A5000167107- Aquatic Ecosystems and Phytoplankton Dynamics
- Hydrology and Watershed Management Studies
- Water Quality and Pollution Assessment
- Ecology and Vegetation Dynamics Studies
- Plant and animal studies
- Coastal wetland ecosystem dynamics
- Flood Risk Assessment and Management
- Environmental Science and Water Management
- Avian ecology and behavior
- Dam Engineering and Safety
- Plant Parasitism and Resistance
- Algal biology and biofuel production
- Food Industry and Aquatic Biology
- Tree-ring climate responses
- Groundwater and Isotope Geochemistry
- Marine Biology and Ecology Research
- Evolutionary Algorithms and Applications
- Hydraulic flow and structures
- Coastal and Marine Dynamics
- Geology and Paleoclimatology Research
- Hydrology and Drought Analysis
- Marine and coastal ecosystems
- Isotope Analysis in Ecology
- Fire effects on ecosystems
- Plant Water Relations and Carbon Dynamics
Inner Mongolia Agricultural University
2023-2024
Fort Collins Science Center
2011-2019
Rocky Mountain Research Station
2019
United States Geological Survey
2011-2018
Florida International University
2000-2002
Abstract Traditional approaches to the study of food webs emphasize transfer local primary productivity in form living plant organic matter across trophic levels. However, dead matter, or detritus, a common feature most ecosystems plays frequently overlooked role as dynamic heterogeneous resource and habitat for many species. We develop an integrative framework understanding impact detritus that emphasizes ontogeny heterogeneity various ways explicit inclusion detrital dynamics alters...
This study aimed at characterizing the spatiotemporal variability in water quality Hulun Lake. In an attempt to assess status of lake, data acquired from 13 monitoring points Lake 2012 2020 was applied improved composite identification index (WQI). The ordinary least squares (OLS) model used identify areas lake vulnerable pollution. results showed increase WQI value and deteriorated during 2012–2016. began improve gradually 2017. main variable affecting transitioned chemical oxygen demand...
We evaluated risk of extinction for a red-cockaded woodpecker (Picoides borealis) population in the Piedmont National Wildlife Refuge and Hitchiti Experimental Forest (PNWR-HEF), Georgia. Using data from this 1983-88, we calculated demographic parameters using 2 ways correcting newly banded unbanded birds. These parameter sets should encompass possible range true survival rates. program RAMAS/stage, implemented stochastic age-structured Leslie matrix model with habitat saturation used it to...
Abstract Given the unique biogeochemical, physical, and hydrologic services provided by floodplain wetlands, proper management of river systems should include an understanding how modifications influence wetland ecosystems. The construction levees can reduce river–floodplain connectivity, yet it is unclear affect wetlands within floodplains, let alone cumulative impacts entire watershed. This paper explores spatial relationships between levee in Wabash Basin, United States. We used a...
为探明草型湖泊乌梁素海水体营养状态及演变趋势,明确水体富营养化的关键影响因子,本文采用2006-2017年每年7月份湖泊水质监测数据,利用综合营养指数法评价了湖泊不同区域监测点的水体营养状态,模拟分析了湖泊水体营养状态的演变过程及趋势特征,定性分析了湖泊富营养的关键影响因子.研究结果表明:乌梁素海湖区北部、西部和南部监测点处于轻度富营养状态的极限概率分别为0.588、0.633和0.329,而湖泊的中部和东部监测点处于中营养状态的极限概率分别为0.810和0.536,说明乌梁素海湖区北部、西部和南部区域夏季水体营养状态将呈现向轻度富营养化演变的趋势,而湖区中部和东部区域则呈现向中营养化演变的趋势.水环境因子中水体理化指标对湖泊富营养化起决定性作用,且盐度指标响应概率高达55%,是水体理化指标中第1位影响因子,同时pH值与水深指标也是影响乌梁素海水体富营养化程度的重要因子.;In order to ascertain the eutrophication status, evolution trend, and its main impact factors in Lake...
1 A quantile regression model for counts of breeding Cape Sable seaside sparrows Ammodramus maritimus mirabilis (L.) as a function water depth and previous year abundance was developed based on extensive surveys, 1992–2005, in the Florida Everglades. The count extends linear methods to discrete response variables, providing flexible alternative parametric distributional models, e.g. Poisson, negative binomial their zero-inflated counterparts. 2 Estimates from our multiplicative demonstrated...
为探明寒旱区浅水型湖泊乌梁素海水环境因子对水体营养状态的影响程度，以2013—2018年1月和7月湖泊水环境监测数据为基础，对具有典型代表性监测点的水体营养状态与水环境因子（盐度、pH值和水深）之间建立向量自回归模型（VAR）模型，通过方差分解方法分析水环境因子对水体营养状态的贡献水平，同时界定出水体营养状态处于最佳水平条件下的水环境因子的适宜范围.结果表明：水环境因子对水体营养状态的方差贡献初期表现显著而后趋于稳定，且盐度、pH值和水深指标的综合方差贡献率最高可达66.62%；并以全湖94.4%的水体面积不呈现富营养化状态作为标准界定出乌梁素海水体处于最佳营养状态水平条件下盐度、pH值和水深指标的适宜范围，分别为0.06~2.68 g/L、7.50~8.63和1.76~3.50 m，且湖泊在此营养水平条件下全湖盐度、pH值和水深指标的均值分别为1.55 g/L、8.15和2.33 m.因此，可以通过人类活动调控湖泊水环境因子值，并实施以水养湖的策略来推动湖泊水体营养状态向良性发展.;To get a better understanding of the impact...
We aim to study the impact of microalgae fertilizer on soil nutrients, water conservation and crop yield quality while also determining optimal ratio chemical fertilizer. Using “Xinoufen No.9” tomatoes as test subject, we conducted pot experiments with four different treatments: control 100% (CK), T1 (25% + 75% regular fertilizer), T2 (75% 25% fertilizer) T3 (100% fertilizer). The results show that an increased application enhanced organic matter, ammonium nitrogen, available phosphorus...
The Aquatic Systems Branch at the Fort Collins Science Center is a group of scientists dedicated to advancing interdisciplinary science and providing support solve water-related environmental issues. Natural resource managers have an increasing need for scientific information stakeholders face enormous challenges competing demands water. Our are leaders in ecological flows, riparian ecology, hydroscape ecosystem management, contaminant biology. employs develops state-of-the-science...
In this paper, we first obtained the data of each water quality monitoring point in May and July Hassel Sea 2021, analyzed spatial distribution element total phosphorus (TP), nitrogen (TN), transparency (SD), high manganese index (CODmn) chlorophyll a (Chl. a) data, then used integrated trophic state method algal species quotient to evaluate lake. The results were assess lake’s status. showed that measured value was 1.15 times May, which points H1, H2, H3 moderately eutrophic, H4, H5, H6...