湿地的

The results showed that it was unsatisfactory for the whole samples to estimate the LAI, with the correlation coefficient being only 0.523. After the total samples were divided into four vegetation types, i.e., meadow vegetation, marsh vegetation, shrub and islanded forest, the correlation coefficients and the estimation accuracy were improved evidently. Cubic equations were found to be the best in the different forms of the regression models for retrieving the LAI of wetland vegetation by using CBERS data, with the R^2 value being 0.723, 0.588, 0.837, and 0.720, respectively.

结果表明，整个研究区样本总体的LAI估算效果不太理想，其NDVI与LAI的相关性仅为0.523；将研究区分为草甸、沼泽、灌丛和岛状林4种湿地植被类型，NDVI与各植被型LAI的相关性和估算效果均有很大程度的提高，所建立的LAI遥感反演模型以三次曲线回归方程拟合精度最高，R^2分别达到0.723、0.588、0.837、0.720。

Such an endeavor, it is understood, would have to be preceded by extensive assessment and/or restoration of sufficient quality and quantity of natural wetland feeding environments. A key factor of such areas needs to be the re-establishment of sustainable low-impact agricultural practice. The location of suitable roosting and nesting environments also has to be considered.

这样的努力首先需要进行对再引入恢复地的评价，如自然湿地中食物数量和质量监测；需要确立可持续的低影响农业作为该地区的重要因素；还需要考虑适宜的营巢和栖息环境。

At other sites Veolia has to use falcons, cannons, scarecrows, sonar and other gadgets to scare off the birds that try to scavenge on the rubbish, but not at Pitsea, because the surrounding wetlands are among Britain's few remaining breeding grounds of the black-tailed godwit.

在pitsea以外的一些垃圾场，威力雅公司不得不采取猎鹰、榴弹、稻草人、声纳和其它种种招数，驱赶试图从垃圾中取食的鸟类。但在Pitsea的情况不同，因为附近的湿地是黑尾豫在英国仅存的几个的繁衍地之一。

As the fireflies can only clean the river or wetland life, so the merits of the index into the environment; and in recent years, water pollution or river training works with, so was the early summer mark the fireflies, the number greatly reduced, many teachers view this, want to make an effort to protect the environment, plus the children will light the bug is nothing new, but also the recollection of childhood for adults.

由于萤火虫只能在干净的河流或湿地生活，所以成了环境优劣的指标；而近年来随着水质污染或河道工程，令曾是初夏标记的萤火虫，数目大减，不少教师有见及此，都希望出一分力保护环境，加上会发光的小虫对小朋友来说是新鲜的事物，又可以让大人回味童真。

In ancient time Eridu is situated on a large lake or lagoon near the Persian gulf and surrounded by reed-lands and marshy areas, with swamps and half-floating islands, where almost literally the earth is created by the interplay between the sweet water Aps? and the salt water (the sea Ti鋗at as stated in the first few lines of the Epic of Creation Enuma eli.

在古时候，伊利都位于波斯湾附近的一个大湖或礁湖上，周围被芦苇和沼泽地围住，夹杂着湿地和半漂浮的岛屿，字面意义上的土地的创造几乎是与甜水相互影响的（阿帕斯和咸水在创世史诗的头几行里提到过）。

Friends of the Everglades and its determined founder have successfully battled the development of airstrips and additional canals that would divert the natural flow of rain through the wetlands,and threaten the very existence of one of nature's great ecosystems.

&大沼泽地之友&与其坚定的创立者一道，成功地阻止了在这里修建临时机场和增开运河的计划，因为那样会改变流经湿地 d小的雨水的自然流向，并威胁到这个大生北美枫是态系统来e 的生存。

Plants like duckweeds float on the surface of still and slow-moving waters, while those with roots and flexible stems can stand in swift-flowing streams. Wetlands are full of vegetation that feeds everything from fish to people.

无论是水面上静止漂浮的浮萍还是缓慢流动的河水，有根的或在急流中得以灵活应变的职务杆茎，湿地丰富的植被喂养着包括从鱼类到人类的大量动物。

The local factors such as topography, vegetations and soil moisture contents, have great influences on the distribution, ground temperatures, and ground ice contents of permafrost. About 50 km of wetlands have been identified along the China-Russia crude oil pipeline route. In these segments, the surficial deposits consist of peat and humic layers on the top of thick ground-ice, or ice-rich permafrost. The frozen ground engineering geology conditions in wetlands generally are the worst for building and operating the pipeline. The hazardous periglacial processes, such as the widespreadpresence of pingos, icings and frost mounds due to the extensive occurrence of the frost-susceptible soils and ample supplies of surface and ground waters in winter pose significant threats on pipeline operation.

地形地貌单元、植被分布、地表水分条件的变化等局部因素对多年冻土的分布和地下冰的赋存产生重要的影响，管道沿线大约分布有50 km左右的沼泽湿地，其表层为腐殖质土及泥炭层，泥炭层下面分布着含土冰层或地下冰，是管道沿线最差的冻土工程地质地段；由于中俄原油管道沿线水系发育多，冻胀丘、冰椎和冰幔等不良冻土现象广泛分布。

The plumules of Phragmites australis growing in the constructed wetland test pool with high-concentration livestock wastewater and clean water were collected,and the total DNA was extracted for RAPD analysis to explore the genetic variation of Phragmites australis under contamination stress of high-concentration livestock wastewater.

为了探讨芦苇在高浓度畜禽废水污染胁迫下遗传特性的变化，将人工湿地试验池中生长的，受高浓度畜禽废水长期污染胁迫的和未受到污染的供试芦苇材料各20个单株幼芽分别混合提取DNA，采用RAPD分子标记技术在160个随机引物中进行筛选，找到3个能够扩增出差异且重复性较好的RAPD引物：S74、S516和S14。

In Wisconsin, authorities are watching dams in this rain-soaked state after a breach nearly emptied Lake Delton, washing away homes and a highway. A swamp of the Midwest is recovering from drenching storms. The weather is blamed for at least 15 deaths.

在威斯康星，当局正监视着这个被暴雨袭击的城市的大坝，大坝上的一道裂缝几乎将Delton的湖水排泄空了，中西部的湿地沼泽地区正从恶劣的暴风雨中慢慢恢复，此次暴雨冲毁了很多房屋和一条高速公路，造成至少15人死亡。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失