杨树人工林,Poplar plantation
1)Poplar plantation杨树人工林
1.Construction of site index tables of poplar plantations in southern areas;南方型杨树人工林立地指数表的编制
2.In situ study on soil nitrogen mineralization in successive rotation stands of poplar plantation in north Jiangsu province苏北杨树人工林连栽林地土壤氮素矿质化原位研究
3.Fine root production and turnover of poplar plantation in the Lhasa river valley,Tibet Autonomous Region拉萨河谷杨树人工林细根的生产力及其周转
英文短句/例句
1.Stem Sap Flow Dynamics and Transpiration of a Poplar Plantation;杨树人工林树干液流动态变化与林分蒸腾
2.A STUDY ON PRINCIPAL FELLING AGE OF POPLAR PLANTATION ON CHANGJIANG RIVER BEACH长江滩地杨树人工林主伐年龄的研究
3.Aboveground Biomass and Carbon Storage of Poplar Plantation;杨树人工林地上生物量和碳储量研究
parative Analysis of Microbial Floras of Poplar Plantations in Beijing北京杨树人工林微生物区系比较分析
5.Calculating Biomass and Carbon Storage of Poplar Plantation Based on Tree Structure基于树体结构推算杨树人工林生物量及碳储量
6.Studies on Soil Nitrogen Mineralization of Poplar Plantation in North Jiangsu Province;苏北杨树人工林林地土壤氮矿质化特性研究
7.The Regulation Mechanism on the Stem Diseases of Poplar Plantation in Northern China by the Stand and Site Management北方杨树人工林干部病害立地及林分调控机制
8.Research on Soil Respiration Dynamics and Poplar Fine Root for Four Hybrid Poplar (Populus×Euramericana cv.) Plantation Patterns in the Northern Areas of Jiangsu Province;苏北不同杨树人工林经营模式下土壤呼吸及杨树细根研究
9.Biomass and nutrient accumulation of poplar plantation on beach land in Yangtse River in Anhui province.安徽长江滩地杨树人工林生物量和养分积累
10.The final cutting age of different density poplar plantation in beach滩地不同密度杨树人工林主伐年龄的研究
11.Carbon Balance of a Poplar Plantation Ecosystem in Daxing, Beijing;北京大兴杨树人工林生态系统碳平衡的研究
12.Energy and Water Budget of a Poplar Plantation in Suburban Beijing;北京地区杨树人工林能量和水量平衡研究
13.A Study on Effects of Biological Mulching on Growth and Soil Properties of Poplar Plantation in Southern Upland Area;南方山地杨树人工林生物覆盖效应的研究
14.Biomass and Carbon Storage in Poplar Plantations in the North of JiangSu Province;苏北杨树人工林生物量与碳贮量的研究
15.Studies on Soil Rhizosphere Effect of Continuous Cropping Poplar Plantation;多代连作杨树人工林土壤根际效应的研究
16.Studies on the Growth and Yield Models of Poplar Plantations in Southern Area;南方型杨树人工林生长与收获模型的研究
17.A Study on the Interplanting Patterns and Effects of Agroforestry;杨树人工林复合经营模式及效益的研究
18.Effects of Fertilization on Growth and Wood Prperties of Poplar Plantations施肥对杨树人工林生长及木材性质的影响
相关短句/例句
plantation poplar人工林杨树
1.Fiber morphological features and variation ofplantation poplar;人工林杨树木材纤维形态特征及其变异的研究
3)poplar plantation人工林杨树
1.Physical and mechanical properties of 1-72 Poplar plantation wood had been comprehensively researched using non-destructive testing methods.为合理选择与利用无损检测方法,快速高效地评估我国大规模种植的人工林杨树木材性质,提供科学的依据和量化的指标及目标,对我国人工林的选育、栽培和高附加值利用具有重要的理论和现实意义。
4)artificial poplar plantation人工杨树林
1.This article focused on the study of changes in the structure and amount of bacterial population in reed beach , and anticipated to assess the effects ofartificial poplar plantation on soil bacterial population on a molecular level .本文重点探讨长江中游湖南省岳阳市君山区段芦苇滩地土壤中细菌种群结构和数量变化,以期从微观的角度来评价人工杨树林构建后对芦苇滩地土壤细菌种群的影响。
5)artificial poplar forest land人工杨树林地
6)plantation poplar of beaches滩地人工林杨树
延伸阅读
杨树速生丰产林平衡施肥技术1．施肥量。杨树施肥量的确定，除考虑杨树本身的需肥规律及造林地土壤养分条件外，还应综合考虑杨树品种、树龄、林分密度及地下水位等因素的影响。一般在我省杨树主产区，每亩可施尿素40公斤，过磷酸钙60公斤，氯化钾30公斤。此外，还必须根据土壤分析结果，加施必需的中、微量元素养分。2．施肥次数。杨树施肥以每年4-5月，7-8月两次施肥效果较好，每次分别施入全年施肥量一半的肥料。3．施肥方法。采用四点穴施的方法，根据杨树树龄的大小，在根系分布的范围内，于杨树周围均匀挖穴四个，将肥料平均施入后覆盖。施肥深度依据不同树龄以15-30厘米左右为宜。（来源：湖北林业第7期）
