Correlation of eco-hydrographic benefit and height increment of Robinia pseudoacacia stand with climatic environmental factors in Yellow River Delta Wetland of China |
| |
| Authors: | Peng Gao Hui-ling Yang Guang-can Zhang Ze-fu Zhou |
| |
| Institution: | (1) Forestry College/the Key Laboratory of Ecological Environment, Shandong Agricultural University, Taian, 271018 Shandong, P. R. China;(2) Research Institute of Forestry, CAF, Beijing, 100091, P. R. China |
| |
| Abstract: | The relationship between eco-hydrographic benefit of forest vegetation and climatic environmental factors is one of the focuses
in the research on environmental protection and ecosystem countermeasures in Wetland. The runoff, sediment and soil moisture
rate dynamics in Robinia pseudoacacia plantation and its clearcut area were investigated in the natural runoff experiment plots in Yellow River Delta Wetland,
Shandong Province, China. The correlation of height increment of R. pseudoacacia with nine climate factors such as light, water, heat, etc. was analyzed by stepwise regression analysis. The results showed
that the amounts of runoff and sediment in clearcut area of R. pseudoacacia were 53.9%–150.8% and 172.8%–387.1% higher than that in Robinia pseudoacacia plantation, respectively. The runoff peak value in R. pseudoacacia stand was obviously lower than that in clerarcut area, meantime, the occurrence of runoff peak in R. pseudoacacia stand was 25 min later than in its clerarcut area. The soil moisture rates in R. pseudoacacia stand and its clearcut varied periodically with annual rainfall precipitation in both dry season and humid season. The annual
mean soil moisture rate in R. pseudoacacia stand was 23.3%–25.6% higher than that in its clearcut area. Meanwhile, a regression model reflecting the correlation between
the height increment of R. pseudoacacia and climatic factors was developed by stepwise regression procedure method. It showed that the light was the most important
factor for the height increment of R. pseudoacacia, followed by water and heat factors.
Foundation project: Subsidized by the National “11th Five Year” Plan of Science and technology (2006BAD26B06, 2006BAD03A1205)
and Ecological Restore Project of Water Resources Ministry of China (2006-2008). |
| |
| Keywords: | Yellow River Delta wetland Robinia pseudoacacia stand Eco-hydrographic benefit height increment climatic factors |
| 本文献已被 SpringerLink 等数据库收录！ |
|
