Spatial-Temporal Variation Characteristics of NPP in the Heihe River Basin, Northwestern China, in a Recent 10-Year Period Calculated by CASA Model
文献类型：期刊论文
| 作者 | Liu, Wei1; Feng, Qi1; Zhang, Fuping2 |
| 刊名 | JOURNAL OF COASTAL RESEARCH
 |
| 出版日期 | 2017-06-01 |
| 页码 | 36-47 |
| 关键词 | NPP NDVI climate changes eco-environment Heihe River basin |
| ISSN号 | 0749-0208 |
| DOI | 10.2112/SI80-007.1 |
| 通讯作者 | Liu, Wei(weiliu@lzb.ac.cn) |
| 英文摘要 | In this paper, the spatial-temporal variation characteristics of NPP and related factors in the Heihe River basin were analyzed using the meteorological data of the Heihe River basin, SPOT/NDVI data, and other modified mathematical statistical methods. The results show that during the 1999-2010 period the total NPP in the Heihe River basin exhibited a fluctuating increasing trend, reaching 0.3x10(12) gC/a. The multiyear variation value of NPP was 0.19 similar to 601.09 gC/m(2)/a in the whole basin, 3.5 gC/m(2)/a in the upper reaches, 2.06 gC/m(2)/a in the middle reaches, and 0.31 g/m(2)/a in the lower reaches. The NPP of vegetation in the Heihe River basin during January and February tended to slightly decrease, and on average varied between -0.01 and -0.02 gC/m(2)/a, while in June, July, August, and September greatly increased. The NPP of 10 vegetation types exhibited an increasing trend in 2010 compared to 1999, on average increased by 21.02 gC/m(2)/a. Among various vegetation types the increase in the NPP value of swamp vegetation was the largest, reaching 46.24 gC/m(2)/a followed by planted vegetation, steppe types, and meadow types; there values were 39.22 gC/m(2)/a, 32.49 gC/m(2)/a, and 27.63 gC/m(2)/a, respectively. The accumulated NPP in grassland ecosystem in the Heihe River basin was the largest, which is of important significance to the eco-environment of the basin. As viewed for the whole Heihe River basin, the yearly mean cumulative value of NPP of vegetation was negatively related to annual mean temperature and annual total solar radiation but positively related to annual total precipitation, suggesting that water is a limiting factor to the NPP in the Heihe River basin. |
| 收录类别 | SCI ; ISTP |
| WOS关键词 | NET PRIMARY PRODUCTION ; TERRESTRIAL CARBON-CYCLE ; EQUILIBRIUM RESPONSES ; PRIMARY PRODUCTIVITY ; SURFACE DATA ; SATELLITE ; PHOTOSYNTHESIS ; ECOSYSTEMS ; SIMULATION ; BIOSPHERE |
| WOS研究方向 | Environmental Sciences & Ecology ; Physical Geography ; Geology |
| WOS类目 | Environmental Sciences ; Geography, Physical ; Geosciences, Multidisciplinary |
| 语种 | 英语 |
| WOS记录号 | WOS:000405827600007 |
| 出版者 | COASTAL EDUCATION & RESEARCH FOUNDATION |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2557715 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Liu, Wei |
| 作者单位 | 1.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Gansu, Peoples R China 2.Shaanxi Normal Univ, Dept Geog, Xian 710062, Shaanxi, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Wei,Feng, Qi,Zhang, Fuping. Spatial-Temporal Variation Characteristics of NPP in the Heihe River Basin, Northwestern China, in a Recent 10-Year Period Calculated by CASA Model[J]. JOURNAL OF COASTAL RESEARCH,2017:36-47. |
| APA | Liu, Wei,Feng, Qi,&Zhang, Fuping.(2017).Spatial-Temporal Variation Characteristics of NPP in the Heihe River Basin, Northwestern China, in a Recent 10-Year Period Calculated by CASA Model.JOURNAL OF COASTAL RESEARCH,36-47. |
| MLA | Liu, Wei,et al."Spatial-Temporal Variation Characteristics of NPP in the Heihe River Basin, Northwestern China, in a Recent 10-Year Period Calculated by CASA Model".JOURNAL OF COASTAL RESEARCH (2017):36-47. |
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来源：寒区旱区环境与工程研究所
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