两种优良野生草坪植物生态生物学特性分析

通过 1 998～ 2 0 0 0年对野生宿根画眉草和鼠尾粟观察 ,对其形态特征和生物学特性进行了鉴定分析 ,从草坪和水土保持植物利用的角度对其进行建坪试验和水土保持试验 ,发现其具有优良坪用性状和水土保持效果。并对其特性作了综合性描述。     

甜荞品种温度生态特性的研究

甜菜品种对温度的反应特性研究结果表明：来自全国荞麦主栽区的12个品种可分成4种类型；（1）强敏感型；（2）敏感型；（3）弱敏感型；（4）迟钝型，对低温敏感性强的品种的生物学起点温度比敏感性弱的品种高。     

草坪在生态城市建设中的作用及其应用

论述了草坪在城市生态系统中的生态效应是目前我国在应用草坪提高城市生态质量方面存在的问题，通过对城市生态系统特殊性的分析，提出了草坪系统规划的目的和原则，力求把城市建设成为生态协调、可持续利用和良性循环的人居环境。     

沙漠绿洲农业区建立果粮间作模式体系探讨

生态环境脆弱是沙漠绿洲农业的重要限制因子，果粮间作体系是一个生态效益强而稳固、经济效益高而持续的立体农业模式。本文根据内蒙古西部沙漠绿洲的综合特点以及河套地区果粮间作实践经验，阐述了沙漠绿洲农业区建立果粮间作模式体系的重要意义，并指出建立实施该模式体系应该注意的几个关键问题。     

青海省家畜生态类群分析

利用家畜生态适应指数 ,对全省各县的家畜进行了家畜生态类群优势序列的排列。结果表明 ,青海省各县饲养的家畜种类可概分为 10大优势生态序列 ,基本上反映了该地区饲养家畜的特点。其方法适宜 ,结果可信。按不同生态适宜家畜序列进行专业化生产 ,会对畜牧生产具有促进作用     

Cost‐Effective Targeting Soil and Water Conservation: A Case Study of Changting County in Southeast China

Soil erosion is by far the greatest cause of land degradation and other environmental and socio‐economic problems in China. Although various conservation methods are widely utilized to reduce soil erosion and to sustain agricultural production, the cost‐effectiveness and selection of these methods are less known. Using our survey and ecological data, this study evaluated four soil and water conservation methods in Changting County, Southeast China. The results show that the disparity of conservation costs is much larger than that of ecological benefits. Planting fruit trees is a kind of conservation through primarily economic development. Closing hillsides for afforestation is most cost‐effective, followed by forest fertilizing, and planting trees and grass. Our findings suggest that comparatively lower cost conservation methods, for example closing hillsides for afforestation, should be considered in priority if initial ecological conditions can meet the requirements of the method. Copyright © 2015 John Wiley & Sons, Ltd.     

Land Cover Transition in Northern Tanzania

Land conversion in sub‐Saharan Africa has profound biophysical, ecological, political and social consequences for human well‐being and ecosystem services. Understanding the process of land cover changes and transitions is essential for good ecosystem management policy that would lead to improved agricultural production, human well‐being and ecosystems health. This study aimed to assess land cover transitions in a typical semi‐arid degraded agro‐ecosystems environment within the Pangani river basin in northern Tanzania. Three Landsat images spanning over 30 years were used to detect random and systematic patterns of land cover transition in a landscape dominated by crop and livestock farming. Results revealed that current land cover transition is driven by a systematic process of change dominated by the following: (i) transition from degraded land to sparse bushland (10·8%); (ii) conversion from sparse bushland to dense bushland in lowland areas (6·0%); (iii) conversion from bushland to forest (4·8%); and (iv) conversion from dense bushland to cropland in the highlands (4·5%). Agricultural lands under water harvesting technology adoption show a high degree of persistence (60–80%) between time slices. This suggests that there is a trend in land‐use change towards vegetation improvement in the catchment with a continuous increase in the adoption of water harvesting technologies for crop and livestock farming. This can be interpreted as a sign of agricultural intensification and vegetation regrowth in the catchment. Copyright © 2015 John Wiley & Sons, Ltd.     

盐生植物的生态环境意义研究

随着我国人口的不断增长、工业发展,污染问题愈来愈严重,可直接利用的土地资源相对有限,环境问题越来越引起重视.随着各类资源的勘探和开发,现有的可耕土地和可建土地均为极其宝贵且有限的资源.研究了盐生植物的生态环境意义,为生态环境的保护和改善提供了理论依据.     

京郊生态村可持续发展管理模式的探索 —以怀柔北宅村为例

以京郊生态村可持续发展管理模式研究为主体，对生态村建设的内涵及发展进行了回顾和分析。以怀柔区北宅村为具体实例，对北宅村实施生态村建设的措施以及为实现生态村建设的目标所进行的社会保障体系建设方面进行了研究和探讨。从而得出京郊生态村以集体经济为龙头，用科学的方法健全资产管理的法律监督机制，发挥组织体系的服务功能，加大农业教育投资，提高村民生活的整体水平，是实现可持续发展目标的途径之一。