[Sông] được sinh ra đi du lịch, Luôn Muốn di chuyển trên, không dung nạp của sự kiềm chế và can thiệp công nhân lưu động Luôn luôn lan man xuống dòng để xem những gì xung quanh uốn cong tới, gầm gừ hoặc hát những bài hát, tùy thuộc vào Them Làm thế nào Những điều sau. Bây giờ, một cái hồ không bao giờ đi bất cứ nơi nào hoặc không nhiều. Nó chỉ đi ra khỏi nằm đó, chết trong giường Tăng cùng trong Mà nó được sinh ra. Hồ là một tập hợp các điều kiện. | CHAPTER 13 Biological Sampling Rivers are born traveling wanting always to move on intolerant of restraint and interference itinerant workers always rambling down the line to see what s around the next bend growling or singing songs depending on how things suit them. Now a lake never goes anywhere or does much. It just sort of lies there slowly dying in the same bed in which it was born. The lake is a set of more or less predictable conditions at least compared to the swiftly changing stream of physical chemical and biological variables that constitute a living river. Among those variables though is one reliable constant for me anyway. Whenever I am out on a river some of its freeness rubs off on me. And since freedom is always a highly perishable commodity frequent returns to the river are necessary for taking on a new supply. John Madson223 BIOLOGICAL SAMPLING THE NUTS AND BOLTS OF STREAM ECOLOGY A few years ago my sampling partner and I were preparing to perform benthic macroinvertebrate sampling protocols in a wadable section in one of the countless reaches of the Yellowstone River. It was autumn windy and cold. Before I stepped into the slow-moving frigid waters I stood for a moment at the bank and took in the surroundings. The pallet of autumn is austere in Yellowstone. The coniferous forests east of the Mississippi lack the bronzes the coppers the peach-tinted yellows the livid scarlets that set the mixed stands of the East aflame. All I could see in that line was the quaking aspen and its gold. This autumnal gold which provides the closest thing to eastern autumn in the West is mined from the narrow rounded crowns of Populus tremuloides. The aspen ttunks stand stark white and antithetical against the darkness of the 223Madson J. Up on the River. New York Lyons Press pp. 8-15 1985. 189 Copyright 2001 by Technomic Publishing Company Inc. 190 BIOLOGICAL SAMPLING firs and pines the shiny pale gold leaves sensitive to the slightest rumor of wind. Agitated .
