草地

And early the next morning, while the dawn was still cool and meadow-larks were singing, Laura rode to the field with Pa in the hayrack.

在接下来的第二天清晨，伴随着草地鹨的歌声和凉爽的黎明，罗拉坐在装着大木框的马车跟爸爸下地去了。

Soil samples were collected from spruce, hemlock and pine forests in central Taiwan.

土壤样品采自台湾中部的云杉、铁杉林与草地。

Dolly Sods once was covered with a dense ancient forest of red spruce and hemlock trees. By the late eighteen hundreds, railroads reached the area. Loggers cut down the huge trees and trains carried the wood to fast-growing cities in nearby states.

道利草地曾经是茂密的原始红杉林和芹叶树，到十九世纪后期，铁路修到了这里，伐木工人将这里的树木都砍了，铁路把这些木头运到了附近各州飞速发展的城市。

To define reason of mineral metabolism disease in yaks, the dynamics of content of trace elements in herbage were studied.

为了探讨牦牛营养代谢疾病的病因，在黄河首曲草地对牧草微量元素含量季节性变化进行了系统的研究。

Long temporal controlled field study with herbivorous animal is essential to investigate the productivity and stability of plant community.

群落稳定性的生态学研究一直缺乏动物利用条件下的长时间梯度田间试验，而混播草地的放牧利用年限是生态脆弱的南方喀斯特山区生态环境建设和资源可持续利用的关键问题之一。

There was a herd of cows in the field, and two of the

草地上有一群牛，其中有两只在聊天。

There are many herds of cattle in the meadow.

牧场上有许多牛群。v。放牧；在草地上吃草

The white areas, would be a high spot in the terrain, and the grass low.

白色区域将是一个较高的地形，而草地很低。

Using the method of geometry correction radiation correction and noise removal to deal with original images. This article probe into thin cloud wiped off from image by homomorphic filter, and handle the topographic normalize routine that eliminating the part of shadow.

依据景观生态分类原则，结合重庆市景观特征，采用最大似然法的监督分类分别提取TM、ETM遥感影像中的重庆市景观类型，分别为水田、旱地、有林地、灌木林地、其他林地、草地、水域、居民点及工矿用地、未利用地九种类型。

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。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。