Santa Catalina Mountains Soil Solution Chemistry 2011 (Arizona, USA)

Soil solution samples in the Santa-Catalina Mountain field sites of the Catalina-Jemez Critical Zone Observatory (CZO) are collected with three types of soil solution samples: i) Prenart Super Quartz suction cups (www.prenart.dk) and ii) SoilMoisture suction cups (SoilMoisture Equipment Corp., Santa Barbara, CA) and iii) custom made zero-tension sampler (Hinckley et al., 2008). Prenart suction cups are optimized for all chemistry analyses and were installed without addition of Si-slurry to allow for artifact-free Si analyses. Applied suction for each Prenart is ~ 50kPa and SoilMoisture suction cups are sampled with a suction of 70-80kpa. Both suction cup types are optimized for all chemistry analyses with the exception of dissolved organic matter in the case of the SoilMoisture ones (due to potential sorption of DOM on the porous ceramic material). Zero-tension samplers are optimized for water flux determination at saturated flow and sampling for various chemistry analyses. In Marshall Gulch there are 8 SoilMoisture suction cups in the schist site and 7 in the granite site in both convergent and divergent landscape positions. These soil solution samplers are co-located with piezometers measuring water table depth within the soil profile. In the Oracle Ridge site there are 8 pits each equipped with 2 Prenarts and 1 SoilMoisture ceramic cup lysimeter. These samplers are co-located with Decagon Em5b data loggers with EC-5 soil moisture sensors and ECT soil temperature sensors. The B2 Desert site Schist and a Granite sites are both equipped with 7 zero-tension samplers (Hinckley et al., 2008) in both divergent and convergent landscape positions as well one SoilMoisture ceramic cup lysimeter. These samplers are co-located with Decagon Em5b data loggers with EC-5 soil moisture sensors and ECT soil temperature sensors.

在卡塔利娜-杰梅兹临界带观测站（CZO）的圣-卡塔利娜山野外研究站，土壤溶液样本的采集采用三种类型的土壤溶液采样器：i) Prenart超级石英吸盘（www.prenart.dk）和ii) 土壤湿度吸盘（SoilMoisture Equipment Corp.，加利福尼亚州圣巴巴拉）以及iii) 定制的零张力采样器（Hinckley等，2008年）。Prenart吸盘针对所有化学分析进行了优化，安装时未添加硅浆，以实现无杂质硅分析。每个Prenart的施加吸力约为50kPa，而SoilMoisture吸盘的采样吸力为70-80kPa。这两种吸盘类型均针对所有化学分析进行了优化，但SoilMoisture吸盘在溶解有机物方面除外（由于DOM可能吸附于多孔陶瓷材料）。零张力采样器针对饱和水流的水通量测定以及各种化学分析进行优化。在马歇尔峡谷，有8个SoilMoisture吸盘位于片麻岩地点，7个位于花岗岩地点，且在汇聚和发散景观位置均有分布。这些土壤溶液采样器与测量土壤剖面中地下水位的水压计相邻。在奥里奇岭站点，有8个坑，每个坑配备2个Prenart吸盘和1个SoilMoisture陶瓷杯 lysimeter。这些采样器与Decagon Em5b数据记录器以及EC-5土壤湿度传感器和ECT土壤温度传感器相邻。在B2沙漠站点，片麻岩和花岗岩地点均装备了7个零张力采样器（Hinckley等，2008年），且在发散和汇聚景观位置均有分布，同时还配备了一个SoilMoisture陶瓷杯 lysimeter。这些采样器与Decagon Em5b数据记录器以及EC-5土壤湿度传感器和ECT土壤温度传感器相邻。