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| 1 | The roles of a decision support system in applying forest ecosystem management in Northeast China显示文摘Forest ecosystems provide a variety of services and forest ecosystem management (FEM) is an effective approach to maximize the services. Because of the complexity of forest ecosystems, the applications of FEM can be facilitated with decision support systems (DSS) that recognize and incorporate ecological and socio-economic variables. With the rapid development of computation and information technologies, DSS have been advanced in many ways. Traditional forest management within a forestry unit in China is planned on a yearly basis. The planning itself remains primarily a verbal concept as there are no quantitative decision-support tools available to translate the concept into forest management actions. For the purposes of FEM at the management level, a forest management DFF, FORESTAR(R), has been developed under a framework of geographic information system (GIS) and forest models. The paper explained the intelligent modeling mechanisms and demonstrated how the applications of FEM can be strengthened with the applications of FORESTAR(R). | DAI Limin, ZHENG Bofu, Guofan Shao & ZHOU Li State Key Lab of Systems Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China Department of Forestry and Natural Resources, Purdue University, West Lafayette, IN 47907, USA Graduate University of Chinese Academy of Sciences, Beijing 100101, China | 2006 | Science China(Technological Sciences)2006，49，z1： | 9 |
| 2 | MATHEMATICAL MODEL OF OVERLAND FLOW AND MECHANISM OF SOIL CONSERVATION FOR FORESTED STEEP HILLSLOPE--(II)Mechanism of Soil Conservation Over Steep Hillslope显示文摘MATHEMATICALMODELOFOVERLANDFLOWANDMECHANISMOFSOILCONSERVATIONFORFORESTEDSTEEPHILLSLOPE--(II)MechanismofSoilConservationOverSt... | WU Changwen and WANG Lixian ( Science. Nanchang College of Water Resources and Hydro Power, 330029)( Dept of Soil and Water Conservation, Beijing Forestry University, 100083,PRC) | 1995 | International Journal of Sediment Research1995，10，2： | 4 |
| 3 | Comparison of water quality in two catchments with different forest types in the headwater region of the Hun River, Northeast China显示文摘In the headwater catchments of the Hun River,Northeast China, secondary forests(SF) have been replaced by plantations since the 1960 s. Concern has been growing over this loss and the decline in water quality caused by the plantations. To test the effects of plantations on water quality, we selected two separate catchments covered by SF and Pinus koraiensis plantations(KP) to monitor physical and chemical properties of various hydrological variables including throughfall, stemflow,through-litterfall and runoff(flowing out of outlets of the catchments). The physical properties of water declined after water flowed through the two catchments as compared with rainwater. The pH of runoff in both catchments also dramatically decreased. The concentrations of Cl^-, NO_3^- and NH_4^+ in the runoff from the two catchments were similar(concentrations of Cl-and NH_4^+ in both catchments were similar to those in rainwater). Total P concentration in runoff of the SF catchment was higher than that of the KP catchment(P concentrations in both catchments were also higher than in rainwater) because P concentrations in litter and soil of the SF catchment were higher than those in the KP catchment. In summary, the rainwater became acidic in both catchments, but the responses of most water quality variables were similar in the two catchments, suggesting that appropriate ratios of KP in SF are feasible for secondary forest recovery and for preserving water quality(KP did not cause a decline in quality) in the headstream regions in Northeast of China. | Jiao-jun Zhu Li-zhong Yu Tian-le Xu Xiaohua Wei Kai Yang | 2019 | Journal of Forestry Research2019，30，2： | 4 |
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