grassland相关论文
Effects of vegetation near-soil-surface factors on runoff and sediment reduction in typical grasslan
Vegetation near-soil-surface factors can protect topsoil from erosion, however, their contributions to the reduction of ......
草原积雪信息的获取对于确定草原雪灾的影响范围与灾情等级等具有重要意义。基于光学遥感与微波遥感应用于草原积雪监测的各自优缺......
Water footprint in a region is defined as the volume of water needed for the production of goods and services consumed b......
翻译:小虎How Big Is the Amazon River?The River Amazon is the second longest river in the world, and the largest in terms ......
By the side of the Changqu River in Changtai Town,Baiyu County of Ganzi Prefecture,Sichuan,stands a temple of the Nyingm......
Land cover change and eco-environmental quality response of different geomorphic units on the Chines
Land cover in the Chinese Loess Plateau has undergone dramatic changes since the late 1980s. Revealing the trend in land......
目的利用地理信息技术定量分析青海省喜马拉雅旱獭栖息地与植被覆盖度、草地类型、植被类型等植被要素的关系。方法利用ArcGIS软件......
通过草原有偿承包,极大地调动了牧民投资建设草原的积极性,有效地缓解了草畜矛盾,天然草原承包到户实行有偿使用,是牧区畜牧业实现......
Effects of land-use changes on organic carbon in bulk soil and associated physical fractions in Chin
The Horqin Sandy Grassland is one of the most seriously desertified areas in China’s agro-pastoral ecotone due to its f......
(1)森林 (2)原形lie,躺 (3)原形destroy,毁坏 (4)坚决地 (5)粗心地,反义词为我们六年级学过的carefully。同学们,你们认为它是一个动词还是副词呢? (6)皮,皮肤 ......
阜阳市局 £4a 局长——_MINtkMMtgj’#lnH$B——q.M——D收束志不他只邀狲位J则【科校为先导推动地租工作.B为广为戳民U用凶盼引眯B.......
周末,Lily到supermarket购物,买回两样东西。是什么呢?你来猜一猜吧! 1 I have hands but no feet. I have a face but no ey......
叮铃铃——上课啦!老师拿着教学道具走进了教室。 老师拿的是什么呢?答案就在谜语中。 1 I’m not a watermelon, Not an......
By using digital satellite remote sensing data acquired in 1987―1989 and 1999―2000 and GIS combined with the natural a......
随着时代的进步、科技的发展以及新课标的推广,许多初中英语教师认识到了授课方式的不足。英语教学不能总是教师规规矩矩地讲、学生......
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生......
With grassland as the object of study,we briefly described the significance,main functions,characteristics and the imple......
纹理是使图像具有视觉真实感的重要因素,红外纹理生成是场景红外成像仿真的重要组成部分,也是真实感场景仿真的迫切需求。以在图像......
近年来,随着内蒙古希拉穆仁草原旅游区旅游设施的不断建设和旅游活动的增加,其草原环境岛屿化现象严重。为保护草原景观和当地生态......
Planting position and shade enhance native seedling performance in forest restoration for an endange
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
Changes in soil carbon stocks and related soil properties along a 50-year grassland-to-cropland conv
本文通过对荣华二采区10...
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
Identification of Concealed Faults in a Grassland Area in Inner Mongolia, China, Using the Temperatu
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
Distribution of soil organic carbon under different vegetation zones in the Ili River Valley, Xinjia
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
遥感及其技术应用和卫星技术的发展为资源环境调查提供了丰富的信息,在经济活动中发挥着巨大作用。本文根据美国陆地资源卫星TM影像......
新疆天山草地分布有蝗区170个,面积28.15×10^4ha。温性荒漠草地蝗区105个,占新疆天山蝗区总数的61.76%,面积达18.78×10^4ha,占天山蝗区总......
利用玛曲沙质次生裸地植物群落丰富度、多样性、均匀度及生产力的抽样调查资料,分析了不同放牧方式下植物群落生物多样性的变化情况......
本文旨在用17年的观测数据检验三个有关草地系统演替的假设:(1)物种多样性在演替早期不断增加;(2)伴随着演替的推进,样方植物群落间的相似......
Changes in soil carbon stocks and related soil properties along a 50-year grassland-to-cropland conv
Land use change significantly influences soil properties.There is little information available on the long-term effects ......
人类活动导致的大气氮沉降也许已经改变了凋落物分解速率和物种组成,从而影响生态系统氮循环和碳储量.本文在呼伦贝尔草甸草原,采......
土壤碳通量是陆地生态系统中碳循环的重要组成部分.为了揭示放牧对荒漠草原土壤呼吸速率的影响,我们采取完全随机区组设计比较研究......
Improvement, Comparison, and Application of Field Measurement Methods for Grassland Vegetation Fract
As one of the important vegetation parameters, vegetation fractional coverage (VFC) is more difficult to measure accurat......
草地是我国面积最大的陆地生态系统,在保障国家生态安全、食物安全和弘扬中华草原文明中具有突出的战略地位.本文分析了我国草地资......
Variations in microbial biomass C (MB-C),N (MB-N) and P (MB-P) along a gradient of different dominant vegeta- tion cover......
Using the Normalized Difference Vegetation Index (NDVI) as an indicator of vegetation growth,we explored the characteris......
The modeling ability of a stand-alone version of the Simple Biosphere Model 2 (SiB2) was tested mainly through diagnosin......
Based on the physico-biophysical considerations, mathematical analysis and some approximate formulations generally adopt......
草地是重要的生态系统类型,也是对气候变化最敏感的生态系统类型之一,气候变化深刻地影响草地生态系统。由于在群落中的高优势度,......
采用样方法对松嫩平原西部盐碱化草地开展植被群落调查,以期探明盐碱化草地不同群落的生物多样性特征和生产力水平。结果表明:羊草......
以祁连山西水林区草地为研究对象,利用土壤水势测定仪对其不同土层土壤水势进行了野外定位监测,并统计分析了草地在4—10月份土壤......
为了解云南省草原基层站所建设现状,采用参与式调查方法与实地调研方式,对云南省10个地州,75个县市的草原基层站所的建设情况进行......
根据国家石漠化综合治理草地畜牧业工程的需要,应用营养学、饲料学等学科理论,本文对贵州喀斯特石漠化地区白酒糟资源的利用价值进......
我国现行《草原法》对草原的定义为"本法所称草原,是指天然草原和人工草地"。梳理了植物学阶段、生态学阶段、生态系统阶段、人类......
草地覆盖了大于40%的陆地面积,其生态退化问题受到了极大的关注。近年来在各个地区采取了一系列草地恢复措施,但是具体的恢复效果......
通过非分散红外线吸收法测定呼伦贝尔地区具有代表性的16个草原表层土壤(0 ~20 cm)中总有机碳、溶解性有机碳,使用重铬酸钾容量法测定......
根据植物光合作用机理和太阳辐射在植冠层中的传输方程,推导光合作用产物与叶面积指数关系的解析式和叶面积指数与植被指数关系的......
以不同生长年限的紫花苜蓿(Medicagosativa L.)人工草地为研究对象,于2008年分别测定了生长1~5年的紫花苜蓿人工草地土壤的微生物生......
通过测定不同规模联户管理下草场的可食草盖度、牧草高度、草场鼠洞数量、毒杂草比例及地上生物量等衡量草场质量的指标,统计分析......
土柱系统在土壤学、土壤水文学、农学、农业经济学、环境和生态保护等领域应用广泛。将土柱系统分为渗漏取样系统、原状土柱系统、......