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Global carbon cycles are impacted by human activity primarily via fossil fuel combustion and forest carbon budget alterations. In this study, the temporal dynamics and spatial distribution of forest biomass carbon (FBC) stock and density in China were analyzed to assess the large-scale effects of humans on FBC. The results indicated that from 1977 to 2013, the FBC stock increased by 62.9%, from...

The relationship between forests and streamflows has long been an important research interest in China. The purpose of this paper is to summarize progress and lessons learned from the forest-streamflow studies over the past four decades in China. To better measure the research gaps between China and other parts of the world, a brief global review on the findings from paired watershed studies ov...

We present a new proof of a result of Lovász on the maximum number of edges in a k-forest. We also apply a construction used in our proof to generalize the notions of a k-hypertree and k-forest to a class which extends some properties of trees, to which both specialize when k=2.

|Ultra-wide bandwidth (UWB) signal propagation experiment is performed in a rural terrain to characterize the outdoor UWB signal propagation channel. The bandwidth of the signal used in this experiment is in excess of one GHz. The test apparatus and measurement technique are described. From the measured pulse response the mean delay, delay spread, propagation loss and forestation loss are deter...

Land-cover changes can affect the climate by altering water and energy balance of land surface. Numerous modelling studies have indicated that alterations at surface result in considerable precipitation. Yet land-cover-induced precipitation remain largely unconstrained observations. Here we use an observation-based continental-scale statistical model to show forestation rain-fed agricultural Eu...

BACKGROUND Hemorrhagic fever with renal syndrome (HFRS) is endemic in Liaoning Province, China, and this province was the most serious area affected by HFRS during 2004 to 2005. In this study, we conducted a spatial analysis of HFRS cases with the objective to determine the distribution of HFRS cases and to identify key areas for future public health planning and resource allocation in Liaoning...