2) A thin and lean land
薄瘠之地
3) barren mountain area
瘠薄山地
1.
In order to solve the problems of drought and animal damages and so on with direct seeding in spring in Shandong barren mountain area,taking four species tree seeds as the test material,a new film mulching(film mulching 2) was studied.
为了较好地解决山东省瘠薄山地春季直播造林中干旱和动物危害等问题,提高出苗率和保存率,以刺槐、紫穗槐、国槐和皂荚4种林木种子为试验材料,提出了一种新的覆膜方式(覆膜2),并通过与常规覆膜(覆膜1)和露地(对照)造林的对比分析得出:1)覆膜1提高了土壤日平均温度,有效地增加了土壤各层温度,为种子的萌发提供了适宜的温度,覆膜2表层温度低于土壤表层温度,适于晚春播种;2)覆膜2能有效利用有限降水,保水蓄水能力高于覆膜1,较好地解决了瘠薄山地造林的干旱问题;3)4种林木种子出苗率和苗高覆膜处理均显著性高于对照,覆膜1对小粒种子较好,覆膜2对大粒种子效果最好;4)对于瘠薄山地的直播造林,应多选取一些大粒种子,对于小粒种子,应加大单穴的播种粒数。
4) infertile hills
贫瘠丘陵地
1.
The growth of 5 eucalypt species and 3 acacia species planted in the heavily eroded and infertile hills have been measured for 7 years.
尾叶桉、细叶桉、赤桉、粗皮桉、巨桉（简称桉树类，下同）和马占相思、粗果相思及薄果相思（简称相思类，下同）等８个树种，在水土严重流失的贫瘠丘陵地经７年的生长试验，结果表明：除巨桉和细叶桉在该立地生长较缓慢外，其余６个树种生长快，产量较高。
5) hilly downland
丘陵岗地
1.
Indigenous tree species,economic forest species and landscape plants should be taken into consideration when selecting species for vegetation restoration in hilly downland of Yangzhou.
扬州市丘陵岗地植被恢复选择树种时必须考虑乡土树种、经济林树种和园林景观植物,提出了意杨(pop-ulus Canadensis)等9个备选树种为扬州市丘陵岗地森林植被恢复的主要树种。
6) hillock area
丘岗地区
1.
Selection and allocation of associated tree species for Loblolly pine plantation in hillock areas of Southern Anhui Province;
皖南丘岗地区火炬松人工林伴生树种的选择与配置
补充资料：薄瘠
1.瘠薄。土地贫瘠，不肥沃。
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