Many of them settled down , lived in houses built on their patch of the grassland .
很多人都定居了下来,住在修建在他们修补的草地上的房子里。
The lighter green land in the southeast was once forested , but is now grassland or agriculture .
西南部浅绿色的土地曾覆以森林,现在则变为草地或农田。
Besides desertification and grassland shrinkage , the region 's lakes and wetlands are also drying up , experts say .
专家表示,除了沙漠化和草地退化,本地区的湿地和湖泊也在逐渐干枯。
Global warming alone is predicted to favour the conversion of woodland to grassland , and dr balch thinks her work shows that wildfires may accelerate the process .
全球变暖本身就被预言会助长林地向草地的退化,balch博士认为她的工作说明了山火会加速这一过程。
Some sites with high animal biodiversity , like the kenyan grassland site , are considered more at risk due to land use and population increase .
The bbc news article : biomass energy " could be harmful " , highlighted the negative aspects of growing energy crops on ancient grassland and the marginal superiority of waste wood over purpose-grown biomass crops .
Extensive areas of grassland in the upper tropical andes , south america , have already been planted with pine trees , paid for by carbon credit schemes .