forest land的例句大全

The time lag of impact for woodland, unwoodland and natural grassland is 5 years, shrub 3 years. Of sparse forest land, improved grassland, artificial grassland lagging effect for 1 year.

对有林地、未成林造林地和天然草地的影响效应滞后5年；对灌木林地的影响效应滞后3年；对疏木林地、改良草地、人工草地的影响效应滞后1年。

Forest Land Ownership and Sustainable Management of Community Forest Resources

林地权属与社区森林资源的持续管理

At same slope degree and length, the soil erosion rate was decreased with the order of young chestnut garden> bamboo field> sparse masson pine forest land> tea garden.

相同坡度和坡长条件下，幼龄板栗园的土壤侵蚀速率>雷竹园>稀疏马尾松林地>茶园。

Guided by the theory of sustainable development, this paper advances an approach toward sustainable use of forest resources on a state forest farm. Discussion on Developing Intensively-managed Eucalypt Plantations on Leasehold Forestry Land by Guangxi State Forest Farms

本文根据线性规划方法和原理，建立了用于国营林场用材林经营的森林资源可持续利用规划辅助决策模型。广西国营林场租赁林业用地发展速丰桉浅议

Spatio-temporal Change of Land Use and Converting Slope Farmland into Forest and Grassland in Yanan Ecological Construction Demonstration Area

延安示范区土地利用与退耕还林的时空变化研究

The increase of CO2 content caused by the usage of fossil fuel and forest destruction has lead to global climatic change. The relationship between land vegetation, especially forest growth and carbon circle is the main content for the study on land biosphere and global variation.

由于燃烧化石燃料和砍伐森林引起CO2浓度升高并随之带来全球气候变化，陆地植被生态系统，尤其是森林的生长与碳循环之间的关系成为陆地生物圈与全球变化研究中的主要内容。

Crop production of this sort could help preserve biodiversity, since you would not need more land or forest destruction for agriculture, would use less water, and avoid using up primary land.

这种农作物生产方式可能有助于保存生物多样性，因为不需要更多的土地或毁掉更多的森林用于农业，用水也较少，而且能避免用尽主要的土地。

abstract victoria is one of the important forestry regions in australia. the total area of victoria state is over 20 million hm2, in which public land is 9.1 million hm2. the forest cover rate is as high as 80%.

维多利亚州是澳大利亚重要的林业省份之一，在其2000多万hm2白土地上，公有土地为910万hm2，森林覆盖率高达80%。

Seasonal forests ( unlike tropical rain-forest) the largest land habitats.

季节森林，比如我们熟悉的热带雨林，是陆地上生物最大的栖息地。

On the basis of investigation and study of mountain economic forest, systematic research has been done on technology of land preparation, form of equipment, density of forestation, site condition, planting technology, aftercare and protection.

在对山地经济林调查研究的基础上，对其整地技术、配置形式、造林密度、立地条件、栽植技术、抚育保护等进行了系统的研究。

Among SIDS with limited forest cover, trees outside forests ( such as on agricultural land) often play a very important role in local livelihoods.

在森林覆盖十分有限的小岛屿发展中国家，森林之外的树木（如农地上的树木）往往在当地人的生计中发挥十分重要的作用。

Firstly, we derive the image of land use from the two ETM+ image based on decision tree classification, and the land-use types are artificial land-use, farmland, forest, grassland and water.

首先基于这两期遥感影像采用决策树分类方法得到1996年和2004年的土地利用图，土地利用类型包括人工用地、耕地、林地、草地和水体。

Effects of Different Time Gradient of Cropping Land Conversion to Forest on Soil Physical Properties in DaTong County of QingHai

青海大通不同退耕还林时间梯度对土壤物理性状的影响

The communities structure and seasonal change in diversity of soil arthropod communities in secondary forest, dry-rice land and fired remains after simulative process of slash-and-burn in Xishuangbanna were studied.

通过模拟刀耕火种过程，对刀耕火种前后的次生林、旱稻地（第2年）和火烧迹地（火烧后直接撂荒地第2年）土壤节肢动物群落结构特征及季节变化进行了调查研究。

The flat land and sparse population and relative lean soil cause forest management to depend on mechanization and intensive cultivation and old-aged harvest system.

土地平整、口稀少、壤肥力较低，是该林业公司机械化作业、约化经营、伐年龄较大的缘由。

Registration and Issuing of New Forest Tenure Certificates in Guangdong Province Probe into Register and Certificating Main Bodies Confirmation in Country Collective Land Proprietorship

广东省全面开展登记换发新林权证工作的探讨农村集体土地所有权登记发证主体确定问题研究

The 147.92 × 10~ 4t grain production will decrease in the corrasive region because of the conversion from sloping farming land to forest or grassland.

生态退耕将直接减少粮食147.92×104t，由此退耕还林还草可能会带来粮食产量的暂时下降。

The forest is one of the largest land resources, can provide the timber and forest products, the soil conservation, windbreak and sand, regulating climate, wildlife habitat and ecological functions.

森林是最大的陆地资源之一，除了可以提供木材和林副产品外，还具有水土保涵、防风固沙、调节气候、为野生动物提供栖息地等生态功能。

By contrast, changes in the coniferous forest lesser extent, slightly larger changes in the land.

比较而言，针叶林变化幅度较小，耕地变化稍大。

Furthermore, the spruce forest in sandy land was obviously different with typical dark coniferous forest.

有60.8%的科、22.3%的属、7.2%的种与长白山的典型暗针叶林相同，因此沙地云杉林仍然属于暗针叶林范畴。