了几个流域的溪流特征（2）研究了森林矿物输出的过程（3）研究了与融雪有关的多雪地区的水特征和矿物消耗的变化4.沉积物的采集方法（1）重新讨论了穿透水和茎流的采集方法（2）讨论了干沉积和土壤溶液的采集方法（3）组织工作组讨论了沉积物的采集方法（4）编制了酸沉降观测手册5.同时观测（1）同时观测湿沉降、干沉降、日本雪松穿透雨、茎流和溪流水6。数据库（1）讨论了利用本研究收集的数据建立数据库的方法（2）利用同步观测数据建立数据库

1. Input of acid deposition to forests(1) Input of acid deposition to forests was observed at various environments(2) Observation of dry deposition was started2. Throughfall, stem flow and soil(1) Seasonal fluctuations and difference in tree species were examined on pH, EC and dissolved ion(2) Neutralization process of acid deposition was examined on stands of Japanese cedar, Japanese cypress and so on(3) Reaction of plants and changes in vegetation were examined in relation to changes in soil environment3. Stream water's characteristics(1) Stream water's characteristics were examined at several watershed(2) Process of mineral output from forests was examined(3) Changes in water characteristics and mineral expenditure, were examined at snowy region in relation to snowmelt4. Methods for collecting depositions(1) Methods for collecting throughfall and stem flow were rediscussed(2) Methods for collecting dry deposition and soil solution were discussed(3) working group were organized to discuss methods for collecting depositions(4) Manual was made for acid deposition's observation5. Simultaneous observations(1) Simultaneous observations of wet deposition, dry deposition, throughfall of Japanese cedar, stem flow and stream water were conducted6. Data base(1) Methods for creating data bases from data collected in this research were discussed(2) Data base was created using data of simultaneous observations