本文關(guān)鍵詞：明清時(shí)期漢水中下游干堤修防的組織、管理與糾紛，由筆耕文化傳播整理發(fā)布。

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氣象學(xué)

環(huán)境科學(xué)與資源利用

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地質(zhì)學(xué)

地球物理學(xué)

生物學(xué)

農(nóng)業(yè)基礎(chǔ)科學(xué)

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    Based on it, this paper took the Middle and Lower Reaches Tarim River for example from 1759 to 1949, it studied the implementation of the policy by the collection, the reorganization and analysis literature record. If there had been influence of the policy to the environmental changes was discussed?

    基于此，本文選擇1759-1949年塔里木河中下游地區(qū)為研究區(qū)域，，通過(guò)收集、整理和分析歷史文獻(xiàn)中對(duì)該地區(qū)屯墾活動(dòng)、自然環(huán)境狀況的記錄，研究屯墾政策在該地區(qū)的實(shí)施情況，并在此基礎(chǔ)上分析以下問(wèn)題：特定時(shí)期的屯墾政策對(duì)環(huán)境變化有沒(méi)有影響?

短句來(lái)源

    Sensation And Reality:The Description of the River Landscape of the Middle and Lower Reaches of Han River in the Poems and Articles of the Song Dynasty as Well Its Explanations

    感受與事實(shí)之間——宋人詩(shī)文所記漢水中下游河流景觀及其解釋

短句來(lái)源

    THE RELATIONSHIP BETWEEN DROUGHTS,FLOODS AND CLIMATIC CHANGES IN THE MIDDLE AND LOWER REACHES OF THE CHANGJIANG RIVER SINCE LAST 1 000 YEARS

    近1000年長(zhǎng)江中下游旱澇與氣候變化關(guān)系

短句來(lái)源

    A Study on the Historical Changes of the Middle and Lower Reaches of the Bahe River and the Corresponding Influence on the Environment

    灞河中下游河道歷史變遷及其環(huán)境影響

短句來(lái)源

    In fact, there were 56 tea-growing prefectures in the Tang Dynasty, distributed mainly in the middle and lower reaches of the Huaihe River and the Yangtze River.

    唐代共有產(chǎn)茶州府56個(gè),主要分布于淮河流域及長(zhǎng)江流域中下游地區(qū)。

短句來(lái)源

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    A PRELIMINARY STUDY ON THE MIGRATIONS AND THEIR SOCIAL EFFECTS IN THE DISTRICT OF THE MIDDLE AND LOWER REACHES OF THE YELLOW RIVER DURING THE EARLY PERIOD OF THE MING DYNASTY

    明朝前期黃河中下游地區(qū)的移民活動(dòng)及其社會(huì)作用初探

短句來(lái)源

    The Organization, Administration and Conflict in Building and Protecting the Main Dykes at the Middle-lower Reaches of Han River During Ming-Ch'ing Period

    明清時(shí)期漢水中下游干堤修防的組織、管理與糾紛

短句來(lái)源

    During Ming-Ch 'ing period, there was an evident space-time discrepancy on both of the personnel assignment administration and the means of accumulating funds in the profession of building and protecting to the main dykes at the middle-lower reaches of Han River.

    明清時(shí)期漢水中下游漢江干堤的修防在組織與管理、資金來(lái)源與運(yùn)用上皆存在明顯的時(shí)空差異。

短句來(lái)源

    Secondly, it introduced the natural environment of the study area, which is the research' foundation stations troops to open up wasteland and the environmental variation.

    第二部分是塔里木河中下游地區(qū)的自然狀況。 該部分主要介紹研究區(qū)的地理位置、光熱資源以及地形、綠洲情況，這是開展屯墾與環(huán)境變化研究的基礎(chǔ)。

短句來(lái)源

    Since the main channel of Middle and Lower Yangtze Rivers swing bank-to-bank frequently, and the section of river mouth has extended for a considerable distance to the East China Sea, the length of the Yangtze River is about 6300 km.

    由于長(zhǎng)江中下游下流主泓經(jīng)常擺動(dòng),入�？诙我延邢喈�(dāng)延長(zhǎng),故長(zhǎng)江全長(zhǎng)約為6300公里。

短句來(lái)源

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  middle and lower reaches

The chemical composition of water in the upper reaches of Ob' is determined by mercury and complex ore shows; in the middle and lower reaches, by catchments of major tributaries: Tom, Chulym, and, particularly, Irtysh.

Geochronology and isotope geochemistry of the CU-AU Mineralization belt in the middle and lower reaches of the Yangtze River are

In this paper, the Chebyshev polynomials in irregular grids are used in the forecast of precipitation distribution over the middle and lower reaches of the Changjiang River.

St abilization of summer monsoon in middle and lower reaches of the Changjiang river and seasonal transition of East-Asian circu

Using data of 850 hPa pentadal meanθs e and composite wind fields in East China, characteristics of the mean circulation are examined with summer monsoon (SM) stabilized over the Changjiang middle and lower reaches (CMLR).

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Usually a river has several headwaters on its source, but how to define the main source of a river lacks a univerally accepted principle or criterion. Some rivers define their main sources according to their lengths, and others define their main sources according to the traditional habit of the people .Under normal conditions, the traditional habit of the people coincides with the general flow direction of the river course, that is, if we make a survey from the plan map of a river network it looks like a natural...

Usually a river has several headwaters on its source, but how to define the main source of a river lacks a univerally accepted principle or criterion. Some rivers define their main sources according to their lengths, and others define their main sources according to the traditional habit of the people .Under normal conditions, the traditional habit of the people coincides with the general flow direction of the river course, that is, if we make a survey from the plan map of a river network it looks like a natural extention of its way from lower reaches to upper reaches. However, the quantity of water in a river usually doesnot define the main source.The source region of the Yangtze River headwaters is situated in the hinterland of Qinghai - Xizang plateau, which is an unlraveled region, so thah a consensus of opinions about where the main source of the Yangtze River rises is not yet attained .After thorough investigation, among the various headwaters of the Yangtze River, the Tuotuohe River is the longest (including the glacier on headwaters) by length, and the Dangqu River is slightly shorter. As to the criterion of unanimous direction of streams, Garqu River is the smoothest, and the Tuotuohe River next; by the discharge of water, Dangqu River ranks the biggest and Tuotuohe River the second gumming up the above considerations, the Tuotuohe River is both the longest and with approximately the same direction of streams.For this reason, we consider that the Tuotuohe River should be the main source of the Yangtze River.In accordance with the above standpoints, We have computed the length of the rivev section from the headwaters of the Tuotuohe River to Yibin of Sichuan province to be 3174 km; and the length of that section from Yibin to the river mouth about 2806 km.Since the main channel of Middle and Lower Yangtze Rivers swing bank-to-bank frequently, and the section of river mouth has extended for a considerable distance to the East China Sea, the length of the Yangtze River is about 6300 km.

江源水系諸河,地處青藏高原腹地,因人跡罕至,對(duì)那條河是長(zhǎng)江正源,歷史上并沒(méi)有一個(gè)統(tǒng)一的認(rèn)識(shí)可以遵循。通過(guò)考察后,在江源諸河中,論長(zhǎng)度,沱沱河(包括源頭冰川)最長(zhǎng),當(dāng)曲稍次;論河道上下游的一致性,尕爾曲最順,沱沱河其次;而論水量,當(dāng)曲最豐,沱沱河其次。綜合以上因素,我們認(rèn)為沱沱河長(zhǎng)度既長(zhǎng),方向又順,應(yīng)為長(zhǎng)江正源。 綜合上述觀點(diǎn),我們算得:由沱沱河源至四川省宜賓,長(zhǎng)3474公里;宜賓至長(zhǎng)江口約為2806公里。由于長(zhǎng)江中下游下流主泓經(jīng)常擺動(dòng),入海口段已有相當(dāng)延長(zhǎng),故長(zhǎng)江全長(zhǎng)約為6300公里。

During the years of Hong Wu and Yongle in the Ming Dynasty, there appeared several largescaled, organized migrations along the middle and lower reaches of the Yellow River. This article discusses the social background of them, the process and the social functions of such migrations. It focuses on the following points.Each migration in the early years of Ming Dynasty is the result of one of the measures taken by the rulers to prevent the economy depressed by war from decline. The removal of the country's political...

During the years of Hong Wu and Yongle in the Ming Dynasty, there appeared several largescaled, organized migrations along the middle and lower reaches of the Yellow River. This article discusses the social background of them, the process and the social functions of such migrations. It focuses on the following points.Each migration in the early years of Ming Dynasty is the result of one of the measures taken by the rulers to prevent the economy depressed by war from decline. The removal of the country's political center (i.e. the removal of capital from Nanjing to Beijing) greatly diverts the migrations. Such changes stabilized the society then, quickeming the step of the economic blooming and flurishing, and developing the cultural intercourse among the people of the several provinces along the middle and lower reaches of the Yellow River. Especially the large scaled migrations from the area around Shanxi province into Beijing greatly balanced the population, and solidified Beijing's position in politics, economy and military superiority.

明朝洪武、永樂(lè)年間,黃河中下游地區(qū)發(fā)生過(guò)多次有組織的大規(guī)模人口遷移活動(dòng)。本文初步探討了它們的社會(huì)背景、遷移過(guò)程及其在不同時(shí)期的特點(diǎn),論述了人口遷移在穩(wěn)定社會(huì)局勢(shì)、恢復(fù)農(nóng)業(yè)經(jīng)濟(jì)、促進(jìn)文化交流等方面的作用。

This article approaches to the origin of the silkworm and silk-knit industry in China.From some traditions on historical records, and some archaeological finds, it is proved that the original place of the silkworm and silk-knit in dustry was not only one, but multicentres and multiorigins. Original places were mainly distributed in the regions along the lower reaches of the Changjiang River and the middle and lowerr eaches of the Huanghe Rive.They originated from the Huangdi age in the Neolithic age about 5000...

This article approaches to the origin of the silkworm and silk-knit industry in China.From some traditions on historical records, and some archaeological finds, it is proved that the original place of the silkworm and silk-knit in dustry was not only one, but multicentres and multiorigins. Original places were mainly distributed in the regions along the lower reaches of the Changjiang River and the middle and lowerr eaches of the Huanghe Rive.They originated from the Huangdi age in the Neolithic age about 5000 years B.P.. By analysing the geographical conditions in the lower reaches of the Changjiang River and the middle and lower reaches of the Huanghe River, it is not accidental that the silkworm and silk-knit industry originated there.

本文根據(jù)歷史傳說(shuō)、古籍記載、考古發(fā)掘,闡述我國(guó)蠶絲織業(yè)的起源是多中心多源頭的,并從蠶、桑生長(zhǎng)的適宜生態(tài)環(huán)境分析,說(shuō)明黃河中下游及長(zhǎng)江下游地區(qū)為蠶桑絲織業(yè)發(fā)源地的合理性。

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  本文關(guān)鍵詞：明清時(shí)期漢水中下游干堤修防的組織、管理與糾紛，由筆耕文化傳播整理發(fā)布。