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裸地地表的土壤侵蚀过程研究——以日本田上山荒弃地为例
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作者 赵伟 胡克 +1 位作者 木本秋津 水山高久 《武汉大学学报(理学版)》 CAS CSCD 北大核心 2004年第4期532-532,共1页
关键词 土壤侵蚀深度 泥沙量 泥沙输移量 田上山 径流
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The Scale of Constructing Mountainous Cities in Yunnan Province based on “Benchmark” Farmlands
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作者 许明军 杨子生 《Agricultural Science & Technology》 CAS 2015年第7期1558-1561,共4页
In 2011, Yunnan provincial committee and government proposed the strat- egy of constructing mountainous cities in order to protect farmlands and guarantee crop safety, which makes full use of hills and gentle-slopes a... In 2011, Yunnan provincial committee and government proposed the strat- egy of constructing mountainous cities in order to protect farmlands and guarantee crop safety, which makes full use of hills and gentle-slopes and transforms land use pattern. However, social and economic development performs unevenly in Yun- nan, supplemented by varied geographical conditions, so that constructing mountain- ous cities should proceed as per local conditions. The research proposed the con- trol of constructing mountainous cities provided crop safety under the principle of farmland protection and measured the quantities of demanded construction lands ac- cording to science of population prediction and ekistics, based on which the control scales of constructing mountainous cities were determined by multiplying basic farm- land coefficient and the area of newly increased construction lands. The research is of significance for guiding the construction of mountainous cities and avoiding the occupation of construction lands on farmlands. 展开更多
关键词 Constructing mountainous cities Cultivated land protection Food safety Coefficient of "Benchmark" farmlands Scale of mountainous cities
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