Ecological programs changed the forest landscape pattern in the Yellow River Basin from 2000 to 2020
摘要
The Yellow River Basin (YRB) is a key ecological barrier in China. The Natural Forest Protection Program (NFPP) and Grain for Green Program (GGP) are ecological restoration programs implemented in response to the deterioration of China’s ecological environment. It is essential to understand how the NFPP and GGP protect forest resources to appreciate how they support the restoration of the forest ecosystem in the YRB.
ObjectivesEvaluating the effects of the two ecological programs on forest resources provides a solid scientific basis for maintaining the forest ecosystem’s stability in the YRB.
MethodsBased on the 30 m resolution land cover products in 2000, 2010, and 2020, this study analyzed the dynamic changes of landscape patterns in the YRB from 2000 to 2020 through GuidosToolbox spatial analysis software.
ResultsIn the past 20 years, the area of cropland in the YRB decreased by 4.13%, while the area of forest and grassland increased by 1.34% and 0.56%, respectively. The core area, which is important for maintaining the stability of the forest ecosystem, increased by 0.55%. The area with low fragmentation increased by 0.91%. In the natural forest, the core area increased by 1.20%. In the range of the GGP, 28.20% of cropland area was transferred out, of which over 80% was converted to forest and grassland.
ConclusionsThese findings demonstrated an improvement in forest area and quality of the YRB between 2000 and 2020. The NFPP and GGP have greatly aided in the restoration of the forest ecosystem, which will support the ecosystem’s high-quality development in the YRB.