Comparative Analysis of the Succession of Grazing Grassland in 1987 and 1998 at She-ting Area in Southern Taiwan

• Main Authors: wu chiu yen, 吳秋燕
• Other Authors: yang sheng zehn
• Format: Others
• Language: zh-TW
• Published: 2000
• Online Access: http://ndltd.ncl.edu.tw/handle/09214737810408744314

碩士 === 國立屏東科技大學 === 熱帶農業研究所 === 88 === Comparative Analysis of the Succession of Grazing Grassland in 1987 and 1998 at She-ting Area in Southern Taiwan Chiu-Yen Wu and Sheng-Zehn Yang Graduate Institute of Tropical Agriculture, National Pingtung University of Science and Technology Abstract She-ting area is located on the eastern edge of Kenting terrace in the Hengchun Penisula of southern Taiwan. The aim of this study is to understand the vegetation types and species adaptations from 1987 to 1998 in She-ting area, which was established as a restoration site for Taiwan sika deer (Cervus nippon taiouanus). To evaluate the environmental effects on the grassland vegetation changes of this area, 10 environment factors were observed within 75 stands. The major gradients of the community variation between two different period were determined by canonical correspondence analysis (CCA). It was found that the degree of succession is the most significant factor affecting those variations. Classification of the vegetation types was conducted by the two-way indicator species analysis (TWINSPAN) method on the basis of the primary data matrix of the two periods. The results show that the different vegetation types can be classified as Imperata cylindrica vegetation type and Senna tora vegetation type. The degree of succession of each vegetation type was larger than that of the last period (viz 1987). It indicates that the biomass of this area is gradually increasing. The rate of succession was calculated as + 4.2, which was obtained by comparing the degrees of succession of the two different time periods. From the successive series of the vegetation types, we can conclude that the vegetation in She-ting area is at a progressive succession.