系統功能
SF-G探針式莖流傳感器是用來連續測量樹干中莖流速率的儀器。
工作原理
將兩個探針插入樹干,給處于上部的探針用恒定能量加熱,上下二個探針之間的溫度差反應樹干中的莖流速率,用經驗公式換算成莖流速率。
系統特點
適合于直徑大于2厘米的樹干;
傳感器可重復使用。
缺點:
樹干縱向溫度變化(±2.5℃)和測量結果疊加,導致測量錯誤可能超過100%;
無法測量夜間液流。夜間液流人為的假設為零。
應用案例
(1)中國科學院水利部水土保持研究所(需要提供照片)
(2)國際應用案例及精選參考文獻詳見:https://ecomatik.de/en/ref-pub/
參考文獻
1. 不同灌水定額對滴灌條件下核桃樹莖流速率的影響-《節水灌溉》2015年 第12期 | 趙付勇 趙經華 付秋萍 洪明 馬英杰 新疆農業大學水利與土木工程學院 新疆烏魯木齊830052
2. 《中國農村水利水電》 2017年03期,滴灌核桃樹莖流變化規律與光合作用的研究趙付勇,趙經華,馬英杰,洪明,付秋萍,新疆農業大學水利與土木工程學院 新疆烏魯木齊
3. 員玉良;基于莖直徑與莖流復合測量的植物水分生理調節觀測方法研究[D];中國農業大學;2015年
4.王海蘭;喬木體水分的測試技術及其監測系統的研究[D];北京林業大學;2011年
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