查询词典 swamp

The following conclusions have been made in this paper.(1) Based on CO_2 flux data of eddy covariance, variation characteristics of gross primary productivity in four flux observation stations were studied, which are an alpine meadow, an alpine shrub meadow, a swamp alpine meadow and a steppe alpine meadow at Dongxiong. The results show that photosynthetic capacity of the alpine meadow is the highest, and the annual total GPP is 652.2g C/m~2. Daily-differencing approach is used to analyze the random error of CO_2 fluxes measurements. The results show that the distribution of random error follows more closely follows a double-exponential, rather than a normal distribution, capturing the high peak and thick tail, and the random error varies with environment variables, which violates the assumptions for the ordinary least squares fitting with normality and homoscedasticity, consequently, we introduce maximum likelihood method for parameter optimization.

本文主要在以下几个方面开展工作并获得了一些认知和结论：(1)通过分析样带区域内高寒草甸、高寒灌丛、沼泽化湿地和草原化高寒草甸四个通量观测站点草地生态系统总初级生产力变化特征，研究结果表明HBBT矮嵩草草甸生态系统植被光合作用能力较强，年GPP总量为652.2 gC/m~2，明显高于其他三种生态系统；通过利用"单塔日变化法"获得四站点通量观测数据随机误差，结果表明通量观测随机误差概率分布呈现尖峰厚尾的特征，与正态分布相比，更服从双边指数分布，进一步分析表明通量观测随机误差随环境变量(风速、温度和光合有效辐射)的变化而变化，这违背了普通最小二乘法进行生态过程模型参数优化正态分布且误差同质的假设，因此本研究中引入最大似然法进行生态过程模型参数优化。

Instead of calling on some scholar, I paid many a visit to particular trees, of kinds which are rare in this neighborhood, standing far away in the middle of some pasture, or in the depths of a wood or swamp, or on a hilltop; such as the black birch, of which we have some handsome specimens two feet in diameter; its cousin, the yellow birch, with its loose golden vest, perfumed like the first; the beech, which has so neat a bole and beautifully lichen-painted, perfect in all its details, of which, excepting scattered specimens, I know but one small grove of sizable trees left in the township, supposed by some to have been planted by the pigeons that were once baited with beechnuts near by; it is worth the while to see the silver grain sparkle when you split this wood; the bass; the hornbeam; the Celtis occidentalis, or false elm, of which we have but one well-grown;some taller mast of a pine, a shingle tree, or a more perfect hemlock than usual, standing like a pagoda in the midst of the woods; and many others I could mention.

我并没有去访问哪个学者，我访问了一棵棵树，访问了在附近一带也是稀有的林木，它们或远远地耸立在牧场的中央，或长在森林、沼泽的深处，或在小山的顶上；譬如黑桦木，我就看到一些好标本，直径有两英尺：还有它们的表亲黄桦木，宽弛地穿着金袍，像前述的那种一样地散发香味，又如山毛榉，有这样清洁的树干，美丽地绘着苔藓之色，处处美妙呵，除了一些散在各地的样本，在这乡镇一带，我只知道有一个这样的小小的林子，树身已相当大了，据说还是一些被附近山毛榉的果实吸引来的鸽子播下的种子；当你劈开树木的时候，银色的细粒网闪发光，真值得鉴赏；还有，椴树，角树；还有学名为Celtis occidenta lis的假榆树，那就只有一棵是长得好的；还有，可以作挺拔的桅杆用的高高的松树，以及作木瓦用的树；还有比一般松树更美妙的我们的铁杉，像一座宝塔一样矗立在森林中；还有我能提出的许多别的树。

In this swamp , incautious wader might sink easily and vanish unawares .

在这片沼泽地里，轻率的跋涉者很容易就会陷下去，而且在不知不觉中完全消失掉。

The effects of single lead and cadmium stresses on the growth, lipid peroxidation and antioxidant enzyme system of swamp cabbage Ipomoea aquatica Forsk.

研究了不同浓度水平的土壤铅和镉胁迫对空心菜生长及抗氧化酶系统的影响。

However, the Finnish troops in the balance of forces is very adverse circumstances, by virtue of 1927-1939 in the Karelian Isthmus built "Mannerheim line" of the strong fortifications, the use of cold and swamp forests, a favorable position to fight back war , positional warfare, and expendable to surround and annihilate war, except in the Arctic Ocean so Soviet Moldova and Sara Bei Cai rapid progress in the region outside, in the Karelian Isthmus and Ladoga Lake area suffered heavy casualties, the main positions of the Finnish Army did not Jiugong grams.

然而，芬军在力量对比非常不利的情况下，凭藉1927—1939年在卡累利阿地峡修建的"曼纳海姆防线"的坚固工事，利用严寒和沼泽森林的有利地形，展开反击战、阵地战和消耗性围歼战，因此苏军除在北冰洋的贝柴摩和萨拉地区进展较快外，在卡累利阿地峡和拉多加湖一带伤亡惨重，对芬军主阵地久攻不克。

The swamp woodlands of Ireland's first national park, Killarney, provide habitat for abundant wildlife, including the only remaining wild herd of red deer in Ireland.

沼泽地森林的爱尔兰的第一国家公园，基拉尼，提供栖息地给丰富的野生动物，包括仅有的剩余的野生的畜群红鹿在爱尔兰。

They swamp ed out a small landing strip.

他们开辟了一个简易小机场。

The Amur turned out to be not a broad, deep highway to the Pacific but "a swamp no more than three feet deep" that ended at its distant mouth in a liman of shifting sands.

通向太平洋的黑龙江原来并非一条深阔的康庄道，而是"不足三英尺深的沼泽"——远方的入海口是流沙聚集处。

And as I was modeling this mangrove swamp, I was thinking to myself,"How do you put a box around this?"

就当我在建立红树林沼泽时，我也在思考："你如何在周围加个盒子？"

The most productive systems are found amongst swamp and marshland, estuaries, reefs and cultivated land.

最富有生产力的系统出现在沼泽，湿地，河口湾，珊瑚礁和耕田。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了