Publication Date
1985
Location
Kyoto Japan
Description
Studies of phytomass and solar energy conversion efficiency were made on native alpine Kobresia grassland and its improved semi-artificial and artificial grasslands during June 20 to November 20, 1981, at Tianzhu Alpine Grassland Experiment Station of Gansu Agricultural University, China. The results obtained were as follows. 1. Aboveground total phytomass (standing green + standing dead + litter) of Kobresia grassland was the smallest and artificial grassland largest. On the contrary, underground total phytomass (live roots+ dead roots) of Kobresia grassland was the largest and artificial grassland smallest. Aboveground and underground total phytomass of Kobresia grassland was the largest, semi-artificial grassland second and artificial grassland smallest. 2. Aboveground net primary dry matter (DM) and organic matter (OM) production of Kobresia grassland, semi-artificial and artificial grassland were 373.02 and 305.81, 535.86 and 445.92, 948.17 and 697.62 g/m2, respectively. Aboveground and underground total net primary DM and OM production of 3 grasslands were 1243.91 and 969.13, 12211.93 and 969.88, 1584.33 and 1185.33 g/m2, respectively. 3. Total conversion efficiency of solar radiation of aboveground of Kobresia grassland was only 0.1 % ; througl:i fertilization and irrigation i.e. semi-artificial grassland, it may increase to 0.15%; if got tillage and seeding i.e. artificial grassland, it further increased to 0.20%.
Citation
Zizhi, Hu; Jixiong, Sun; Zihe, ZHang; Yinsheng, Zhang; and Changlin, Xu, "Biological Efficiency of Alpine Kobresia Grassland and its Improved Semi-Artificial and Artificial Grasslands" (1985). IGC Proceedings (1985-2023). 77.
(URL: https://uknowledge.uky.edu/igc/1985/ses6/77)
Included in
Agricultural Science Commons, Agronomy and Crop Sciences Commons, Plant Biology Commons, Plant Pathology Commons, Soil Science Commons, Weed Science Commons
Biological Efficiency of Alpine Kobresia Grassland and its Improved Semi-Artificial and Artificial Grasslands
Kyoto Japan
Studies of phytomass and solar energy conversion efficiency were made on native alpine Kobresia grassland and its improved semi-artificial and artificial grasslands during June 20 to November 20, 1981, at Tianzhu Alpine Grassland Experiment Station of Gansu Agricultural University, China. The results obtained were as follows. 1. Aboveground total phytomass (standing green + standing dead + litter) of Kobresia grassland was the smallest and artificial grassland largest. On the contrary, underground total phytomass (live roots+ dead roots) of Kobresia grassland was the largest and artificial grassland smallest. Aboveground and underground total phytomass of Kobresia grassland was the largest, semi-artificial grassland second and artificial grassland smallest. 2. Aboveground net primary dry matter (DM) and organic matter (OM) production of Kobresia grassland, semi-artificial and artificial grassland were 373.02 and 305.81, 535.86 and 445.92, 948.17 and 697.62 g/m2, respectively. Aboveground and underground total net primary DM and OM production of 3 grasslands were 1243.91 and 969.13, 12211.93 and 969.88, 1584.33 and 1185.33 g/m2, respectively. 3. Total conversion efficiency of solar radiation of aboveground of Kobresia grassland was only 0.1 % ; througl:i fertilization and irrigation i.e. semi-artificial grassland, it may increase to 0.15%; if got tillage and seeding i.e. artificial grassland, it further increased to 0.20%.
