| Research on the spatial-temporal dynamic of ecological service value in Northwest Arid Areas |
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| DOI：10.7606/j.issn.1000-7601.2017.06.33 |
| Key Words: ecological service value spatial-temporal dynamic Northwest Arid Areas |
| Author Name | Affiliation | | TIAN Long | College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China | | ZHANG Qing-feng | College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China
Key Lab for Agricultural Resources and Environmental Remediation in Loess Plateau of Agriculture Ministry of China, Yangling, Shaanxi 712100, China
Institute of Water Saving Agriculture in Arid Areas of China, Northwest A&F University, Yangling, Shaanxi 712100, China | | TA Na | College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China | | ZHANG Hui | College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China | | DONG Yan | College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China |
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| Abstract: |
| In order to investigate the spatial-temporal variability of ecological service value (ESV) in Northwest Arid Areas, the ESV was calculated based on related data from 2004 to 2012. Results showed that: (1) The whole ESV in 2012 has increased 166.1 billion yuan than 2004 in Northwest Arid Areas, but the ESV per person was reduced 8 yuan correspondingly. This explained that the population growth rate was higher than the ESV growth rate, so the population growth rate should be appropriately controlled. (2) The change rate of ESV in each Province and Region in Northwest Arid Areas was order as Gansu＞North-Central Shaanxi＞Xinjiang＞West-central Inner Mongolia＞Qinghai＞Ningxia, and only Ningxia and Qinghai was kept as a negative change. (3) The value of the coordination degree of ecological economic during 2004 to 2014 in Northwest Arid Areas was 0.33, it indicated a mild coordination state for the ecological enviroment and economic development; (4) The sensibility index was less than 1, it explained that the ESV in Northwest Arid Areas was relatively weak to the flexibility of ecological service coefficient. This research results were genuine and believable. During research period, the land-use change has achieved significant ecological benefits. This study provides a good enviroment platform for economical construction and social development in Northwest Arid Areas. |
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