jzzijzzij亚洲成熟少妇,波多野结衣av无码,一本色道久久综合亚洲精品,国产男男激情videosgay

產(chǎn)品列表PRODUCTS LIST

首頁(yè) > 技術(shù)與支持 > PR2土壤剖面水分傳感器進(jìn)行生物多樣性/生態(tài)系統(tǒng)觀測(cè)應(yīng)用

PR2土壤剖面水分傳感器進(jìn)行生物多樣性/生態(tài)系統(tǒng)觀測(cè)應(yīng)用

點(diǎn)擊次數(shù):1287 發(fā)布時(shí)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(lián)系方式 二維碼

服務(wù)熱線

13301837523

掃一掃,關(guān)注我們

永久免费40分钟看大片| 以吾之名在线观看| 猛烈撞击灌满白浊花液h| 爱的色放在线观看| 亚洲熟妇无码av无码| 双手绑着被吊着进入男男| 日本护士野外奶水hd| 人妻丝袜无码国产一区| 一边摸一边叫床一边爽| 开小箩莉嫩苞h公交| 国产成人精品综合在线观看| 麻豆精品无码国产在线果冻| 中文在线ずっと好きだった| 最新的zoom动物马| 日本强伦姧人妻一区二区| 天码av无码一区二区三区四区| 欧美性人人天天夜夜摸| 五月天中文字幕mv在线| 欧美xxxx黑人又粗又长精品| 精品国产一区二区三区久久影院| 把女人弄爽的特黄A大片| 妓院里的中国姑娘| 国产一性一交一伦一a片| 久久综合久久鬼色| 国产真实迷奷视频| 狠狠五月色婷婷蜜桃777| 国内少妇人妻丰满AV| 天堂资源中文最新版在线一区| 极品hd无码国模国产在线观看| 欧美人体艺术视频| 亚洲av无码一区二区三区网站| YELLOW日本高清在线| 五月天人体艺术| 99久久无码一区人妻a片竹菊| 亚洲成av人片在线天堂无| 国产丝袜美女一区二区三区| 欧美国产成人精品一区二区三区| 日日日日做夜夜夜夜做无码| 国产女人的高潮国语对白入口| 最近中文字幕在线看免费完整版 | 日本无码成人片在线观看波多|