日本欧美精品一区二区精选,国产日产韩国精品视频,,蜜臀av人妻一区二区三区,日本一区二区无卡高清视频

產品列表PRODUCTS LIST

首頁 > 技術與支持 > PR2土壤剖面水分傳感器進行生物多樣性/生態系統觀測應用

PR2土壤剖面水分傳感器進行生物多樣性/生態系統觀測應用

點擊次數:1827 發布時間:2021-03-08

blob.png

The Experiment

The Jena Experiment is a long-term biodiversity focused research project funded by the German Research Foundation (DFG).

The large scale project has been running since 2002 and involves over 100 scientists. The research is centered around discovering which mechanisms influence ecosystem functions and make them stable.

The project takes place on a 10 hectare site in Jena, Germany – which consists of approximately 600 plots of artificially assembled grasslands.

blob.png

Each plot is different, some are monocultures, others are grassland mixtures with up to 60 different species of grasses, herbs or legumes. Some of the plots are covered with a roof to simulate climatic extremes such as drought. 

Research at the Jena Experiment has found that plant productivity increases with increasing plant species richness. That means that meadows that have high diversity produce more biomass.

Ongoing research aims to better understand the mechanisms that underly this effect by comparing low diversity plots with high diversity plots.

blob.png

Of particular interest to the Jena Experiment scientific team is the issue of how plants, microorganisms and animals influence each other. Their research suggests that plant diversity has a positive effect on other organisms. For example, in plant species rich grasslands there are more species of pollinators and more earthworm activity - allowing plant roots to have better access to rain and soil water.

This activity means that a diverse eco system can have a positive influence on functions that are important for human wellbeing, in areas such as increasing yields and soil erosion control.

Delta-T Devices’s involvement 

Supplied by Delta-T Devices’s German distributor UP GMBH, the PR2 Profile Probe (available in analogue and digital SDI-12 versions) has been an important part of the Jena Experiment’s sensor network for nearly the entirety of the long running project.

blob.png

Dr Anne Ebeling, Scientific Coordinator at the Jena Experiment, says, 

Soil moisture is an important parameter for many of the processes studied in our research – especially at depths below the immediate surface soil. For this reason we have been using the PR2 Profile Probe to measure moisture profiles down to one metre for many years.

Dr Ebeling further explains,

The PR2 measures soil moisture at varying depths on a total of 240 experimental plots across the Jena facility. The readings are taken on a weekly basis in the spring and summer, and on a bi-weekly basis in the autumn and winter."

在線客服 聯系方式 二維碼

服務熱線

19901636028

掃一掃,關注我們

亚洲国产系列久久精品99| 亚洲色图第一区二区三区| 久久久久精品国产亚洲av无码| 国产精品久久久精品首页| 在线a级毛片免费观看| 亚洲av欧美aⅴ成人专区| 黄色福利片一区二区三区| 91精品人妻国产在线线| 中文字幕在线成人免费看| 人妻妇女偷人精品一区二区| 国产精品亚洲欧美大片在线观看| 亚洲精品巨爆乳无码大乳巨| 久久精品国产精品亚洲色婷婷| 国产老熟女精品一区视频| 一本色道久久88综合日韩| 大香伊人久久精品一区二区| 91精品国产乱码久久蜜桃| 综合久久997| 久久精品国产亚洲av网在| 成全视频在线观看免费高清版| 久久国产精品影院18禁| 免费看国产成年无码AV片| wwwwwww亚洲成人| 裸体18禁污污久久网站| 国产精品亚洲综合久久婷婷| 2020年亚州无码在线| 国产精品va一级二级三级| 性做爰添LBB在线视频| 亚洲电影日韩系列中文字幕| 亚洲第一页视频| 丰满少妇99麻豆久久久| 亚洲偷自拍另类图片二区| 偷窥亚洲综合| 五月婷婷之综合激情在线| 黄页视频在线观看免费版| 久久成人国产精品| 欧美成a人片在线观看久| 在线免费播放亚洲自拍网| 亚洲最大1024深夜福利| 国产精品一区二区三区三| 亚洲一区二区三区女厕偷拍|