Feeding solution: Crop-livestock integration via crop-forage rotation in the southern Tibetan Plateau
文献类型：期刊论文
| 作者 | Duan, Cheng1,2; Shi, Peili1,2 ; Zong, Ning1; Wang, Jingsheng1; Song, Minghua1; Zhang, Xianzhou1,2
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| 刊名 | AGRICULTURE ECOSYSTEMS & ENVIRONMENT
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| 出版日期 | 2019-11-15 |
| 卷号 | 284页码:10 |
| ISSN号 | 0167-8809 |
| 关键词 | Forage production Growing degree days Livestock carrying capacity Grazing pressure index Yarlung Tsangpo Watershed Tibetan Plateau |
| DOI | 10.1016/j.agee.2019.106589 |
| 通讯作者 | Shi, Peili(shipl@igsnrr.ac.cn) |
| 英文摘要 | Separated, specialized crop and forage production has a long history on the Tibetan Plateau. Such isolated pattern has led to current concerns of intensified agriculture, environmental degradation and forage shortage in the increasing pressures of population and livestock growth. To tackle the predicament of feed shortage, an alternative to specialized agriculture is crop-forage rotation for potential crop-livestock integration (CLI). However, its feasibility is understudied and the potential remains unanswered in the southern Tibetan Plateau. Based on the analyses of grazing pressure index and growing degree days (GDD), we examined the practicability and modes of crop-forage rotation for feed solution in the middle reaches of the Yarlung Tsangpo Watershed (YTW). Additionally, cultivated land area suitable for forage rotation after crop harvest was defined. Livestock carrying capacity and grazing pressure indices under forage rotation were compared with those only with rangeland and crop residues. We found that the average number of livestock maintained about 9 million standard sheep unit (SU) in the period 2000-2015, which exceeded the carrying capacity provided by rangeland and crop residues. Growing season length are about 200 days ranging from late April to early November, with daily average temperature >= 5 degrees C and over 1500 GDD in the Yarlung Tsangpo River valley. About 158,377 ha, accounting for 74.4% of the cultivated land is suitable for annual forage rotation after crop harvest. The appropriate period for annual forage rotation is ca. 80 days, i.e. from 20th August to 8th November after spring crop harvest and from 1st August to 20th October after winter crop harvest. In addition, the information of GDD also provides elevational thresholds for implementing forage rotation practice in the future. The upper limits for forage rotation are 4000 m after spring crop harvest and 4500 m after winter crop harvest. The grazing pressure indices in most counties can be substantially reduced after filling feed gaps through crop-forage rotation. We demonstrate that crop-forage rotation could be a good solution to forage deficits. These findings also provide insights into promising potential for crop-livestock integration to alleviate grazing pressure in the southern Tibetan agricultural area. However, adoption will depend on farmers' preference and market factors. Further efforts are needed to encourage farmers' involvement into the forage rotation by policy guidance. |
| WOS关键词 | BARLEY DISTILLERS GRAINS ; PISUM-SATIVUM L. ; SUSTAINABLE INTENSIFICATION ; RANGELAND DEGRADATION ; GRAZING EXCLUSION ; PLANT DIVERSITY ; SOIL QUALITY ; CORN YIELD ; SYSTEMS ; FERMENTATION |
| 资助项目 | National Key Research and Development Program of China[2016YFC0502001] ; National Key Research and Development Program of China[2016YFC0501803] |
| WOS研究方向 | Agriculture ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:000500212000011 |
| 资助机构 | National Key Research and Development Program of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/130348]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Shi, Peili |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Duan, Cheng,Shi, Peili,Zong, Ning,et al. Feeding solution: Crop-livestock integration via crop-forage rotation in the southern Tibetan Plateau[J]. AGRICULTURE ECOSYSTEMS & ENVIRONMENT,2019,284:10. |
| APA | Duan, Cheng,Shi, Peili,Zong, Ning,Wang, Jingsheng,Song, Minghua,&Zhang, Xianzhou.(2019).Feeding solution: Crop-livestock integration via crop-forage rotation in the southern Tibetan Plateau.AGRICULTURE ECOSYSTEMS & ENVIRONMENT,284,10. |
| MLA | Duan, Cheng,et al."Feeding solution: Crop-livestock integration via crop-forage rotation in the southern Tibetan Plateau".AGRICULTURE ECOSYSTEMS & ENVIRONMENT 284(2019):10. |
入库方式： OAI收割
来源：地理科学与资源研究所
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