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Registros recuperados: 6
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Effects of Cutting and Grazing on Vegetation and Productivity of Shrub-steppe in the Loess Plateau, North-west China OAK
Hongo, Akio; Cheng, Jimin; Ichizen, Nobumasa; Toukura, Yuji; Devee, Enkhee; Akimoto, Masahiro; 本江, 昭夫; 程, 積民; 一前, 宣正; 藤倉, 雄司; デビィ, エンク; 秋本, 正博.
The Loess Plateau, situated in north-west China, has been subjected to degradation of vegetation owing to overgrazing. In order to clarify the effects of grazing and cutting on vegetation and productivity of shrub-steppe, the study was carried out from May in 1989 to October in 1991 in the Pastoral Preserving Zone of Yunwu Mountain. The vegetation was monthly surveyed, and DM weights of dominant species were separately measured. Soil samples were taken at three selected sites and one overgrazed site and these chemical analysis were made. Relative abundance of species was calculated on the base of the total frequency of 7835. Gramineae showed the highest value (26 %), followed by Compositae (24 %) and Leguminosae (12 %). During 3 experimental years, the...
Palavras-chave: Loess Plateau; Overgrazing; Rehabilitation; Shrub-steppe and Stipa; 黄土高原; 過放牧; リハビリ; かん木ステップ; ハネガヤ.
Ano: 2005 URL: http://ir.obihiro.ac.jp/dspace/handle/10322/81
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Morphological features of polyploidy populations of Astragalus adsurgens PALL. collected from the Loess Plateau in China and Hokkaido in Japan OAK
Hongo, Akio; Kita, Fumiji; Iwashita, kunihiro; Kudho, Makiko; 本江, 昭夫; 喜多, 富美治; 岩下, 有宏; 工藤, 麻紀子.
Palavras-chave: Astragalus adsurgens; Loess Plateau; Morphology; Polyploid; ムラサキモメンズル; 黄土高原; 形態; 倍数体.
Ano: 1996 URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1357
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The Habitat of Astragalus adsurgens PALL. Populations Indigenous to Yunwu Mountain in the Loess Plateau, North-west China OAK
HONGO, Akio; KITA, Fumiji; TAKAHASHI, Hidenori; ZOU, Houyan; CHENG, Jimin; ZHAO, Zhiyi; 本江, 昭夫; 喜多, 富美治; 高橋, 英紀; 鄒, 厚遠; 程, 積民; 趙, 志義.
http://www.obihiro.ac.jp/~library/kenkyu.html
Palavras-chave: Astragalus adsurgens; Loess Plateau; Ordination; Shrub-steppe; Slope directions.
Ano: 1992 URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3134
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Vegetation recovery in Loess Plateau in China OAK
Ichizen, Nobumasa.
2003年8月28日とかちプラザで開催、日本ユネスコ国内委員会主催の帯広農村開発教育国際セミナー(OASERD)国際連合ユネスコアジア太平洋地域教育開発計画事業(APEID)シンポジウム「地球にやさしい農業をめざして : 緑地回復と持続的農業」講演資料
Palavras-chave: Loess Plateau; Vegetation recovery; Wild plants; Switchgrass; Smooth bromegrass.
Ano: 2003 URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1904
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The cover-management factor (C) on woodlands of the hilly areas of the Loess Plateau in North China Phyton
Wei,TX; Liu,YH.
Soil erosion is one of most serious environmental and production problems on the Loess Plateau in China. The objectives of this study were to quantify the influence of forest vegetation on soil erosion on slope areas in the Loess Plateau. This was made by using the subfactor method to calculate the vegetation cover management factor (C) of the Universal Soil Loss Equation (USLE). Proper local subfactor parameter values were obtained to ofer a theoretical basis and practical guidance for studying the relationship between vegetation and soil erosion on the Loess Plateau. Tree subfactors including prior land use (PLU), canopy cover (CC), surface cover (SC), surface Roughness (SR), soil moisture (SM), and covermanagement factor (C) were observed at three plant...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Loess Plateau; Forest vegetation; Soil erosion; Universal Soil Loss Equation; Vegetation Cover and management factor.
Ano: 2016 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-56572016000200019
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The nutrient accumulation pattern and cycling in natural secondary forests in North China: A case study from the Caijiachuan watershed, Shanxi Province Phyton
Wei,TX; Zhang,XJ.
In order to examine the nutrient content, and the distribution and accumulation patterns of individual nutrients in the natural secondary forests (NSFs), sample NSF plots were selected in the Caijiachuan watershed on the Loess Plateau. On the basis of a comprehensive field inventory to the NSFs in Caijiachuan watershed, a 40 m × 40 m sample plot was selected as the representative plot. Each tree plant was then measured to select the standard tree in accordance with a diameter-scale. For measurement of the biomass in the above-ground part of the tree, it was divided into parts and measured. The study measured the concentration of the 5 major macronutrients (namely N, P, K, Ca and Mg) and the 8 major micronutrients (namely Cd, Fe, Mn, Cu, Zn, Pb, Ni and B)...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Biomass; Biological cycling; Loess Plateau; Microelements; Nutrient elements; China.
Ano: 2014 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-56572014000200001
Registros recuperados: 6
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