共和盆地天然草地牧草产量与水、热因子的灰色关联度分析

来源 :中国草食动物 | 被引量 : 0次 | 上传用户:snelgar
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
应用灰色关联度方法,对位于青藏高原内陆的共和盆地1985—2005年21年间天然草地产草量与水、热两因子的关联程度进行分析。结果表明:水、热两因子与产草量的关联度基本相近,但在该区域降水量相对稳定的情况下,热量条件是主导因子,尤其是4—8月温度的高低,是决定当年天然草地产草量的关键因素。 By using the method of gray relational degree, the correlation between grassland productivity and water and heat two factors during the 21 years from 1985 to 2005 in the Republican Basin inland of the Qinghai-Tibet Plateau was analyzed. The results showed that the correlation between water and heat was similar to that of grass yield. However, when the precipitation in this area was relatively stable, the heat condition was the dominant factor, especially the temperature in April-August, Grassland grass production of the key factors.
其他文献
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生、测量监控等方面人手,介绍了S226海滨大桥
期刊
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生、测量监控等方面人手,介绍了S226海滨大桥
湾仔旧区更新项目位于低密度湾仔旧区.老树及小巷的包容性成为都市客厅先天条件.独特空间一一区内绿洲,让居民于城市心脏区休息.开发商与区议会公私合营项目,透过小店改造的
期刊
<正>LI Rong-de, doctoral supervisor, was born in October 1960. He graduated from Mechanical Department, Gansu University of Technology in 1982, and received
期刊
为分析温度力对CRTSⅠ型双块式无砟轨道的影响,建立相关的有限元模型,考虑道床板混凝土弹塑性,建立道床板混凝土损伤塑性本构模型,以能量等效性假设定义出混凝土的损伤参数。
龙津桥名字源自“聚龙通津”,目的是“聚龙藏气”,让这座曾经是通往九龙寨城的重要码头,具有很强的人文色彩,反映那段从清未经民国到中华人民共和国的历史印记.本设计方案力
期刊
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生、测量监控等方面人手,介绍了S226海滨大桥
<正>The Eleventh National Foundry Congress, an event given every four years by Foundry Institution of Chinese Mechanical Engineering Society (FICMES), was held
期刊
<正>China will continue expanding its in the castings market all over the world.According to statistics,the global castings of
期刊