1) Grassland under protective plantation
防护林草地
2) meadow shelterbelt
草地防护林
3) pasture shelter belts
牧草防护林
1.
Continuous observations of air temperature,relative humidity,net radiation and wind speed were conducted with auto-micrometeorological observation system in pasture shelter belts of Populus bolleana Lauche growing in Maowusu Sandy Area,Inner Mongolia.
采用自动气象观测系统于2004年4—8月对内蒙古毛乌素沙地新疆杨牧草防护林内风速(V)、净辐射(Rn)、空气温度(Ta)及相对湿度(RH)等小气候要素进行多点连续观测和分析,以期为毛乌素沙地牧草防护林的构建提供一些理论依据。
4) grassland shelterbelt
草原防护林
1.
Tree species of grassland shelterbelt which are suitable to semiarid sandy area were selected.
主要对绿色草原牧场的草原防护林进行研究,选择栽植10个乡土树种和外引种,观测树种抗性、成活率、生长发育和保存情况,以及防护效果;对各树种适应性进行评价,选择适宜半干旱风沙地区的草原防护林树种;并通过对4种造林方法的比较研究和评价,选择出半干旱风沙地区草原防护林建设的科学营造技术。
6) sandy land shelterbelt
沙地防护林
1.
The authors applied drip irrigation in sandy land shelterbelt cultivation for the first time,and discussed the benefits of water saving,energy saving,labour saving and the investment benefits.
将滴灌应用于沙地防护林,并对其节水、节能、省工及投资效益做了初步探讨。
2.
The results of 4-year s trial showed that when drip irrigation was applied in the establishment of sandy land shelterbelt,the optimal design scheme were as follows:the diameter of drip tube 12 mm,drip flux 3.
经过4a的试验研究结果表明:滴灌技术应用于沙地防护林的营造,综合支出最低的设计方案是毛管直径12mm,滴头流量3 75L·h-1,滴头间距1 0m的设计方案;另外,滴灌条件下的造林成活率和林木生长量均高于常规灌溉,具有节水、节能、省工等效果。
补充资料：广东东莞林下附属草地放牧
广东东莞林下附属草地放牧
广东东莞林下附属草地放牧 苏大学摄
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条