国产精品另类激情久久久免费,无码国产精品一区二区免费式影视 ,日日摸日日碰人妻无码,亚洲一区二区三区AV无码

產(chǎn)品列表PRODUCTS LIST

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

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

點擊次數(shù):1068 發(fā)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(lián)系方式 二維碼

服務(wù)熱線

13301837523

掃一掃,關(guān)注我們

XML 地圖 | Sitemap 地圖
黑人巨大精品欧美一区二区| 久久人人爽爽人人爽人人片av| 久久人人爽爽人人爽人人片av| 被强行糟蹋的女人a片| 中国体育生gary飞机| 亚洲精品无码久久久| 国产精品久久久久AAAA| 人人妻人人澡人人爽欧美一区九九| 成 人 免费 黄 色 视频| 国产又黄又爽又色的免费视频| 无码a片观看免费| 成人精品一区二区三区中文字幕 | 日韩精品无码一区二区中文字幕| 亚洲电影在线观看| 亚洲精品午夜无码专区| 国产性生交xxxxx无码| 亚洲精品无码| 伊人久久大香线蕉综合75| 久久久久99精品成人片| 国精产品一品二品国精破解| av鲁丝一区鲁丝二区鲁丝三区| 伊人色综合久久天天五月婷| 欲妇荡岳丰满少妇a片24小时| 御书房双乳晃动干柴烈| 国产欧美日韩精品丝袜高跟鞋| 亚洲日本va中文字幕无码| 国产熟女一区二区三区五月婷| 久久久久国产精品熟女影院| 新金瓶悔1一5集免费大片| 欧美日韩精品一区二区在线播放| 狠狠干狠狠爱| 亚洲精品中文字幕无码蜜桃| 国产精品理论片在线观看| 国产成人精品免高潮在线观看| 97人伦影院a级毛片| 欧美性受xxxx狂喷水| 奇米777四色影视在线看| 精品黑人一区二区三区| 无码国产精品一区二区高潮| 亚洲va久久久噜噜噜久久天堂| 爆乳熟妇一区二区三区|