Impacts of human activity and natural change on the wetland landscape pattern along the Yellow River in Henan Province  

河南沿黄湿地景观格局及其动态(英文)

作　　者：梁国付 丁圣彦 

机构地区：[1]College of Environment and Planning, Henan University, Kaifeng 475001, China

出　　处：《Journal of Geographical Sciences》2004年第3期339-348,共10页地理学报（英文版）

基　　金：Human Geography provincial keystone subject of Henan University

摘　　要：By using GIS and remote sensing techniques, the paper discusses how human activities have changed along the Yellow River in Henan province, China and how these altered activities have influenced the wetland landscape pattern change from 1987 to 2002. Results show that the total area of the wetland reduces dramatically compared to 1987, the total area of wetland reduces by 19.18%, the number of the patches in 2002 increases by 21.17%, the density increases by 50%, and the total perimeter increases by 1,290,491 m. Disturbed by human activities, landscape diversity index decreases from 1.1740 in 1987 to 0.9803 in 2002. During the last 20 years, the total area of the rice wetland increases, while the others decrease. Among those, the area of the bulrush wetland decreases most. In 1987, it takes 0.5% of the total area, but in 2002, it only takes 0.11%. The interpenetration of human influences on the wetland natural system has been long and close. The impacts of human activities on the spatial pattern of the wetland landscape along the Yellow River in Henan from 1987 to 2002 are great.By using GIS and remote sensing techniques, the paper discusses how humanactivities have changed along the Yellow River in Henan province, China and how these alteredactivities have influenced the wetland landscape pattern change from 1987 to 2002. Results show thatthe total area of the wetland reduces dramatically compared to 1987, the total area of wetlandreduces by 19.18%, the number of the patches in 2002 increases by 21.17%, the density increases by50%, and the total perimeter increases by 1,290,491 m. Disturbed by human activities, landscapediversity index decreases from 1.1740 in 1987 to 0.9803 in 2002. During the last 20 years, the totalarea of the rice wetland increases, while the others decrease. Among those, the area of the bulrushwetland decreases most. In 1987, it takes 0.5% of the total area, but in 2002, it only takes 0.11%.The interpenetration of human influences on the wetland natural system has been long and close. Theimpacts of human activities on the spatial pattern of the wetland landscape along the Yellow Riverin Henan from 1987 to 2002 are great.

关 键 词：landscape pattern change the Yellow River FLOODPLAIN remote sensing 

分 类 号：P901[天文地球—自然地理学]