1) Devolution mountain
退化山场
1.
Initial studies on biomass of devolution mountain of purple sandshale;
北方紫色砂页岩退化山场治理探讨
2.
Soil systems entropy of devolution mountains in Hebei province;
河北省退化山场土壤系统熵研究
3.
In this thesis, the gneiss devolution mountain in Tang county and purple sandshale , granite devolution mountain in ManCheng county were studied.
本文以河北省唐县片麻岩退化山场和满城县紫色砂页岩、石灰岩退化山场为研究对象,采用模型应用、实地采样、室内分析等方法对退化山场的未开发区(处理一)、开发四年(处理二)和开发七年(处理三)的区域进行养分积累动态、生物量和生物承载力现状的系统化研究,旨在探索出一条适合河北省退化山场开发、改良的有效途径,为山区的可持续发展提供科学依据。
2) degraded mountainous area
退化山地
1.
Storage and distribution of soil seed banks in degraded mountainous area of dry-hot valley in Nanjian, Southwest China.;
南涧干热退化山地不同恢复群落土壤种子库储量及其分布
2.
Vegetation restoration of degraded mountainous area of dry-hot river valley in Nanjian county and its benefits analysis;
云南南涧干热退化山地植被恢复重建及其效益初析
3.
Demonstration engineering of high-value economic forest tree cultivation at hot areas and ecological restoration of degraded mountainous areas is a key engineering project proposed by Yunnan Provincial Planning Commission to State Planning Commission.
“热区高价值经济林木培育与退化山地生态恢复治理示范工程”是 2 0 0 2年云南省计委向国家计委申报的重点工程项目之一。
4) depolarization field
退极化场
1.
The study of the depolarization field influence on ferroelectric films within the TIM model;
用横场伊辛模型研究退极化场对铁电薄膜的影响
2.
Basing on basic equations of dielectric material,we derive the expression of the depolarization field in ferroelectric multilayers.
从最基本的电介质方程出发,给出了铁电双层膜、铁电三明治结构、铁电超晶格中退极化场的表示形式,并详细研究了退极化效应对反铁电耦合的铁电双层膜的极化以及电滞回线的影响。
3.
Using mean field theory,the effects of depolarization field on the thermodynamic properties of ferroelectric superlattice is studied within the framework of the transverse Ising model.
应用平均场理论,在横场伊辛模型的框架内,研究了退极化场对铁电超晶格热力学性质的影响。
6) degraded grassland
退化草场
1.
Spatial structure of soil nutrients of degraded grassland in southeastern Keerqin sand land and its ecological explanations;
科尔沁沙地退化草场土壤养分的空间结构分析
2.
In this paper, by investigating soil, field vegetation, and surface wind erosion status, combining indoor analysis, the effect of vegetation recovery on sandy degraded grassland in Yanchi is studied.
本文通过野外植被、土壤和地表蚀积状况调查与室内分析测试相结合的方法,对盐池沙地退化草场植被恢复的效果进行了调查。
3.
The research on planting density of Caragana intermedia,which was established as the demonstration region of vegetation restoration and desertification control degraded grasslands on soil water,was observed in drought year of Yanchi county of Ningxia.
通过对宁夏盐池干旱退化草场植被恢复与风蚀沙化防治技术示范区内不同种植密度的柠条林土壤水分进行了定位观测 ,从土壤水分日变化、季节性变化、水分垂直分布等方面进行了分析。
补充资料：山场
1.山中林场或田地。 2.泛指山地。 3.宋代为实行茶叶专卖而由政府设置的榷茶场。场区茶民称园户，由政府派官吏管理。园户所产之茶除可折合充税外，其余皆须售于官府，不得私卖。
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