With the aid of remote sensing and geographical information system,and by selecting multiple landscape indices including NP,SHID,LSI,IJI and so on,the dynamic variation of landscape pattern of Shaoguan City in 1993 an...With the aid of remote sensing and geographical information system,and by selecting multiple landscape indices including NP,SHID,LSI,IJI and so on,the dynamic variation of landscape pattern of Shaoguan City in 1993 and 2004 was analyzed from the perspective of landscape type and level based on the value of 300 meters size. The result showed that forest landscape of Shaoguan City had been eroded and divided;water landscape was much more stable;farmland landscape enjoyed high import rate and export rate;the construction land was in the process of decentralized non-equilibrium,all of which indicated that the heterogeneity and fragmentation of the overall landscape had increased.展开更多
Based on the data of meteorological elements obtained at Jiujiang Meteorological Station and Lushan Meteorological Station from 1999 to 2008,the temporal variation characteristics of cloud landscape in Lushan Mountain...Based on the data of meteorological elements obtained at Jiujiang Meteorological Station and Lushan Meteorological Station from 1999 to 2008,the temporal variation characteristics of cloud landscape in Lushan Mountain and its relationship with temperature,precipitation,relative humidity and wind speed were analyzed.The results showed that the monthly variation of cloud landscape in Lushan Mountain had two peaks in one year,and the number of days with cloud landscape was the largest in spring and the smallest in autumn.There was no obvious correlation between the monthly average number of days with cloud landscape and monthly average temperature,but there was an obvious positive correlation between the monthly average number of days with cloud landscape and relative humidity.Rainfall usually occurred on the day or the day before the occurrence of cloud landscape.On the day when cloud landscape appears,relative humidity was generally more than 80%,and average wind speed was less than 4.5 m/s.Meanwhile,there was an inversion layer at low altitudes.展开更多
基金Supported by State Natural Sciences Foundation (40771002)~~
文摘With the aid of remote sensing and geographical information system,and by selecting multiple landscape indices including NP,SHID,LSI,IJI and so on,the dynamic variation of landscape pattern of Shaoguan City in 1993 and 2004 was analyzed from the perspective of landscape type and level based on the value of 300 meters size. The result showed that forest landscape of Shaoguan City had been eroded and divided;water landscape was much more stable;farmland landscape enjoyed high import rate and export rate;the construction land was in the process of decentralized non-equilibrium,all of which indicated that the heterogeneity and fragmentation of the overall landscape had increased.
文摘Based on the data of meteorological elements obtained at Jiujiang Meteorological Station and Lushan Meteorological Station from 1999 to 2008,the temporal variation characteristics of cloud landscape in Lushan Mountain and its relationship with temperature,precipitation,relative humidity and wind speed were analyzed.The results showed that the monthly variation of cloud landscape in Lushan Mountain had two peaks in one year,and the number of days with cloud landscape was the largest in spring and the smallest in autumn.There was no obvious correlation between the monthly average number of days with cloud landscape and monthly average temperature,but there was an obvious positive correlation between the monthly average number of days with cloud landscape and relative humidity.Rainfall usually occurred on the day or the day before the occurrence of cloud landscape.On the day when cloud landscape appears,relative humidity was generally more than 80%,and average wind speed was less than 4.5 m/s.Meanwhile,there was an inversion layer at low altitudes.
