检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
作 者:张源润[1] 赵庆丰 蔡进军[1] 董立国[1] 王月玲[1] 季波[1]
机构地区:[1]宁夏农林科学院荒漠化治理研究所,银川750002 [2]宁夏林业技术推广总站,银川750004
出 处:《干旱区资源与环境》2007年第7期130-134,共5页Journal of Arid Land Resources and Environment
基 金:国家"十五"国家科技攻关课题"半干旱退化山区生态农业建设技术与示范(2000BA606A-04)
摘 要:半干旱退化山区干旱与水土流失并存,降雨量时空分配不均,且水热不同步(在春夏,植物常因缺水而枯死),致使生态环境建设中恢复植被的难度大。为此,采用工程整地措施与灌草立体配置模式,发展集流灌草植被。集蓄土壤水分,随着时间的延续土壤水分可不断得到补充和调节,促进灌草植被的快速恢复,实现林业经济的可持续发展。Drought and soil erosion are coexist in half arid degenerated mountainous area. Where rainfall assignment is uneven in space and time, water and heat are not synchronization (in the Spring and Summer, plants are frequently die for lack of the water). So that it is difficult to restore the vegetation in ecological environment construction. Therefore, The project adopted the shrub - grass patterns to development vegetation for collection of water. Along with the time the soil moisture could obtain supplement and adjustment, vegetation world be restorated fastly.
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:18.224.184.62