Results 71 to 80 of about 659,641 (235)

Hydrologic Conditions in the Delaware River Basin, Annual Report 2003

, 2004
This is an Annual Report of the hydrological conditions in the Delaware River Basin for 2003. It includes an update on the lingering effects of the 2001-2002 drought, as well as summaries of preciptation, streamflow, reservoir storage, ground water, and ...

core   +1 more source

From Past to Future: Overall Patterns, Nonlinear Relationships, Spatial Heterogeneity and Drivers of Ecosystem Service Trade‐Offs and Synergies in the Yangtze River Economic Belt

Land Degradation &Development, EarlyView.
ABSTRACT Land‐use change and climate change are reshaping watershed ecological functions and may intensify the risk of localized ecological degradation. However, existing studies have primarily focused on the spatiotemporal patterns of ecosystem services (ESs) during historical periods, while the nonlinear changes, spatial heterogeneity, and driving ...
Jingyuan Chen, Bowen Dong, Pengfei Qin, Xuan Lin, Chen Tang   +4 more
wiley   +1 more source

Hydrologic Conditions in the Delaware River Basin, Annual Report 2005

, 2006
This is an Annual Report of the hydrological conditions in the Delaware River Basin for 2005. It includes the hydrologic highlights of 2005 ("A Year of Flood and Drought"), as well as summaries of preciptation, streamflow, reservoir storage, ground water,

core   +1 more source

Feasibility of high-helium natural gas exploration in the Presinian strata, Sichuan Basin [PDF]

, 2015
Helium in China highly depends on import at present, so the most practical way to change the situation is searching for medium-to-large natural gas fields with high helium content.
Xie, Wuren, Zhang, Jian, Cen, Yongjing, Fuying Zeng, Yi, Haiyong, Zengye Xie, Zeng, Fuying, Yongjing Cen, Yang, Wei, Jian Zhang, Wei Yang, Xie, Zengye, Wuren Xie, Haiyong Yi   +13 more
core   +1 more source

Estimation Accuracy Obviously Increased of Soil Organic Carbon Content Based on Habitat Patches Scale Using Interpretable Machine Learning in Southwest China

Land Degradation &Development, EarlyView.
ABSTRACT Although machine learning models have been successfully applied to estimate soil organic carbon (SOC), the lack of interpretability research has resulted in the absence of mechanistic explanations for these models. Therefore, in this study, we adopted the following workflow: first, we divided the whole study area into several subregions using ...
Wei Zhou, Jieyun Xiao, Haotian Liu, Lu Xu, Keming Wang   +4 more
wiley   +1 more source

Ecological Challenges and Strategic Responses to China's Quantitative Rigidity of Cultivated Land Protection

Land Degradation &Development, EarlyView.
ABSTRACT Balancing food security and ecological sustainability has become a critical challenge for land governance in rapidly urbanizing countries. China has successfully maintained national cultivated land quantity through a comprehensive farmland protection regime.
Yuzhe Wu, Zhuofan Li, Xinyan Shen
wiley   +1 more source

Water Management of the Delaware River Basin: A staff compilation of planning assumptions, policies, programs, data, and a means of managing the Basin's water resources.

, 1975
The adoption of the Delaware River Basin Compact in 1961 made possible the joint exercise of sovereign powers over the water resources of the Delaware River Basin in the common interest of the people of the region.

core   +1 more source

Post‐Fire Soil Organic Carbon Dynamics: Decline and Recovery Over Two Decades

Land Degradation &Development, EarlyView.
ABSTRACT Wildfire can significantly alter soil organic carbon (SOC) dynamics in forest ecosystems, with complex temporal patterns following fire events. However, research on post‐fire SOC recovery remains limited, particularly in dry‐warm valley regions that are prone to frequent forest fires.
Yuxin Cen, Lei Wang, Bin Zhang, Jun Luo, Qingchun Deng, Haiqing Yang, Hui Liu, Frédéric Darboux   +7 more
wiley   +1 more source

Development and Validation of a Questionnaire‐Based Model for Households With Multiple Helicobacter pylori Infections: A Family‐Based Screening Strategy

Med Research, EarlyView.
This study developed and externally validated a questionnaire‐based household risk model to identify families with multiple Helicobacter pylori infections. Using only noninvasive, readily available household information, the model showed good discrimination and enabled a family‐based screening strategy that substantially improved detection efficiency ...
Yifan Qiu, Xianzhu Zhou, Yi Hu, Liting Shen, Jiayue Wang, Shihan Xu, Huiyun Zhu, Huabing Huang, Zhaoshen Li, Yiqi Du   +9 more
wiley   +1 more source

Waves of range dynamics and gene flow characterize the biogeographic history of Litsea elongata, a dominant tree in East Asian evergreen broadleaved forests

PLANTS, PEOPLE, PLANET, EarlyView.
Evergreen broadleaved forests (EBLFs) represent an iconic vegetation type in subtropical montane East Asia, but they are experiencing intensifying anthropogenic pressure and increasing habitat fragmentation. Here, using a dominant and widespread tree species characteristic of East Asian EBLFs, we examine its phylogeographic history and evaluate what it
Sheng‐Yuan Qin, Richard H. Ree, Zheng‐Yu Zuo, Chih‐Chieh Yu, Shuang‐Xiu Xu, Jun Rong, Peng‐Fei Ma, De‐Zhu Li   +7 more
wiley   +1 more source