Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.3390/w8080339 |
Estimated Grass Grazing Removal Rate in a Semiarid Eurasian Steppe Watershed as Influenced by Climate | |
Wang, Xixi1; Pedram, Shohreh1; Liu, Tingxi2; Gao, Ruizhong2; Li, Fengling2; Luo, Yanyun2 | |
通讯作者 | Wang, Xixi |
来源期刊 | WATER
![]() |
ISSN | 2073-4441 |
出版年 | 2016 |
卷号 | 8期号:8 |
英文摘要 | Grazing removal rate of grasses needs to be determined for various climate conditions to address eco-environmental concerns (e.g., desertification) related to steppe grassland degradation. The conventional approach, which requires survey data on animal species and heads as well as grass consumption per individual animal, is too costly and time-consuming to be applied at a watershed scale. The objective of this study was to present a new approach that can be used to estimate grazing removal rate with no requirement of animal-related data. The application of this new approach was demonstrated in a Eurasian semiarid typical-steppe watershed for an analysis period of 2000 to 2010. The results indicate that the removal rate tended to become larger, but its temporal variation tended to become smaller, from the upstream to downstream. Averaged across the watershed, the removal rate ranged from 63.9 to 401.0 g DM m(-2) (or 22.4 to 60.9%) during the analysis period. As expected, the removal rate in an atmospherically wetter year was higher than that in an atmospherically drier year. Nevertheless, none of the eleven analysis years had a removal rate higher than the threshold value of 65%, above which the risk of grassland degradation would become much greater. |
英文关键词 | degradation erosion evapotranspiration MODIS natural NPP NPP model |
类型 | Article |
语种 | 英语 |
国家 | USA ; Peoples R China |
收录类别 | SCI-E |
WOS记录号 | WOS:000387675500004 |
WOS关键词 | ESTIMATING POTENTIAL EVAPOTRANSPIRATION ; NET PRIMARY PRODUCTION ; LEYMUS-CHINENSIS ; INNER-MONGOLIA ; SOIL ; RESPONSES ; PRECIPITATION ; ECOSYSTEMS ; CHINA |
WOS类目 | Water Resources |
WOS研究方向 | Water Resources |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/196770 |
作者单位 | 1.Old Dominion Univ, Dept Civil & Environm Engn, Norfolk, VA 23529 USA; 2.Inner Mongolia Agr Univ, Coll Water Conservancy & Civil Engn, Hohhot 010018, Peoples R China |
推荐引用方式 GB/T 7714 | Wang, Xixi,Pedram, Shohreh,Liu, Tingxi,et al. Estimated Grass Grazing Removal Rate in a Semiarid Eurasian Steppe Watershed as Influenced by Climate[J],2016,8(8). |
APA | Wang, Xixi,Pedram, Shohreh,Liu, Tingxi,Gao, Ruizhong,Li, Fengling,&Luo, Yanyun.(2016).Estimated Grass Grazing Removal Rate in a Semiarid Eurasian Steppe Watershed as Influenced by Climate.WATER,8(8). |
MLA | Wang, Xixi,et al."Estimated Grass Grazing Removal Rate in a Semiarid Eurasian Steppe Watershed as Influenced by Climate".WATER 8.8(2016). |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。