Results 21 to 30 of about 14,824 (210)

State-of-the-art and challenges in global grassland degradation studies

Geography and Sustainability
Grassland ecosystems are experiencing severe deterioration due to ongoing climate fluctuation and human disturbance. Although numerous research centers on the patterns, processes, and functioning of degraded grassland, there is still a lack of standards ...
Mengqi Zhang, Jian Sun, Yi Wang, Yunhui Li, Jieji Duo   +4 more
doaj   +1 more source

Monitoring grassland degradation and restoration using a novel climate use efficiency (NCUE) index in the Tibetan Plateau, China

Ecological Indicators, 2021
Grassland degradation is one of the most pressing challenges in natural environment and anthropogenic society. However, there is yet no effective approach for monitoring the spatio-temporal pattern of large-scale grassland degradation. In particular, the
Ru An, Ce Zhang, Mengqiu Sun, Huilin Wang, Xiaoji Shen, Benlin Wang, Fei Xing, Xianglin Huang, Mengyao Fan   +8 more
doaj   +1 more source

Identification of Ratholes in Desert Steppe Based on UAV Hyperspectral Remote Sensing

Applied Sciences, 2023
This paper established a mathematical method for the spectral feature extraction of ratholes, based on UAV hyperspectral imaging technology. The degradation of grasslands is a major challenge to terrestrial ecosystems.
Xinchao Gao, Yuge Bi, Jianmin Du
doaj   +1 more source

Comprehensive degradation index for monitoring desert grassland using UAV multispectral imagery

Ecological Indicators
Desert grassland is an essential component of the northern grasslands of China, representing an ecosystem that transitions from grassland to desert. However, it is a fragile ecological environment.
Shu-han Gao, Yong-zhi Yan, Yuan Yuan, Ning Zhang, Le Ma, Qing Zhang   +5 more
doaj   +1 more source

Integrated Assessments of Land Degradation in the Three-Rivers Headwater Region of China from 2000 to 2020

Remote Sensing, 2023
Since the 1970s, certain areas within the Three-Rivers Headwater Region (TRHR) of China have faced severe land degradation due to the combined effects of climate change and human activities, leading to restricted ecological service functions and ...
Yao Pan, Yunhe Yin, Wei Cao
doaj   +1 more source

Technical Feasibility Study of Autonomous Field Robot‐Based on‐the‐go Assessment of Soil Nutrients Using Ion‐Sensitive Field‐Effect Transistors

Advanced Robotics Research, EarlyView.
Autonomous field robots equipped with ISFET‐based sensors enable rapid, spatially resolved soil nutrient analysis directly in the field. An automated system based on the BoniRob platform is presented for standardized on‐site extraction and measurement of key macronutrients and soil pH.
Vadim Riedel, Stefan Hinck, Edgar Peiter, Arno Ruckelshausen   +3 more
wiley   +1 more source

Integrated Remote Sensing Evaluation of Grassland Degradation Using Multi-Criteria GDCI in Ili Prefecture, Xinjiang, China

Land
As an important ecological barrier and animal husbandry resource base in arid and semi-arid areas, grassland degradation directly affects regional ecological security and sustainable development. Ili Prefecture is located in the western part of Xinjiang,
Liwei Xing, Dongyan Jin, Chen Shen, Mengshuai Zhu, Jianzhai Wu   +4 more
doaj   +1 more source

Underground Signals: The Ecological Power of Root Volatiles

Advanced Science, EarlyView.
Root volatiles mediate rhizosphere chemical communication, shaping interactions among plants, microbes, herbivores, and natural enemies. Their production, transport, and perception underpin ecological adaptation, multitrophic interactions, and plant resilience, offering opportunities for sustainable crop protection, resilient agroecosystems, and ...
Xueyao Cao, Nanli Song, François Verheggen, Meritxell Pérez‐Hedo, Andrea Clavijo McCormick, Antonino Cusumano, Arthur de Fouchier, Bing Wang, Chen‐Zhu Wang, Emmanuelle Jacquin‐Joly, Gary W. Felton, Geoff M. Gurr, Hao Guo, Jiancai Li, Jin Zhang, Li Chen, Manqun Wang, Michele Ricupero, Peng Han, Peng He, Qi Yan, Qingbo Tang, Qingsong Liu, Shiheng An, Xiangbo Kong, Xiaoling Sun, Xueming Ren, Yuanyuan Song, Yang Liu, Yanhui Guo, Yunhe Li, Xiao Sun   +31 more
wiley   +1 more source

Machine learning-based assessment of grassland degradation levels on the Qinghai-Tibet Plateau from 2000 to 2020

Ecological Indicators
Remote sensing (RS) technology is an indispensable tool for grassland degradation monitoring and assessment at the regional scale. However, most of these remote sensing-based grassland degradation applications rely on a limited set of common indicators ...
Yuting Chen, Cong Xu, Wenjun Liu, Hans J. De Boeck, Huoyan Zhou, Qifei Chen, Yuxin Ma, Weihong Liu, Leilei Zhao, Hengying Wang, Junsong Chen, Yingtuan Zhang, Zhiming Zhang   +12 more
doaj   +1 more source

Groundwater Rise Sustains the World's Largest Alpine Water System Under Global Warming

Advanced Science, EarlyView.
Shallow groundwater depth (SGWD) across the non‐permafrost plains of the Qinghai–Xizang Plateau decreased at averagely 0.02 m year−1, adding 31.44 Gt of freshwater storage from 2000 to 2020 and sustaining ∼53 500 km2 of alpine ecosystems. A vadose‐zone capacity of 426.6 Gt reveals these aquifers as promising reservoirs, highlighting groundwater's ...
Jianqing Du, Zhixiang Niu, Yanfen Wang, Shirui Zhou, Youqing Yang, Xiang Wei, Haishan Niu, Yitao Zhang, Anquan Xia, Yali Liu, Yanbin Hao, Kai Xue, Bingfang Wu, Xinquan Zhao, Tandong Yao, Yiyu Chen   +15 more
wiley   +1 more source