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Difference in Canopy and Air Temperature as an Indicator of Grassland Water Stress
water stress indicator air temperature canopy temperature soil moisture grassland vapour pressure deficit actual evapotranspiration
2015/1/28
In 2003–2005 in conditions of the moderately warm region of the Třeboň Basin (Czech Republic) the difference between canopy temperature (Tc) and air temperature at 2 m (Ta) was tested as an indic...
黄土区农草混合利用坡面土壤水分空间变异性(Spatial Variability of Soil Water Content on a Cropland-grassland Mixed Slope Land in the Loess Plateau, China)
土壤水分 农草混合结构 空间变异性
2010/12/29
通过对黄土区农草混合利用坡面的土壤水分分析,研究土地利用结构对土壤水分空间变异特性的影响。结果表明,研究区坡面土壤水分呈中等变异,且农草混合利用结构明显增加了土壤水分的空间变异强度,坡面土壤水分具有明显空间结构性。干湿条件下坡面0~60cm土层平均含水率的半方差最优理论模型分别为高斯模型和球状模型,且干旱条件较湿润条件下保持较高的基台值和变程,而块金值/基台值相对较低。Kriging插值结果显示...
原地放垡振动间隔松土对羊草草地质量的影响(Effect of Situ-vibration Spacing Scarifying Technique to Leymus chinensis Grassland)
原地振动间隔松土 羊草草地 植被特性
2010/12/28
以河北坝上地区羊草草地为研究对象,采用野外取样与实验室分析相结合的方法研究了原地放垡振动间隔松土对羊草草地的影响。结果表明,羊草草地经过原地放垡振动间隔松土处理后,土壤容积密度降低、毛管持水力升高和土壤含水率增加,同时土壤养分也呈现不同程度的优化;植物高度、盖度、密度和地上、地下生产力提高,优良牧草所占的比例有所增加,草地群落的植物多样性得到提高;在草地处理3年内平均每公顷每年增加收入155元。
Grassland monitoring of meadows in the region around Banská Bystrica
grassland monitoring flora Kremnické vrchy Mountains Starohorské vrchy Mountains vegetation
2014/3/10
Meadow grassland communities were monitored in situ in the region around the town of Bansk᠂ystrica (Central Slovakia) over the 2008 growing season. The botanical compositions were determined at ...