大山人民心向党

我们大山村地处高山。过去,300多户山民长年辛勤劳动在200多亩山田上,改变不了人穷、山荒、村破的境况。党的十一届三中全会以后,改革开放的春风吹进了大山,家庭联产承包制使山民有了生产经营自主权。

Nesting records of 20 bird species in Lhasa region,Tibet

This paper provides the information on nesting biology of 20 bird species in alpine shrub (4000-4700 m a.s.l.) or alpine meadow-wasteland habitats (4300-4700 m a.s.l.) in Lhasa region,Tibet.Of these species,three are endemic to the Tibetan plateau and 17 widespread in altitudes.The data on these taxa are all new to the high-altitude environments,especially the upper limit of their breeding distribution.A few species are firstly reported with respect to nesting information in the world.The study will contribute our knowledge for natural history of birds occurring in the harsh,extreme habitats.

Problems in Use of Inefficient and Idle Forestland——A Case of Lutian Town

In order to improve fragile eco-environment and develop economy in mountainous regions, problems during use of barren mountains and forestlands were explored with Lutian Town as an example through a survey of 97 farm households in the research. The results showed that barren lands in Lutian Town were exten- sive and the barren rate was as high as 48.6%. It is notable that the rate is in- creasing as farmer ages and education declines. It is proposed that forestry cooper- atives should be established and land management laws and rules can be formulated to promote mountainous area economy and forestland use.

Study on the Edge Effect of Orthopteran Community in Ningxia Helan Mountain

[Objective] The study aimed to discuss the influences of edge effect on orthopteran community in east slope of Helan Mountain.[Method] Samples are collected by using sample zone method.The different species of orthopterans in different habitats are recorded.[Result] The percentage of Oedipodidae,Catantopidae and Pamphgidae in total are 42.65%,29.15% and 12.76% respectively.From scattered grassland interior to edge and then to desert grassland,abundance increase in turn,but diversity in the edge is the highe...

Vertical patterns in plant diversity and their relations with environmental factors on the southern slope of the Tianshan Mountains(middle section)in Xinjiang(China)

The investigation of distribution patterns of species diversity is significant for successful biodiversity conservation. The spatial patterns of vegetation and different life-forms species diversity along an elevation gradient in the middle section of the southern slope of the Tianshan Mountains in Xinjiang, China were explored, using the detrended canonical correspondence analysis （DCCA） and the generalized additive model （GAM） methods based on a field survey of 53 sampling plots. In this work 158 species of seed plants were recorded, including 141 herbaceous, 14 shrub, and 2 tree species, in which the woody plants are very limited. 53 sampling plots were classified into 9 major plant communities. The results indicate that the herb communities were the most sensitive to changes in elevation gradient. The diversity indices of the community as a whole presented bimodal patterns. The peak values for the species diversities were found in the transition region between mountain steppe desert and mountain desert steppe （2,200-2,300m）, and in the alpine grassland region （2,900-3,100m）, while maximum species diversities were in the areas of intermediate environmental gradient. The main environmental factors on the distribution patterns in plant diversity were the elevation, soft water, total nitroeen, available nitrogen, organic matter, and total salt. The response tendency of the four diversity indices for the whole community to the soil environment was the same as that of the herb layers.

PIONEER PLANTS FOR ECOSYSTEM RECOVERY IN DRAINAGE BASIN OF ERLONGSHAN RESERVOIR IN HEILONGJIANG PROVINCE, CHINA

This article reveals the ecological features and the theories and methods of introducing pioneer plants in the process of eco-restoring in different degenerative ecosystems in the drainage basin of Erlongshan Reservoir in Heilongjiang Province by systemically studying the deteriorative ecosystems and using recovery theory. The study shows that with the rise in degenerative degrees of the ecosystems, bio-species and bio-diversity sharply decrease in the study area and microclimate becomes warmer and drier in natural ecosystem. Therefore, we must attach importance to the construction of plants and biodiversity. In the study, different pioneer plants are selected for different degenerative ecosystems to restore and maintain the service functions of the ecosystems.

Interpretation of absurdity by intertextuality： Comments on Donald Barthelme＇s The glass mountain

The paper focuses on the analysis of the intertexts to show the reality hidden inside Barthelme＇s The glass mountain. Barthelme is a representative of postmodernism. He employs typical writing skills, such as collage, fragments and discontinuous narratives, in The glass mountain to illustrate absurdity in the text. As a centerpiece of postmodernism, this fiction can be correctly interpreted by the way of intertextuality, which is a key to reveal the text＇s absurdity. Through such comparison, readers can understand that the purpose of absurd writing is to demonstrate reality in the modern world.

Evaluating the Spatial Uncertainty of Future Land Abandonment in a Mountain Valley(Vicdessos, Pyrenees-France): Insights from Model Parameterization and Experiments

European mountains are particularly sensitive to climatic disruptions and land use changes.The latter leads to high rates of natural reforestation over the last 50 years. Faced with the challenge of predicting possible impacts on ecosystem services,LUCC models offer new opportunities for land managers to adapt or mitigate their strategies.Assessing the spatial uncertainty of future LUCC is crucial for the definition of sustainable land use strategies. However, the sources of uncertainty may differ, including the input parameters, the model itself, and the wide range of possible futures. The aim of this paper is to propose a method to assess the probability of occurrence of future LUCC that combines the inherent uncertainty of model parameterization and the ensemble uncertainty of the future based scenarios. For this purpose, we used the Land Change Modeler tool to simulate future LUCC on a study site located in the Pyrenees Mountains(France) and two scenarios illustrating two land use strategies. The model was parameterized with the same driving factors used for its calibration. The definition of ‘static vs. dynamic' and ‘quantitative vs.qualitative(discretized)' driving factors, and their combination resulted in four parameterizations. The combination of model outcomes produced maps of the spatial uncertainty of future LUCC. This work involves adapting the definition of spatial uncertainty in the literature to future-based LUCC studies. It goes beyond the uncertainty of simulation models by integrating the uncertainty of the future to provide maps to help decision makers and land managers.

大山(散文诗)

家乡的大山,不美,却难以割舍对于她的依恋,不论在什么地方。岁月给了她太多的峥嵘。我爱她,我把那种缠绵的情愫织成朦胧的梦境。家乡的大山,很穷,却有一种天成的诱人魅力,不论是什么时候。岁月给了她太多的坎坷。我爱她,我把那种眷念的情怀寄于高天上的流云。大山荒,没有青青树,但她那赤裸的身子却很硬;大山贫,没有宝藏,但却有一股直冲云霄的正气。她的卑微,曾经使男人们直不直腰,喘不过气。

重塑大别春色——新县小流域综合治理硕果累累

新县县委县政府为改变新县"山荒水恶民穷"的面貌,经过深入调查后认识到:新县的出路在山,希望在山,因而制定了整治荒山的长远规划。从1984年开始,全县有计划有步骤地实施"万、千、百、十工程"。