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100年 - 100 高等考試_二級_土壤肥料:高等土壤學#37532
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題組內容
五、土壤受重金屬污染後,常添加一些農用無害物質做為土壤改良劑(soil amendments), 以降低作物對污染重金屬之吸收濃度。請說明下列物質添加後在該污染土壤之主要 作用機制(mechanism)或反應(reaction)為何?
⑵鉛污染區 施用大量磷酸鹽;
其他申論題
二、影響土壤中各養份離子或重金屬在土壤中之溶解(solubility)及移動(movement) 之主要土壤性質為何?試申論之。(20 分)
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三、要瞭解某一區域(300 公尺 × 300 公尺)之土壤肥力等級或受某些重金屬污染等級 之嚴重性,試說明有那些土壤採樣技術(soil sampling techniques)可作為調查結果 之依據?又利用何種技術或模式,可依調查結果來評估其肥力等級分布或重金屬濃 度等級之分布?(20 分)
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四、要評估土壤中微量元素(如銅、鋅)或受重金屬(如鎘、鉛)污染之元素之生物有 效性濃度(bioavailable concentration),常使用土壤速測法(soil testing)以評估作 物對元素之吸收濃度,試寫出三種常用之土壤元素生物有效性萃取溶液及其濃度, 並說明為何其適用之理由。(20 分)
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⑴鎘污染區施用石灰;
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⑶重金屬污染區施用鹽酸酸洗。(20 分
#107537
一、 WASHINGTON (AP) — Remember biology class where you learned that children inherit one copy of a gene from mom and a second from dad? There's a twist: Some of those genes arrive switched off, so there is no backup if the other copy goes bad, making you more vulnerable to disorders from obesity to cancer. Duke University scientists now have identified these "silenced genes," creating the first map of this unique group of about 200 genes believed to play a profound role in people's health. More intriguing, the work marks an important step in studying how our environment — food, stress, pollution — interacts with genes to help determine why some people get sick and others do not.
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二、 U.S. Senator Trent Lott’s sudden decision to retire from public office has Washington’s lobbying industry salivating at the prospect that the Mississippi lawmaker may join the millionaire’s row on K Street. That’s where more and more congressional alumni have been hanging their backslapper’s shingle to lobby old buddies. Mr. Lott’s planned departure — conveniently ahead of the new two-year wait before a retired senator can lobby — is shedding light on Capitol Hill’s quasi-aristocracy of ex-incumbents who never return home and stay close by to work politics from its more lucrative shadow world. By last count, the lobbying ranks include 37 former senators and 158 graduates of the House, with fresh enlistments expected from the dozens of current members planning to quit before the expected watershed election next year. It’s important to shine a light on lobbying, more than to belabor this inevitable calling. The Senate, in fact, voted to require more lobbyist disclosure this year and to double its one-year moratorium before alumni can lobby.
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三、 A decade ago, James A. Thomson was the first to isolate human embryonic stem cells. Last week, he announced one of the great scientific breakthroughs since the discovery of DNA: an embryo-free way to produce genetically matched stem cells. Even a scientist who cares not a whit about the morality of embryo destruction will adopt this technique because it is so simple and powerful. The embryonic stem cell debate is over. This allows a bit of reflection on the storm that has raged ever since the August 2001 announcement of President Bush's stem cell policy. The verdict is clear: Rarely has a president — so vilified for a moral stance — been so thoroughly vindicated.
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四、 Hydrocarbon fuels (chiefly coal, oil and natural gas) were first used to create energy at the dawn of the Industrial Revolution, as mankind began to run short of traditional fuels like wood and whale oil. The new fuels contained more latent energy than any previously discovered, but they also came with a flaw: the carbon emissions that are an unavoidable by-product of their combustion. These gases build up in the planet’s atmosphere, where they act like the panes of glass on a greenhouse, allowing the sun’s warmth in but not back out. As heat that would ordinarily radiate off into space is instead reflected once again toward the planet’s surface, temperatures begin to rise and the globe begins to warm. Two of the sharpest spears created by global warming — flooding and drought — account for more than half the world’s deaths from natural disaster. Nations whose land lies close to sea level, like the Netherlands, Bangladesh and Indonesia, are at great risk, as are locations where natural barriers against water have been degraded by man. Scientists believe that Hurricane Katrina would have packed a far less devastating punch if the wetlands that buffer New Orleans from the Gulf of Mexico had not been removed by imprudent levee-building and oil and gas development.
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一、台北市 A 電視台播放未加註記「飲酒過量,有害健康」等相關警語之廣告,致遭 台北市政府處壹百萬元罰鍰。A 對此罰鍰處分,若逾期提起訴願,受理訴願之機關 應如何處理?又 A 逾期提出訴願五日後,才發現台北市政府處壹百萬元之罰鍰處分, 違反菸酒管理法第 55 條最高僅得處五十萬元之規定。此時,A 有無救濟途徑,試 分析說明之。(25 分)
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