|
原文 |
正确的阅读过程 |
|
【1】Neotropical coastal mangrove forests are usually “zonal,” with certain mangrove species found predominantly in the seaward portion of the habitat and other mangrove species on the more landward portions of the coast. 【2】The earliest research on mangrove forests produced descriptions of species distribution from shore to land, without exploring the causes of the distributions.
|
核心段意：Neotropical coastal mangrove forests（这个完全不知道是什么的东西）分区分布，但早期研究没探索过为什么（看来下面要探索为什么分区）。
从功能上来说，【1】指出zonal这个现象，【2】开启这个现象下亟待探索的话题。 |
|
【1】The idea that zonation is caused by plant succession was first expressed by J. H. Davis in a study of Florida mangrove forests. 【2】According to Davis’ scheme, the shoreline is being extended in a seaward direction because of the “land-building” role of mangroves, which, by trapping sediments over time, extend the shore. 【3】As a habitat gradually becomes more inland as the shore extends, the “land-building” species are replaced. 【4】This continuous process of accretion and succession would be interrupted only by hurricanes or storm flushings.
|
核心段意：提出第一个解释，zonal(zonation)现象是有植物迭代形成的。
【1】提出第一个解释的名字—plant succession。是谁第一个提出的这种信息不重要，但是plant succession这个词你看了也不知道啥意思，所以这句话整体就没什么用【2】开始解释plant succession的过程，上一句没用，这句要开始仔细读【3】继续解释plant succession的过程，过程比较长，一句话说不完【4】补一句这个过程中的意外情况，都开始讲意外了，说明主体讲完了，而且意外也不是重点信息，别记。 |
|
【1】Recently the universal application of Davis’ succession paradigm has been challenged. 【2】It appears that in areas where weak currents and weak tidal energies allow the accumulation of sediments, mangroves will follow land formation and accelerate the rate of soil accretion; succession will proceed according to Davis’ scheme. 【3】But on stable coastlines, the distribution of mangrove species results in other patterns of zonation; “land building” does not occur.
|
核心段意：但上段这个理论也不都对。
【1】上文理论被挑战了【2】这个理论在有些地理情况下成立【3】在其他地理情况下，上段所说的结果不出现 |
|
【1】To find a principle that explains the various distribution patterns, several researchers have looked to salinity and its effects on mangrove. 【2】While mangroves can develop in fresh water, they can also thrive in salinities as high as 2.5 times that of seawater. 【3】However, those mangrove species found in freshwater habitats do well only in the absence of competition, thus suggesting that salinity tolerance is a critical factor in competitive success among mangrove species. 【4】Research suggests that mangroves will normally dominate highly saline regions, although not because they require salt. 【5】Rather, they are metabolically efficient (and hence grow well) in portions of an environment whose high salinity excludes plants adapted to lower salinities. 【6】Tides create different degrees of salinity along a coastline. 【5】The characteristic mangrove species of each zone should exhibit a higher metabolic efficiency at that salinity than will any potential invader, including other species of mangrove.
|
核心段意：Neotropical coastal mangrove forests（这个完全不知道是什么的东西）的分区分布是由因为水的不同盐度。
【1】为了解决上面的问题，引出了盐度的概念【2】背景介绍—这玩意儿耐盐【3】接着2深入说，耐盐的目的是为了竞争力【4】重复说3的意思，盐度高的地方这玩意儿繁茂 【5】还重复说3的意思—这说明3太重要了【6】出了个新背景条件—潮水造成不同的地方盐度不同【7】答案呼之欲出，这句话不读懂肯定死了，多读两遍—每一个区里最耐盐的这个玩意儿完胜其他所有物种（从而实现zoning） |
