研究进展
 您的位置: 首页>科学研究>研究进展
Long-term water balance and sustainable production of Miscanthus energy crops in the Loess Plateau of China. Biomass and Bioenergy,2014,62:47-57.

 Long-term water balance and sustainable production of Miscanthus energy crops in the Loess Plateau of China

Wei Liu, Jia Mi, Zhihong Song, Juan Yan, Jianqiang Li, Tao Sang

Abstract:

Sustainable production of second-generation energy crops on marginal land holds a great potential for renewable energy development. Because a vast area of marginal land is located in the arid and semiarid regions of the world, water shortage is the most serious environmental limitation. In this study, we developed a water balance model to address the question of whether Miscanthus energy crops can be sustainably produced in the Loess Plateau of China, a region of more than 60 million hectares particularly abundant in semiarid marginal land. The simulation of 20-year soil water content in bare soil, the winter wheat field, and the Miscanthus field across the Loess Plateau suggested that the long-term production of Miscanthus would not cause water depletion in deep soil. This finding addressed a serious concern that growing high-biomass plants in the Loess Plateau might lead to deep-soil water depletion, which was suggested to be the cause of previous failure of afforestation. Planting Miscanthus was effective in reducing surface runoff and consequently preventing water and soil loss in this heavily eroded region. The model and analyses illustrated where in the Loess Plateau this perennial energy crop could be produced with stable and sufficient yield.

[点击下载原文]

2014-08-21发布 阅读1847次
中国科学院北方资源植物重点实验室
电话:010-6283 6243  传真:010-6259 0843  地址:北京香山南辛村20号
技术支持  iPlant.cn  后台管理
中国科学院植物研究所 版权所有 京ICP备05055294号