Showing papers in "Acta Ecologica Sinica in 2003"

TL;DR: The MODIS-EVI has improved its linearity with vegetation, particularly in well-vegetated regions, and a BRDF compositing scheme is being tested to further improve the seasonal depiction of vegetation dynamics.

TL;DR: A new landscape metric index, namely, location weighted landscape contrast index (LCI) is proposed, under a framework of the Lorenz Theory, which can be used to evaluate the effect of landscape pattern upon ecological processes as related to distance, relative elevation, and slope degree.

TL;DR: WHEA, an innovative approach for regional development, can lead to significantly improvement in both the restoration of degraded ecosystems and regional sustainable development simultaneously in the semi arid Loess Plateau.

TL;DR: The impacts of N deposition on forest plants are reviewed to cause a morphological change of plants, especially on the shoot/root ratios, because N deposition tends to promote growth of aboveground plants and inhibit root growth.

TL;DR: In this paper, the treatment technologies of the coal mine water are determined by it' s characters and utilization after treatment, which can be divided into engineering treatment and biological treatment and can be used for water and soil conservation and desertification treatments.

TL;DR: In this paper, the authors examined the economic values and the soil conservation functions from ecosystems in Qinghai Tibet Plateau (QTP), including protection of soil fertility, reduction of soil disuse and decrease of soil deposit.

TL;DR: In this paper, the authors analyzed the relationship between soil desiccation and drying of the root zone soil layer, developed an approach to determine the limit of root zone drying, and considered that the main measure to control soil de-icing is to control the density and productivity of a vegetation community which is related to the theory of the land's carrying capacity of vegetation.

TL;DR: Forage ratio selection indices suggest that the giant panda prefers habitats characterized by a convex slope, south aspect, old conifer forests, shrub coverage of 0~24%, bamboo coverage above 50%, and shows no preference for other factors, such as slope angle, tree, canopy, or shrub height.

TL;DR: The carbon storage and its distribution pattern in these forest ecosystems were studied, and the potential, rate and allocation of carbon sequestrated by forest ecosystems based on this study were also discussed.

TL;DR: DGGE is a powerful tool for the analysis of microbial communities, but in order to reduce potential biases and limitations of DGGE and other techniques, it is suggested that researchers combine DGGE with other molecular and microbiological techniques to obtain a more detailed view of microbial community structure and function.

TL;DR: High sensitivity region is properly the region where eco-environment problems are very serious now, which shows that it is manipulability and reliability to use GIS-based assessment of eco- Environment sensitivity described in this paper.

TL;DR: The influence of rainfall and total active temperature on vegetation in China is analyzed from April to July through correlation analysis, and shows that NDVI lags behind rainfall with quite apparent differences in climatic regions where correlation coefficients are higher than 0.3.

TL;DR: Wang et al. as discussed by the authors presented the dynamic change of wetland spatial pattern in the last two decades in the Sanjiang Plain based on the trial of models of proximity index, distribution centroid, and extended dimension.

TL;DR: In this paper, the authors analyzed the relationship between soil desiccation and drying of the root zone soil layer, developed an approach to determ ine the lim it of root zone drying, and considered that the main measure to control soil deiccation is to control the density and productivity of a vegetation community which is related to the theory of the land's carrying capacity of vegetation.

TL;DR: Wang et al. as discussed by the authors summarized the technological systems of rainwater harvesting agriculture, which are consisted of engineering of rain water harvesting, water saving irrigation, and physiological and ecological techniques of limited irrigation.

TL;DR: A landscape eco network theory in detail was explored in detail to find a framework of eco road network construction and showed road network effect zones associated with nodes, corridors and nets are positively increasing with road network densities.

TL;DR: Zhang et al. as mentioned in this paper investigated the pattern of vegetation in Zhuweigou of Lishan Mountain Nature Reserve, in relation to the environmental factors, using TWINSPAN, DCA and DCCA.

TL;DR: The results of tissue analyses on the plants collected from this high manganese environment identified Phytolacca acinosa Roxb.

TL;DR: Based on the two cruises of ecosystem co-prehensive surveys carried out in the Bohai Sea (37°N～41°N, 117.5°E) in Se ptember 1998 and April 1999, the distribution of phytoplankton biomass, primary productivity and its relationship with environmental factors were studied.

TL;DR: It is found that the average contents of organic matter in the sewage sludges have being increased recently in China and long term effects of their land application are needed to be understood through long term experiments in China.

TL;DR: This study suggests that the land use has greatly changed since 1950s, especially after 1980 in Duolun County, and how these changes affected the quality of eco-environmental system in this area is suggested to be urgently needed.

TL;DR: In this paper, the authors examined soil water restoration at two sites where the land use was changed from alfalfa to annual crops for 3, and 12 years, respectively.

TL;DR: It was likely that hydrodynam ics such as water level fluctuation acted as a disturbing factor and maintained high phytoplankton diversity in the reservoir.

TL;DR: The regeneration and growth of Korean pine (Pinus koraiensis) and the influencing factors in broad-leaved Korean pine forests in Lesser Xing′an Mountains of Northeast China are studied to preserve an important gene pool for future generations.

TL;DR: Mechanisms of water content on soil respiration are that dissolved organic matter, aeration in soil and the energy allocation of microbe and plant are variant with soil moisture, which could facilitate research on the role of terrestrial ecosystem in carbon cycle and provide evidence on the riddle of missing carbon sink.