| 乌鲁木齐南山中山带土壤水分变化及其与牧草生物量的关系 |
| |
| 引用本文： | 贾健,沙拉木.乌鲁木齐南山中山带土壤水分变化及其与牧草生物量的关系[J].现代农业科技,2011(21):281-283. |
| |
| 作者姓名： | 贾健 沙拉木 |
| |
| 作者单位： | 新疆维吾尔自治区乌鲁木齐市气象局,新疆乌鲁木齐,830002 |
| |
| 摘 要： | 分析了乌鲁木齐南山中山带地区天然草地土壤水分变化及土壤水分与牧草生物量关系。结果表明:乌鲁木齐南山中山带地区年内土壤水分的变化可分为春季增熵期、春末夏初缓慢失熵期、夏初墒情恢复期、夏季快速失墒期、秋季墒情稳定期5个时段;不同年份土壤水分的垂直变化随深度基本呈递减趋势;牧草生长季(5—9月)各月末的生物量不仅由当月平均土壤含水率决定,其与当月以前月份的土壤含水率、平均气温、光照、土壤肥力等因子均有关。
|
| 关 键 词： | 土壤水分 天然牧草 生物量 新疆乌鲁木齐 南山中山带 |
Soil Moisture Dynamic and Its Impacts on Forage Biomass in Middle Belt of South Mountain in Urumqi |
| |
| Authors: | JIA Jian SHA La-mu |
| |
| Institution: | JIA Jian SHA La-mu(Urumqi Meteorological Bureau in Xinjiang Uygur Autonomous Region,Urumqi Xinjiang 830002) |
| |
| Abstract: | The changes of soil moisture on natural grassland and the relations between forage bio-mass and the soil moisture in middle belt of south mountain in Urumqi were analyzed.Results indicated that changes of the soil moisture in the area could be divided into five periods,such as the increased period in spring,the slowness lose period in late spring and early summer,convalescent period in eraly summer,quickly lose period in summer,stable period in autumn;The vertical variation of soil moisture in different yea... |
| |
| Keywords: | soil moisture natural meadow biomass Urumqi Xinjiang middle belt of south mountain |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
