A simulative study on effects of climate warming on nutrient contents and in vitro digestibility of herbage grown in Qinghai-Xizang Plateau
文献类型：期刊论文
| 作者 | Xu, SX; Zhao, XQ; Sun, P; Zhao, TB; Zhao, W; Xue, B |
| 刊名 | acta botanica sinica
 |
| 出版日期 | 2002-11-01 |
| 卷号 | 44期号:11页码:1357-1364 |
| 关键词 | climate warming Daban Mountain temperature herbage nutrient contents in vitro digestibility |
| 合作状况 | 国内 |
| 中文摘要 | the increasing trend of air temperature along with the climate warming has been accepted gradual-ly by scientists and by the general public. qinghai-xizang plateau, a unique geographic unit due to high-altitude climate, is one of the most susceptible regions to climate warming. its ecosystem is very fragile and sensi-tive to climate change. in order to get a better understanding of the impacts of climate warming on the nutrient contents of herbage grown in qinghai-xizang plateau, a simulative study was implemented at daban moutain by using temperature differences resulted from sites selected at different altitudes and nutrient contents and in vitro digestibility were determined for assessing the quality of the grown herbage. there were significant downtrends in crude protein (cp), ether extract (ee) and nitrogen free extract (nfe) contents of herbage along with the increase of temperature. it had a positive correlation between temperature and content of acid detergent fibre (adf), acid detergent lignin (adl) in herbage. in vitro digestibility of herbage decreased along with the in-crease of temperature. the results of this study indicated that climate warming significantly influence nutrient contents and in vitro digestibility of herbage grown in qinghai-xizang plateau. it is suggested that the future climate warming especially the gradual rise of the night temperature could cause negative effect on herbage quality grown in qinghai-xizang plateau by decreasing cp, ee, and nfe contents and increasing some indi-gestible ingredients such as crude fibre (cf), neutral detergent fibre (ndf), adf, and adl. this, conse-quently, decreases the ruminant assimilation ability. |
| 英文摘要 | the increasing trend of air temperature along with the climate warming has been accepted gradually by scientists and by the general public. qinghai-xizang plateau, a unique geographic unit due to high-altitude climate, is one of the most susceptible regions to climate warming. its ecosystem is very fragile and sensitive to climate change. in order to get a better understanding of the impacts of climate warming on the nutrient contents of herbage grown in qinghai-xizang plateau, a simulative study was implemented at daban moutain by using temperature differences resulted from sites selected at different altitudes and nutrient contents and in vitro digestibility were determined for assessing the quality of the grown herbage. there were significant downtrends in crude protein (cp), ether extract (ee) and nitrogen free extract (nfe) contents of herbage along with the increase of temperature. it had a positive correlation between temperature and content of acid detergent fibre (adf), acid detergent lignin (adl) in herbage. in vitro digestibility of herbage decreased along with the increase of temperature. the results of this study indicated that climate warming significantly influence nutrient contents and in vitro digestibility of herbage grown in qinghai-xizang plateau. it is suggested that the future climate warming especially the gradual rise of the night temperature could cause negative effect on herbage quality grown in qinghai-xizang plateau by decreasing cp, ee, and nfe contents and increasing some indigestible ingredients such as crude fibre (cf), neutral detergent fibre (ndf), adf, and adl. this, consequently, decreases the ruminant assimilation ability. |
| WOS标题词 | science & technology ; life sciences & biomedicine |
| 学科主题 | 植物学 |
| 类目[WOS] | biochemistry & molecular biology ; plant sciences |
| 研究领域[WOS] | biochemistry & molecular biology ; plant sciences |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000179410400016 |
| 公开日期 | 2009-11-24 |
| 源URL | [http://ir.nwipb.ac.cn/handle/363003/683]  |
| 专题 | 西北高原生物研究所_中国科学院西北高原生物研究所 |
| 作者单位 | Chinese Acad Sci, NW Plateau Inst Biol, Xining 810001, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, SX,Zhao, XQ,Sun, P,et al. A simulative study on effects of climate warming on nutrient contents and in vitro digestibility of herbage grown in Qinghai-Xizang Plateau[J]. acta botanica sinica,2002,44(11):1357-1364. |
| APA | Xu, SX,Zhao, XQ,Sun, P,Zhao, TB,Zhao, W,&Xue, B.(2002).A simulative study on effects of climate warming on nutrient contents and in vitro digestibility of herbage grown in Qinghai-Xizang Plateau.acta botanica sinica,44(11),1357-1364. |
| MLA | Xu, SX,et al."A simulative study on effects of climate warming on nutrient contents and in vitro digestibility of herbage grown in Qinghai-Xizang Plateau".acta botanica sinica 44.11(2002):1357-1364. |
入库方式： OAI收割
来源：西北高原生物研究所
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