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目前顯示的是 九月, 2008的文章

Ornamental Fish

Gene Transfer in Taiwan is World-Renowned
Internationally, Taiwan is a leader in biotechnology research and development. Today (May 25), a press conference at the Council of Agriculture, Executive Yuan, was held by scientists and the Jy Lin Company , the biggest exporter of ornamental fish in Taiwan, to announce that the first green-fluorescent angelfish (Pterophyllum scalare) and convict cichlid (Cichlasoma nigrofasciatus) in the world have successfully been developed. The body colors of these two fish are a beautiful green fluorescent under blue light (as shown in the picture). With help from the Council of Agriculture and Fishery Agency, this industrial-academic cooperation received technical guidance from Academia Sinica and the “Office for the Promotion of Industrialization of Agricultural Biotechnology”. Then, through the screening and breeding undertaken by the technical team at Jy Lin Company, the beautiful new fish were cultivated which can be used for ornamental, scientific,…

用等高線來續水

用等高線來續水Keyline Swales–a Geoff Lawton/Darren Doherty Hybrid 原文出自Mr. Cambell Wilson, November 30, 2009 譯註:這是這幾年我看過最好的Swales的說明(最小的花費,最大的效益) Geoff Lawton 和Darren Doherty是澳洲永續農業的兩位大老,尤其在涉及到等高線續水的領域。他們都在一些非常艱難的的環境中有所表現,但有趣的是,他們的風格很不同,尤其是對水滲透的思考。 最近我有一個想法,根據各自的優勢,對他們的方法作一個簡單的比較。為了幫助理解,我設計了一組邊界地形圖(圖1.1)。我知道,Geoff和Darren會流口水,因為他們抬頭一看,山上的潛在壩址,但我故意保留公式,讓事情簡單化,並限制滲透率的比較。
同樣,雖然我還沒有註記,每人都會把在小壩/濕地/淤泥陷阱盡量固住以防止土石流。
Geoff Lawton的做法 Geoff的想法是用景觀蓄水(通常可以連接小水壩,不過這是後話). 他的基本想法是把水留在儘可能的景觀相對最高點,並利用臨界等高線當作水量的最高調控基準。因為水是保持在相對最高點,因此水量有足夠的時間滲透到地底,同時這才能對地底土壤補水,這種做法才可以對樹木及植栽產生最大的效益。(圖2.1).
他經常利用推土機建立大容量的窪地,(例如,以一台推土機的推刀寬,如圖2.2所示-推平行的土壁)。 這是非常適合亞熱帶,也適用年雨量在50-100mm的乾旱地區,因為雨量不多

台灣常見塑膠方桶

台灣常見方形塑膠桶 Plastic Square Plastic Bucket
V: Volume 總容積, Litter
A: Top Diameter 上部直徑, mm
B: Bottom Diameter 下部直徑, mm
H: Height 高度, mm
T: Average Thickness 平均厚度 mm
Unit: mm

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