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- 近藤 順治
- 岡山大学大学院環境学研究科
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- 廣部 宗
- 岡山大学大学院環境学研究科
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- UUGANTSETSEG Khorloo
- Inst. of Geoecology, Mongolian acad. of sci.
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- AMARTUVSHIN Narantsetseg
- Inst. of Botany, Mongolian acad. of sci.
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- 藤田 昇
- 京都大学生態学研究センター
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- 坂本 圭児
- 岡山大学大学院環境学研究科
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- 吉川 賢
- 岡山大学大学院環境学研究科
書誌事項
- タイトル別名
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- Effects of livestock grazing on the surface soil properties in Mongolian Steppe ecosystems along an aridity gradient
- カンソウ テイド ノ コトナル モンゴル ソウゲン セイタイケイ ニ オイテ ホウボク ノ ウム ガ ヒョウソウ ノ ドジョウ トクセイ ニ アタエル エイキョウ
この論文をさがす
抄録
Grazing by large ungulates had both acceleration and deceleration effects on primary productivity and nutrient cycling in grassland ecosystems. The directions of these effects can differ among ecosystems because climate is one of the most important determinant. In Mongolian steppe, the ecosystem type is changed with latitudinal gradient of the aridity from forest-steppe in the north to steppe in the middle to gobi-steppe in the south. Our objective was to clarify the effects of livestock grazing on the surface soil chemical properties in three types of Mongolian steppe ecosystems along an aridity gradient. The soil samples (0.10 cm) were taken from inside and outside of the exclosure fence to analyze soil chemical properties and to determine net nitrogen (N) transformation rates for laboratory incubation. The elements essentially for the plants were decreased and net N transformations were decelerated along aridity with increasing soil pH. The effects of grazing were not prominent for the soil nutrient pools. However, the grazing decelerated net N transformation rates, especially drier incubation condition, and increased soil pH. These results suggested that grazing by large ungulates decelerated nutrient cycling, which might caused by increased alkalinity in Mongolian steppe ecosystems.
収録刊行物
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- 日本緑化工学会誌
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日本緑化工学会誌 36 (3), 406-415, 2010
日本緑化工学会
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詳細情報 詳細情報について
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- CRID
- 1390282680061574400
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- NII論文ID
- 10028099736
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- NII書誌ID
- AN10130633
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- ISSN
- 18843670
- 09167439
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- NDL書誌ID
- 11024463
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- データソース種別
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- JaLC
- NDL
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