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| 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... |
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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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| 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 |
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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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| 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 |
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