Selection and Evaluation of Soil and Water Conservation Grass in Red-soil Erosion Area

Authors YU Ronggang; ZUO Changqing; YANG Jie; WANG Zhaoyan; LI Xiaoqiang; LIU Baigen

Journal Bulletin of Soil and Water Conservation , 2008,2:28

Abstract 19 kinds of grasses were selected to plant in the granite erosion area, Ningdu County and the quaternary red soil erosion area, De＇an County, Jiangxi Province. In the three year field experiment, the indexes of rate of seedlings emergence, survival rate, average tiller number, vegetation coverage, fresh weight of root, upland part of grass＇s unit weight and biomass, and soil organic matter were investigated. The method of analytic hierarchy process （AHP） and fuzzy mathematics were used to evaluate the grasses. Results show that Palspalum notatum Flugge and Paspalum voettsteinit Hackel can grow well in the two test areas; Melinis minuciflora , Styiosallthes guianensis （Aubi） SW. , Setaria palmifolia. , Kumrnerowia striata （Thunb.）Schindl, and Digitaria sanguinalis can grow well in the granite erosion area; and Eragrostis pilosa, Lolium L. , Cynodon dactylon, Eremochloa ophiuroides, and Sorghum sudaueense can grow well in the quaternary red soil erosion area.

Species covered 狗牙根 Cynodon dactylon 马唐 Digitaria sanguinalis 画眉草 Eragrostis pilosa 棕叶狗尾草 Setaria palmifolia