Results 11 to 20 of about 4,000 (148)
Evaluation and Source of Heavy Metal Pollution in Surface Soils in Typical Alpine Agricultural Areas of Qinghai Province [PDF]
, 2023 BACKGROUNDHeavy metal pollution in soils is often the result of multiple genetic sources and action paths. Simple identification of the sources of heavy metals is not enough to provide sufficient information for the control of regional heavy metal ...
Jianqiang LI +5 more
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Spatial composition and premise arrangement of traditional Manchu village in Northeast China
JAPAN ARCHITECTURAL REVIEW, Volume 3, Issue 3, Page 346-358, July 2020., 2020 Spatial composition has changed massively even also in Shengli Village, a traditional Manchu village, because of the land and agricultural policies carried out by the government after the foundation of People's Republic of China. Especially according to the political compactification of residential area executed in the late 1960's, farmland behind the ...
Akira Ushijima +3 more
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Water Use Strategy of Reaumuria Songarica Population in Steppe Desert Region Based on Spatial Distribution [PDF]
, 2023 [Objective] The relationship between water adaptation and the distribution pattern of desert shrubs at the regional scale was studied and the process and mechanism of plant population response to environment in arid and semi-arid areas was analyzed in ...
Dong Lei +6 more
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Land Use Change and Its Carbon Effect in Dongting Lake Basin During 1980—2020 [PDF]
, 2023 [Objective] The land use change pattern and its carbon effect in the main grain producing areas were investigated in order to provide a basis for restructuring land use and for low carbon economic development.
Luo Mengyi +4 more
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ドジョウ スイブン カクサン ケイスウ ソクテイホウ ノ ケントウ [PDF]
, 1990 【はじめに】降雨や灌漑，土壌表面からの蒸発，植物根による吸水などによって引き起こされる土壌水の移動は，湛水下の水田作土や地下水面下などの特殊な場合を除けば，ほとんどが不飽和の土壌中で生じている.こうした不飽和土壊中での水の流れを解析するには，土嬢の透水係数あるいは水分拡散係数を知ることが不可欠である.よく知られているように飽和土壌中で、の透水係数は一定値をとり，測定は容易である.これに対して不飽和土嬢中での透水係数や水分拡散係数は，水分量変化に伴って数オーダー以上の範囲で変化するため測定は図難であり ...
? 中有 +4 more
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Integrative Conservation, Volume 4, Issue 2, Page 246-253, June 2025.After the great Chinese poet Qu Yuan (屈原) was exiled to Xupu (溆浦) county in Hu' nan province, he described the forest there as follows: “mysterious is the deep forest, the place where Yuán yòu dwell (深林杳以冥冥兮,乃猿狖之所居).” What is the referent of the name Yuán yòu in this sentence?
Kefeng Niu
wiley +1 more source
Integrative Conservation, Volume 4, Issue 1, Page 71-84, March 2025.Gaoligong Mountain is home to a large number of rare and endangered species, but the effectiveness of conservation measures in the Gaoligong Mountain Nature Reserve remains uncertain. We predicted the potential distribution areas of 361 rare and endangered wild plants in southern Gaoligong Mountain under current and future climate change scenarios and ...
Yong‐Jing‐Wen Yang +3 more
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大学共同利用機関法人人間文化研究機構 総合地球環境学研究所報 [PDF]
, 2007 巻頭対談地球研を触媒作用で光を放つ場に！総合地球環境学研究所|立本成文同副所長|秋道 智彌特集１ 研究プロジェクトより森は海の恋人か？-巨大魚付林の立証と保全にむけてアムール・オホーツクプロジェクト|白岩孝行特集２ 研究プロジェクトより列島に人間と自然の共存の歴史を求める列島プロジェクト|湯本貴和特集３ 新しい研究プロジェクト決定第7回プロジェクト評価委員会により新しい研究プロジェクト決定プログラム主幹|佐藤洋一郎2007年度本研究[プレリサーチ]紹介2007年度予備研究[フィージビリティ・スタディ ...
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The Development of Rice Cultivation in Heilongjiang Province since the 1980s and the Factors Contributing to It [PDF]
, 2014 本稿は，黒竜江省の稲作が①なぜ1980 年に入ってから急速に拡大することができたのか，②一般農村と国有農場における稲作拡大の具体像はどのようなものだったのか，を明らかにしようとするものである．まず①では，1970 年代まで稲作が拡大しなかった要因を検討し，その理由が立枯病にあったことを究明した．そして，1979 年から育苗用土のph 値調整技術を含む日本の稲作技術が黒竜江省に導入されたことにより，立枯病は克服され，技術面のネックが解消された．育苗用土のph ...
LI Haixun, 李 海訓
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