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- Title
宁夏沿黄城市带湿地景观格局演变特征及驱动力.
- Authors
高祖桥; 白永平; 周 亮; 乔富伟; 宋龙军; 陈小宁
- Abstract
Wetlands are one of the most productive ecosystems in the world, with functions of water purification, climate regulation, and carbon sinks. Due to the stresses caused by human social development and changes of natural conditions, wetlands have been seriously damaged. We examined the evolutionary law of landscape pattern of wetland along the Yellow River, and acquainted the current situation of wetland resources and dynamic change. Based on satellite images of year 2000, 2009, and 2018 from Landsat, we used landscape indices and geographic detectors to quantitatively analyze the characteristics and driving forces of wetland landscape pattern evolution of the city belt along the Yellow River in Ningxia from 2000 to 2018. The results showed that the wetland area of the city belt along the Yellow River in Ningxia enlarged first and then decreased from 2000 to 2018. The wetland area increased by 52.2 km² in the early stage of the study with an increasing rate of 8.2%, and decreased by 26.8 km² with a reduction rate of 3.9% in the later stage. The wetland was mainly transformed to construction land and unused land, with transfer out area being 166.7 and 158.4 km² respectively. New wetland was mainly Transformed from unused land, forest, and grassland, with an area of 543.1 km². The fragmentation degree of wetland landscape in city belt was increasing, the balanced distribution of all kinds of wetlands was gradually strengthened, the landscape diversity was increasing, and the dominant landscape types were gradually weakening. Natural factors and socio-economic factors jointly affected the evolution of wetland landscape pattern in city belt. Among all socio-economic factors population was the most important one. Among natural factors, precipitation and temperature were important. Other driving factors were relatively weak, but could not be ignored.
- Subjects
NINGXIA Huizu Zizhiqu (China); ECOLOGICAL zones; WATER purification; REMOTE-sensing images; SOCIAL development; WETLANDS; CARBON cycle; FRAGMENTED landscapes
- Publication
Yingyong Shengtai Xuebao, 2020, Vol 31, Issue 10, p3499
- ISSN
1001-9332
- Publication type
Article
- DOI
10.13287/j.1001-9332.202010.013