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In search of a substitution model for coca in Colombia: Buffalo, cocoa, and coffee in Peasant Reserve Zones

open access: yesLatin American Policy, Volume 14, Issue 3, Page 388-407, September 2023., 2023
Abstract For years Colombia has been the world's largest coca producer. Its public management of crops for illicit use has swung between eradication, substitution, and, recently legalization. Forced eradication has been shown to be ineffective, and legalization is an incipient option, so the Peace Agreement puts forward substitution as the path to ...
Mª Josep Cascant‐Sempere   +2 more
wiley   +1 more source

Understanding Traditional Chinese Medicine to strengthen conservation outcomes

open access: yesPeople and Nature, Volume 3, Issue 1, Page 115-128, February 2021., 2021
Abstract Numerous treatments in Traditional Chinese Medicine (TCM) involve the use of wildlife products, including some that utilize ingredients derived from endangered flora and fauna. Demand for such endangered wildlife products in TCM can threaten the survival of species and pose serious challenges for conservation.
Hubert Cheung   +8 more
wiley   +1 more source

丛枝菌根真菌促进植物摄取土壤磷的作用机制

open access: yesShuitu Baochi Xuebao, 2019
磷在土壤中易被固定沉淀,在植物磷利用率低的情况下,过度施肥会造成磷肥浪费,可能通过地表径流、地下水溶解等方式,造成水体富营养化产生面源污染,对人类生产生活造成较大影响。丛枝菌根真菌(arbuscular mycorrhizal fungi,AMF)和植物结合所形成的共生菌根可以显著增强植株对磷的吸收利用。通过AMF可以提高宿主植株对磷的吸收转运的特性,从AMF促进植株对磷元素的摄取机制、AMF促进植物磷摄取分子机理 ...
薛英龙   +7 more
doaj   +3 more sources

昭通烂泥箐滑坡源区原生状态根-土复合体抗剪特征

open access: yesShuitu Baochi Xuebao, 2022
以昭通烂泥箐滑坡源区优势物种鸢尾科鸢尾属鸢尾原生根系—土复合体作为研究对象,采用直剪试验对复合体抗剪特征进行深入研究,并与室内相同含水率重塑复合体试验结果对比分析。结果表明,整体上无根素土具有应变软化特征,而复合体具有应变硬化的特性,各复合体的抗剪强度均比素土的高,且抗剪强度随着含根量的增加而增加,根系加固效应明显,但复合体并没出现与重塑土类似的最优(最佳)含根量。原状复合体的c值随含根量的增加没有明显变化规律,而φ值则逐渐递增,其增长率也有相同的变化趋势。复合体破坏断面显示根系为主根系且垂直贯通剪切面,
徐宗恒   +4 more
doaj  

苏北海堤林带树木根系固土功能研究

open access: yesShuitu Baochi Xuebao, 1994
该文通过对海堤林带树木根系及土壤抗冲,抗蚀和渗透性的测定分析,发现同一地段土壤的抗冲,抗蚀指数表土层大于底土层。树木根系,尤其是根径≤2mm的细根有较强的固特土壤功能,抗冲指数与根长,根量间有明显的相关性,单相关系数分别为0.9326和0.8256。吸机质含量高的土壤抗蚀性强,抗蚀指数大,与有机含量间的相关系为0.8931,与细根的根长和根量的相关性相对较低,单相关系数分别为0.8216和0 ...
张金池 康立新
doaj   +2 more sources

Nitrogen deposition does not exacerbate phosphorus limitation of rhizosphere microbes in subalpine forests

open access: yesFunctional Ecology, Volume 40, Issue 5, Page 1428-1442, May 2026.
Read the free Plain Language Summary for this article on the Journal blog. Abstract The stoichiometric imbalance caused by nitrogen (N) deposition typically exacerbates phosphorus (P) limitation in plants. However, it remains unclear whether this effect extends to soil microbes, particularly those in the rhizosphere.
Jipeng Wang   +5 more
wiley   +1 more source

砒砂岩区不同灌木根系构型及根系抗拉对比

open access: yesShuitu Baochi Xuebao, 2023
对砒砂岩区各主要灌木树种根系形态进行定量研究,探究哪种水土保持植物可以有效地抵抗砒砂岩区的复合型侵蚀,以该区分布较广的灌木树种沙棘(Hippophae rhamnoides L.)、酸枣(Ziziphusjujuba M.)、连翘(Forsythia suspensa V.)、文冠果(Xanthoceras sorbifolium B.)、黄刺玫(Rosaxanthina L.)和蒙古扁桃(Amygdalus mongolica R.)单株个体为研究对象,对其根系分布范围、几何形态,拓扑指数 ...
郭月峰, 张志强, 祁伟
doaj  

Plant functional trait dissimilarity drives plant mixture effects on fine root biomass and trait variations

open access: yesNew Phytologist, Volume 249, Issue 2, Page 764-776, January 2026.
Summary Fine roots are critical for soil resource uptake, yet how declining plant diversity alters fine root biomass (RB) and traits remains unclear. We tested how plant functional trait dissimilarity in shade tolerance, drought tolerance, growth rate, and nitrogen‐fixation ability drives variation in root attributes.
Sai Peng, Yakun Zhang, Han Y. H. Chen
wiley   +1 more source

土壤粒径对灌木植物根-土摩阻特性影响

open access: yesShuitu Baochi Xuebao, 2021
为了系统性研究灌木植物根系的固土力学效应,探讨土体对根系的摩阻特性,以4种不同土壤粒径(原级配,1.0~2.0,0.5~1.0,
郭欢   +4 more
doaj  

Promoting Conservation and Coexistence: The Case of Blackbucks (Antilope cervicapra L.) and the Bishnoi Community in Abohar, Punjab, India 促进保育与共存:以印度旁遮普邦阿博哈尔的黑羚 (Antilope cervicapra L.) 和比什诺伊社区为例

open access: yesIntegrative Conservation, Volume 4, Issue 3, Page 393-404, September 2025.
We studied the challenges in human‐wildlife coexistence in Abohar wildlife sanctuary and the surrounding landscape in Punjab, India. We found that the local people's unique intrinsic motivation for conservation and the traditional approaches to conservation are no longer sufficient.
Geethanjali Mariaselvam   +5 more
wiley   +1 more source

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